EP2458672B1 - Vehicular antenna apparatus and window glass - Google Patents

Vehicular antenna apparatus and window glass Download PDF

Info

Publication number
EP2458672B1
EP2458672B1 EP11009323.4A EP11009323A EP2458672B1 EP 2458672 B1 EP2458672 B1 EP 2458672B1 EP 11009323 A EP11009323 A EP 11009323A EP 2458672 B1 EP2458672 B1 EP 2458672B1
Authority
EP
European Patent Office
Prior art keywords
conductor
antenna
equal
frequency band
glass
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.)
Not-in-force
Application number
EP11009323.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2458672A1 (en
Inventor
Kenichiro Shimo
Mitsuro Watanabe
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.)
AGC Inc
Original Assignee
Asahi Glass Co 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 Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Publication of EP2458672A1 publication Critical patent/EP2458672A1/en
Application granted granted Critical
Publication of EP2458672B1 publication Critical patent/EP2458672B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1271—Supports; Mounting means for mounting on windscreens
    • H01Q1/1278—Supports; Mounting means for mounting on windscreens in association with heating wires or layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/44—Resonant antennas with a plurality of divergent straight elements, e.g. V-dipole, X-antenna; with a plurality of elements having mutually inclined substantially straight portions
    • H01Q9/46—Resonant antennas with a plurality of divergent straight elements, e.g. V-dipole, X-antenna; with a plurality of elements having mutually inclined substantially straight portions with rigid elements diverging from single point

