EP2139011A1 - Noyau magnetique pour antenne, procede de fabrication d'un noyau magnetique pour antenne et antenne - Google Patents

Noyau magnetique pour antenne, procede de fabrication d'un noyau magnetique pour antenne et antenne Download PDF

Info

Publication number
EP2139011A1
EP2139011A1 EP08740203A EP08740203A EP2139011A1 EP 2139011 A1 EP2139011 A1 EP 2139011A1 EP 08740203 A EP08740203 A EP 08740203A EP 08740203 A EP08740203 A EP 08740203A EP 2139011 A1 EP2139011 A1 EP 2139011A1
Authority
EP
European Patent Office
Prior art keywords
antenna
magnetic core
thin metal
laminate
thin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08740203A
Other languages
German (de)
English (en)
Other versions
EP2139011B1 (fr
EP2139011A4 (fr
Inventor
Daisuke Kishi
Nakao Moritsugu
Yoshitsugu Furui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Proterial Ltd
Original Assignee
Hitachi Metals Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Publication of EP2139011A1 publication Critical patent/EP2139011A1/fr
Publication of EP2139011A4 publication Critical patent/EP2139011A4/fr
Application granted granted Critical
Publication of EP2139011B1 publication Critical patent/EP2139011B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15391—Elongated structures, e.g. wires
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
    • H01Q7/08—Ferrite rod or like elongated core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15316—Amorphous metallic alloys, e.g. glassy metals based on Co
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15383—Applying coatings thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
    • H01F10/13—Amorphous metallic alloys, e.g. glassy metals
    • H01F10/138—Amorphous metallic alloys, e.g. glassy metals containing nanocrystallites, e.g. obtained by annealing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/02—Cores, Yokes, or armatures made from sheets

