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1. 发明授权

US06245166B1 Material for sliding contact, composite clad material, and small-sized direct current motor using the same 有权
标题翻译：滑动接触材料，复合包覆材料及使用该材料的小型直流电动机
公开(公告)号：US06245166B1
公开(公告)日：2001-06-12
申请号：US09242607
申请日：1999-12-21
申请人： Isao Shibuya , Keiji Nakamura , Kenji Shiraki , Toshiya Yamamoto , Takao Asada
发明人： Isao Shibuya , Keiji Nakamura , Kenji Shiraki , Toshiya Yamamoto , Takao Asada
IPC分类号： C22C506
CPC分类号： B32B15/01 , B32B15/018 , C22C5/06 , C22C5/08 , H01R13/03 , H01R39/025 , H01R39/26 , Y10S428/929 , Y10T428/12493 , Y10T428/12889 , Y10T428/12896 , Y10T428/12903
摘要： An object of the present invention is to provide a material for a sliding contact whose alloy composition does not contain an environmentally detrimental substance such as Cd, which exhibits excellent contact resistance, whose electrical functions are good and free of time-course variation, and which further exhibits excellent wear resistance. The material for a sliding contact assumes the form of an Ag—Zn—Pd, Ag—Zn—Pd—Cu, Ag—Zn—Pd—Ni, or Ag—Zn—Pd—Cu—Ni alloy. In the compositions of these alloys, the Zn content is 0.1-3.0% by weight, the Pd content is 0.1-1.5% by weight, and the balance is Ag. When Cu is contained, the Cu content is 0.1-3.0% by weight. When Ni is contained, the Ni content is 0.01-0.5% by weight. Zn, Pd, and Cu are present in the Ag &agr; phase in the form of solid solution. Ni particles are finely dispersed in the alloys. A composite clad material is formed through use of the material for a sliding contact. A commutator manufactured through use of the composite clad material is incorporated into a small-sized direct current motor used in a household electrical appliance.
摘要翻译：本发明的目的是提供一种用于滑动接触的材料，其合金组成不含有诸如Cd的环境有害物质，其表现出优异的接触电阻，其电功能良好且无时间变化，并且其中进一步表现出优异的耐磨性。用于滑动接触的材料呈现Ag-Zn-Pd，Ag-Zn-Pd-Cu，Ag-Zn-Pd-Ni或Ag-Zn-Pd-Cu-Ni合金的形式。在这些合金的组成中，Zn含量为0.1-3.0重量％，Pd含量为0.1-1.5重量％，余量为Ag。当含有Cu时，Cu含量为0.1-3.0重量％。当含有Ni时，Ni含量为0.01-0.5重量％。 Zn，Pd和Cu以固溶体的形式存在于Agα相中。 Ni颗粒细分散在合金中。通过使用用于滑动接触的材料形成复合包覆材料。通过使用复合包覆材料制造的换向器被并入到家用电器中使用的小型直流电动机中。

2. 发明授权

US4503421A Digital to analog converter 失效
标题翻译：数模转换器
公开(公告)号：US4503421A
公开(公告)日：1985-03-05
申请号：US382189
申请日：1982-05-26
申请人： Kyuichi Hareyama , Kenji Shiraki , Kazuo Ryu
发明人： Kyuichi Hareyama , Kenji Shiraki , Kazuo Ryu
IPC分类号： H03M1/10 , H03M1/00 , H03M1/68 , H03K13/02
CPC分类号： H03M1/10 , H03M1/74
摘要： A digital to analog converter having an improved conversion linearity is disclosed.The digital to analog converter comprises means for receiving an input digital signal (1), means for dividing the first digital signal to a plurality of digital signals (2, 3), a plurality of conversion means (8, 9) for converting the divided digital signals to analog signals, respectively, and means (10) for summing the analog signals to produce a summed analog signal corresponding to the input digital signal.
摘要翻译：公开了具有改进的转换线性度的数模转换器。数模转换器包括用于接收输入数字信号（1）的装置，用于将第一数字信号划分成多个数字信号（2,3）的装置，用于将分割的数字信号数字信号到模拟信号，以及用于对模拟信号求和以产生对应于输入数字信号的求和的模拟信号的装置（10）。

3. 发明授权

US06853104B2 Miniature motor and method for manufacturing the same 有权
标题翻译：微型电动机及其制造方法
公开(公告)号：US06853104B2
公开(公告)日：2005-02-08
申请号：US10353763
申请日：2003-01-29
申请人： Kenji Shiraki , Hideki Itaya
发明人： Kenji Shiraki , Hideki Itaya
IPC分类号： F16C17/10 , H02K5/167 , H02K7/116 , H02K7/08
CPC分类号： F16C17/10 , H02K5/1672 , H02K7/1166
摘要： A miniature motor includes a closed-bottomed cylindrical motor casing having a cylindrical bearing support portion projecting from a central portion of the bottom of the motor casing, a motor-casing-side bearing accommodated in the bearing support portion, a casing cover fitted to an open end portion of the motor casing, a casing-cover-side bearing accommodated in a central portion of the casing cover, and a rotor rotatably supported by means of the motor-casing-side bearing and the casing-cover-side bearing. The end face of the motor-casing-side bearing is concentrically polished at at least a portion which, when the rotor is urged toward the motor casing, abuts a washer provided on a shaft of the rotor. The above structure reduces sliding loss on the end face of an oil-impregnated bearing which receives a thrust load of the rotor generated due to rotation of the motor.
摘要翻译：微型电动机包括：底部圆筒形电动机壳体，其具有从电动机壳体的底部的中心部分突出的圆柱形轴承支撑部分，容纳在轴承支撑部分中的电动机壳体侧轴承，电机壳体的开口端部，容纳在壳体盖的中央部的壳体盖侧轴承，以及通过电动机壳体侧轴承和壳体侧轴承可旋转地支撑的转子。电动机壳体侧轴承的端面在至少一部分同心抛光，当转子被推向电动机壳体时，该至少一部分邻接设置在转子的轴上的垫圈。上述结构减少了油浸轴承的端面上的滑动损失，其承受由于电动机的旋转而产生的转子的推力负载。

4. 发明授权

US06465927B2 Miniature electric motor 有权
公开(公告)号：US06465927B2
公开(公告)日：2002-10-15
申请号：US09983123
申请日：2001-10-23
申请人： Kenji Shiraki , Hideki Itaya
发明人： Kenji Shiraki , Hideki Itaya
IPC分类号： H02K514
CPC分类号： H02K5/145 , H02K5/24
摘要： A miniature electric motor comprises a housing, a cover plate fitted in an opening portion of the housing, a stator fixed to an inner circumferential surface of the housing, a rotor supported rotatably to one and the other bearing portions mounted on the housing and the cover plate, respectively, the rotor being disposed in the housing, and a brush holder holding brushes slidingly engaging with a commutator of the rotor, the brush holder being mounted on the cover plate. A first projection is formed in the vicinity of a center of the brush holder, and the first projection is forcibly pressed at a predetermined pressure against the cover plate. According to the present invention, without using any vibration proof elastic member, it is possible to reduce a noise of the miniature motor and keep the motor quiet. This motor is used for driving an air conditioner of an automobile, or the like.

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