Definitions

  • the present invention relates to a vehicular antenna apparatus and a window glass including a glass antenna.
  • Document EP 2 173 008 A1 discloses a high frequency glass antenna for automobiles which is capable of having an improved antenna gain without changing the shape of a defogger.
  • a defogger, an antenna conductor, a feeding portion for the antenna conductor, a grounding conductor, and a grounding-side feeding portion for the grounding conductor are disposed in or on a rear window glass sheet for automobiles, the defogger forms at least one portion of the grounding conductor, and the grounding-side feeding portion is electrically connected to the defogger.
  • Document JP 2001 326515 A discloses a non grounding type antenna provided in a blank space part at the upper or lower part of a heating filament provided on the rear window glass of a vehicle.
  • the antenna consists of a first element that is provided with first and second power feeding points at a corner part of the blank space part and defines two T-shaped parts as main filaments, and a seconding element having at least a vertical filament that is subjected to capacitance coupling with the negative electrode bus bar of the heating filament, and respectively connects the first and second elements to the internal lead wire and external lead wire of a coaxial cable.
  • Document WO 02/075844 A1 discloses a grounding structure of a vehicle glass antenna that includes: a vehicle window glass; at least one antenna element provided on the vehicle window glass that receives at least very high frequency waves; an antenna module provided on the vehicle window glass that is in electrical contact with the antenna element; and a coaxial cable including an outer conductor that is connected to the antenna module.
  • the grounding structure includes a connection that electrically connects the outer conductor to a vehicle body, thus making the vehicle body function as a part of the vehicle glass antenna.
  • Document JP 2002 185230 A discloses an isolated balanced antenna to be installed on a window glass of an openable and closable back door of a vehicle, the antenna comprising a first element which has at least one horizontal filament and is connected to a first feeder point provided in an upper part or in a lower corner of the window glass, and a second element which has at least one horizontal filament and is connected to a second feeder point installed near the first one.
  • the horizontal filaments extended from near the feeder points of the elements are capacitively coupled.
  • the length of the second element is set to ⁇ /4 ( ⁇ : wavelength) or shorter.
  • the first and second elements are connected to inside and outside conductors of an unbalanced coaxial cable, respectively.
  • DAB digital audio broadcasting
  • antenna apparatuses in which the outer conductor of a coaxial cable is grounded in the middle of the coaxial cable to the vehicle body are known as described, for example, in Japanese Laid-Open Patent Publication No. H6-276008 and Japanese Laid-Open Patent Publication No. 2006-173658 .
  • An object of the present invention is to provide a vehicular antenna apparatus and a window glass in which an antenna gain is improved at the low frequency side among the frequency band that can receive radio waves.
  • a vehicle antenna apparatus has the features disclosed in claim 1.
  • a window glass according to the present invention is a window glass comprising the above-mentioned glass antenna.
  • each plan view is one obtained when the surface of the glass is viewed in an opposing manner.
  • Each drawing is a diagram in which a state that the window glass is attached to a vehicle is viewed from the inside of the vehicle.
  • each drawing may be regarded as a diagram obtained when viewed from the outside of the vehicle.
  • the vertical direction in each plan view corresponds to the vertical direction of the vehicle, and the down side of each diagram corresponds to the road surface side.
  • the window glass is a rear window attached to the rear part of the vehicle
  • the horizontal direction in the drawing corresponds to the width direction of the vehicle.
  • the present invention may be applied to a side window attached to a side part of a vehicle or alternatively to a windscreen attached to the front part of a vehicle.
  • FIG. 1 is a plan view of a glass antenna 100 of a vehicular antenna apparatus serving as a first embodiment of the present invention.
  • the glass antenna 100 is an antenna constructed such that an antenna conductor and feeding sections are provided in a planar manner on a window glass 23.
  • the glass antenna 100 is an antenna of two-pole type that has an antenna conductor and a first feeding section 16 ("feeding section 16", hereinafter) and a second feeding section 17 (“feeding section 17", hereinafter) arranged in a side part region of the window glass 23 and that is provided in a planar manner on the window glass 23.
  • the feeding section 16 and the feeding section 17 constitute a pattern of a pair of feeding points for the antenna conductor.
  • the pair of feeding sections 16 and 17 are arranged on the window glass 23, for example, in such a manner that when the window glass 23 is attached to an opening part of a vehicle body, the feeding sections 16 and 17 are located opposite to a side edge (e.g., a pillar) of the vehicle body opening.
  • the feeding sections 16 and 17 may be arranged with a gap in between in a horizontal direction.
  • the glass antenna 100 has at least a first antenna conductor including a first element (“element 1", hereinafter) that is connected to the feeding section 16 and extends in a horizontal direction or a vertical direction.
  • element 1 a first element
  • FIG. 1 As the element 1, an element 1A linearly extends from the feeding section 16 as a starting point toward the left direction. The element 1A extends to a termination "a" being the end of the element 1.
  • FIG. 3 illustrates an element 1B extending from the feeding section 16 as a starting point toward the left direction and then bends upward and extends linearly.
  • the vehicular antenna apparatus has a coaxial cable 70 for connecting the pair of feeding sections 16 and 17 to a signal processing unit 80 (e.g., an amplifier) installed on the vehicle body side.
  • a signal processing unit 80 e.g., an amplifier