Definitions

  • the present invention relates to a bar-shaped magnetic core for antenna using a laminate of thin metal strips having soft magnetism, and an antenna using the magnetic core for antenna, which is used for a keyless entry system for vehicles and the like.
  • antennas having a ferrite core have been used for RFID (wireless IC tag) for a keyless entry system of a vehicle or the like.
  • RFID wireless IC tag
  • ferrite is brittle, cracks occur therein even due to slight deformation.
  • a crack generates by a shock when a key falls to the ground or when a user walks around with the key in a pocket of trousers, etc. so that properties thereof deteriorate.
  • an amorphous thin metal strip has been used for a material of the magnetic core for antenna, and the laminated amorphous thin metal strips have been used as the magnetic core.
  • patent document 1 discloses a magnetic core for antenna in which an amorphous thin metal strip is wound around a plate bobbin and a coil is wound therearound. It discloses that the end of the magnetic core can thereby have an arbitrary curved surface and thickness, and fluctuation in transmission/reception performance of the magnetic core for antenna can be prevented.
  • an object of the present invention is to provide a magnetic core for antenna that can be manufactured in an easy process and has a high Q value (i.e. antenna properties), and to provide a high-performance antenna using the magnetic core for antenna.
  • the present invention relates to a method for producing a magnetic core for antenna, wherein thin metal strips are laminate, characterized in that a thin metal band is processed into thin strips having a width of the aimed magnetic core for antenna, that the thin strips are stacked through a resin layer to form a laminate, and subsequently, the laminate is cut to have a length of the aimed magnetic core for antenna.
  • magnetic anisotropy is introduced in the magnetic core for antenna in either state of the thin metal band, the thin strip, or the laminate in a width direction thereof, and then cut is performed in the width direction thereof.
  • the width direction is a direction along a short side of the magnetic core for antenna. While the width direction may not always be perpendicular to the longitudinal direction, inclination therebetween is preferably within 20° in terms of processability and mechanical strength of products.
  • Slit is preferably used as means of processing the continuous thin metal band.
  • the processed thin strip preferably has a width of not more than 5 mm.
  • a resin layer is preferably formed by applying a polyamic acid solution that is a precursor of a thermosetting polyimide resin, because of its excellent thermal resistance. That can be used for antennas for vehicles in particular.
  • the present invention provides a magnetic core for antenna having a rectangular parallelepiped shape and comprising a laminate of thin metal strips, characterized in that projections and depressions of the thin metal strips observed on a long side of a stacking surface are larger than those on a short side of the stacking surface.
  • the present invention is also characterized in that parallel machining marks are observed only on the stacking surface along the short side.
  • a width of the magnetic core for antenna is not more than 5 mm.
  • the magnetic core for antenna preferably has a ratio of a length in relation to a width being not less than 3.
  • the thin metal band is preferably manufactured continuously in a band having a thickness of 5 to 100 ⁇ m by the roll quenching method, or manufactured by the roll quenching method and then cut to a length of not less than 50 mm. For example, it has a preferable dimension of not less than 1000 mm 2 in area.
  • a thin metal band itself manufactured by the roll quenching method or the laminate of the thin metal strips is subjected to heat treatment in a magnetic field, so that induced magnetic anisotropy is given to all over the thin metal strips.
  • the magnetic field in the magnetic heat treatment is applied in the direction to be the short side of the magnetic core for antenna, in other words, the width direction, or the thickness direction. Application of the magnetic field in this direction increases the antenna properties Q.
  • the thin metal strips are stacked through an insulating layer made of a material such as a polyimide resin.
  • a method for manufacturing the laminate may include heat press bonding.
  • the roll press method is preferable since continuous stacking can be attained.
  • the magnetic core for antenna is cut out of the laminate only along the width direction of the thin metal strip. Machining of the stacking side surface on the long side will extremely reduce the antenna properties Q of the laminate. As the reason therefor, it is presumed that when the machined surface of the stacking surface becomes larger, machining strain remains and orientation of the given induced magnetic anisotropy becomes uneven, and cutting chippages of the thin metal strip and the resin generated by machining enter between the thin metal strips so that the thin metal strips are conducted and eddy current loss easily increases.
  • Heat treatment of the thin metal strip in the magnetic field can induce magnetic anisotropy in the thin metal strip.
  • induced magnetic anisotropy is preferably given perpendicular to a magnetic flux generating direction (in the width direction or thickness direction of the thin metal strip). After the induced magnetic anisotropy is given to a continuous thin metal strip or laminate, an endmost part on the short side of the continuous thin metal strips or laminate is preferably cut off. Magnetic anisotropy is not sufficiently given at the endmost part on the short side due to an effect of a demagnetizing field. If the magnetic core for antenna includes the endmost part, the antenna properties decrease.
  • a region to be cut is preferably not less than 1 mm from the endmost part, and more preferably not less than 2 mm.
  • the end part influenced by the demagnetizing field must be included in the magnetic core for antenna as it is.
  • the elongated laminate is heat treated in the magnetic field, and then cut along the width direction thereof so as to have a desired length. Thereby, the magnetic core for antenna can be produced without wasteful cut off portions.
  • the present invention is applied to the magnetic core for antenna having a width of not more than 5 mm.
  • the demagnetizing field becomes larger as the width is smaller.
