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1. 发明专利

JPH0759303A CERAMIC COMMUTATOR 失效
公开(公告)号：JPH0759303A
公开(公告)日：1995-03-03
申请号：JP19580793
申请日：1993-08-06
申请人： HITACHI LTD , HITACHI KOKI KK
发明人： SAITO YUKIO , CHIBA AKIO , SUZUKI YASUTAKA , SAKAMOTO SHINICHI
IPC分类号： H01R39/04 , H02K13/00
摘要： PURPOSE:To improve the heat, abrasion and oxidation resistances of a commutator, by configuring the commutator while using insulating ceramics as its insulating segments and using oxide-based high-temperature-superconductive conductors as its conductive segments. CONSTITUTION:In a ceramics commutator, as its insulating segment, such an insulating ceramics 3 as Al2O3, Si3N4 and ZrO2 is used, and as its conductive segment, an oxide-based high-temperature-superconductive conductor made of a Bi-based material (Bi2Sr2Ca1Cu2Ox, Bi2Sr2Ca2Cu3Ox, etc.) is used. Further, to the surface of the tube made of the insulating ceramic 3, the oxide-based high-temperature-superconductive conductors 1 each of which is cut in the form of a strip are bonded by the use of such a brazing material 2 as a Ti-Ag-Cu- based one. Thereby, the heat, abrasion and oxidation resistances of the commutator is improved, and a highly reliable motor which is resistant to the drive having a slight overload too can be created.

2. 发明专利

JPH07111760A COMMUTATOR USING SILICIDE BASED CERAMICS 失效
公开(公告)号：JPH07111760A
公开(公告)日：1995-04-25
申请号：JP25278693
申请日：1993-10-08
申请人： HITACHI LTD , HITACHI KOKI KK
发明人： CHIBA AKIO , SUZUKI YASUTAKA , SAITO YUKIO , SAKAMOTO SHINICHI
IPC分类号： C04B35/58 , H02K13/00
摘要： PURPOSE:To keep the state of the surface of a commutator stable for the heat and spark generated in the case of the driving of a motor, by making the conductive member of the commutator out of sintered silicide based ceramics. CONSTITUTION:As the material for a commutator which has a high oxidation resistance and has no increase of the electric resistance of its surface even in case of its heating to a high temperature and has no damage caused by sparks, one of silicide based ceramics is best, and among them, TiSi and MoSi are preferable. The commutator comprises coductive parts 1 made of a conductive material and insulation parts 2 made of air or an insulating material. When all of them are made of ceramic materials, there is no necessity of the coincidence of the thermal expansion coefficient of the conductive material with the one of the insulation material. The constituent conductive material of the commutator is dependent on the motor capacity relative to it, but the desirable specific electric resistance of the conductive ceramics is not larger than 10 OMEGAm, since the large electric resistance is accompanied by a heat generation in the conductive segment part of the commutator. Also, the desirable electric resistance of the insulation material necessary for the interlayer insulation between the conductive segments and for the insulation of a central insulation ring from others is not smaller than 10 OMEGAm.

3. 发明专利

DE69222256T2 未知
公开(公告)号：DE69222256T2
公开(公告)日：1998-02-12
申请号：DE69222256
申请日：1992-10-22
申请人： HITACHI LTD
发明人： NAITO TAKASHI , NAMEKAWA TAKASHI , KATO AKIRA , SUZUKI YASUTAKA , ARIKAWA KOUJI , OHATA TSUKASA , YAMAMURA SHIGEKI , GUNJI HIDEKI
IPC分类号： C03C8/24 , G11B5/127 , G11B5/23

4. 发明专利

DE69222256D1 未知
公开(公告)号：DE69222256D1
公开(公告)日：1997-10-23
申请号：DE69222256
申请日：1992-10-22
申请人： HITACHI LTD
发明人： NAITO TAKASHI , NAMEKAWA TAKASHI , KATO AKIRA , SUZUKI YASUTAKA , ARIKAWA KOUJI , OHATA TSUKASA , YAMAMURA SHIGEKI , GUNJI HIDEKI
IPC分类号： C03C8/24 , G11B5/127 , G11B5/23

