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121. 发明专利

JP3338409B2 失效
公开(公告)号：JP3338409B2
公开(公告)日：2002-10-28
申请号：JP24002399
申请日：1999-08-26
IPC分类号： E21C37/18 , H01T2/00 , H05H1/24

122. 发明专利

JP2001279422A METHOD FOR PRODUCING MAIN CONSTITUTING MEMBER OF COUNTER-SURGE PROTECTING DEVICE 失效
公开(公告)号：JP2001279422A
公开(公告)日：2001-10-10
申请号：JP2000093107
申请日：2000-03-30
申请人： MEKATORO GIKEN KK
发明人： KATODA TAKASHI
IPC分类号： C23C8/12 , H01T1/16 , H01T2/00
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a metallic member having a high surge resistance film for the main constituting member, which protects other devices from a surge by utilizing a dielectric breakdown phenomenon of the high surge resistance film on the metallic surface, i.e., a counter-surge protecting device. SOLUTION: In this producing method member the metallic member is heated at a high temperature for a prescribed time in an atmosphere composed of hydrogen or inert gas or both to before an oxidation treatment. In this way, impurities in the vicinity of the surface of the metallic member are removed, and the uniformity of the composition and film thickness of a high surge resistance film formed by the subsequent oxidation can be improved.

123. 发明专利

JP2001509302A 失效
公开(公告)号：JP2001509302A
公开(公告)日：2001-07-10
申请号：JP52811198
申请日：1997-12-17
IPC分类号： H02H9/06 , H01H20060101 , H01T20060101 , H01T2/00 , H02H3/02 , H02H9/02 , H02H9/04

124. 发明专利

JP2001060486A VOLTAGE CUTTING-OFF DEVICE 失效
公开(公告)号：JP2001060486A
公开(公告)日：2001-03-06
申请号：JP23525599
申请日：1999-08-23
申请人： NISSIN ELECTRIC CO LTD
发明人： KAWAKITA TAMOTSU
IPC分类号： B23K26/00 , B23K26/06 , B23K26/064 , B23K26/067 , B23K26/073 , G02B3/10 , G02B5/08 , G02B5/09 , H01T1/20 , H01T2/00
摘要： PROBLEM TO BE SOLVED: To provide a voltage cutting-off device simple in structure and capable of providing stable switching operation. SOLUTION: This voltage cutting-off device is structured by series-connecting three gaps 1 to 3, and equipped with a laser light source 16 for outputting laser light 18 for triggering and a multi-focus convex lens 30a provided in the lowest-stage gap electrode 11. The multi-focus convex lens 30a has three focal zones different in focal distances from each other, receives the laser light 18 from the laser light source 16, and causes the laser light 18 to pass through the respective focal zones to converge it on the respective gaps 1 to 3. More specifically, the laser light 18 is converged on surfaces of light-receiving electrodes 12c, 13c of the middle-stage gap electrodes 12, 13, and on a surface of the highest-stage gap electrode 14.

125. 发明专利

JP3133849B2 失效
公开(公告)号：JP3133849B2
公开(公告)日：2001-02-13
申请号：JP1174393
申请日：1993-01-27
IPC分类号： H01T2/00 , H01L25/065 , H01L25/07 , H01L25/10 , H01L25/11 , H01L25/18

126. 发明专利

JPH1041046A LASER TRIGGERED ELECTRIC DISCHARGE TYPE SWITCH DEVICE 失效
公开(公告)号：JPH1041046A
公开(公告)日：1998-02-13
申请号：JP19794796
申请日：1996-07-26
申请人： SANGYO SOZO KENKYUSHO
发明人： KUSAMA HIDEAKI , YAGI TAKASHI
IPC分类号： H01J17/40 , H01J1/34 , H01T2/00
摘要： PROBLEM TO BE SOLVED: To fix a main electric discharging line so as to reduce the grade of dispersion of switch action time, by providing a small hole through which a laser beam passes in an anode and cathode arranged opposite to each other and providing discharge parts projecting from the small hole edge part opposite to each other. SOLUTION: A cathode 5 to which a high voltage HV is applied and a grounding anode 4 are arranged opposite to each other. Both cathode and anode are formed in hemispheres with their spherical surfaces opposed to each other and provided with small holes 4a, 5a penetrating at positions respectively shifted from the centers of respective hemispheres. A metallic mesh 6 is arranged near the entrance inside of the small hole 4a of the anode 4. On the other hand, a laser beam 2 from a laser unit 1 is regulated in its beam diameter by means of an aperture 3 and allowed to pass the abovementioned small holes 5a, 4a. By means of irradiation of this laser beam 2, photo electrons are discharged from the metallic mesh 6. These photo electrons are accelerated by an electric field between the cathode 5 and the anode 4 to ionize gas, act as a trigger, and top end parts 4b, 5b projecting from the small hole edge parts induce electric discharge acting as discharge part so as to make a switch conductive.

