CN1180455C - Vacuum fluorescent display - Google Patents
Vacuum fluorescent display Download PDFInfo
- Publication number
- CN1180455C CN1180455C CNB01124268XA CN01124268A CN1180455C CN 1180455 C CN1180455 C CN 1180455C CN B01124268X A CNB01124268X A CN B01124268XA CN 01124268 A CN01124268 A CN 01124268A CN 1180455 C CN1180455 C CN 1180455C
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- China
- Prior art keywords
- shell
- cover
- display
- gap
- light
- 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.)
- Expired - Fee Related
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/52—Screens for shielding; Guides for influencing the discharge; Masks interposed in the electron stream
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/54—Screens on or from which an image or pattern is formed, picked-up, converted, or stored; Luminescent coatings on vessels
- H01J1/62—Luminescent screens; Selection of materials for luminescent coatings on vessels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/863—Passive shielding means associated with the vessel
- H01J2229/8638—Ionising radiation shielding, e.g. X-rays
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- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
A vacuum fluorescent display includes a cathode electrode, grid electrode, anode electrode, at least one envelope, phosphor screen, and cap. The cathode electrode emits electrons. The grid electrode extracts the electrons from the cathode electrode. The anode electrode accelerates the electrons extracted from the cathode electrode. The envelope accommodates the cathode electrode, grid electrode, and anode electrode in vacuum space and has a phosphor screen plate having light transmission properties. The phosphor screen is formed on an inner surface of the phosphor screen plate of envelope and adapted to emit light upon bombardment of the electrons accelerated by the anode electrode. The cap is made of an X-ray shielding material and supported outside the envelope so as to surround the phosphor screen plate of the envelope through a gap. The cap has a light exit portion from which the light emitted from the phosphor screen emerges through the phosphor screen plate of the envelope.
Description
Technical field
The present invention relates to have the vacuum fluorescent display of luminescent fluorescent powder when electron bombard.
Background technology
Routinely, this class vacuum fluorescent display has the shell that constitutes display surface, and display surface has light transmission at least in part.By forming fluorescence coating to the inboard fluorescent material that applies of the display surface of this shell.In the vacuum space of anode arrangement shell of extracting the grid of electronics to the negative electrode of fluorescence coating emitting electrons, from negative electrode and the electronics that extracts from negative electrode being quickened.Grid is quickened and makes the electron bombard fluorescence coating from the electronics that negative electrode extracts by anode.Thereby by the bump of electronics, excitation forms the fluorescent material of fluorescence coating, and fluorescence coating is with the colour light emitting corresponding with the fluorescent material of being excited.The light that sends from fluorescence coating passes through the light film from the display surface outgoing.
At this moment, if anode applies high voltage, accelerate to electron bombard fluorescence coating at a high speed to improve brightness.Yet when electron bombard, the temperature of fluorescence coating sharply raises, and brightness sharply reduces.Because the bombardment electronics has high-energy, the X ray amount that fluorescence coating produces increases, and undesirably outwards reveals X ray from display surface.
Generation for rapid rising of the temperature that suppresses fluorescence coating and X ray routinely, suppresses the voltage that is applied to anode lower.Yet, when the voltage that is applied to anode reduces, can not obtain high-luminance light.
In the cathode ray tube of some projection type, take to utilize thick vacuum casting to prevent the precautionary measures that X ray is revealed and utilize liquid cooling mechanism to prevent the precautionary measures that fluorescence coating is overheated respectively.In this case, it is big that the size of cathode ray tube and weight become, and therefore can not adopt in undersized vacuum fluorescent display.Reveal the display surface (screen plate) of available lead glass manufacturing shell for preventing X ray.Yet, in this case, because of heating produces the blackout phenomenon.Therefore, can not make the display surface of shell with lead glass.
Summary of the invention
An object of the present invention is to provide a kind of X ray that utilizes simple structure to prevent fluorescence coating reveals and overheated vacuum fluorescent display.
Another object of the present invention provides to improve and is applied to the voltage of anode so that can obtain the vacuum fluorescent display of high-luminance light.