5. 发明专利

JP2005314030A Moving handrail drive mechanism of passenger conveyor 有权
标题翻译：乘客输送机的移动驾驶机构
公开(公告)号：JP2005314030A
公开(公告)日：2005-11-10
申请号：JP2004131385
申请日：2004-04-27
申请人： Hitachi Building Systems Co Ltd , Hitachi Ltd , 株式会社日立ビルシステム , 株式会社日立製作所
发明人： SUZUKI HIROSHI , YAMAKI MASAMITSU , ANDO TAKEYOSHI , KOJIMA WAHEI , YAMASHITA TOMONORI , SUZUKI YASUTAKA , KANAI TETSUYA , ATSUZAWA TERUYOSHI , SEKIYA FUTOSHI
IPC分类号： B66B23/04
摘要： PROBLEM TO BE SOLVED: To provide a moving handrail drive mechanism of a passenger conveyor capable of preventing a moving handrail from being damaged, and extending the lifetime of the moving handrail even when a strong traveling resistance is generated in the moving handrail in a traveling condition.
SOLUTION: A reaction force generating member 22 to generate the reaction force against the force to move a supporting plate body 9 for the driving rollers toward a moving handrail 5 is provided to prevent driving rollers 8, 8A and driven rollers 11, 11A from being excessively pressed against the moving handrail 5.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供能够防止移动扶手被损坏的乘客输送机的移动扶手驱动机构，并且即使当在移动扶手中产生强的行驶阻力时也延长了移动扶手的使用寿命旅行状况。解决方案：提供反作用力产生构件22，以产生抵抗将驱动辊的支撑板体9移动到移动扶手5的力的反作用力，以防止驱动辊8,8A和从动辊11,11A （C）2006年，JPO＆NCIPI

6. 发明专利

JP2001121274A DEVICE AND METHOD FOR FRICTION-STIR-WELDING 失效
公开(公告)号：JP2001121274A
公开(公告)日：2001-05-08
申请号：JP30351199
申请日：1999-10-26
申请人： HITACHI LTD
发明人： SAKAMOTO MASAHIKO , OKAMURA HISANORI , AOTA KINYA , FUNYU MASAO , SUZUKI YASUTAKA
IPC分类号： B23K20/26 , B23K20/12 , B23K103/10
摘要： PROBLEM TO BE SOLVED: To provide a friction-stir-welding device with which lack of welding, that is, defective welding does not occur especially on the rear side of a weld zone and a method therefore and a welded structure. SOLUTION: In the friction-stir-welding device provided with a rotationally driving device and a welding tool which is driven by the rotationally driving device and is formed with a material harder than an object to be worked, after pressing and inserting the above welding tool into the weld zone of the object while rotating the welding tool, the welding tool is relatively moved in the welding direction, the friction-stir-welding of the above object is performed and a thermal shielding member shielding frictional heat is provided on the rear side of the above object.

7. 发明专利

JPH10105915A GLASS SEALED BODY AND ITS PRODUCTION 失效
公开(公告)号：JPH10105915A
公开(公告)日：1998-04-24
申请号：JP25423996
申请日：1996-09-26
申请人： HITACHI LTD
发明人： YAMAMOTO HIROTAKA , NAITO TAKASHI , NAMEKAWA TAKASHI , SUZUKI YASUTAKA , MOTOWAKI NARIHISA
IPC分类号： H01J9/02 , C03C8/24 , G02B6/122 , G11B5/127 , G11B5/187 , H01L23/29
摘要： PROBLEM TO BE SOLVED: To provide a glass sealed body small in residual stress and high precisely controlled in the stress by cooling at a specific profile after sealing at a prescribed temp. SOLUTION: The glass sealed body is obtained by working many grooves having 0.3mm depth (e) and 0.3mm width (d) on the upper surface of a Mn-Zn ferrite substrate 2, placing a glass plate 1 for sealing on the surface and fusing the glass by heating to cast to the grooves. The glass sealed body is kept in vacuum at a temp. equal to or above the deformation temp. of the glass to form the sealing and to defoam the generated bubbles. The glass sealed body is, thereafter, cooled in a nitrogen atmosphere at 2 deg.C/min average cooling rate. In the process, when the temp. is lowered to cooling holding temp. T2, the glass sealed body is kept for a fixed cooling holding time (t2=30min). In such a case, the cooling holding temp. T2 is setted to ±10 deg.C of the glass transition temp. Tg. The decrease of the residual stress is confirmed by the retardation value measured by using a 650nm wavelength He-Ne laser beam as a light source.

