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59 条记录 (耗时 0.034 秒)

    Method for manufacturing accelerometer sensor
    55.
    发明授权
    Method for manufacturing accelerometer sensor 失效
    制造加速度传感器的方法

    公开(公告)号：US5725785A

    公开(公告)日：1998-03-10

    申请号：US604720

    申请日：1996-02-21

    申请人： Tatsuya Ishida ,  Akihiko Watanabe

    发明人： Tatsuya Ishida ,  Akihiko Watanabe

    IPC分类号： B81B3/00 ,  G01P15/08 ,  G01P15/12 ,  H01L29/84 ,  H01L21/00 ,  B44C1/22

    CPC分类号： G01P15/18 ,  G01P15/0802 ,  G01P15/123 ,  G01P2015/084

    摘要： A method of manufacturing an accelerometer sensor having a mass portion is disclosed. A P-type silicon area is formed in an upper area of a P-type silicon substrate by means of impurity doping. An N-type silicon layer is formed on the silicon substrate through vapor phase epitaxy. A recess defining the mass portion is formed in the silicon substrate through an etching process. A current is supplied to the silicon substrate in an electrolytic solution, such as HF aq., while the substrate is connected to an anode of a power supply. The P-type silicon area is then converted to a porous silicon area. The porous silicon area is subjected to a wet etching to be hollowed, thus obtaining a mass portion of a desired shape.

    摘要翻译： 公开了一种制造具有质量部分的加速度传感器的方法。 通过杂质掺杂在P型硅衬底的上部区域中形成P型硅区域。 通过气相外延在硅衬底上形成N型硅层。 通过蚀刻工艺在硅衬底中形成限定质量部分的凹部。 在电解质溶液（例如HF等）中将硅电流供给到硅衬底，同时将衬底连接到电源的阳极。 然后将P型硅区域转换成多孔硅区域。 将多孔硅区域进行湿式蚀刻以进行中空化，从而获得所需形状的质量部分。

    Rotor for a permanent-magnet motor
    56.
    发明授权
    Rotor for a permanent-magnet motor 失效
    转子用于永磁电动机

    公开(公告)号：US5402024A

    公开(公告)日：1995-03-28

    申请号：US41217

    申请日：1993-03-31

    申请人： Akihiko Watanabe ,  Sotomitsu Maeda ,  Hiroshi Dohi ,  Muneo Yamamoto ,  Yukio Honda ,  Hiromitsu Nakano ,  Masahiro Yasohara ,  Hisataka Kato

    发明人： Akihiko Watanabe ,  Sotomitsu Maeda ,  Hiroshi Dohi ,  Muneo Yamamoto ,  Yukio Honda ,  Hiromitsu Nakano ,  Masahiro Yasohara ,  Hisataka Kato

    IPC分类号： H02K1/27 ,  H02K21/12

    CPC分类号： H02K1/2733

    摘要： With a view to reduce vibrations generated by a motor and improve resistance to heat, reliability and vibration isolation properties without increasing the cost or the number of manufacturing steps in a rotor for a permanent-magnet motor, a rotor core is formed of an outer peripheral portion by which the permanent magnet is fixed, and a central portion by which a shaft is fixed, a clearance is provided between the outer peripheral portion and the central portion, and the outer peripheral portion is connected to the central portion by means of a plurality of fastening members. Thus, a rotor having excellent vibration isolation properties can be obtained. Since the rotor core is formed of laminated iron plates on which the outer peripheral portion, the central portion and the fastening members are all formed as one piece, resistance to heat, reliability and the vibration isolation properties can be enhanced without increasing the cost or the number of manufacturing steps.