  • One end of the coaxial cable 70 is electrically connected to the pair of feeding sections 16 and 17. That is, one end of an inner conductor 71 is electrically connected to the feeding section 16, and one end of an outer conductor 72 is electrically connected to the feeding section 17.
  • the method of electrically connecting the pair of feeding sections 16 and 17 to one end of the coaxial cable 70 is not limited to a particular one. That is, the connection may be achieved by soldering or alternatively through a connector for easy connection.
  • the outer conductor 72 of the coaxial cable 70 is connected and grounded to the vehicle body through a grounding member in a middle part 74 between the pair of feeding sections 16 and 17 and the signal processing unit 80.
  • a grounding member in a middle part 74 between the pair of feeding sections 16 and 17 and the signal processing unit 80.
  • the middle part 74 the outer covering of the coaxial cable 70 is removed so that the outer conductor is exposed.
  • FIG. 1 illustrates a stopping piece 75 and a bolt 73.
  • the outer conductor in the middle part 74 is connected and grounded to the vehicle body by the stopping piece 75 and the bolt 73.
  • FIG. 2 is a diagram showing a state that the window glass 23 is attached to a vehicle.
  • the inclination angle ⁇ of the window glass 23 at the position of the pair of feeding sections 16 and 17 relative to the horizontal plane is a relatively shelving inclination angle greater than or equal to 10° and smaller than or equal to 30° (more preferably, greater than or equal to 12° and smaller than or equal to 28°)
  • the vehicular antenna apparatus according to the present invention having the above-mentioned configuration achieves an antenna gain sufficient for receiving vertically polarized radio waves.
  • the window glass 23 provided with the glass antenna 100 having at least the above-mentioned configuration is attached to the vehicle body at an inclination angle ⁇ greater than or equal to 10° and smaller than or equal to 30° and then one end of the coaxial cable 70 is connected to the pair of feeding sections 16 and 17 and the outer conductor part in the middle of the coaxial cable 70 is connected and grounded to the vehicle body, an antenna gain is obtained that is sufficient for receiving vertically polarized radio waves.
  • the other end of the coaxial cable 70 (the side opposite to the side where the pair of feeding sections 16 and 17 are connected) is connected to the signal processing unit 80.
  • the position where the inclination angle ⁇ of the window glass relative to the horizontal plane at the position of the pair of feeding sections 16 and 17 is to be defined is the middle point between the feeding section 16 and the feeding section 17.
  • the conductor length X of the outer conductor from the connection point between the feeding section 17 and one end of the coaxial cable 70 to the connection point between the middle part 74 and the vehicle body is greater than or equal to 75 mm and smaller than or equal to 175 mm or, more preferably, greater than or equal to 100 mm and smaller than or equal to 150 mm, an antenna gain sufficient for receiving vertically polarized radio waves is obtained effectively.
  • the glass antenna 100 may be arranged on the window glass 23 provided with a defogger 30 having a plurality of heater wires running in parallel to each other.
  • the antenna conductor and the feeding sections are arranged above the defogger 30.
  • the defogger 30 is a pattern of electric heating type having: a plurality of heater wires running in parallel to each other (in FIG. 1 , upper heater wires 30a, 30b, and the like are illustrated and heater wires below them are omitted); and a plurality of belt-shaped bus bars for supplying electric power to the heater wires (in FIG. 1 , one bus bar 31 is located in a side part on one side of the window glass 23).
  • the plurality of heater wires are arranged on the window glass 23, for example, such as to run in parallel to the horizontal plane (the ground surface) in a state that the window glass 23 is attached to the vehicle. It is sufficient that the number of heater wires running in parallel to each other is two or greater.
  • the plurality of heater wires running in parallel to each other may be connected to each other through a short circuit line.
  • FIG. 1 shows a case that short circuit lines 32 and 33 are provided in the center 40 of the horizontal direction and its both sides (short circuit lines on the left side are not shown).
  • the short circuit lines may be used as adjustment of the antenna gain of the glass antenna. Further, their length may be adjusted appropriately, and one, two, or more, or none short circuit line may be employed.
  • at least one bus bar 31 is provided respectively in the left-side region and the right-side region of the window glass 23, and extends in a vertical direction or in an approximately vertical direction of the window glass 23 (the bus bar in the left-side region is not shown).
  • the bus bar 31 in the right-side region is connected through a right-side coil 50 to a grounding site such as the vehicle body.
  • the bus bar in the left-side region is connected through a left-side coil (not shown) to the positive electrode side of a DC power supply installed on the vehicle body side. This DC power supply energizes the heater wires.
  • the right-side coil 50 and the left-side coil has a high impedance at least in a predetermined frequency band received by the glass antenna 100, for example, at frequencies of VHF band or higher, and hence suppresses passage of electric signals at the frequencies.
  • the glass antenna 100 may include a second antenna conductor including a connection element 2a connected to the defogger 30.
  • the frequency characteristic in the antenna gain of the element 1 can be adjusted.
  • the element 1 is close to at least a part of the second antenna conductor.
  • FIG. 1 illustrates a second element (“element 2A", hereinafter) having a loop shape. Since at least one of the element 2A and the defogger 30 runs in parallel to the element 1, the antenna gain on the lower frequency side within the frequency band whose receiving is achieved by the element 1 is improved.
  • FIG. 4A illustrates an element 2B
  • FIG. 4B illustrates an element 2C.
  • the element 2A in FIG. 1 is an example of arrangement above the element 1A.