  • the production method according to the present invention is particularly preferable for producing an antenna having a width of not more than 5 mm which is difficult to give magnetic anisotropy, since the magnetic heat treatment is performed on the thin metal strip or laminate which do not have the end yet formed and then the thin metal strip or laminate is processed.
  • the width exceeds 5 mm and a thermosetting resin or the like is used as an adhesive, stacked layers easily peel off.
  • the thin metal strip is not more than 30 ⁇ m in thickness.
  • the Q value remarkably lowers and sensitivity as an antenna deteriorates, and a level of an output signal lowers, and so on.
  • the thin metal strip becomes less practical.
  • the thickness of not more than 20 ⁇ m is more preferable, and the thickness of not more than 18 ⁇ m is still more preferable.
  • the thin metal strips can be electrically insulated by the resin while they are bonded with a resin.
  • a resin polyimide, polyamide imide, epoxy, and the like can be used. From the viewpoint of productivity, it is preferable to apply a liquid resin.
  • a method for giving induced magnetic anisotropy for example, heat treatment is performed at a temperature of not more than the Curie temperature while applying a magnetic field.
  • a method for performing heat treatment in the magnetic field at a comparatively low temperature of not more than 300°C and not more than the Curie temperature of the material is preferable since embrittlement of the material is reduced and properties thereof are rather improved.
  • a relative initial magnetic permeability of the material is not so high, more effect in improvement of the Q value at 100 kHz to 150 kHz is obtained.
  • the relative initial magnetic permeability of the material may be selected depending on an application in which the material is used.
  • the thin metal strip is an (Fe, Co) SiB-based amorphous strip.
  • a CoSiB-based amorphous strip is particularly preferable.
  • an FeSiB-based amorphous strip is also preferable because of its enhanced strength.
  • a nano crystal thin metal strip such as FeSiCuB, it is necessary to deal with it carefully. In order to produce such a nano crystal thin metal strip, a thin metal strip is heat treated at a temperature of not less than a eutectic temperature, therefore causing embrittlement of the alloy strip.
  • an amount “b” of Si is in a range of 1 ⁇ b ⁇ 18, and an amount “c” of B is in a range of 5 ⁇ c ⁇ 15.
  • the antenna used for RFID and the like is used at 30 to 200 kHz, and the antenna property Q value useful for the RFID application is obtained unless the amount "b" of Si and the amount “c” of B are respectively within the above ranges.
  • the processes includes subsequently, roll quenching, slit processing, applying and drying of a resin, stacking, pressure bonding, and annealing heat treatment.
  • the thin metal band is produced by injecting molten alloy heated at a temperature of not less than the melting point (approximately 1000°C to 1500°C in the case of an usual Fe-based material and Co-based material) on a rotating metal cooling roll from a nozzle having a slit (the single rolling method).
  • the width of the nozzle slit for injection preferably approximately (a thickness of the strip to be produced) * 0.3 to 0.8 mm. Ceramics such as quartz, silicon nitride and BN are used as a material of the nozzle.
  • the thin metal band may be produced using multiple slits.
  • a gap between the cooling roll and the nozzle tip is not less than 20 ⁇ m but not more than 500 ⁇ m when the molten alloy is being injected, and is usually not more than 250 ⁇ m.
  • the thin metal band is peeled off from the cooling roll at a position of 100 to 1000 mm distant from a position of the roll outer circumference directly under the nozzle slit, measured along a roll outer circumference. Thereby, breakage hardly occurs and a continuous thin metal band having a length not less than 200 m in the longitudinal direction can be produced. Further, by holding a surface temperature of the cooling roll at a temperature of not more than 100 to 250°C, a long thin metal band can be produced with less embrittlement and smaller curvature of the strip in the width direction.
  • a metal cooling roll is often water-cooled at a time of mass production.
  • Cu and Cu alloys such as Cu-Be, Cu-Zr, and Cu-Cr have great cooling performance and are preferable when producing a wider band.
  • an amount of water for cooling the roll is 0.1 to 10 m 3 /min, a thin metal band having little curvature, breakage, embrittlement, or the like can be produced even when an amount of production is as large as not less than 5 kg.
  • a preferable amount of water is 0.1 to 1 m 3 /min.
  • a diameter of the cooling roll is usually approximately 300 to 1200 mm, and preferably approximately 400 to 1000 mm.
  • the diameter thereof is 500 to 800 mm.
  • a roll rotational speed is 20 to 40 m/s and an injection pressure is not less than 270 gf/cm 2
  • the thin metal band may be produced in inert gas such as He and Ar, if necessary.
  • He gas, CO gas, or CO 2 gas is flown near the nozzle during manufacturing, the surface properties of the thin metal band is further improved.
  • heated inert gas or nitrogen gas is flown near the nozzle during manufacturing, the surface properties of the thin metal band is also improved.
  • slit processing is performed on the thin metal band thus obtained.
  • the thin metal band 1 set on an uncoiler is withdrawn, and passed through a one pair slitter provided with a plurality of rotary knives on each of top and bottom slitter. Then, the thin metal band is cut to a size of the magnetic core for antenna to obtain a thin strip 1'. The cut thin strip is taken up on a recoiler.
  • a resin solution applied on a thin strip preferably has a thermosetting property.
  • Commercially available resins can be used. Usually, the resin is diluted to 5 to 20% by weight with a solvent for use. When a thickness after drying of the solvent is smaller, a space factor improves. However, a rate of occurrence of defects such as pinholes also increases, and insulation between adjacent strips in the laminate may be insufficient. Accordingly, 0.5 to 3 ⁇ m is preferable as the thickness after drying.
  • a dip method, a doctor blade method, a gravure roll method or the like can be used as the coating method. The gravure roll method is excellent, in terms of homogeneity of a coating thickness and productivity per time (coating speed). In order to apply the resin on both sides using the gravure roll method, it is necessary to apply the resin on one side at one time.
  • a far-infrared heater may be also used for drying.
  • a plurality of slit thin strips are withdrawn from the roll, and are continuously stacked with a hot roll.
