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1. 发明专利

JPH11339633A IMPREGNATED CATHODE AND MANUFACTURE THEREFOR AND ELECTRON GUN AND ELECTRONIC TUBE 失效
公开(公告)号：JPH11339633A
公开(公告)日：1999-12-10
申请号：JP30011498
申请日：1998-10-21
申请人： SONY CORP , CITIZEN WATCH CO LTD , SHIMEO SEIMITSU KK
发明人： HASEGAWA YOJI , OGAWA SHINJI , IMABAYASHI HIROTOMO , FURUKAWA MAKOTO , YOSHINO NOBUYUKI , SATO ATSUSHI , HIRAI YOSHIRO , OGASAWARA NAOTO , KOBAYASHI KUNIYASU
IPC分类号： B22F3/26 , B22F5/00 , H01J1/28 , H01J9/04
摘要： PROBLEM TO BE SOLVED: To provide a stable electron emitting characteristic by restraining emission of an unnecessary electron and a particle produced from an excessive electron emitting substance. SOLUTION: An impregnated cathode 1A is positioned just under an electron emitting hole of a first grid, and is composed of a porous sintered body 10 having the surface being an electron emitting area 10a and a porous sintered body 11 having the surface being a peripheral area except for the electron emitting area. Porosity of the porous sintered body 10 is set larger than that of the porous sintered body 11. An electron emitting substance 1a is impregnated not only into the porous sintered body 10 having the electron emitting area 10a but also into the porous sintered body 11 corresponding to the peripheral area of the electron emitting area 10a, and a quantity of the electron emitting substance 1a per unit volume impregnated into the porous sintered body 10 is increased more than that impregnated into the porous sintered body 11.

2. 发明专利

JP2001015009A ELECTRON EMITTING SOURCE AND ITS MANUFACTURE 失效
公开(公告)号：JP2001015009A
公开(公告)日：2001-01-19
申请号：JP18212499
申请日：1999-06-28
申请人： CITIZEN WATCH CO LTD , SONY CORP
发明人： IKEDA TOMOO , YAMAMOTO ETSUO , SHIRAI YOSHIMASA , HASHIMOTO HIDETAKE , HIRAI YOSHIRO , SAITO TSUNENARI , MUCHI TSUNEO
IPC分类号： H01J1/15 , H01J1/18 , H01J1/46 , H01J1/90 , H01J9/04 , H01J9/14
摘要： PROBLEM TO BE SOLVED: To provide a small, thin electron emitting source capable of stably emitting electrons with small power and to provide its manufacturing method. SOLUTION: This electron emitting source has a base 1, a heater formed on the base and generating heat by carrying a current to it, an electron emitting substance 3 formed on the heater, and a control electrode plate 4 provided with opening parts for passing electrons emitted from the electron emission substance 3 and arranged above the electron emitting substance. In this case, by applying a voltage to the control electrode plate 4 while heating the electron emitting substance 3 by the heater, the electrons are emitted from the electron emitting substance 3.

3. 发明专利

JPH03182031A ASSEMBLY OF ELECTRON GUN 失效
公开(公告)号：JPH03182031A
公开(公告)日：1991-08-08
申请号：JP31940289
申请日：1989-12-08
申请人： SONY CORP , CITIZEN WATCH CO LTD
发明人： AMANO YASUNOBU , ONO HIROSHI , HIRAI YOSHIRO , USHIKUBO CHUJI
IPC分类号： H01J9/18 , H01J29/48 , H01J29/50
摘要： PURPOSE:To highly accurately assemble an electron gun with soldering made with high position accuracy by heat-treating soldering with a first electrode and a common second electrode pressure-fixed with a given fixing jig with an insulation spacer nipped. CONSTITUTION:An insulation spacer 11 is provided in which a plating layer 14 is formed on both the surfaces of a ceramic spacer 13 having a transparent hole 12 at the middle, a MoMn metallized layer 15 is formed on the plating layer 14, and silver solder 10 is formed on the metallized layer 15. The spacer 11 is fixed by interposing a washer 20 (20a and 20b) between the inner surfaces of first electrodes G1r, G1g, and G1b and a second electrode G2 by passing an axis body (bolt) 24, in which a large diameter head part 22 to which a driver inserting hole 21 is formed is provided on one end and a screw part 23 is threaded on the other end, through the electrodes G1r, G1g, and G1b, and electron beam transparent holes h1r, h2r and h1g, h2g and G1b, and h2b to which G2 faces, and by threadedly engaging a nut 25 with the screw part 23 on the tip of the axis body 24. Then heat-treatment is made within a vacuum or hydrogen furnace and soldering is conducted to be integrated in an integrally fixed condition.