  • the elements 2B and 2C in FIGS. 4A and 4B are examples of arrangement below the element 1A. In the elements 2B and 2C, the element 2C has a longer loop circumference.
  • the element 2A has: a loop element 2b; and the connection element 2a for connecting the loop element 2b to the uppermost heater wire 30a of the defogger 30.
  • the connection element 2a linearly extends upward from a point b as a starting point and then is connected to the loop element 2b at point c.
  • the loop shape of the loop element 2b may be a quadrangle, a circle, an ellipse, or a polygon. Then, the antenna gain on the lower frequency side within the frequency band whose receiving is achieved by the element 1 is improved.
  • the first antenna conductor including the element 1 may also include a third element that is connected to the feeding section 17 and extends in a horizontal direction.
  • the third element is employed, the frequency characteristic in the antenna gain of the element 1 can be adjusted.
  • an element 3 linearly extends from the feeding section 17 as a starting point toward the left direction.
  • the element 3 extends to the termination g being the end of the third element.
  • the first antenna conductor including the element I may also include a fourth element that is connected to the feeding section 16 and extends in a vertical direction, and may also include a fifth element that is connected to the feeding section 17 and extends in a vertical direction.
  • an element 4 linearly extends upward from the feeding section 16 as a starting point.
  • an element 5 linearly extends downward from the feeding section 17 as a starting point.
  • the element 4 extends to the termination h being the end of the fourth element, and the element 5 extends to the termination i being the end of the fifth element.
  • radio waves of L band of DAB or higher are receivable.
  • the frequency characteristic in the antenna gain for L band of DAB or higher can be adjusted.
  • the glass antenna has an embodiment illustrated in each diagram, even when tuning is performed on the length or the like of the first antenna conductor and/or the second antenna conductor such that radio waves in the lower frequency band of the dual bands of DAB or the like are received in a state that a predetermined requirement is satisfied, the receiving characteristic for radio waves in the higher frequency band of the dual bands is hardly affected. Similarly, even when tuning is performed on the length or the like of the fourth element and/or the fifth element such that radio waves in the higher frequency band of the dual bands are received in a state that a predetermined requirement is satisfied, the receiving characteristic for radio waves in the lower frequency band of the dual bands is hardly affected. That is, tuning is achieved easily.
  • the antenna conductor, the feeding section 16, and the feeding section 17 are fabricated by printing and baking a pattern with paste such as silver paste containing a conductive metal, for example, onto the inner surface of the vehicle window glass.
  • a pattern with paste such as silver paste containing a conductive metal, for example, onto the inner surface of the vehicle window glass.
  • the method of fabrication is not limited to this. That is, a linear member or a foil-shaped member composed of a conductive substance such as copper may be formed on the inner surface or the outer surface of the vehicle window glass. Alternatively, such a member may be bonded to the window glass with adhesives or the like. Further, such a member may be provided in the inside of the window glass itself.
  • the shapes of the feeding section 16 and the feeding section 17 and the gap between the feeding section 16 and the feeding section 17 may be determined depending on the shape of the mounting surface of the above-mentioned connector and its gap on the mounting surface.
  • a quadrangular shape such as a square, an approximate square, a rectangle, and an approximate rectangle, as well as a polygonal shape, is preferable for mounting.
  • a circular shape such as a circle, an approximate circle, an ellipse, and an approximate ellipse may be employed.
  • the areas of the feeding section 16 and the area of the feeding section 17 may be identical to or different from each other.
  • a conductor layer consisting of each antenna conductor may be provided in the inside or on the surface of a film composed of synthetic resin. Then, the synthetic resin film provided with the conductor layer may be provided on the inner surface or the outer surface of the vehicle window glass plate so that a glass antenna may be formed. Alternatively, a flexible circuit board on which each antenna conductor is formed may be provided on the inner surface or the outer surface of the vehicle window glass plate so that a glass antenna may be formed.
  • a concealment layer may be formed on the surface of the window glass 23. Then, a part or the entirety of the feeding sections and the antenna conductor may be provided on this concealment layer.
  • the concealment layer may be fabricated from a ceramic material such as a black ceramics layer.
  • the part of the antenna conductor provided on the concealment layer is unseen from the outside of the vehicle by virtue of the concealment layer so that a satisfactory design property is achieved in the window glass.
  • a part of the feeding sections and the antenna conductor is formed on the concealment layer (between the edges 33a and 33b of the concealment layer and the edges of the window glass 23).
  • a first broadcasting frequency band and a second broadcasting frequency band higher than the first broadcasting frequency band are employed.
  • the wavelength in the air at the center frequency of the first broadcasting frequency band is denoted by ⁇ 01
  • the conductor length L1A of the element 1A corresponding to the horizontal component of the element 1 is greater than or equal to (1/12) ⁇ g1 and smaller than or equal to (1/4) ⁇ g1 or, more preferably, greater than or equal to (1/10) ⁇ g1 and smaller than or equal to (1/6) ⁇ g1 within a range that the element 1A is not in contact with the conductor located on the left of the element 1A, a preferable result is obtained with respect to improvement in the antenna gain in the first broadcasting frequency band.
  • band III (174 to 240 MHz) is set up as the first broadcasting frequency band
  • the center frequency is 207 MHz.