  • the thin strips may be cut to a certain length, stacked, and placed into a mold, and then heat-pressed.
  • a commercially available resin film may be sandwiched between the laminate and the movable mold so that the laminate can released from the mold after the pressure bonding in the subsequent step.
  • the laminate is heated preferably in a nitrogen atmosphere. A temperature in a furnace is increased to a glass transition point of the coated resin. With holding the temperature, pressure is applied on the thin metal strips to bond them to each other.
  • a magnetic field of not less than 200 A/m may be applied, preferably not less than 400 A/m. Any of a direct current magnetic field, an alternating current magnetic field, or a repeated pulsed magnetic field may be used as the magnetic field to be applied. The magnetic field may be applied only in a part of a heat treatment pattern.
  • the Fe-based amorphous metal strip having the above-mentioned composition is heat treated at 300 to 400°C
  • the Co-based amorphous metal strip is heat treated at 300 to 600°C. Since the material embrittles at this time, defects such as chips and cracks may occur if pressure is applied on the amorphous metal strip laminate during annealing heat treatment. For that reason, annealing is performed preferable without applying load. In order to prevent oxidization of the thin metal strip surface, the same atmosphere as that in the pressure bonding process is preferable. Heat treatment time of 0.1 to 20 hours is preferable.
  • An atmosphere in a heat treating furnace may be inert gas such as argon or nitrogen gas, in a vacuum or in air depending on the case.
  • temperature distribution of the magnetic core during heat treatment is controlled within 10°C.
  • An average heating rate is preferably 0.3 to 100°C/min for not less than 0.5 hours, and an average cooling rate is preferably 0.3 to 300°C/min.
  • the heating rate of 1 to 20°C/min, a maximum temperature of 300 to 370°C for 1 to 3 hours are further preferable.
  • the same effect is also obtained by two-stage heat treatment, by heat treatment for a long time at low temperature of not more than 250°C, or the like.
  • the range of 320 to 350°C is preferably set in a part of a heat treatment pattern for approximately 0.2 to 1 hour.
  • a heat treatment pattern is preferable such that the magnetic core is once maintained at a temperature lower than a target temperature, then heated and maintained at the target temperature and cooled at the cooling rate of 0.3 to 5°C/min.
  • heat treatment is usually performed in an inert gas atmosphere at a dew point of not more than -30°C.
  • the present invention it is possible to provide a magnetic core for antenna having a high Q value (namely, antenna properties) and a high-performance antenna using the magnetic core for antenna with a simple production method.
  • Fig. 1 shows a laminate 3 obtained by heat treating a thin metal strip 1 in a magnetic field, and stacking the thin metal strips 1 through an insulating layer 2.
  • a longitudinal (traverse) direction in Fig. 1 is a longitudinal direction of a thin strip obtained by slitting the thin metal band produced with a hyperquenching roll.
  • a magnetic field is applied in a direction perpendicularly to the longitudinal direction, and reference numeral 4 denotes a direction of induced magnetic anisotropy.
  • the thin metal strip 1 is coated with a polyamic acid solution, which is a precursor of a polyimide resin, and pressure bonded by roll pressing.
  • a polyamic acid solution which is a precursor of a polyimide resin
  • the laminate is cut along a cutout line 5 only along a width direction (short side direction) so that the cut laminate may have a long side in the longitudinal direction thereof.
  • Order of the stacking process and annealing heat treatment process can be changed depending on a temperature of each process, and continuous processing is possible. For that reason, the manufacturing method is flexible and also has the advantage of reduction of manufacturing cost.
  • Figs. 3A and 3B are diagrams showing a process for producing a magnetic core for antenna in the prior art.
  • the thin metal band 1 is cut along a cutout line 15 in a direction perpendicularly to a direction 14 of induced magnetic anisotropy applied in the longitudinal direction, and a plurality of metal thin pieces 6 are obtained.
  • the plurality of metal thin pieces 6 are stacked through a resin layer, and a magnetic core 7 for an antenna is obtained.
  • the thin metal bands 1 are stacked through a resin layer, and a laminate 3' to which induced magnetic anisotropy is given in the longitudinal direction is obtained.
  • the laminate 3' is cut along the cutout line 15 in the direction perpendicularly to the direction 14 of induced magnetic anisotropy, and a magnetic core 7 for an antenna is obtained.
  • Chippages of the thin metal strip 1 generated in cutting adhere to the insulating layer 2 interposed between the thin metal strips 1. Since the scraps have conductivity, the chippages electrically form a short-circuit between the thin metal strips 1 across the interposed insulating layer 2. This is because a thickness of the insulating layer 2 is as thin as approximately 1 ⁇ m while a thickness of the thin metal strip 1 is usually approximately 15 to 25 ⁇ m. As a result, the thin metal strips 1 are apparently integrated although locally, and a thickness thereof increases.
  • strain is induced in the strip by cutting, so that magnetic properties deteriorate.
  • the antenna property Q value improves if the laminate 3 is immersed in an etching solution to remove the scraps after cut, or if a process for remove a cutting surface containing strain is employed.
  • the etching process causes increase of cost, and further, reliability may deteriorate due to the residual etching solution.
  • the thin metal strips are stacked, and subsequently the laminate is cut only along the width direction which is to be the short side of the magnetic core for antenna after stacked, in order to suppress the influences. This suppresses the above-mentioned influences as much as possible.
  • An amorphous magnetic band of an alloy represented by CO bal. Fe 1.3 Mn 3.7 Mo 2.5 Si 14.6 B 9.5 (atomic %) and having a width of 20 mm and a thickness of 15 ⁇ m was produced continuously.
  • the amorphous magnetic alloy band was subjected to slit processing in the longitudinal direction of the band, and a thin strip having a width of 2 mm was obtained. By winding the thin strip in a rolled form, a strip roll was produced. Then, as shown in Fig. 2B , a laminate was produced by simultaneously withdrawing the thin strips from a plurality of strip rolls.
