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1. 发明专利

JPH11204067A FIELD EMISSION DEVICE 失效
公开(公告)号：JPH11204067A
公开(公告)日：1999-07-30
申请号：JP777898
申请日：1998-01-19
申请人： FUTABA DENSHI KOGYO KK
发明人： TONEGAWA TAKESHI , UCHIDA YUJI , KOGURE YUICHI , TANAKA GENTARO
IPC分类号： H01J9/39 , H01J29/94 , H01J31/12
摘要： PROBLEM TO BE SOLVED: To improve remaining gas absorption by enlarging the surface area of a getter mirror formed in a getter box. SOLUTION: A granular layer 10 is formed on the wall face inside a getter box 4 for keeping the inside between a glass substrate 2 in the anode side and a glass substrate 3 in the cathode side in vacuum state and a getter mirror 11 is formed on the surface of the granular layer 10. Moreover, a recessed part 24 of an electrically conductive getter 21 containing a getter material is positioned at a relatively upper position in the longitudinal direction of the getter box 4 and the inside of the getter box 4 is filled with nitrogen gas (N2), so that the getter material is so evaporated as to get into every corner of the surface of the granular layer 10 and a getter mirror 11 with a larger surface area can be formed.

2. 发明专利

JPH1186760A DISPLAY DEVICE WITH GETTER CHAMBER 失效
公开(公告)号：JPH1186760A
公开(公告)日：1999-03-30
申请号：JP23845997
申请日：1997-09-03
申请人： FUTABA DENSHI KOGYO KK
发明人： TONEGAWA TAKESHI , TANAKA GENTARO , TAKAGI NAOYA , KOGURE YUICHI
IPC分类号： H01J29/94 , H01J31/12
摘要： PROBLEM TO BE SOLVED: To provide a display device with a getter chamber having a hydrophobic property and good getttering action. SOLUTION: An envelope 2 is formed by a cathode substrate 3, provided with an electron emission means 6 which emits electrons and an anode substrate 4 opposite to the cathode substrate 3 having a display part 7. A getter chamber 8 formed by glass-made substrates 9, 10 is made to be communicated with the envelope 2. By coating the inner surface of the glass-made substrates 9, 10 with a hydrophobic insulating film 14, a hydrophobicity is provided. Accordingly, since adsorption of water in a bottom surface plate 9 is prevented, no oxide layer is formed, and a getter mirror 15 becomes a thick film. Even at drive times, the inner surface of the side surface plate 10 not covered by the getter mirror 15 is coated with the full surface hydrophobic insulating film 14, so as to prevent the adsorption of water in the side surface plate 10.

3. 发明专利

JPH1179765A PRODUCTION OF GLASS CONTAINER AND APPARATUS FOR PRODUCTION 失效
公开(公告)号：JPH1179765A
公开(公告)日：1999-03-23
申请号：JP23846097
申请日：1997-09-03
申请人： FUTABA DENSHI KOGYO KK
发明人： TANAKA GENTARO , TONEGAWA TAKESHI , KOGURE YUICHI , TAKAGI NAOYA
IPC分类号： C03B11/10 , C03B23/03
摘要： PROBLEM TO BE SOLVED: To decrease man-hours for work and to shorten working time by executing press forming by metal molds in the state of uniformly heating and softening a glass substrate. SOLUTION: A punch 1 having a projecting part 1a of approximately the same size and shape as those of the internal hollow part of a glass container as a finished product having a frame at its outer marginal part and a die 2 which has a cavity 2a of approximately the same size and shape as size and shape of the glass container and is arranged to face the punch 1 are used. The glass substrate 5 as a work is supported in the state of floating the glass substrate to the prescribed extent from the die 2 by supporting pins 16 of a substrate supporting mechanism. The glass substrate 5 is then heated to a softening temp. or above by a gas burner 19. The punch 1 maintained at a prescribed temp. is lowered toward the die 2 and the glass substrate 5 is pressed into the cavity 2a of the die 2 by the projecting part 1a of the punch 1, by which the glass container is formed.

