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1. 发明专利

JPH04104487A SLIP RING 失效
公开(公告)号：JPH04104487A
公开(公告)日：1992-04-06
申请号：JP21992790
申请日：1990-08-23
申请人： TOSHIBA CORP
发明人： KIKUCHI KOKI , NATORI KOJI , TAKAISHI KAZUTOSHI , KOZU HIROTO
IPC分类号： H01R39/08 , A61B6/03
摘要： PURPOSE:To reduce the cost by precisely holding the ring interval between multiple electrode rings, and simplify the holding structure of the electrode rings. CONSTITUTION:Multiple insulating holders 16 are provided at an interval in the peripheral direction of electrode rings 19 of a slip ring 10. The insulating holders 16 are formed into a comb teeth shape, and multiple ring holding grooves 20 are provided in a line on one side. Multiple (several to tens) electrode rings 19 are inserted and held in the holding grooves 20. Electrode brushes 24 serving as moving contacts are slidably kept in electrical contact with the outer peripheries of multiple rings 19. Multiple holders 16 are arranged at a proper interval in the peripheral direction of multiple electrode rings 18 of the slip ring 10, the rings 18 are inserted and supported in the holding grooves 20 of the holders 16, thus the rings 18 hold the interval between electrodes via the comb teeth of the holders 16. The rings 18 can precisely hold the ring interval between electrodes.

2. 发明专利

JPH03112305A GROUND COIL FOR MAGNETIC LEVITATION VEHICLE 失效
公开(公告)号：JPH03112305A
公开(公告)日：1991-05-13
申请号：JP24529389
申请日：1989-09-22
申请人： TOSHIBA CORP
发明人： YOSHIDA TETSUO , KOZU HIROTO
IPC分类号： B60L13/04
摘要： PURPOSE:To prevent partial discharge regardless of some defect and to prevent dielectric breakdown even if the insulation layer is made thin by arranging such that an air gap is provided between the insulation layer of coil body and the floor when a flange section is secured onto the track bed. CONSTITUTION:Concerning to the bearing of potential between a coil conductor 1a and the track bed 4, almost all potential is applied onto the air layer in a gap G because the permittivity of an insulation layer 2 is about five times as high as that of epoxy resin. When the air gap G is kept at several mm, the air layer can withstand against voltage of 10 kv or higher. Almost all poten tial is applied onto the air layer but it causes no discharge with respect to the voltage applied onto the coil conductor 1a, and since the potential on the insulation layer 2 is low partial discharge does not take place even if there are some defects.

3. 发明专利

JPS6274954A SEALING MATERIAL FOR ELECTRONIC COMPONENT 失效
公开(公告)号：JPS6274954A
公开(公告)日：1987-04-06
申请号：JP21682185
申请日：1985-09-30
申请人： TOSHIBA CORP
发明人： KOZU HIROTO , SHIMIZU TOSHIO , KAGAWA YOSHIHIRO
IPC分类号： C08G59/00 , C08L63/00 , H01L23/29 , H01L23/31
摘要： PURPOSE:To provide the titled sealing material which causes little reduction in its volume during curing and can prevent deformation of cases, peeling of the sealing material from the case and cracking, by mixing an epoxy resin with a specified filler, a hardener and a colorant. CONSTITUTION:An epoxy resin 11 contg. a hardener and a colorant mixed therewith is filled with a filler consisting of 50-70% fibrous filler 12 composed of short fibers having a diameter of 0.5-13mu and a length of 50-60mu and 50-30% particulate filler 14 which has a particle size of 1.2-30mu and is to be packed into gaps 13 formed between the fillers 12 with a high packing density.

4. 发明专利

JPS61152775A ELECTRICALLY-CONDUCTIVE COATING COMPOUND 失效
公开(公告)号：JPS61152775A
公开(公告)日：1986-07-11
申请号：JP27367684
申请日：1984-12-27
申请人： TOSHIBA CORP
发明人： SHIMIZU TOSHIO , KOZU HIROTO
IPC分类号： C09D5/24
摘要： PURPOSE:The titled coating compound useful for electronic device boxes, etc., having improved adhesivity to plastics and sufficient shielding effect on strong electromagnetic wave, obtained by incorporating a coating compound resin with electrically-conductive particles having approximately the same specific gravity as that of the resin. CONSTITUTION:(A) The coating compound resin 5 is incorporated with (B) the electrically-conductive particles 4 having approximately the same specific gravity as that of the component A, to give the aimed coating compound. The surface of the hollow metallic particles 1, or the hollow or collapsed organic material particles or inorganic material particles 2 is coated with a metal and preferably used as the component B.