4. 发明专利

JP2000215800A MANUFACTURE OF IMPREGNATED TYPE CATHODE 失效
公开(公告)号：JP2000215800A
公开(公告)日：2000-08-04
申请号：JP1267999
申请日：1999-01-21
申请人： SONY CORP , CITIZEN WATCH CO LTD
发明人： HASEGAWA YOJI , IMABAYASHI HIROTOMO , YOSHINO NOBUYUKI , SATO ATSUSHI , HIRAI YOSHIRO , FUJII NAOKI , HIROE SEIICHI
IPC分类号： H01J1/28 , B23K26/00 , H01J9/04
摘要： PROBLEM TO BE SOLVED: To realize a manufacturing method of an impregnated type cathode capable of suppressing emission of unnecessary electrons, particles produced from excessive electron emissive material or the like, capable of obtaining a stable electron emission characteristic, and capable of aiming lengthening of life. SOLUTION: A porous sintered body 11 of an integrated structure, comprising tungsten powder and including an electron emission region 11a on the surface, is manufacture, and then a laser beam LB is applied on a region other than the region to become the electron emission region 11a of the porous sintered body 11, to thereby melt the porous sintered body 11 partially. Hereby, holes of the sintered body are crushed in the region whereon the laser beam LB is applied, and a non-porous face 11b is formed on the surface of the porous sintered body 11. Besides, emissive material 1a is impregnated in the porous sintered body 11 to complete this impregnated type cathode 1. In this impregnated type cathode 1, emission of unnecessary electrons at the time of a cathode operation and evaporation of excessive particles of the emissive material 1a are suppressed, to thereby obtain a stable electron emission characteristic. Also, as a sufficient quantity of the emissive material 1a can be stored in the whole cathode, lengthening of life of the cathode can be aimed.

5. 发明专利

JPH10291272A CONNECTING STRUCTURE AND ITS FORMING METHOD 失效
公开(公告)号：JPH10291272A
公开(公告)日：1998-11-04
申请号：JP10367897
申请日：1997-04-21
申请人： SONY CORP , CITIZEN WATCH CO LTD , SHIMEO SEIMITSU KK
发明人： HASEGAWA YOJI , FURUKAWA MAKOTO , HIRAI YOSHIRO , OKUMURA TETSUYA , KOBAYASHI HIROMICHI
IPC分类号： B32B7/04
摘要： PROBLEM TO BE SOLVED: To improve yield of a product by connecting a first element to be connected to a second element to be connected via a plating film, thereby reducing a connecting deviation. SOLUTION: This connecting structure comprises a plating film 12, formed as a coating film on surfaces of a first element 10 to be connected and a second element 11 to be connected, out of a material having lower melting point than that of the element 11 and interposed between the element 10 and the element 11 to connect the element 10 to the element 11.

6. 发明专利

JPH03182035A ELECTRON GUN 失效
公开(公告)号：JPH03182035A
公开(公告)日：1991-08-08
申请号：JP31940189
申请日：1989-12-08
申请人： SONY CORP , CITIZEN WATCH CO LTD
发明人： AMANO YASUNOBU , ONO HIROSHI , HIRAI YOSHIRO , USHIKUBO CHUJI
IPC分类号： H01J9/14 , H01J29/48 , H01J29/50
摘要： PURPOSE:To improve reliability of an electron gun with the damage to an insulation spacer at the time of soldering evaded by setting the Vickers hardness of first and second electrodes composed of stainless steel to a given value. CONSTITUTION:In the soldering of first and second electrodes G1 and G2 of an electron gun 9 and an insulation spacer 1, the spacer 1 is arranged between the first electrodes G1r, G1g, and G1b and the second electrode G2 to be heated in a vacuum furnace or hydrogen furnace etc., in a state where the spacer 1 is fixed with a jig to connect the electrodes G1 and G2. The electrodes G1 and G2 are formed with stainless steel, and their hardness is made below 150, preferably 145 or less. Other third - fifth electrodes G3-G5 and a convergence means C are formed with the similar stainless steel to be annealed under a normal annealing condition. The electrodes G1 and G2 are made severe annealing to lower hardness below 150 preferably 145 or less. This prevents the cracking of the spacer 1 at the time of soldering.