  • the conductor length L1A of the element 1A is adjusted to be greater than or equal to 70 mm and smaller than or equal to 200 mm or, more preferably, greater than or equal to 80 mm and smaller than or equal to 130 mm.
  • the conductor length L3 of the element 3 corresponding to the third element is smaller than or equal to (1/12) ⁇ g1 or, more preferably, smaller than or equal to (1/14) ⁇ g1 within a range that the element 3 is not in contact with the conductor located on the left of the element 3, a preferable result is obtained with respect to improvement in the antenna gain in the first broadcasting frequency band.
  • the conductor length L3 of the element 3 is adjusted to be smaller than or equal to 70 mm or, more preferably, smaller than or equal to 55 mm.
  • a first broadcasting frequency band and a second broadcasting frequency band higher than the first broadcasting frequency band are employed.
  • the wavelength in the air at the center frequency of the second broadcasting frequency band is denoted by ⁇ 02
  • the length (L4+E) of a conductor route that joins the termination h being the end of the element 4 to the end of the feeding section 16 with the minimum length is greater than or equal to 0.17 ⁇ g2 and smaller than or equal to 0.27 ⁇ g2 or, more preferably, greater than or equal to 0.19 ⁇ g2 and smaller than or equal to 0.26 ⁇ g2 , a preferable result is obtained with respect to improvement in the antenna gain in the second broadcasting frequency band.
  • the end of the feeding section 16 corresponds to the lower end of the feeding section 16 being opposite to the feeding section 17. Further, E of (L4+E) corresponds to the length of one vertical side of the feeding section 16.
  • L band (1452 to 1492 MHz) is set up as the second broadcasting frequency band
  • the center frequency is 1472 MHz.
  • the length (L4+E) of the conductor route is adjusted to be greater than or equal to 26 mm and smaller than or equal to 40 mm or, more preferably, greater than or equal to 30 mm and smaller than or equal to 38 mm.
  • the length (L5+E) of a conductor route that joins the termination i being the end of the element 5 to the end of the feeding section 17 with the minimum length is greater than or equal to 0.07 ⁇ g2 and smaller than or equal to 0.2 ⁇ g2 or, more preferably, greater than or equal to 0.13 ⁇ g2 and smaller than or equal to 0.19 ⁇ g2 , a preferable result is obtained with respect to improvement in the antenna gain in the second broadcasting frequency band.
  • the end of the feeding section 17 corresponds to the upper end of the feeding section 17 being opposite to the feeding section 16.
  • E of (L5+E) corresponds to the length of one vertical side of the feeding section 17.
  • the length (L5+E) of the conductor route is adjusted to be greater than or equal to 12 mm and smaller than or equal to 30 mm or, more preferably, greater than or equal to 20 mm and smaller than or equal to 28 mm.
  • the antenna gain was measured in a state that the vehicular window glass on which the glass antenna was formed was assembled to a window frame of a vehicle on a turntable at an inclination of approximately 20° relative to a horizontal plane.
  • a connector was attached to the feeding sections and connected through a feeder wire to a network analyzer. Radio waves were projected horizontally onto the window glass. Then, by rotating the turntable, the angle of radio wave projection relative to the window glass was varied.
  • the measurement of antenna gain was performed in a state that the vehicle center of the vehicle provided with the glass of the glass antenna was set at the center of the turntable. Then, the vehicle was rotated by 360° with projecting radio waves at a predetermined frequency. Then, the average was calculated.
  • the data of antenna gain was measured at every 3° of rotation angle at every 3 MHz for the frequency range of band III (170 to 240 MHz) and at every 1.7 MHz for the frequency range of L band.
  • the antenna gain was standardized with reference to a half-wavelength dipole antenna such that the half-wavelength dipole antenna should have 0dBd.
  • FIG. 5 shows the data of actual measurement of antenna gain for a vehicular high-frequency glass antenna constructed by attaching the glass antenna 100 of the embodiment shown in FIG. 1 to the rear window of an actual vehicle, in a case that the conductor length X (the grounding point X) of the outer conductor from the pair of feeding sections 16 and 17 to the middle part 74 was varied.
  • the vertical axis in FIG. 5 indicates the average of the antenna gain over the entirety of band III.
  • the dimensions of the individual sections of the glass antenna 100 measured in FIG. 5 with the unit of mm were as follows.
  • L* (* indicates a symbol) denotes the conductor length of an element *.
  • the conductor width of each element was 0.8 mm.
  • Each of the feeding section 16 and the feeding section 17 had a square shape with a side length of 10 mm.
  • the gap between the feeding section 16 and the feeding section 17 was 20 mm.
  • the gap between the element 2A and the element 1A was 5 mm.
  • the antenna gain for band III is -18.3dBd (not shown) when the outer conductor of the middle part 74 in the middle of the coaxial cable 70 is not grounded to the vehicle body, the antenna gain for band III was improved when the grounding point X was greater than or equal to 75 mm and smaller than or equal to 175 mm.
  • FIG. 6 shows the data of actual measurement of antenna gain in a case that the conductor length L1A of the element 1A was varied in a vehicular high-frequency glass antenna constructed by attaching the glass antenna 100 of the embodiment shown in FIG. 1 to the rear window of an actual vehicle.
  • the vertical axis in FIG. 6 indicates the average of the antenna gain over the entirety of band III.
  • the grounding point X measured in FIG. 6 was located at 150 mm. The other dimensions were similar to those of Example 1.
  • the antenna gain for band III is improved.
  • the antenna gain data in a case that the conductor length L1A was greater than or equal to 110 mm and smaller than or equal to 200 mm was converged near -6.5dBd.
  • the data is omitted in FIG. 6 .
  • FIG. 7 shows the data of actual measurement of antenna gain in a case that the conductor length L3 of the element 3 was varied in a vehicular high-frequency glass antenna constructed by attaching the glass antenna 100 of the embodiment shown in FIG. 1 to the rear window of an actual vehicle.
