Patents by Inventor Mitsuo Ioka

Mitsuo Ioka 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).

  • Glaze resistor
    Patent number: 4985377
    Abstract: The invention relates to glaze resistors which are used for electronic parts of hybrid integrated circuit devices, chip resistors, resistor network, etc. The glaze resistor comprises 4.0 to 70.0 wt % of a conductive component composed of a metal silicide and a metal boride and 30.0 to 96.0 wt % of glass in which a rate of said metal boride is 1.0 to 68.0 wt %. Thus, the glaze resistor can be formed by sintering in a non-oxidizing atmosphere and can provide a circuit, together with conductor pattern of base metals such as Cu.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: January 15, 1991
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takeshi Iseki, Osamu Makino, Mitsuo Ioka, Hirotoshi Watanabe