4. 发明专利

JP2000268707A FIELD EMISSION ELEMENT AND ITS MANUFACTURE 失效
公开(公告)号：JP2000268707A
公开(公告)日：2000-09-29
申请号：JP7398599
申请日：1999-03-18
申请人： FUTABA DENSHI KOGYO KK
发明人： ITO SHIGEO , YAMAURA TATSUO , TANAKA GENTARO
IPC分类号： H01J9/02 , H01J1/304 , H01J29/04 , H01J31/12
摘要： PROBLEM TO BE SOLVED: To provide a field emission element which can be mass-produced with a high yield. SOLUTION: An anode 7 composed of an anode conductor 5 and a phosphor layer 6 is provided inside an anode substrate 4 of an envelope 2. This field emission element 8 is formed inside a cathode substrate 3. The field emission element 8 has a conductive electrode 9, a rugged layer 10, an emission layer 11, and a gate electrode 12. The rugged layer 10 is composed of conductive particles, resistive particles, insulation particles and the like. The emission layer 11 is composed of a carbon nanotube and the like. The electric field produced by the gate electrode 12 is concentrated at the edges of the rugged layer 10 covered with the emission layer 11, and then field electrons are emitted from the emission layer 11. The electrons pass through the gate electrode 12 so as to collide with the phosphor layer 6 of the anode 7, resulting in light emission from the phosphor layer 6.

5. 发明专利

JPH10199453A ELECTRON SOURCE INTEGRATED VACUUM AIRTIGHT VESSEL AND ACTIVATING METHOD OF GETTER 失效
公开(公告)号：JPH10199453A
公开(公告)日：1998-07-31
申请号：JP1183897
申请日：1997-01-08
申请人： FUTABA DENSHI KOGYO KK
发明人： TONEGAWA TAKESHI , TANAKA GENTARO , KOGURE YUICHI
IPC分类号： H01J29/94 , H01J7/18 , H01J31/12
摘要： PROBLEM TO BE SOLVED: To provide an electron source enclosing vacuum airtight vessel by which a thickness of a getter box to house a getter whose inside can be held in a high vacuum can be thinned. SOLUTION: A getter box lengthwise in the illustrated vertical direction is arranged so as to project further leftward from the left end of a cathode base board 1. This getter box is formed by being surrounded by a bottom plate 3b and a side plate 3a. A nonevaporating getter 11 is housed on the under surface side of the cathode base board 1. The nonevaporating getter 11 has in the center a resistance heating body 11b such as a nichrome wire heated by current conduction, and an almost columnar and long nonevaporating getter body part 11a is formed by sintering power composed of Zr-Al alloy on its periphery.

6. 发明专利

JP2001043792A MANUFACTURE OF ELECTRON EMITTING SOURCE, ELECTRON EMITTING SOURCE, AND FLUORESCENT LIGHT EMITTING TYPE DISPLAY 失效
公开(公告)号：JP2001043792A
公开(公告)日：2001-02-16
申请号：JP24915199
申请日：1999-07-30
申请人： FUTABA DENSHI KOGYO KK
发明人： ITO SHIGEO , YAMAURA TATSUO , TANAKA GENTARO , TAKANASHI HIROKAZU , TANABE YASUO
IPC分类号： H01J9/02 , H01J1/304 , H01J29/04 , H01J31/12
摘要： PROBLEM TO BE SOLVED: To reduce price, and allow efficient electron emission with low voltage drive by using carbon material having at least one of carbon nano-tube, Fullerence, nano-particles, nano-capsule, and carbon nano-horn. SOLUTION: An insulating substrate 101, a cathode conductor 102, and a paste-like carbon layer containing carbon nano-tube are laminated, then dried, and burned. By ribbing the carbon layer with a blade, emitters 301 where the carbon nano-tube is exposed from the wall portions 302 of the ribs are formed. Thereafter, by forming rib-like gate electrodes 404 an electron releasing source is completed.

7. 发明专利

JP2001035360A MANUFACTURE OF ELECTRON EMITTING SOURCE, THE ELECTRON EMITTING SOURCE AND FLUORESCENT EMISSION TYPE DISPLAY 失效
公开(公告)号：JP2001035360A
公开(公告)日：2001-02-09
申请号：JP20246299
申请日：1999-07-16
申请人： FUTABA DENSHI KOGYO KK
发明人： YAMAURA TATSUO , ITO SHIGEO , TANAKA GENTARO , TAKANASHI HIROKAZU , TANABE YASUO , TSUBOI TOSHIYUKI , NAWAMAKI KENJI
IPC分类号： H01J9/02 , H01J1/304 , H01J29/04 , H01J31/12
摘要： PROBLEM TO BE SOLVED: To efficiently emit electrons with low-voltage drive by using a carbon material, having at least one of carbon nanotube, fullerene, nanoparticle, nanocapsule and carbon nanohorn. SOLUTION: A cathode conductor 102 and a paste-like carbon layer 201, including carbon nanotube, are laminated on an insulating substrate 1. A paper 301 is adhered to the carbon layer 210 and dried, so as to have the carbon layer 201 and the paper 301 unified. After peeling the surface part of the carbon layer 201 and the paper 301 from the carbon layer 201, the carbon layer 201 is burned to form an emitter. Thereafter, a gate electrode is formed so as to complete an electron emitting source.