For realizing top purpose, according to the present invention, provide a kind of vacuum fluorescent display, comprising: the negative electrode of emitting electrons; Extract the grid of electronics from described negative electrode; The anode that the electronics that extracts from described negative electrode is quickened; Described negative electrode, described grid and described anode are contained in the vacuum space and have at least one shell of the display part with light transmission, and described shell is cylindric; Be formed on the inner surface of display part of described shell and be used for fluorescence coating luminous when the electron bombard of quickening by described anode; With by the manufacturing of X ray shielding material and be supported on described housing exterior so that by the cover of gap around the display part of described shell, described gap is formed between described shell and the described cover, described cover has light exit surface, the light that sends from described fluorescence coating is from the display part outgoing of this light exit surface by described shell, wherein, described display also comprises the cooling fluid that is sealed in the gap, wherein, described cover has the columniform shape that the end is arranged, with the part the containment member of the termination of removing the opening that seals described cover on the described shell and the part between the described shell.
Description of drawings
Fig. 1 is the illustrative configurations sectional view of expression according to the vacuum fluorescent display of first embodiment of the invention;
Fig. 2 A and 2B are respectively front view and the plane graphs that expression is applied to cover shown in Figure 1 the example of three look displays;
Fig. 3 A is the cross-sectional perspective view of graphite post;
Fig. 3 B is the amplification front view of the carbon nano-tube (nanotube) of the graphite post shown in the pie graph 3A;
Fig. 3 C is the amplification front view of the carbon nano-tube termination shown in Fig. 3 B; With
Fig. 4 is the sectional view according to the light source tube of second embodiment of the invention.
Embodiment
Be described in detail with reference to the attached drawings the present invention.
Fig. 1 represents the vacuum fluorescent display according to first embodiment of the invention, and it is a kind of field emission type vacuum tube.With reference to figure 1, the inner space of shell 1 keeps vacuum.Shell 1 is made of cylindrical glass bulb 1-1, circular fluorescent screen board (display surface) 1-2 by the glass bulb 1-1 front surface side opening that is adhesively fixed and the circular glass stem stem (stem) by the glass bulb 1-1 rear surface opening that is adhesively fixed.The thickness of glass bulb 1-1 is 2mm.Screen plate 1-2 is made by the thick clear glass of the 4mm with light transmission.Shell 1, promptly the diameter of glass bulb 1-1 is about 3cm, and length is about 10cm.
Inner surface to screen plate 1-2 applies fluorescent material to form the phosphor screen 2 that is formed by fluorescence coating.In shell 1, ceramic substrate 3 is provided with near glass stem 1-3, and negative electrode 4 is installed on phosphor screen 2 sides of ceramic substrate 3.Negative electrode 4 constitutes by electrode 4-1 with a large amount of graphite post 4-2 that electroconductive binder is fixed to electrode 4-1.Each graphite post 4-2 is made by the condensate of carbon nano-tube, and it is the needle-like shape of a few μ m to several mm that graphite post 4-2 has length.Grid 5 with mesh part 5-1 is arranged between negative electrode 4 and the phosphor screen 2 to cover graphite post 4-2.Anode 6 is arranged between phosphor screen 2 and the grid 5, near phosphor screen 2.
U.S. Patent No. 6239547 (list of references 1) and Japan Patent by the applicant's application disclose the structure that No.2000-149765 (list of references 2) describes negative electrode 4 in detail.As shown in Figure 3A, the graphite post 4-2 that describes in the list of references 1 and 2 is made by the paradigmatic structure of almost pointing to unidirectional carbon nano-tube 4-2a.Shown in Fig. 3 B, each carbon nano-tube 4-2a is by graphitization fully and be cylindrical, and has the length of the diameter and the 1 μ m order of magnitude of about 4nm to 50nm.Fig. 3 C amplifies the termination of having represented carbon nano-tube 4-2a.
When producing direct current (DC) arc discharge in the helium between two carbon electrodes of about 1mm to 2mm that is being separated from each other, the carbon of evaporation and coalescent anode is so that form deposit in the termination of the cathode side carbon electrode that forms carbon nano-tube 4-2a.In other words, when the gap that is maintained at about 1mm between by carbon electrode keeps stable arc discharge in helium, the column deposit that becomes the carbon electrode with anode almost to have same diameter at the cathode terminal capitiform.
