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    • 44. 发明授权
    • Grounding cable
    • 接地电缆
    • US06271466B1
    • 2001-08-07
    • US09413245
    • 1999-10-07
    • Masaki TsuneokaYoshinao OkawaYoshihiro MuranoKenichi Okada
    • Masaki TsuneokaYoshinao OkawaYoshihiro MuranoKenichi Okada
    • H01B1106
    • H01B7/0009H01B7/0054
    • A method of preventing a high-frequency noise generated in an electronic device, remaining in a grounding cable as a standing wave and transmitted to electric devices, is disclosed, which method including disposing, directly or via an insulating layer, a non-metallic conductive material having a slight electric resistance, on a conductor of the above-mentioned grounding cable, making the electric resistance of the non-metallic conductive material consume the high-frequency noise flowing on the conductor surface of the grounding cable by virtue of a skin effect, whereby resonance of the high-frequency noise is reduced. Resonance of the high-frequency noise generated from various electronic devices in an office building and the like can be easily reduced. Consequently, various disadvantages due to high-frequency noise can be avoided. In addition, the slight electric resistance R of the non-metallic conductive material and inductance L of the metal conductor are set to satisfy the formula: 2&pgr;fL/R≦1, so that the resonance of a high-frequency noise can be reduced.
    • 公开了一种防止在电子设备中产生的高频噪声,留在接地电缆中作为驻波并传输到电气设备的方法,该方法包括直接或经由绝缘层设置非金属导电 在上述接地电缆的导体上具有轻微电阻的材料,使得非金属导电材料的电阻消耗由于皮肤效应而在接地电缆的导体表面上流动的高频噪声 从而降低了高频噪声的共振。 可以容易地减少由办公楼等中的各种电子设备产生的高频噪声的共振。 因此,可以避免由于高频噪声引起的各种缺点。 此外,非金属导电材料的轻微电阻R和金属导体的电感L被设定为满足公式:2pifL / R <= 1,使得可以降低高频噪声的谐振。
    • 45. 发明授权
    • Multi-chip-module
    • 多芯片模块
    • US5150274A
    • 1992-09-22
    • US727042
    • 1991-07-09
    • Kenichi OkadaKyoko AmemiyaTakao TerabayashiHideaki SasakiKuninori ImaiShinichi Kazui
    • Kenichi OkadaKyoko AmemiyaTakao TerabayashiHideaki SasakiKuninori ImaiShinichi Kazui
    • H01L23/373H01L23/433H01L23/473
    • H01L23/3733H01L23/4338H01L23/473H01L2224/16H01L2224/73253
    • A multi-channel module with a plurality of chips is mounted on a multilayer circuit board and has a simple and highly reliable structure cooling system for cooling the heat generated by the chips consuming a large amount of electric power. The cooling system uses in the horizontal direction a coolant supply pipe having straight tube sections and flexible bellows sections alternately disposed in the axial direction of the pipe. The straight tube sections of the aforesaid coolant supply pipe are brought into contact with the upper faces of the chips by a spring force so as to cool continuously the plurality of chips with the coolant flowing in one coolant supply pipe thereby providing a simply structured cooling system for chips. Such a structured cooling system enables the collective assembly of cooling parts for a plurality of chips with only a small number of parts and produces highly reliable effects thereby being able to implement the miniaturization of a main frame computer.