  • a polyamic acid solution that is a precursor of a thermosetting polyimide resin was applied in 10 -3 kg/m 2 (not shown).
  • a total of 23 sheets of thin strips coated with the resin were heated at 360°C by roll pressing 10 having a feed-speed of 300 mm/min to produce a long laminate having a width of 2 mm and 23 layers.
  • the long laminate after roll pressing was subjected to annealing in order to cure the polyimide resin and remove distortion in the strips generated during the roll pressing.
  • the long laminate was passed through a magnetic field generator 8, and a magnetic field of 320 kA/m was applied to the strip in the width direction thereof.
  • the long laminate was temporarily cut by a cutting device 9 to have a length of 1 m. Then, the long laminate was cut with a revolving diamond cutter along the width direction of the strip to produce a magnetic core for antenna having a width of 2 mm, a length of 18 mm, and 23 stacked layers. On a stacking surface in a width direction of the magnetic core for antenna, a cutting trace caused by the diamond cutter was observed. While the displacement of the strips on the stacking surface in a longitudinal direction was not less than 0.5 ⁇ m, that in the width direction (short side direction) was not less than 0.5 ⁇ m.
  • Comparative Example 1 is a sample in a case where production was made in the same manner as Example 1 except that no magnetic field was applied.
  • Comparative Example 2 is a sample in a case where the thin metal band was subjected to slit processing to have a dimension (18 mm) in the longitudinal direction of the magnetic core for antenna, and then the thin metal strips were stacked, and the obtained laminate was cut in the longitudinal direction so as to have a width of 2 mm.
  • Comparative Example 3 is a sample in a case where the thin metal strips were stacked to produce a laminate, and then the obtained laminate was cut both in the longitudinal direction and in the width direction (short side direction) to produce a magnetic core for antenna.
  • Comparative Example 4 is a sample in a case where the laminate was cut in the longitudinal direction and then etched. Table 1 shows that the example 1 without etching according to the present invention can obtain the Q value as comparable with that of Comparative Example 4 (etching is essential).
  • An antenna was produced using the magnetic core for antenna of in Example 1.
  • An enamel-coated copper wire having a diameter of 0.07 mm and insulated was wound around the magnetic core for antenna for 1200 turns.
  • a magnetic field having a frequency of 40 kHz and a magnetic field strength of 14 pT was applied to the antenna from the outside as an effective value of an alternating current magnetic field corresponding to a magnetic field component of an electromagnetic wave. Then, an output voltage was measured.
  • Table 2 shows results. Table 2 shows that an output voltage comparable with that of Comparative Example 4 is obtained.
  • An amorphous magnetic alloy band represented by Co bal. Fe 1.3 Mn 3 , 7 Mo 2.5 Si 14.6 B 9.5 (atomic %) and having a width of 20 mm and a thickness of 15 ⁇ m was produced continuously.
  • the amorphous magnetic alloy band was subjected to slit processing in a longitudinal direction of the strip, and a thin strip having a width of 2 mm was obtained.
  • the thin strip was continuously passed through a heat treating furnace, and simultaneously, a magnetic field of 320 kA/m was applied to the thin strip in the width direction thereof.
  • a polyamic acid solution, that is a precursor of a thermosetting polyimide resin, was applied, in 10 -3 kg/m 2 , to the thus-obtained thin strip having magnetic anisotropy.
  • An amorphous magnetic alloy band represented by Co bal. Fe i.3 Mn 3.7 Mo 2.5 Si 14.6 B 9.5 (atomic %) and having a width of 20 mm and a thickness of 15 ⁇ m was produced continuously.
  • This amorphous magnetic alloy strip was continuously passed through a heat treating furnace, and simultaneously, a magnetic field of 320 kA/m was applied to the amorphous magnetic alloy strip in the thickness direction thereof.
  • Thus-obtained amorphous magnetic alloy band having magnetic anisotropy was subjected to slit processing in the longitudinal direction thereof, and a thin strip having a width of 2 mm was obtained.
  • a polyamic acid solution that is a precursor of a thermosetting polyimide resin was applied in 10 -3 kg/m 2 , to the thin strip. Then, 23 sheets of the thin strips coated with the resin were prepared. Subsequently, the 23 sheets of thin strips were heated at 360°C by roll pressing having a feed-speed of 300 mm/min to produce a long laminate having a width of 2 mm and 23 layers. Then, the long laminate was cut by a revolving diamond cutter in the width direction thereof to produce a magnetic core for antenna having a width of 2 mm, a length of 18 mm, and 23 stacked layers.
  • the amorphous magnetic alloy strips each having a width of 3 mm, 4.5 mm, 6 mm and 10 mm were prepared. Under the same conditions as those in Example 1 except for the width, 250 of the magnetic cores for an antenna were produced for each width mentioned above. Out of the magnetic cores for an antenna, defective items in which peeling off occurred between stacked layers of the strips of the magnetic core for antenna were discriminated by inspection, and yield rate was examined. Table 3 shows the result. When the width of the strip exceeds 5 mm, the yield rate suddenly deteriorates. As for a cause of such peeling off, it is presumed that the thermosetting polyimide resin used as the adhesive layer generates gas when drying or heating during heat treatment in a magnetic field, and the gas did not escape from the side surface of the laminate.
  • the antenna according to the present invention can be used for a radio wave receiving antenna used for radio-controlled clocks, and keyless entry systems for automobiles, residences etc., and a RFID tag system. Particularly, since the antenna according to the present invention can be miniaturized, the antenna according to the present invention has possibility of launching a new ubiquitous era.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Soft Magnetic Materials (AREA)
EP08740203.8A 2007-04-13 2008-04-10 Noyau magnetique pour antenne, procede de fabrication d'un noyau magnetique pour antenne et antenne Active EP2139011B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007106356 2007-04-13
PCT/JP2008/057102 WO2008133026A1 (fr) 2007-04-13 2008-04-10 Noyau magnétique pour antenne, procédé de fabrication d'un noyau magnétique pour antenne et antenne