The column deposit is by two zones, and promptly Wai Mian duricrust and the inner black core of fragility constitute.Inner core is made of the graphite post that has at the fibr tissue of the longitudinal extension of deposit post.When cutting the deposit post, can obtain graphite post 4-2.The duricrust of outside is made by the graphite polycrystal.
In graphite post 4-2, carbon millimicro polyhedron and a plurality of carbon nano-tube form condensate.Carbon nano-tube is divided into the carbon nano-tube of structure of single graphite linings and cylindric sealing for forming the superpose carbon nano-tube of coaxial multi-layer structure of a plurality of graphite linings of Collapsible structure with cylindric sealing.The middle body of every kind of structure is a hollow.
When by terminal pin 7-1 and 7-2 when negative electrode 4 and grid 5 apply voltage, high electric field focuses on the termination of the carbon nano-tube 4-2a of the graphite post 4-2 that is fixed on the electrode 4-1.Thereby launch from the termination extraction electronics of carbon nano-tube 4-2a and from mesh part 5-1.
Apply the voltage higher than the current potential of grid 5 by terminal pin 7-3 anode 6, compare with grid 5, anode 6 more close phosphor screens 2 are provided with.6 pairs of electronics from negative electrode 4 that send from mesh part 5-1 of anode quicken and impact fluorescence screen 2.Therefore, by the fluorescent material of electronic impact excitation formation phosphor screen 2, phosphor screen 2 is with the colour light emitting corresponding with the excited fluorescence powder.The light transmission screen plate 1-2 that sends by phosphor screen 2.
The bottom cylindrical cover of being made by lead glass 9 is connected to the front side of shell 1 by gap 8, to surround screen plate 1-2.Specifically, nearly 1/3 the regional quilt cover 9 that comprises screen plate 1-2 and the glass bulb 1-1 that is connected with screen plate 1-2 covers.The thickness of cover 9 is 3mm.Light emission parts 9-1 as cover 9 bottom has smooth inner surface and outer surface (light exit surface).Send and see through of the light exit surface ejaculation of the light of screen plate 1-2 from light emission parts 9-1 from phosphor screen 2.The light film 10 that increases the colour purity of emergent light pastes the light exit surface of light emission parts 9-1.
Between light emission parts 9-1 and screen plate 1-2, form clearance G 1, formation clearance G 2 between the outer surface of the inner surface of the cylindrical part 9-2 of cover 9 and glass bulb 1-1.Gap 8 is made of clearance G 1 and G2.Transparent cooling fluid 12 such as water is sealed in the gap 8.By with silicon adhesive 11 with the part between the outer surface of the inner surface of the cylindrical part 9-2 of annular shape seal bootr 9 and glass bulb 1-1, so that cooling fluid 12 is sealed in the gap 8.Clearance G 1 and G2 respectively have the width of 2mm.
From the light transmission screen plate 1-2 of phosphor screen 2 emission, and shine the outside,, arrive light film 10 to the light emission parts 9-1 of cover 9 by gap 8 (cooling fluid 12).Cooling fluid 12 in the gap 8 absorbs the heat of phosphor screen 2.Therefore, prevented that the temperature of phosphor screen 2 from sharply raising, and can obtain the light of high brightness by the voltage that raising is applied to anode 6.When reducing the thickness of screen plate 1-2, can further strengthen the cooling effect of phosphor screen 2.
The display of this embodiment and the field emission type vacuum tube that does not cover 9 routine relatively.According to this embodiment, when brightness is higher, because of the temperature of phosphor screen 2 raise the brightness reduced rate that causes be conventional field emission type vacuum tube the brightness reduced rate 1/10.Because with the 12 cooling phosphor screens 2 of the cooling fluid in the gap 8, prevented to raise and cause the blackout phenomenon of the cover of making by lead glass 9 because of covering 9 temperature.Owing to also prevented the heat ageing of light film 10, can obtain to have the high brightness of high color purity, stable light emission.