127. 发明专利

JPH0727749B2 失效
公开(公告)号：JPH0727749B2
公开(公告)日：1995-03-29
申请号：JP1601189
申请日：1989-01-24
IPC分类号： H01H33/66 , H01H69/00 , H01T2/00

128. 发明专利

JPH06334242A LASER TRIGGER DISCHARGE TYPE SWITCH DEVICE 失效
公开(公告)号：JPH06334242A
公开(公告)日：1994-12-02
申请号：JP14674193
申请日：1993-05-27
申请人： SANGYO SOZO KENKYUSHO
发明人： KUSAMA HIDEAKI , YAGI TAKASHI
IPC分类号： H01S3/038 , H01T1/20 , H01T2/00
摘要： PURPOSE:To protect the surfaces of anode and cathode against damage caused by irradiation with laser beam. CONSTITUTION:A metal mesh 8 disposed in the small hole 4a of a cathode 4 is irradiated with a laser beam 2 from a laser unit 1 to emit photoelectrons which ionize gas molecules between the cathode 4 and an anode 5 thus triggering discharge therebetween. Since the laser beam is not focused directly on the surface of anode or cathode, the surface thereof are not damaged thus producing discharge efficiently.

129. 发明专利

JPH06283246A SEMICONDUCTOR-TYPE LIGHTNING ARRESTOR 失效
公开(公告)号：JPH06283246A
公开(公告)日：1994-10-07
申请号：JP6818993
申请日：1993-03-26
申请人： NGK INSULATORS LTD
发明人： ICHIOKA TATSUMI , YAMAMOTO YOSHINORI , TANGE MASAJI
IPC分类号： H01T2/00
摘要： PURPOSE:To provide a semiconductor type lightning arrestor which is set in a hanging insulator and can deal with lightning with large energy as compared with a conventional one while the deformation of the original shape of the hanging insulator being suppressed to the minimum. CONSTITUTION:A semiconductor element 6 like a thyristor which becomes conductive at the time of over voltage is buried in a storage part 4 formed in a shade part 2 of a handing insulator 1. Consequently, since an arrestor can deal with lightening with large energy as compared with a conventional one made of a zinc oxide element, the number of the element sheets to be buried can be decreased and thus the deformation of the original shape of the hanging insulator is suppressed to the minimum.

130. 发明专利

JPH06223952A SEMICONDUCTOR DEVICE FOR ELECTRIC POWER 失效
公开(公告)号：JPH06223952A
公开(公告)日：1994-08-12
申请号：JP1174393
申请日：1993-01-27
申请人： NGK INSULATORS LTD
发明人： OSHIMA TOKUO , KATO KAZUAKI
IPC分类号： H01T2/00 , H01L25/065 , H01L25/07 , H01L25/10 , H01L25/11 , H01L25/18
摘要： PURPOSE:To provide a semiconductor device for electric power capable of surely preventing the movement or rotation of an internal element in a package without impairing the conductivity between a pin and the internal element. CONSTITUTION:A multi-stage lamination type semiconductor device is laminated with an internal element into many stages, and it is stored in a package 1. A pin 10 penetrating the package 1 and an auxiliary pin 12 for preventing the release of the pin 10 are both inserted into a pin hole 9 formed on the side face of the internal element, and the release of the pin 10 is prevented by a wedge effect.

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