5. 发明专利

JPH04148511A GROUND COIL OF MAGNETICALLY LEVITATED RAILWAY 失效
公开(公告)号：JPH04148511A
公开(公告)日：1992-05-21
申请号：JP27220290
申请日：1990-10-12
申请人： TOSHIBA CORP
发明人： YOSHIDA TETSUO , KOZU HIROTO
IPC分类号： H01F5/04 , H01F7/20 , H02H9/04
摘要： PURPOSE:To absorb a surge voltage at the entrance of a ground coil and to make the coil small and lightweight by a method wherein a surge-voltage absorption part composed of a zinc oxide element is formed at a lead part which is connected directly to the feeder line of the ground coil. CONSTITUTION:At a ground coil 2 which has been first connected to a feeder line, a coil conductor 5 is covered with an insulating material, and a grounding layer 8 is formed on the surface of an insulating layer 6. Zinc oxide elements 10 are buried collectively in the insulating layer 6 at lead parts 9 which connect individual ground coils; contact makers 12 coming into contact with coil conductors 11 and metal spacers 13 are installed at the inside of said elements 10. The grounding layer 8 is formed at the outer circumference in the same manner as above; a buffer layer 14 is formed between the zinc oxide elements 10 and the spacers 13. A surge voltage which vreeps into from the feeder line is absorbed at the entrance of the coil by the zinc oxide elements 10 between the coil conductors 11 of the ground coil 2 and the grounding layer 8, and is set to a protective level or lower of said elements 10 at a ground coil which is connected later. Consequently, a reasonable insulating thickness can be formed, and the small and lightweight coil can be obtained. Said elements 10 may be installed at all ground coils in a section.

6. 发明专利

JPH0486575A ABNORMALITY DETECTOR OF GROUND COIL FOR MAGNETIC LEVITATION TYPE RAILROAD 失效
公开(公告)号：JPH0486575A
公开(公告)日：1992-03-19
申请号：JP20127190
申请日：1990-07-31
申请人： TOSHIBA CORP
发明人： YOSHIDA TETSUO , KOZU HIROTO
IPC分类号： G01R31/06
摘要： PURPOSE:To enable the detection of aging of insulation of a ground coil beforehand by providing at least more than one high frequency current transformers on a earth wire of the ground coil to connect the secondary side thereof to a differential amplifier. CONSTITUTION:A coil conductor 2 is covered with an insulation layer 3 and a high frequency current transformer 9 is disposed on an earth wire 8 for connection between earth layers of a ground coil 1, which is provided with the earth layers on the surface thereof. When outputs of at least more than current transformers 9 are connected to a differential amplifier (D. AMP) and an HPF, currents i1, and i2 flow to the current transformers 9 having a current associated with a frequency component of an operation voltage overlapping a current of a pulse-like high frequency component accompanied by an aging of insulation. When the currents are inputted into the D.AMP, as an electrostatic capacitance of the coil 1 is almost equal in capacity, the current corresponding to the frequency component of the operation voltage is canceled to be almost zero and the pulse-like high frequency component alone is left, so that the current is associated with the aging of the insulation is detected from HPF. This enables the detection of the aging of the insulation of the coil 1 beforehand thereby achieving a rationalization of manufacture and higher safety of the operation of a vehicle.