The X ray that phosphor screen 2 produces sees through gap 8 (cooling fluid 2) and is tending towards being leaked to the outside by covering 9 light emission parts 9-1.Because cover 9 is made by lead glass, covers 9 maskable X ray.The cylindrical part 9-2 of cover 9 also shields the X ray that is tending towards from glass bulb 1-1 leakage.Therefore, it is very little to be leaked to the total amount of X ray of outside.
As mentioned above, according to this embodiment, the front surface by the cover of being made by lead glass 9 being applied to shell 1 and in the gap between cover 9 and the shell 1 simple structure of sealing cooling fluid 12 can realize preventing fluoroscopic X ray leakage and overheated.The result is to have improved the voltage that will be applied to anode 6, so that can obtain high-luminance light.
The amount of the cooling fluid 12 of sealing in the gap 8 is determined in the thermal expansion of consideration cooling fluid 12.Can pass through the volume in the size free adjustment gap 8 of change clearance G 1 and G2.Specifically, can freely set the amount of cooling fluid 12 and the volume in gap 8.Absorb pressure in the gap 8 that the thermal expansion because of cooling fluid 12 increases by the soft silicon adhesive 11 of seal clearance 8.In the position of silicon adhesive 11, available fluorescence rubber sealing.
Though be that cooling fluid 12 is sealed in the gap 8 among the top embodiment, always do not need cooling fluid 12 sealings.When blow-by cooling fluid 12, the gap 8 between screen plate 1-2 by shell 1 and the cover 9 is from covering 9 heats that distribute phosphor screen 2.In this case, not water but overheated to realize preventing with air cooling phosphor screen 2.At this moment, needn't gap 8 be sealed fully with silicon adhesive 11, therefore, gap 8 and outside intercommunication mutually.
In the above embodiments, cover 9 is made by lead glass.Yet, the invention is not restricted to this, can be with any X ray shielding material manufacturing cover 9.Cooling fluid 12 is not limited to water.For example, can adopt the liquid mixture of ethylene glycol and diethylene glycol (DEG).Negative electrode 4 is the electrodes that adopt carbon nano-tube.Yet negative electrode 4 is not limited to use the electrode of carbon nano-tube.
In the above embodiments, the present invention is applied to send a kind of display of light of colour.As an alternative, the present invention also can be applicable to send the display of the light of three kinds of colours.Fig. 2 A and 2B have schematically shown the situation that the present invention is applied to the display of three kinds of colours.In Fig. 2 A, with the shell 1a of three kinds of colored corresponding three vacuum fluorescent displays, the public cover 9 ' of formation on the front side of 1b and 1c.
Specifically, be not respectively shell 1a, 1b and 1c provide cover 9, but cover a 9 ' covering shell 1a, the screen plate 1a-2 of 1b and 1c, 1b-2, and 1c-2.Light film 10 ' is adhered to the light exit surface of cover 9 '.The cover of being made by lead glass 9 ' is box form and has the light exit surface of rectangle.Utilize silicon adhesive that cooling fluid is sealed in cover 9 ' and shell 1a, 1b, and in the gap between the 1c.
With reference to figure 4 second embodiment of the present invention is described.
For the shadow shield structure, when applying high voltage, occur spark sometimes and make stable exciting operation to become to be difficult to carry out.Because the shielded lead pin when applying high voltage, discharge do not occur sometimes between the terminal pin.In addition, for example,, be difficult to carry out high pressure and excite because display does not shield with external electrical field.Light source tube (light source tube) according to second embodiment has the electron source that is made of carbon nano-tube or carbon millimicro fiber, and is provided with X ray shielding body and cooling structure.
The X ray shielding body is made of cover 19, and cover 19 has in the opening that covers the cylindrical X ray baffle plate 19-1 that completely cuts off electrode shell 1 partly and made and be assemblied in X ray baffle plate 19-1 by lead glass so that the front surface glass member 19-2 corresponding with the light exit surface of light source tube.As an alternative, X ray baffle plate 19-1 is by lead glass, or makes without any the X ray shielding material of light transmission.Cover 19 is set so that form gap 8 with shell 1.
Cooling body is by the cooling fluid 12 of sealing in gap 8 that forms between shell 1 and the cover 19 and the gap 8, and for example oil constitutes.By this configuration, available cooling fluid 12 covers the overall optical source capsule.