  • the vertical axis in FIG. 7 indicates the average of the antenna gain over the entirety of band III.
  • the grounding point X measured in FIG. 7 was located at 150 mm. The other dimensions were similar to those of Example 1.
  • FIG. 8 shows the data of actual measurement of antenna gain for a vehicular high-frequency glass antenna constructed by attaching only the elements 1A, 3, 4, and 5 and the feeding sections 16 and 17 among the components in the glass antenna 100 of the embodiment shown in FIG. 1 , to the rear window of an actual vehicle.
  • the data shows comparison between the presence and the absence of the element 2A.
  • the vertical axis in FIG. 8 indicates the antenna gain at each frequency measured every 3 MHz in band III.
  • the grounding point X was located at 150 mm at the time of measurement shown in FIG. 8 .
  • the other dimensions were similar to those of Example 1.
  • the antenna gain is improved in the lower-frequency range (174 to 210 MHz) of band III.
  • the antenna gain is obtained regardless of the presence or absence of the element 2A.
  • the average of the antenna gain measured every 3 MHz over the entirety of band III was calculated for the cases that a notch was provided and not provided between the c-f part of the loop element 2b in a vehicular high-frequency glass antenna constructed by attaching the glass antenna 100 of the embodiment shown in FIG. 1 to the rear window of an actual vehicle.
  • the grounding point X at the time of measurement in Example 5 was located at 150 mm. The other dimensions were similar to those of Example 1.
  • the average of the antenna gain over the entirety of band III was -7.2dBd when a 5-mm notch extending from point c to the right was provided, and -6.3dBd when no notch was provided.
  • a notch that is, a configuration like that shown in FIG. 1 where the loop is not broken
  • each vehicular high-frequency glass antenna constructed by independently attaching the glass antenna 100 of the embodiment shown in FIG. 1 or alternatively the glass antenna 200 of the embodiment shown in FIG. 3 to the rear window of an actual vehicle, the average was calculated for the antenna gain measured every 3 MHz over the entirety of band III. That is, comparison was performed between a case that the element 1A extends in a horizontal direction and a case that the element 1B extends in a vertical direction.
  • the grounding point X at the time of measurement in Example 6 was located at 150 mm.
  • the other dimensions were similar to those of Example 1 (similarly, the conductor length of the element 1B was 100 mm).
  • the average of the antenna gain over the entirety of band III was -6.3dBd for the element 1A and -6.5dBd for the element 1B. That is, no substantial difference was found between the antenna gains of the elements 1A and 1B.
  • each vehicular high-frequency glass antenna constructed by independently attaching the glass antenna 100 of the embodiment shown in FIG. 1 or the glass antenna 300A of the embodiment shown in FIG. 4A or the glass antenna 300B of the embodiment shown in FIG. 4B to the rear window of an actual vehicle, the average was calculated for the antenna gain measured every 3 MHz over the entirety of band III. That is, the loop elements 2A, 2B, and 2C were compared with each other.
  • the grounding point X at the time of measurement in Example 7 was located at 150 mm.
  • Example 7 The dimensions of the individual sections of the glass antenna 300A measured in Example 7 with the unit of mm were as follows.
  • Example 7 The dimensions of the individual sections of the glass antenna 300B measured in Example 7 with the unit of mm were as follows.
  • the average of the antenna gain over the entirety of band III was -6.3dBd for the element 2A, -11.1dBd for the element 2B, and -7.7dBd for the element 2C. That is, it has been found that the configuration of the element 2A in which the second element having a loop shape is arranged above the element 1A is preferable with respect to improvement in the antenna gain in comparison with the configurations of the elements 2B and 2C in which the second element having a loop shape is arranged below the element 1A.
  • FIG. 9 shows the data of actual measurement of antenna gain for a vehicular high-frequency glass antenna constructed by attaching the glass antenna 100 of the embodiment shown in FIG. 1 to the rear window of an actual vehicle, in a case that the conductor length L2b corresponding to the circumference of the loop element 2b was varied by simultaneously changing by the same amount the conductor length between c-d and the conductor length between e-f of the loop element 2b.
  • the vertical axis in FIG. 9 indicates the average of the antenna gain over the entirety of band III.
  • the grounding point X at the time of measurement in FIG. 9 was located at 150 mm. The other dimensions were similar to those of Example 1.
  • the antenna gain increases with increasing conductor length L2b corresponding to the circumference of the loop element 2b.
  • Example 9 In a vehicular high-frequency glass antenna constructed by attaching the glass antenna 100 of the above-mentioned embodiment to the rear window of an actual vehicle, the average was calculated for the antenna gain measured every 3 MHz over the entirety of band III and for the antenna gain measured every 1.7 MHz over the entirety of L band.
  • the grounding point X at the time of measurement in Example 9 was located at 150 mm. The other dimensions were similar to those of Example 1.
  • the first and the second frequency bands are assigned, for example, to VHF band of 30 MHz to 0.3 GHz.
  • the applications of the radio waves of VHF band include an FM broadcasting band (76 MHz to 90 MHz) in Japan, an FM broadcasting band (88 MHz to 108 MHz) in the U.S., a television VHF band (90 MHz to 108 MHz, 170 MHz to 222 MHz), the band III (174 MHz to 240 MHz) of DAB, the L band (1452 MHz to 1492 MHz) of DAB, and a DMB (Digital Multimedia Broadcasting) band in South Korea.
  • the first frequency band is used as VHF band and the second frequency band is used as the lower-frequency side of UHF band of 0.3 GHz to 3 GHz.
  • the applications of radio waves on the lower-frequency side of UHF band include a vehicle-use keyless entry system (300 MHz to 450 MHz) and an 800 MHz band (810 MHz to 960 MHz) for vehicle mobile phones.