7. 发明专利

JPH01234004A GAS-INSULATED ELECTRIC APPARATUS 失效
公开(公告)号：JPH01234004A
公开(公告)日：1989-09-19
申请号：JP6073988
申请日：1988-03-15
申请人： TOSHIBA CORP
发明人： YOSHIDA TETSUO , OSHIMA IWAO , MASAKI NOBUO , KOZU HIROTO , MATSUZAWA KIKUO , TAKAGI KUNIHIKO , KOYAMA MICHIHIKO
IPC分类号： H02B13/055
摘要： PURPOSE:To improve an insulting voltage and to prevent an insulator from being deteriorated by mounting an oxygen absorber on the inner wall of a sealed vessel. CONSTITUTION:A moisture absorber 20 and an oxygen absorber 41 are mounted at positions which do not disturb a circuit breaker 13 or the like on the rear inner wall 12b of a sealed vessel 12. The moisture absorber absorbs moisture in the inner wall of the vessel 12, the outer wall of an electric apparatus such as the breaker 13 or the like, or SF6 gas medium. Oxygen in the air remaining in the vessel 12 is gradually removed by the absorber 41, a flashover voltage at the time of low temperature of the apparatus in insulating medium of SF6 gas is improved, and it prevents organic components of the insulator from being deteriorated at the time of high temperature.

8. 发明专利

JPS61163818A REINFORCING RESIN MEMBER 失效
公开(公告)号：JPS61163818A
公开(公告)日：1986-07-24
申请号：JP486385
申请日：1985-01-17
申请人： TOSHIBA CORP
发明人： KOZU HIROTO , SHIMIZU TOSHIO
IPC分类号： B29C39/10 , B29K105/06 , B29K105/34 , B29L31/34
摘要： PURPOSE:To prevent separation, cracks due to the repetition of thermal stress and the like from occurring by a structure wherein a buffler layer consisting of epoxy resin composition, the volumetric shrinkage of which is small and at the same time the difference between the thermal expansion coefficient of ceramic and that of which is small, is arranged between a ceramic part and a molded resin outer tube. CONSTITUTION:An outer tube 21, which is molded of epoxy resin or the like in advance, sheathes the ceramic outer tube 1 of a vacuum valve with a proper gap between the outer periphery of the tube 1 and the inner periphery of the tube 2. A resin buffer layer 3 is formed in the gap by pouring epoxy resin composition in the gap integrating them by heating and hardening the resin. Liquid epoxy resin composition to form the buffer layer 3 consists of inorganic powder such as silica, alumina or the like, milled fibers such as glass, alumina or the like, hardening agent and coloring agent. Because the epoxy resin composition contains a large quantity of inorganic powder and milled fibers, its volumetric shrinkage during hardening reaction is small. At the same time, the thermal expansion coefficient of the epoxy resin composition is nearly equal to that of ceramic. Accordingly, the influence of thermal stress due to the thermal expansion coefficients of the ceramic outer tube and of the epoxy resin outer tube on the change of temperature becomes smaller, resulting in preventing separation and cracks from occurring.

9. 发明专利

JPS6154111A Resin molding part 失效
标题翻译：树脂成型部分
公开(公告)号：JPS6154111A
公开(公告)日：1986-03-18
申请号：JP17411984
申请日：1984-08-23
申请人： Toshiba Corp
发明人： SHIMIZU TOSHIO , KOZU HIROTO
IPC分类号： H01B17/00

10. 发明专利

JPH10303022A MANUFACTURE OF INSULATION RESIN CAST ARTICLE 失效
公开(公告)号：JPH10303022A
公开(公告)日：1998-11-13
申请号：JP10594697
申请日：1997-04-23
申请人： TOSHIBA CORP
发明人： KOZU HIROTO , MORI YUTAKA , SHIMIZU TOSHIO , JINNO YOSHIKAZU , MAKISHIMA SATOSHI , YASUE MASAHARU
IPC分类号： B29C33/12 , B29C39/10 , B29C39/26 , H01F7/20
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a resin cast article in which initial insulation characteristics are maintained extending over a long period even after cast molding. SOLUTION: In this manufacturing method, when a winding material 7 of a conductive band material 7a which requires ground insulation is held in a casting mold 4, an insulation spacer 5 is put in a gap between the inner surface of the casting mold 4 and the winding material 7, and an insulation resin is injected into the gap and solidified, thereby an insulation resin cast article is manufactured. This method includes a process in which, around the outer periphery of the winding material 7 containing an uneven part which the insulation spacer 5 faces, an insulation tape 8 covering the uneven part is wound.

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