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31. 发明专利

JP2832510B2 失效
公开(公告)号：JP2832510B2
公开(公告)日：1998-12-09
申请号：JP11967594
申请日：1994-05-10
申请人： FUTABA DENSHI KOGYO KK
发明人： ITO SHIGEO , YOKOYAMA MIKIO , TONEGAWA TAKESHI , UCHIDA JUJI , WATANABE TERUO
IPC分类号： H01J9/385 , H01J9/38 , H01J9/39 , H01J9/44

32. 发明专利

JP2759803B2 失效
公开(公告)号：JP2759803B2
公开(公告)日：1998-05-28
申请号：JP23117688
申请日：1988-09-14
申请人： FUTABA DENSHI KOGYO KK
发明人： ITO SHIGEO , TONEGAWA TAKESHI , NIIYAMA TAKEHIRO
IPC分类号： H01J31/15

33. 发明专利

JP2754461B2 失效
公开(公告)号：JP2754461B2
公开(公告)日：1998-05-20
申请号：JP17970194
申请日：1994-07-08
申请人： FUTABA DENSHI KOGYO KK
发明人： KADOWAKI AKIRA , ITO SHIGEO , KOGURE JUICHI , TONEGAWA TAKESHI
IPC分类号： C03B23/203 , H01J9/26 , H01J9/24 , H01J29/86

34. 发明专利

JPH09320452A ELECTRIC FIELD EMITTING ELEMENT 失效
公开(公告)号：JPH09320452A
公开(公告)日：1997-12-12
申请号：JP15634596
申请日：1996-05-29
申请人： FUTABA DENSHI KOGYO KK
发明人： OGAWA YUKIO , TONEGAWA TAKESHI , OTSU KAZUYOSHI , KOMATA KENICHI , KUDO MIWAKO
IPC分类号： H01J1/30 , H01J1/304
摘要： PROBLEM TO BE SOLVED: To remove all causes of insulation failure. SOLUTION: A metallic thin film 7 formed over a resistance layer 3 is so patterned in a dod shape as to allow an emitter corn 6 to be formed over the metallic thin film 7. This constitution thereby prevents the resistance layer 3 from being exposed to a plurality of opening parts 11 formed in a gate electrode 5 and an insulating layer 4. Therefore, reactions are thereby prevented between material used for the emitter corn 6 and the material of the resistance layer 3, and concurrently, the resistance layer 3 is prevented from being etched when opening parts 11 are formed.

35. 发明专利

JPH0969347A VACUUM AIRTIGHT CONTAINER 失效
公开(公告)号：JPH0969347A
公开(公告)日：1997-03-11
申请号：JP24512395
申请日：1995-08-31
申请人： FUTABA DENSHI KOGYO KK
发明人： ITO SHIGEO , TONEGAWA TAKESHI , YOKOYAMA MIKIO , UCHIDA YUJI
IPC分类号： G01L21/30 , H01J9/42 , H01J31/12
摘要： PROBLEM TO BE SOLVED: To accurately monitor the degree of vacuum in a vacuum airtight container. SOLUTION: An ionizing electron emitting part 112 constituted of an field emission array is formed on a cathode base plate 101, an anode electrode 106, an electron accelerating electrode 110 and an ion collector electrode 111 are formed on an anode base plate 108 so arranged as to face the cathode base plate 101, and an electrons emitted from the ionizing electron emitting part 112 collide with remaining gas in a container, so as to generate ions. The amount of ions is proportional to the concentration of the remaining gas, and positive ions of generated ions are drawn by the ion collector electrode 111 to which the specified negative electric potential is applied. Accordingly, the concentration of the remaining gas in the container, namely, the degree of vacuum is measured by measuring the current to flow to the ion collector electrode 111.

36. 发明专利

JPH0822767A VESSEL SEALING METHOD AND SEALING DEVICE 失效
公开(公告)号：JPH0822767A
公开(公告)日：1996-01-23
申请号：JP17970194
申请日：1994-07-08
申请人： FUTABA DENSHI KOGYO KK
发明人： KADOWAKI AKIRA , ITO SHIGEO , KOGURE YUICHI , TONEGAWA TAKESHI
IPC分类号： C03B23/203 , H01J9/26 , H01J9/24 , H01J29/86
摘要： PURPOSE:To provide a vessel sealing method by which a vessel can be sealed without dislocating a relative position between an anode board and a cathode board. CONSTITUTION:Sealing glass 4 is arranged in a peripheral edge part of one board 1 (2) of glass, and the other board 2 (1) is placed from above it. A relative position between a cathode board 2 and an anode board l is positioned, and a laser beam 12 is irradiated to the sealing glass 4 from above the anode board 1, and is locally melted, and the cathode board 2 and the anode board 1 are temporarily fastened together. A glass vessel 30 composed of these temporarily fastened cathode board 2 and anode board 1 is carried in a sealing furnace, and the cathode board 2 and the anode board 1 are sealed.