Publications (3)

Publication Number Publication Date
EP2139011A1 true EP2139011A1 (fr) 2009-12-30
EP2139011A4 EP2139011A4 (fr) 2013-09-04
EP2139011B1 EP2139011B1 (fr) 2015-08-26

Family

ID=39925485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08740203.8A Active EP2139011B1 (fr) 2007-04-13 2008-04-10 Noyau magnetique pour antenne, procede de fabrication d'un noyau magnetique pour antenne et antenne

Country Status (4)

Country Link
EP (1) EP2139011B1 (fr)
JP (1) JP4471037B2 (fr)
CN (1) CN101657868B (fr)
WO (1) WO2008133026A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9381889B2 (en) 2008-12-22 2016-07-05 Kabushiki Kaisha Toshiba Antenna core and method of manufacturing the same, and antenna and detection system using the same
US20160261046A1 (en) * 2013-11-18 2016-09-08 Takashi Seigenji Method of manufacturing coil antenna and method of manufacturing coil antenna package
EP3503139A1 (fr) * 2017-12-20 2019-06-26 Bertram Ehmann Procédé et produit semi-fini de fabrication au moins un paquet-section de un composant magnétique doux, et paquet-section et composant magnétique doux
EP3557734A1 (fr) * 2018-04-16 2019-10-23 Muhr und Bender KG Procédé et dispositif de fabrication de paquets de bandes de tôles multicouche
US11594356B2 (en) 2018-09-19 2023-02-28 Amosense Co., Ltd. Magnetic field shielding sheet, method for manufacturing magnetic field shielding sheet, and antenna module using same