Landscapes

  • Details Of Aerials (AREA)
EP11009323.4A 2010-11-24 2011-11-24 Vehicular antenna apparatus and window glass Not-in-force EP2458672B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010261799A JP5655522B2 (ja) 2010-11-24 2010-11-24 車両用アンテナ装置

Publications (2)

Publication Number Publication Date
EP2458672A1 EP2458672A1 (en) 2012-05-30
EP2458672B1 true EP2458672B1 (en) 2016-08-10

Family

ID=45217133

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11009323.4A Not-in-force EP2458672B1 (en) 2010-11-24 2011-11-24 Vehicular antenna apparatus and window glass

Country Status (3)

Country Link
EP (1) EP2458672B1 (ja)
JP (1) JP5655522B2 (ja)
AU (1) AU2011253663A1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6251476B2 (ja) * 2012-12-20 2017-12-20 セントラル硝子株式会社 車両用ガラスアンテナ
JP2017005354A (ja) * 2015-06-05 2017-01-05 旭硝子株式会社 車両用ガラスアンテナ及び車両用アンテナを備えた後部窓ガラス
EP3321115B1 (en) * 2015-07-09 2022-08-24 Nippon Sheet Glass Company, Limited Vehicle window glass
JP6319407B2 (ja) * 2016-11-29 2018-05-09 セントラル硝子株式会社 車両用ガラスアンテナ
JP6868396B2 (ja) * 2017-01-11 2021-05-12 日本板硝子株式会社 窓ガラス
JP6812824B2 (ja) * 2017-02-14 2021-01-13 Ａｇｃ株式会社 車両用窓ガラス
JP6812825B2 (ja) * 2017-02-14 2021-01-13 Ａｇｃ株式会社 ガラスアンテナ及び車両用窓ガラス
JP7013824B2 (ja) * 2017-02-14 2022-02-15 Ａｇｃ株式会社 ガラスアンテナ及び車両用窓ガラス

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005101809A (ja) * 2003-09-24 2005-04-14 Central Glass Co Ltd 車両用後部窓ガラス
EP1763105A1 (en) * 2004-06-29 2007-03-14 Nippon Sheet Glass Company, Limited Hot-wire pattern structure of defogger formed on vehicle-use rear glass and vehicle-use rear glass
EP2190058A1 (en) * 2008-11-21 2010-05-26 Asahi Glass Co., Ltd. Glass antenna and window glass for vehicle

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5657029A (en) * 1993-02-09 1997-08-12 Nippon Sheet Glass Co., Ltd. Glass antenna device for automobile telephone
JPH06276008A (ja) * 1993-03-18 1994-09-30 Nippon Sheet Glass Co Ltd 自動車電話用窓ガラスアンテナ装置
US5923298A (en) 1997-04-30 1999-07-13 Ford Motor Company Multiband reception antenna for terrestrial digital audio broadcast bands
US6160518A (en) 1999-04-02 2000-12-12 Visteon Global Technologies, Inc. Dual-loop multiband reception antenna for terrestrial digital audio broadcasts
JP3630616B2 (ja) * 2000-05-15 2005-03-16 セントラル硝子株式会社 車両用ガラスアンテナ
JP4225373B2 (ja) * 2000-12-13 2009-02-18 セントラル硝子株式会社 車両用のガラスアンテナ
JP2006173658A (ja) * 2001-03-15 2006-06-29 Nippon Sheet Glass Co Ltd 自動車用ガラスアンテナの接地構造
TW574771B (en) 2002-07-16 2004-02-01 Yen Tjing Ling Ind Dev Foundat Multi-band mono-input complex winding antenna
EP1732160A1 (en) 2005-06-10 2006-12-13 Matsushita Electric Industrial Co., Ltd. Dual-band digital audio broadcasting antenna
KR20100024382A (ko) * 2007-06-22 2010-03-05 아사히 가라스 가부시키가이샤 자동차용 고주파 유리 안테나
JP4941171B2 (ja) * 2007-08-20 2012-05-30 セントラル硝子株式会社 車両用ガラスアンテナ
JP2010154504A (ja) * 2008-11-20 2010-07-08 Asahi Glass Co Ltd 車両用ガラスアンテナ及び車両用窓ガラス

