Patents by Inventor Masatoshi Kubo

Masatoshi Kubo 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).

  • Electrical contact and process of manufacture
    Patent number: 4088803
    Abstract: Electrical contacts are produced by processes comprising (1) forming on a metallic body a first layer of low melting metal(s) and (2) forming on the first layer a second layer of high melting metal(s). The thus produced contacts possess prolonged life, approximately 10 times that of conventional contacts when they are operated as working contact.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: May 9, 1978
    Assignee: Fujitsu Limited
    Inventors: Masatoshi Kubo, Toshito Hara, Yuji Hayashi, Makoto Kassai, Norio Matsumoto, Tsuneyoshi Nishi, Koushichi Suzuki, Michiko Kodama, Kaduwo Sintani