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5029956B2 (ja) * 2006-10-24 2012-09-19 日立金属株式会社 アンテナ用磁心とその製造方法、およびアンテナ
JP5979997B2 (ja) * 2012-06-15 2016-08-31 株式会社日立産機システム 磁心を備える装置の製造方法
TWI592957B (zh) 2014-06-23 2017-07-21 乾坤科技股份有限公司 具有分散式氣隙的磁芯部件的製作方法
WO2016017511A1 (fr) * 2014-07-28 2016-02-04 株式会社村田製作所 Composant électronique et son procédé de production
KR102480127B1 (ko) * 2016-07-08 2022-12-22 주식회사 위츠 무선 통신 안테나 및 이의 제조 방법
KR20180047889A (ko) * 2016-11-01 2018-05-10 삼성전기주식회사 안테나 장치
WO2018105473A1 (fr) * 2016-12-07 2018-06-14 パナソニック株式会社 Noyau de fer et moteur électrique
CN108231316B (zh) * 2016-12-14 2024-08-16 上海威斯科电子材料有限公司 一种非晶纳米晶模块化叠合片、磁元件及其制备方法
JP2018113522A (ja) 2017-01-10 2018-07-19 株式会社リコー アンテナ装置、通信装置、及びアンテナ装置の製造方法
CN107742575A (zh) * 2017-10-10 2018-02-27 深圳市信维通信股份有限公司 一种非晶或纳米晶带材叠层的制备方法及制造系统
CN108987092B (zh) * 2018-08-17 2021-08-24 佛山市中研非晶科技股份有限公司 块状非晶合金叠片元件的制作方法
CN109346304A (zh) * 2018-08-23 2019-02-15 广东思泉新材料股份有限公司 一种多层纳米晶片的制备方法
JP7428098B2 (ja) * 2020-07-31 2024-02-06 Tdk株式会社 インダクタ部品及びこれを用いたｄｃｄｃコンバータ
CN112398295B (zh) * 2020-10-23 2022-03-25 飞竞电机(深圳)有限公司 一种非晶合金定子冲压成型方法
CN112904699B (zh) * 2021-03-02 2022-11-04 上海科世达-华阳汽车电器有限公司 一种汽车peps系统及其消磁控制方法
US20240387104A1 (en) * 2021-09-28 2024-11-21 Proterial, Ltd. Method and apparatus for producing multilayer body of rapidly quenched soft magnetic alloy ribbons

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62140408A (ja) * 1985-12-13 1987-06-24 Mitsubishi Electric Corp 静止誘導機器用鉄心の製作方法
JPS62218036A (ja) * 1986-03-19 1987-09-25 Mitsubishi Electric Corp 電磁鋼板の切断方法
JPH05267922A (ja) * 1992-03-19 1993-10-15 Toshiba Corp 車載用アンテナ
JP3891448B2 (ja) * 1994-04-11 2007-03-14 日立金属株式会社 薄型アンテナおよびそれを用いたカード
FR2788455B1 (fr) * 1999-01-19 2001-04-06 Imphy Ugine Precision Procede de traitement d'une bande mince metallique fragile et pieces magnetiques realisees a partir d'une bande en alliage nanocristallin
US6744342B2 (en) * 2000-07-27 2004-06-01 Decristofaro Nicholas J. High performance bulk metal magnetic component
EP1473377B1 (fr) * 2002-01-16 2009-04-22 Nakagawa Special Steel Co., Ltd. Materiau de base magnetique, lamine a base de ce materiau de base magnetique et procede de fabrication
JP4045925B2 (ja) 2002-11-14 2008-02-13 アイシン精機株式会社 アンテナ用磁心
JP4148817B2 (ja) * 2003-04-09 2008-09-10 シャープ株式会社 パノラマ画像撮影装置及びパノラマ画像撮影方法
CN1871673A (zh) * 2003-10-23 2006-11-29 株式会社东芝 电感元件及其制造方法
JP4522688B2 (ja) * 2003-10-24 2010-08-11 中川特殊鋼株式会社 磁性基材および積層体とその製造方法
JP3964401B2 (ja) * 2004-04-27 2007-08-22 Ｎｅｃトーキン株式会社 アンテナ用コア、コイルアンテナ、時計、携帯電話機、電子装置
JP2008172099A (ja) * 2007-01-12 2008-07-24 Mitsui Chemicals Inc アンテナ用コアおよびアンテナ
JP2008219305A (ja) * 2007-03-02 2008-09-18 Hitachi Metals Ltd 送信アンテナ及びそれを用いた送信装置
JP4910824B2 (ja) * 2007-03-28 2012-04-04 アイシン精機株式会社 アンテナ用磁心