Therefore, light source tube and external electrical field shielding.Even apply high voltage, light source tube can be carried out stable electron-beam excitation operation.Also but anode applies the high pressure of 30kV to 40kV, and the front surface (phosphor screen) of cooling light source tube, so that can obtain higher brightness.
The containment member of being made by the insulating material such as silicon rubber (stem stem) 13 seals cooling fluids 12.The external diameter of containment member 13 is slightly larger than the external diameter of shell 1.When with electrically insulating silicone rubber sealing cooling fluid 12, light source tube and cover 19 can be interfixed, and the profile of the cover 19 (shield glass pipe) of the shell 1 that covers light source tube is not had adverse effect, in the shell 1 that cooling fluid 12 can be sealed in light source tube and the gap of covering between 19.
Various terminal pin 7-1 to 7-3 imbed and are fixed in the containment member 13.When by this way with embedding of insulated enclosure member and fixing various terminal pin 7-1 to 7-3, even under condition of high voltage, can prevent to discharge between terminal pin 7-1 to 7-3, and leading wire stabilization ground is extended.
In addition, can in containment member 13, form liquid memory 14 with gap 8 intercommunications.Can absorb the change in volume that the thermal expansion because of cooling fluid 12 causes like this.When forming liquid memory 14 in containment member 13, containment member 13 preferably has elasticity.
In this embodiment, the front surface glass member 19-2 that constitutes the X ray shielding construction is not limited to smooth glass component, but can form convex-concave surface.Can set the distance between the front surface glass member 19-2 of X ray shielding construction and the front surface glass member of light source tube (screen plate 1-2) arbitrarily.
As mentioned above,, have light transmission and can be arranged on housing exterior with around display surface, form the gap with shell simultaneously by the cover that the X ray shielding material is made according to the present invention.Therefore, utilize simple structure can realize preventing fluoroscopic X ray leakage and overheated.Simultaneously, the voltage that is applied to anode by raising can obtain the light of high brightness.
Because cooling fluid is sealed in the gap, can strengthen the effect that prevents that phosphor screen is overheated.Owing to make cover by lead glass, can strengthen the effect that prevents that X ray from revealing.
Claims (6)
1. vacuum fluorescent display comprises:
The negative electrode of emitting electrons (4);
Extract the grid (5) of electronics from described negative electrode;
The anode (6) that the electronics that extracts from described negative electrode is quickened;
Described negative electrode, described grid and described anode are contained in the vacuum space and have at least one shell (1) of the display part (1-2) with light transmission, and described shell is cylindric;
Be formed on the inner surface of display part of described shell and be used for fluorescence coating (2) luminous when the electron bombard of quickening by described anode; With
By the manufacturing of X ray shielding material and be supported on described housing exterior so that by the cover (19) of gap (8) around the display part of described shell, described gap is formed between described shell and the described cover, described cover has light exit surface, the light that sends from described fluorescence coating is from the display part outgoing of this light exit surface by described shell
Wherein, described display also comprises the cooling fluid (12) that is sealed in the gap,
It is characterized in that described cover has the columniform shape that the end is arranged, with the part the containment member (13) of the termination of removing the opening that seals described cover on the described shell and the part between the described shell.
2. display according to claim 1 is characterized in that described cover comprises:
The cylindrical part of making by the X ray shielding material (19-1) and
Make and be assemblied in the front surface glass member (19-2) in the opening of the described cylindrical part corresponding with the display part of described shell by lead glass.
3. display according to claim 2 is characterized in that
The a plurality of terminal pins that are connected to described shell of embedding in the described containment member, the external diameter of containment member is greater than the external diameter of described shell.
4. display according to claim 3, it is characterized in that described containment member by the insulation elastomeric material make.
5. display according to claim 3 is characterized in that further comprising:
Be formed in the containment member liquid memory (14) with the gap intercommunication.