37. 发明专利

JPH07262929A DISPLAY TUBE MANUFACTURING APPARATUS 失效
公开(公告)号：JPH07262929A
公开(公告)日：1995-10-13
申请号：JP7788094
申请日：1994-03-25
申请人： FUTABA DENSHI KOGYO KK
发明人： ITO SHIGEO , KADOWAKI AKIRA , TONEGAWA TAKESHI , YOKOYAMA MIKIO
IPC分类号： H01J9/26 , H01J9/385 , H01J9/40 , H01J9/46
摘要： PURPOSE:To provide a display tube manufacturing apparatus by which the inside of a housing can be evacuated to be highly vacuum without evacuating the entire room to be highly vacuum and display tubes are manufactured in an integrated process. CONSTITUTION:An oxide solder is melted in half-vacuum atmosphere and sealing is carried out in a sealing chamber 3. A housing cooled gradually is transferred to a transferring apparatus chamber 4 by a transporting apparatus while a gate valve 3-4 being opened. In the transferring apparatus chamber 4, the housing is set from a tray to gas discharging trolley 71 - gas discharging trolley 7n installed in a trolley type second gas discharging chamber 6 in an inert gas atmosphere. The trolley type second gas discharging chamber is formed to be a circular or oval long line and a gas discharging trolley evacuates only the housing to highly vacuum condition while moving on a rail and after gas discharge, sealing is carried out.

38. 发明专利

JPS6243044A FLUORESCENT CHARACTER DISPLAY TUBE 失效
公开(公告)号：JPS6243044A
公开(公告)日：1987-02-25
申请号：JP18359585
申请日：1985-08-20
申请人： FUTABA DENSHI KOGYO KK
发明人： ITO SHIGEO , TAKANO SADAO , TONEGAWA TAKESHI , KAWATSU KUNIAKI
IPC分类号： H01J31/15 , H01J29/94
摘要： PURPOSE:To prevent any toxication of the cathode by making a sulfide gas to be adsorbed by an adsorption layer which contains a compound containing Li, Na or the like and which is installed inside the envelope of a fluorescent character display tube which includes a phosphor at least part of which consists of a sulfide phosphor. CONSTITUTION:A fluorescent character display tube is produced by installing an anodic part 6, which consists of a positive conductor 3 made of a transparent conductive film and a phosphor 5 which is fixed to the surface of the conductor 3 and at least part of which consists of a sulfide phosphor, on the inner surface of a base plate 1 and installing the anodic part 6, a control electrode 8 and a cathode 9 in an envelope 12. A getter 14 and a getter mirror 15 are also installed in the envelope 12. An adsorption layer 16 containing at least one compound containing Li, Na, K, Rb, Cs or Fr is formed on the inner surface of a back plate 11 so that a sulfide produced from the phosphor 5 is efficiently adsorbed by the layer 16. Due to the above structure, it is possible to achieve improved emission by preventing the cathode 9 from being toxicated with a sulfide gas.

39. 发明专利

JP2000340144A FIELD EMISSION TYPE DISPLAY DEVICE 失效
公开(公告)号：JP2000340144A
公开(公告)日：2000-12-08
申请号：JP15052499
申请日：1999-05-28
申请人： FUTABA DENSHI KOGYO KK
发明人： TONEGAWA TAKESHI , IIZUKA HIDETAKE , YOKOYAMA MIKIO , HIRATA YOSHIHIKO , SUGIMOTO YUKITOSHI
IPC分类号： H01J31/12 , H01J29/28 , H01J29/32
摘要： PROBLEM TO BE SOLVED: To prevent deterioration in the luminous efficiency of a phosphor by suppressing generation of oxidizing gases. SOLUTION: By previously forming a passivation film 3 between a hydrophilic anode electrode (ITO film) 2 coating an anode substrate 1 and a phosphor 5, electrons(e) emitted from a cathode collide with the passivation film 3 without colliding with the anode electrode (ITO film) 2 formed below the phosphor 5. The passivation film 3 is formed out of a substance adsorbing less water than the anode electrode (ITO film) 2, thereby suppressing generation of oxidizing gases to prevent deterioration in the luminous efficiency of the phosphor 5.

40. 发明专利

JP2000106101A FIELD EMISSION DISPLAY ELEMENT 失效
公开(公告)号：JP2000106101A
公开(公告)日：2000-04-11
申请号：JP27534898
申请日：1998-09-29
申请人： FUTABA DENSHI KOGYO KK
发明人： TOKI HITOSHI , TONEGAWA TAKESHI , KATAOKA FUMIAKI , ITO SHIGEO
IPC分类号： H01J29/86 , H01J29/20 , H01J29/28 , H01J31/12
摘要： PROBLEM TO BE SOLVED: To provide a field emission display element having superior reliability and satisfactory vacuum level in a vacuum container because of little gas discharge from a phosphor layer in a process for evacuating the vacuum container. SOLUTION: A field emission display element 1 has an outer enclosure 4, in which a cathode base 2 with a field emission cathode 5 formed on its inner surface faces an anode base 2 with a phosphor layer 15 on its surface with an designated interval. The phosphor layer emits light through excitation by impact of electrons emitted from the field emission cathode. The phosphor layer is convered by a carbon layer 12. The interval between the cathode base and the anode base is not more than 2 mm which causes an evacuation conductance problem. Thereby, the carbon layer absorbing residual gas containing moisture is prevented and the gas adheres to the phosphor body itself. As a result, the carbon layer absorbs gas already contained in a phosphor particle. Evacuation in an evacuating process in the manufacture of the field emission display element is facilitated, the vacuum level is improved, and reliability as a light emitting element is improved.

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