Patents by Inventor Masami Kudo

Masami Kudo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Holder of electroconductive contactor, and method for producing the same
    Patent number: 6642728
    Abstract: The holder for an electroconductive contact unit according to the present invention uses a silicon wafer having a laminated structure including a first silicon layer, second silicon layer and silicon oxide film which is disposed between the two silicon layers. A small hole is formed in the first silicon layer for coaxially and slidably guiding a head portion of an electroconductive needle member, and a large hole is formed in the second silicon layer for receiving a flange portion of the needle member and a compression coil spring so that the silicon oxide film serves as a stopper for the flange member. Thus, by finishing the surface of the first silicon layer by lapping, the projecting length of the electroconductive needle member can be defined at a high precision.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: November 4, 2003
    Assignee: NHK Spring Co., Ltd
    Inventors: Masami Kudo, Toshio Kazama, Yoshio Yamada, Kazushi Watanabe