7. 发明专利

JP2002352704A MANUFACTURING METHOD OF COLD CATHODE 失效
公开(公告)号：JP2002352704A
公开(公告)日：2002-12-06
申请号：JP2001156412
申请日：2001-05-25
申请人： CITIZEN WATCH CO LTD
发明人： YOSHINO NOBUYUKI , SAKAKIBARA YASUSUKE , HASHIMOTO HIDETAKE , SATO ATSUSHI , ITO SHIZUE , HIRAI YOSHIRO
IPC分类号： H01J61/067 , H01J9/02
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a cold cathode having superior mechanical strength, stable behavior of light emission and long service life. SOLUTION: This is a manufacturing method of a cold cathode for a discharge tube, which has a cold cathode at the tip of a lead sealed through the edge of a glass tube containing rare gas and mercury and has a processes of producing a mixed powder of titanium hydride powder and a high-melting point metal powder, and manufacturing a formed body with the mixed powder, and also sintering the formed body.

8. 发明专利

JP2000040464A MANUFACTURE OF IMPREGNATED CATHODE 失效
公开(公告)号：JP2000040464A
公开(公告)日：2000-02-08
申请号：JP22247498
申请日：1998-07-23
申请人： SHIMEO SEIMITSU KK , CITIZEN WATCH CO LTD
发明人： KOBAYASHI IKUO , KOBAYASHI KUNIYASU , YOSHINO NOBUYUKI , SATO ATSUSHI , HASHIMOTO HIDETAKE , HIRAI YOSHIRO
IPC分类号： H01J9/04
摘要： PROBLEM TO BE SOLVED: To provide a stable electron emitting characteristic by reducing containing carbon element component and oxygen component by providing a process of temporarily sintering in a hydrogen atmosphere containing steam and a process of regularly sintering in a hydrogen atmosphere or a vacuum. SOLUTION: For example, a mixture such as barium oxide is impregnated into the respective pores as an electron emitting substance 1a by using a sintered conductive porous body (a porous sintered body 11) of an integral structure composed of tungsten having constant porosity. In forming this porous sintered body 11, first of all, tungsten powder, an organic binder and water are mixed to form slurry to be formed as a mold after being granulated. In a temporarily sintering process, the mold is temporarily sintered in a hydrogen atmosphere of one atmospheric pressure being 30% in the ratio of water vapor pressure under a condition of 1000 deg.C and for one hour. In this case, a temperature range is set to 600 deg.C to 1500 deg.C. Next, the mold is regularly sintered in a vacuum of about 10-4 Torr under a condition of 1800 deg.C and for three hours. In this case, the temperature range is set to 1500 to 2000 deg.C.

9. 发明专利

JPH081445A ROD MATERIAL FOR FORMING HOLE 失效
公开(公告)号：JPH081445A
公开(公告)日：1996-01-09
申请号：JP14184094
申请日：1994-06-23
申请人： CITIZEN WATCH CO LTD
发明人： HIRAI YOSHIRO , SAITO KAZUO , TAKAHASHI NOBUYUKI , ONO HISAO
IPC分类号： G04D3/00 , B23P15/32
摘要： PURPOSE:To provide a rod material with which a hole with less curved parts can be formed. CONSTITUTION:The circumference hardness of a rod member is gradually decreased from the center to the outer periphery of the cross-section of the rod member. Optimumly, the hardness of the center of the cross-section is Hv350 to 390, and the hardness of the outer peripheral part is decreased by Hv15 to 25 therefrom. Accordingly, the hardness is decreased toward the outer periphery, thereby it is possible to form a hole with less curved parts.

10. 发明专利

JPH06126367A MANUFACTURE OF PRECISE PLANAR BASE BOARD 失效
公开(公告)号：JPH06126367A
公开(公告)日：1994-05-10
申请号：JP30325592
申请日：1992-10-16
申请人： CITIZEN WATCH CO LTD
发明人： ITO YUKIO , HIRAI YOSHIRO , KATAYAMA MASANORI
IPC分类号： B21J5/00 , G04B29/02
摘要： PURPOSE:To simplify the machining and to machine a base board for an in- expensive watch by forming projecting parts and recessed parts on a blank, perforating and blanking an outer shape. CONSTITUTION:The blank (a base board for a watch) 2 of a steel with low hardness and a high elongation percentage is inserted in an opening part of a strip 1 or a short size steel utilized with the steel of high hardness and low elongation percentage and held therebetween. Then, the projecting parts 7a-7f or the recessed parts 3-6 are formed on the blank 2 by coining or forging in a continuous machining by making a pilot hole 1a of the strip 1 as a guide. The perforation of a round or a special shaped holes 7b, 8b, etc., is applied. An outer shape 11 is released from a blanking strip 1. In such a manner, in the coining, or the forging, the perforating and the outer shape finishing of the projection part and the recessing parts of the base plate of the watch, the deep recessing part or the fine pin, etc., can be precisely machined with only the deformation processing without eliminating the cutting process like the punching.

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