    摘要翻译： 为了减少电动机产生的振动，提高耐热性，可靠性和隔振性能，而不增加用于永磁电动机的转子的成本或制造步骤的数量，转子铁芯由外周 固定永磁体的部分和固定轴的中心部分，在外周部分和中心部分之间设置间隙，并且外周部分通过多个连接到中心部分 的紧固件。 因此，可以获得具有优异的隔振性能的转子。 由于转子铁芯由外周部分，中心部分和紧固部件全部形成为一体的层压铁板形成，因此可以在不增加成本的情况下提高耐热性，可靠性和隔振性能 制造步骤数量。

    Process for producing a resin bonded magnet structure
    57.
    发明授权
    Process for producing a resin bonded magnet structure 失效
    生产树脂粘结磁体结构的方法

    公开(公告)号：US5149477A

    公开(公告)日：1992-09-22

    申请号：US840634

    申请日：1992-02-21

    申请人： Fumitoshi Yamashita ,  Akihiko Watanabe ,  Masami Wada

    发明人： Fumitoshi Yamashita ,  Akihiko Watanabe ,  Masami Wada

    IPC分类号： H01F1/08 ,  C08L63/00 ,  H01F1/057 ,  H01F41/02 ,  H02K1/02 ,  H02K15/03

    CPC分类号： H01F1/0578 ,  C08L63/00 ,  H02K1/02 ,  H02K15/03 ,  Y10S264/58

    摘要： A process for producing resin bonded magnet structures is disclosed which includes the steps of: (a) adding a solid epoxy resin of at least one epoxy oligomer and a microcapsule which contains at least one liquid epoxy resin to a melt spun powder of a rare earth element-iron alloy to form a granulated intermediate material, wherein the epoxy oligomer has alcoholic hydroxyl groups in the molecular chain thereof and the solid epoxy resin has a softening temperature (Durran's melting point) of 65.degree. C. to 85.degree. C.; (b) mixing the granulated intermediate material with a powdered curing agent and a lubricant to form a compound; (c) forming a green body of a resin bonded magnet by compressing the compound, and then integrating the green body directly with a supporting member; and (d) curing the solid and liquid epoxy resins in the green body by application of heat to form a rigid structure of the resin bonded magnet integrated with the supporting member.

    摘要翻译： 公开了一种生产树脂粘结磁体结构的方法，其包括以下步骤：（a）将至少一种环氧低聚物的固体环氧树脂和含有至少一种液体环氧树脂的微胶囊加入到稀土熔融纺丝粉末中 元素 - 铁合金以形成颗粒状中间体材料，其中环氧低聚物在其分子链中具有醇羟基，固体环氧树脂的软化温度（Durran的熔点）为65℃至85℃。 （b）将颗粒状中间材料与粉末状固化剂和润滑剂混合以形成化合物; （c）通过压缩化合物形成树脂粘结磁体的生坯，然后将生坯直接与支撑构件一体化; 和（d）通过加热来固化生坯中的固体和液体环氧树脂，以形成与支撑构件一体化的树脂粘结磁体的刚性结构。

    Serial input/output semiconductor memory
    59.
    发明授权
    Serial input/output semiconductor memory 失效
    串行输入/输出半导体存储器

    公开(公告)号：US5018110A

    公开(公告)日：1991-05-21

    申请号：US407091

    申请日：1989-09-14

    申请人： Tsutomu Sugiyama ,  Akihiko Watanabe

    发明人： Tsutomu Sugiyama ,  Akihiko Watanabe

    IPC分类号： G11C11/401 ,  G06F12/04 ,  G11C7/00 ,  G11C7/10 ,  G11C11/409

    CPC分类号： G11C7/1048 ,  G11C7/1075

    摘要： A semiconductor memory includes a random access memory (RAM) and a serial access memory (SAM). The RAM includes a memory cell array including memory cells. The SAM includes a data register including a plurality of bit cells which store bits of data read out from the memory cell array and assigned consecutive numbers, a first data bus line which is connected to odd numbered bit cells of the data register, a second data bus line which is connected to even numbered bit cells of the data register, a switching circuit for outputting serial data from the data register by alternately connecting to one of the first and second data bus lines, a first reset circuit for resetting the first data bus line when active, a second reset circuit for resetting the second data bus line when active, and a control circuit for selectively making the first and second reset circuits active so that a data transfer period of one of the first and second data bus lines starts prior to an end of a data transfer period of the other of the first and second data bus lines.