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005101809A (ja) * 2003-09-24 2005-04-14 Central Glass Co Ltd 車両用後部窓ガラス
EP1763105A1 (en) * 2004-06-29 2007-03-14 Nippon Sheet Glass Company, Limited Hot-wire pattern structure of defogger formed on vehicle-use rear glass and vehicle-use rear glass
EP2190058A1 (en) * 2008-11-21 2010-05-26 Asahi Glass Co., Ltd. Glass antenna and window glass for vehicle

Also Published As

Publication number Publication date
EP2458672A1 (en) 2012-05-30
JP5655522B2 (ja) 2015-01-21
AU2011253663A1 (en) 2012-06-07
JP2012114669A (ja) 2012-06-14

Similar Documents

Publication Publication Date Title
EP2458672B1 (en) Vehicular antenna apparatus and window glass
EP3101728B1 (en) Glass antenna for vehicle and rear window glass with glass antenna for vehicle
US8217845B2 (en) High frequency glass antenna for automobiles
EP2323221B1 (en) Glass antenna
US8456373B2 (en) Glass antenna and window glass for vehicle
EP3101734B1 (en) Glass antenna
WO2013094470A1 (ja) 車両用ガラスアンテナ
JP5942851B2 (ja) 車両用ガラスアンテナ及び車両用窓ガラス
JP2009246844A (ja) 自動車用高周波ガラスアンテナ及び自動車用の窓ガラス板
JP5141500B2 (ja) 車両用ガラスアンテナ及び車両用窓ガラス
US11742563B2 (en) Backdoor and rear glass
US8330664B2 (en) Glass antenna and window glass for vehicle
EP2597726A1 (en) Vehicle antenna
JP2000244220A (ja) 車両用窓ガラスアンテナ
US8564489B2 (en) Glass antenna and window glass for vehicle
JP2010114782A (ja) 車両用ガラスアンテナ及び車両用窓ガラス
EP2355237B1 (en) Glass antenna and vehicular window glass including the same
JP7205259B2 (ja) 車両用ガラスアンテナ、車両用窓ガラス及び車両用アンテナシステム
EP2555321A1 (en) Glass antenna
JP5493727B2 (ja) ガラスアンテナ用フィルタ装置及び車両用窓ガラス
JP5499810B2 (ja) 車両用ガラスアンテナ及び車両用窓ガラス
JP7296540B2 (ja) 車両用窓ガラス
JP7211275B2 (ja) 車両用窓ガラス
JP5493728B2 (ja) 車両用ガラスアンテナ及び車両用窓ガラス
JP2001007624A (ja) 自動車用ガラスアンテナ

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

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20121130

17Q First examination report despatched

Effective date: 20130108

RIC1 Information provided on ipc code assigned before grant

Ipc: H01Q 1/12 20060101AFI20160121BHEP

Ipc: H01Q 5/20 20150101ALI20160121BHEP

Ipc: H01Q 9/46 20060101ALI20160121BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160318

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): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM 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

Ref country code: AT

Ref legal event code: REF

Ref document number: 819768

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160815

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: 602011028912

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20160810

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 819768

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160810

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

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: 20160810

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: 20160810

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: 20161110

Ref country code: RS

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: 20160810

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: 20160810

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: 20160810

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: 20161210

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

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: 20160810

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: 20161212

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: 20160810

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: 20160810

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: 20161111

Ref country code: BE

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

Effective date: 20161130

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: 20160810

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: 20160810

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: 20160810

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: 20160810

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602011028912

Country of ref document: DE

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

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: 20160810

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: 20160810

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: 20160810

Ref country code: SM

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: 20160810

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: 20160810

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: 20161110

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

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20170511

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: 20161130

Ref country code: CH

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

Effective date: 20161130

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: 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: 20160810

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

Ref country code: LU

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

Effective date: 20161130

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

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: 20161124

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

Ref country code: DE

Payment date: 20171121

Year of fee payment: 7

Ref country code: FR

Payment date: 20171121

Year of fee payment: 7

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

Ref country code: GB

Payment date: 20171123

Year of fee payment: 7

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: 20111124

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: 20160810

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

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: 20160810

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: 20160810

Ref country code: MK

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: 20160810

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: 20160810

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602011028912

Country of ref document: DE

Representative=s name: MUELLER-BORE & PARTNER PATENTANWAELTE PARTG MB, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 602011028912

Country of ref document: DE

Owner name: AGC INC., JP

Free format text: FORMER OWNER: ASAHI GLASS COMPANY, LIMITED, TOKYO, JP

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

Ref country code: MT

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

Effective date: 20161124

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

Ref country code: AL

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: 20160810

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602011028912

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20181124

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

Ref country code: FR

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

Effective date: 20181130

Ref country code: DE

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

Effective date: 20190601

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

Ref country code: GB

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

Effective date: 20181124