8. 发明专利

JPH09149537A PROTECTIVE RELAY DEVICE 失效
公开(公告)号：JPH09149537A
公开(公告)日：1997-06-06
申请号：JP30255895
申请日：1995-11-21
申请人： HITACHI LTD
发明人： SUZUKI YASUTAKA , KOMATSU SHINJI , NORO JUN
IPC分类号： H02H3/00 , H02H3/02 , H02H3/05
摘要： PROBLEM TO BE SOLVED: To report normal monitor results, etc., to a control system even if abnormality occurs in a system bus, etc. SOLUTION: A processor 10 takes in a signal, which shows the state of a power system, as a digital signal, and judges the state of the above power system, from the setting condition. A man-machine interface 70 is connected to the processor 10 through a system bus 90, whereby the input of setting condition from outside is possible, and also it has a CPU71 within. A relay is operated when it fulfills the setting condition by the judgment of the processor 10. CPU71 built in the man-machine interface 70 is equipped with an operation monitoring means which monitors the operation on the side of system bus, from the signal of the processor 10 transmitted through the system bus 90, and reports the abnormality to an external control system when this operation monitoring means detects the abnormality in the operation on the side of system bus.

9. 发明专利

JPH09113660A FUSION REACTOR 失效
公开(公告)号：JPH09113660A
公开(公告)日：1997-05-02
申请号：JP26970295
申请日：1995-10-18
申请人： HITACHI LTD
发明人： YASUTOMI YOSHIYUKI , NAKAGAWA MOROO , SAWAI YUICHI , CHIBA AKIO , SUZUKI YASUTAKA
IPC分类号： G21B1/11 , G21B1/00 , G21B1/13
摘要： PROBLEM TO BE SOLVED: To reduce shear stress due to eddy current and radiation of neutron by constituting a cooling base plate constituting a coolant flow path of silicon base composite material with high electric resistivity and low radiation. SOLUTION: A cooling metal base body 5 of a vacuum vessel-cooling system placed on the periphery of a vacuum vessel is constituted by combining a diverter cooling base plate consisting of metal silicon 10 and reinforcing particles 11, etc., and a plasma opposing material 9 such as carbon/carbon composite. As for the reinforcing material, at least one of silicon carbide, carbon, boron carbide, beryllium, magnesium, etc., is selected and added to silicon 10 as reinforcing particles 11, whisker state or long fiber state. As the base body 5 is constituted of metal base complex material with light element and high electric resistivity in this manner, shear force due to eddy current is reduced and reliability is improved. Also, as exposure to radiation is reduced, safety in waste processing improves.

10. 发明专利

JPH0668631A MAGNETIC DISK DEVICE 失效
公开(公告)号：JPH0668631A
公开(公告)日：1994-03-11
申请号：JP22381892
申请日：1992-08-24
申请人： HITACHI LTD
发明人： HIGUCHI SHINSUKE , SUZUKI YASUTAKA , MIYAZAKI TAKESHI
IPC分类号： C04B41/88 , G11B5/60 , G11B5/72 , G11B21/21
摘要： PURPOSE:To suppress the wear of a protective film mainly contg. carbon and to improve the wear durability of a magnetic disk by incorporating the oxide of a metallic element in a reduced state into aluminum oxide which is a chief material. CONSTITUTION:The surface of the magnetic disk 1 is coated with the protective film consisting of carbon and the magnetic head 3 consists of a slider 12 and a magnetic head element 13 formed in a part of the surface thereof. The oxide constituting the slider 12 is formed of the aluminum oxide as its chief material and further the oxide of the metallic element of group IVa or Va of periodic table is incorporated in the reduced state at >=0.1mol% ratio in terms of the metallic atoms into the aluminum oxide. The oxide of niobium or tantalum or titanium is incorporated as the oxide of the metallic element of group IVa or Va of periodic table therein.

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