    • 具有多个芯片的多通道模块安装在多层电路板上,并且具有简单且高度可靠的结构冷却系统,用于冷却由消耗大量电力的芯片产生的热量。 冷却系统在水平方向上使用具有直管段的冷却剂供应管和沿管的轴向交替设置的柔性波纹管部。 上述冷却剂供给管的直管段通过弹簧力与芯片的上表面接触,以便冷却剂在一个冷却剂供应管中流动而连续地冷却多个芯片,从而提供简单的结构化冷却系统 用于芯片 这种结构化的冷却系统使得能够将多个芯片的冷却部件集中组装,仅具有少量的部件,并且产生高度可靠的效果,从而能够实现主机计算机的小型化。
    • 49. 发明授权
    • T-joint manufacturing apparatus
    • T型接头制造装置
    • US4676088A
    • 1987-06-30
    • US742794
    • 1985-06-10
    • Kenichi OkadaHiroshi AsaoHideo Yonemura
    • Kenichi OkadaHiroshi AsaoHideo Yonemura
    • B21C37/29B21D37/16
    • B21C37/292Y10T29/49442
    • This invention relates to an apparatus for manufacturing a T-joint, which consists of a tube portion and a collar portion, by using burring techniques. The apparatus is provided with a high-frequency induction heating unit for heating the circumferential portion of a pilot hole made in a tube, a cooling ring for ejecting a coolant to the circumferential portion of the pilot hole, and a temperature distribution control for controlling the heating rate of the heating unit and the coolant ejection rate of the cooling ring. The apparatus thus constructed enables the working temperature of the parts of the circumferential portion of the pilot hole in the plane of which includes the axes of the tube and the collar to be lower than that of the parts of the circumferential portion in the plane extending at right angle to the above-mentioned plane. Therefore, this apparatus can be used effectively to manufacture a T-joint of which the thicknes of the collar portion is substantially uniform in the circumferential direction of the circumferential portion of the pilot hole.
    • 本发明涉及一种用于制造T形接头的设备,该设备由管部分和套环部分组成,通过使用翻边技术。 该装置设置有用于加热管中制成的引导孔的圆周部分的高频感应加热单元,用于将冷却剂喷射到引导孔的周向部分的冷却环,以及用于控制 加热单元的加热速度和冷却环的冷却剂喷射速率。 如此构造的装置使得导向孔的圆周部分的包括管和轴环的轴线的部分的工作温度低于在延伸的平面中的平面中的圆周部分的部分的工作温度 与上述平面成直角。 因此,能够有效地利用该装置来制造在导向孔的圆周部的圆周方向上轴环部的厚度大致均匀的T形接头。
    • 50. 发明授权
    • Keyboard switch assembly
    • 键盘开关总成
    • US4527021A
    • 1985-07-02
    • US576872
    • 1984-02-03
    • Yoshitsugu MorikawaKiyoshi NomotoKenichi Okada
    • Yoshitsugu MorikawaKiyoshi NomotoKenichi Okada
    • H01H13/712G06F3/02H01H13/52H01H13/702H01H13/703H01H13/70
    • H01H13/702H01H13/703H01H2203/02H01H2203/054H01H2209/002H01H2211/028H01H2213/002H01H2217/024
    • A key-board switching unit for electronic instruments is constructed with a printed circuit board provided with a plural number of pairs of fixed contact points on the surface and an insulating covering sheet member mounted on or above the printed circuit board and provided on the bottom surface with movable contact points to face the fixed contact points. Different from conventional units in which exact correspondence in the positions of the fixed and movable contact points is required with time- and labor-consuming assembling works, the movable contact points in multiple numbers distributed over the whole bottom surface of the covering sheet member in such a manner that, when the covering sheet member is pushed and depressed at the switching position, the fixed contact points forming a pair of the counter-electrodes are contacted and electrically connected with at least one movable contact point even without exact positioning of the covering sheet member and the printed circuit board to give a great advantage of the increased productivity in the works of assembling. In particular, the movable contact points are formed of a pressure-sensitive electroconductive rubber.
    • 用于电子仪器的键盘切换单元由印刷电路板构成,印刷电路板在表面上设置多个固定接触点,绝缘覆盖片部件安装在印刷电路板上或上方,并设置在底面上 具有可动接触点以面对固定接触点。 与传统的单元不同,在传统的单元中,需要在固定和可移动的接触点的位置上精确的对应而且花费时间的组装工作,多个数量的可移动的接触点分布在覆盖片构件的整个底表面上 当覆盖片材在切换位置处被按压时,形成一对对电极的固定接触点即使没有精确定位的覆盖片也与至少一个可动接触点接触并电连接 成员和印刷电路板,大大提高了组装工作效率。 特别地,可动接触点由压敏导电橡胶形成。