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9381889B2 (en) 2008-12-22 2016-07-05 Kabushiki Kaisha Toshiba Antenna core and method of manufacturing the same, and antenna and detection system using the same
US20160261046A1 (en) * 2013-11-18 2016-09-08 Takashi Seigenji Method of manufacturing coil antenna and method of manufacturing coil antenna package
EP3073573A4 (fr) * 2013-11-18 2017-06-21 Ricoh Company, Ltd. Procédé de fabrication d'antenne bobine et procédé de fabrication de corps de montage d'antenne bobine
EP3503139A1 (fr) * 2017-12-20 2019-06-26 Bertram Ehmann Procédé et produit semi-fini de fabrication au moins un paquet-section de un composant magnétique doux, et paquet-section et composant magnétique doux
EP3557734A1 (fr) * 2018-04-16 2019-10-23 Muhr und Bender KG Procédé et dispositif de fabrication de paquets de bandes de tôles multicouche
US11594356B2 (en) 2018-09-19 2023-02-28 Amosense Co., Ltd. Magnetic field shielding sheet, method for manufacturing magnetic field shielding sheet, and antenna module using same

Also Published As

Publication number Publication date
EP2139011B1 (fr) 2015-08-26
WO2008133026A1 (fr) 2008-11-06
JPWO2008133026A1 (ja) 2010-07-22
CN101657868A (zh) 2010-02-24
CN101657868B (zh) 2013-08-28
EP2139011A4 (fr) 2013-09-04
JP4471037B2 (ja) 2010-06-02

Similar Documents

Publication Publication Date Title
EP2139011B1 (fr) Noyau magnetique pour antenne, procede de fabrication d'un noyau magnetique pour antenne et antenne
CN100474461C (zh) 软磁性合金薄带、用其所制的磁性部件及其制法
EP2357656B1 (fr) Procédé de production d'un substrat stratifié en métal pour un fil supraconducteur oxyde et fil supraconducteur oxyde utilisant le substrat
JP4836749B2 (ja) 磁性シートの製造方法
EP3576111B1 (fr) Module de charge sans fil avec feuille de protection
CN113748473A (zh) 带有树脂膜的纳米结晶合金薄带的制造方法
JP3594123B2 (ja) 合金薄帯並びにそれを用いた部材、及びその製造方法
WO2005041224A1 (fr) Dispositif inductif et procede de fabrication associe
KR20080034841A (ko) 나노결정질 물질로 이루어진 스트립을 제조하는 방법 및,상기 스트립으로부터 권취된 코어를 제조하는 장치
JP2008213410A (ja) 積層板、および積層体の製造方法
EP3109872B1 (fr) Noyau de transformateur haute fréquence et son procédé de fabrication
EP2006086B1 (fr) Procede de fabrication du stratifie de bandes metalliques magnetiques souples
JP5093572B2 (ja) 積層体コアおよびその製造方法
JP2004353090A (ja) 合金薄帯並びにそれを用いた部材
JP2004048136A (ja) 薄型アンテナ
JP5029956B2 (ja) アンテナ用磁心とその製造方法、およびアンテナ
JP2004356468A (ja) 積層磁気コアおよび磁性部品
EP3109870B1 (fr) Noyau pour cavité d'accélération à haute fréquence, et son procédé de fabrication
JP5177641B2 (ja) 積層体、及びアンテナ
CN113450994B (zh) 合金薄带和磁性芯
JP2023054287A (ja) 軟磁性シートの製造方法
JP2004048135A (ja) Ｒｆｉｄ用アンテナ
JP2009253543A (ja) 積層アンテナ
WO2023190963A1 (fr) Procédé de fabrication d'un ruban d'alliage nanocristallin et procédé de fabrication d'une feuille magnétique
JP2004119402A (ja) 非晶質金属薄帯積層体及びその製造方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20091105

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20130802

RIC1 Information provided on ipc code assigned before grant

Ipc: H01F 41/02 20060101AFI20130729BHEP

Ipc: H01F 27/24 20060101ALI20130729BHEP

Ipc: H01F 17/04 20060101ALI20130729BHEP

Ipc: H01Q 7/06 20060101ALI20130729BHEP

17Q First examination report despatched

Effective date: 20140707

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150316

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 745616

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150915

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602008039794

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 745616

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150826

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151126

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151127

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20150826

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151226

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151228

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008039794

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20160530

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160430

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160410

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160430

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160410

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20080410

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160430

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150826

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20250310

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20250227

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20250305

Year of fee payment: 18