8. 发明专利

JPH11283492A VACUUM PERIPHERAL VESSEL AND METHOD FOR FORMING A VACUUM THEREIN 失效
公开(公告)号：JPH11283492A
公开(公告)日：1999-10-15
申请号：JP8112498
申请日：1998-03-27
申请人： FUTABA DENSHI KOGYO KK
发明人： ITO SHIGEO , TANAKA GENTARO , YOKOYAMA MIKIO , TONEGAWA TAKESHI
IPC分类号： H01J5/02 , H01J9/385 , H01J9/39 , H01J29/86 , H01J29/94 , H01J31/12
摘要： PROBLEM TO BE SOLVED: To improve the degree of vacuum of a field emission device by baking effectively the interior of a vacuum peripheral vessel to drive out remaining gases before forming a vacuum therein. SOLUTION: In this vacuum vessel comprising a cathode side substrate 2 on which a field emission element is formed and anode side substrates 1 which are arranged with a prescribed spacing, the vacuum forming method comprises the steps of: providing at least two or more opening parts on the vacuum peripheral vessel before sealing it, baking and driving out remaining gases by flowing through a high-temperature gas in the vessel in a process prior to a process of forming a vacuum in the vessel, and then sealing the opening(s) except one opening and at the same time forming vacuum in the vessel using the remaining opening.

9. 发明专利

JPH10177851A VACUUM CONTAINER 失效
公开(公告)号：JPH10177851A
公开(公告)日：1998-06-30
申请号：JP33841796
申请日：1996-12-18
申请人： FUTABA DENSHI KOGYO KK
发明人： KISHINO TAKAO , TANAKA GENTARO , ITO SHIGEO , TONEGAWA TAKESHI
IPC分类号： H01J29/86 , H01J5/02 , H01J7/18 , H01J9/385 , H01J29/94 , H01J31/12
摘要： PROBLEM TO BE SOLVED: To arrange a getter member without thickening the total height of an envelope. SOLUTION: An anode substrate 1 in which an anode electrode serving as a display part is formed and a cathode substrate 2 in which a field emission element is formed are faced, and the outer circumferences of the substrates 1, 2 are sealed to constitute an envelope 4. A through hole 14 communicating with the inside of the envelope is formed in the cathode substrate 2. A getter member 15 is housed in the through hole 14. An exhaust pipe 16 for exhausting the envelope 4 is arranged on the outer wall surface of the cathode substrate 2 in which the through hole 14 is positioned.

10. 发明专利

JPH09129161A GETTER SUPPORT TOOL 失效
公开(公告)号：JPH09129161A
公开(公告)日：1997-05-16
申请号：JP28345195
申请日：1995-10-31
申请人： FUTABA DENSHI KOGYO KK
发明人： TONEGAWA TAKESHI , KADOWAKI AKIRA , TANAKA GENTARO , ITO SHIGEO , KOGURE YUICHI
IPC分类号： H01J7/18 , H01J29/94 , H01J31/12 , H01J31/15
摘要： PROBLEM TO BE SOLVED: To provide a support tool holding a getter in a vacuum container and having a simple structure. SOLUTION: This getter support tool 30 is provided with a hold section 32 pinching a getter 1 from above and below, the first support leg 34 protruded toward the lower face of the getter 1 integrally with the hold section 32, and the second support leg 35 having a spring property and faced to the upper face of the getter 1 integrally with the hold section 32. The hold section 32 of the getter support tool 30 holds the getter 1 from the outside. The getter 1 fitted to the getter support tool 30 is stored in the getter chamber 20 of a display tube 10. The upper face of the getter 1 emitting a getter material 3 is faced to the outer face of the second substrate 13, and a getter film is formed on the outer face of the second substrate 13. The getter support tool 30 is pressed by the elasticity of the second support leg 35 and fixed. The warp of the second support leg 35 is changed in response to the contact state with the second substrate 13 of an envelope 11. The distance between the upper face of the getter 1 and the second substrate 13 of the envelope 11 is made constant, and the interval between the getter 1 and the second substrate 13 is kept at the desired value.

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