6. display according to claim 1 is characterized in that
Described shell comprise a plurality of shells corresponding with multiple color and
Described cover is enclosed in the display part of these a plurality of shells together.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000252315 | 2000-08-23 | ||
| JP252315/2000 | 2000-08-23 | ||
| JP170229/2001 | 2001-06-05 | ||
| JP2001170229A JP2002141007A (en) | 2000-08-23 | 2001-06-05 | Fluorescent display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1339814A CN1339814A (en) | 2002-03-13 |
| CN1180455C true CN1180455C (en) | 2004-12-15 |
Family
ID=26598299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01124268XA Expired - Fee Related CN1180455C (en) | 2000-08-23 | 2001-08-23 | Vacuum fluorescent display |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2002141007A (en) |
| KR (1) | KR100428068B1 (en) |
| CN (1) | CN1180455C (en) |
| TW (1) | TW507242B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100579485B1 (en) * | 2005-09-14 | 2006-05-16 | 금호이엔씨 주식회사 | Dam for controlling water level |
| CN101118831A (en) | 2006-08-02 | 2008-02-06 | 清华大学 | Triple-pole type field transmitting pixel pipe |
| CN101441969B (en) * | 2007-11-23 | 2010-07-28 | 清华大学 | Field emission pixel tube |
| JP5778464B2 (en) * | 2011-04-20 | 2015-09-16 | 株式会社 エイブイシー | Reflection high speed electron diffraction method |
| JP5778465B2 (en) * | 2011-04-20 | 2015-09-16 | 株式会社 エイブイシー | Reflection high-speed electron diffraction device |
| CN106683963A (en) * | 2016-12-19 | 2017-05-17 | 中国科学院深圳先进技术研究院 | Transmission type X-ray source structure of patterned carbon nano-tube cathode |
| CN108682600B (en) * | 2018-07-16 | 2024-05-14 | 中国原子能科学研究院 | Ion source with anti-sparking device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62157657A (en) * | 1985-12-28 | 1987-07-13 | Toshiba Electric Equip Corp | Fluorescent lamp for display |
| JPH04273286A (en) * | 1991-02-28 | 1992-09-29 | Toshiba Lighting & Technol Corp | Display element and display device |
| JP3426340B2 (en) * | 1994-05-30 | 2003-07-14 | ノリタケ伊勢電子株式会社 | Display tube for light source and method of manufacturing the same |
| JPH11167886A (en) * | 1997-09-30 | 1999-06-22 | Ise Electronics Corp | Fluorescent character display device |
| JPH11111161A (en) * | 1997-10-02 | 1999-04-23 | Ise Electronics Corp | Manufacture of fluorescent character display device |
| JP3655447B2 (en) * | 1997-10-29 | 2005-06-02 | 株式会社ノリタケカンパニーリミテド | Fluorescent display device and manufacturing method thereof |
| JPH11162333A (en) * | 1997-12-01 | 1999-06-18 | Ise Electronics Corp | Manufacture of fluorescent character display device |
| JP3790044B2 (en) * | 1998-05-12 | 2006-06-28 | 株式会社ノリタケカンパニーリミテド | Fluorescent display device |
| JP2000149765A (en) * | 1998-11-13 | 2000-05-30 | Ise Electronics Corp | Fluorescent display device |
-
2001
- 2001-06-05 JP JP2001170229A patent/JP2002141007A/en active Pending
- 2001-08-20 TW TW090120372A patent/TW507242B/en not_active IP Right Cessation
- 2001-08-20 KR KR10-2001-0049955A patent/KR100428068B1/en not_active IP Right Cessation
- 2001-08-23 CN CNB01124268XA patent/CN1180455C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020015949A (en) | 2002-03-02 |
| KR100428068B1 (en) | 2004-04-30 |
| CN1339814A (en) | 2002-03-13 |
| JP2002141007A (en) | 2002-05-17 |
| TW507242B (en) | 2002-10-21 |
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Owner name: NONE Free format text: FORMER OWNER: NOLITUCKER CO., LTD. Effective date: 20030929 Owner name: NOLITUCKER CO., LTD. Free format text: FORMER OWNER: NORITAKE ISE ELECTRONICS CO., LTD. |
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Effective date of registration: 20030929 Address after: Japan's Aichi Applicant after: Noritake Co., Ltd. Address before: Mie, Japan Applicant before: Noritake Ise Electronics Co., Ltd. Co-applicant before: Noritake Co., Ltd. |
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Granted publication date: 20041215 Termination date: 20120823 |