Patents by Inventor Kouzou Igarashi

Kouzou Igarashi 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).

  • Metal oxide film resistor
    Patent number: 5889459
    Abstract: According to the present invention, there is provided a metal oxide film resistor which has an insulating substrate, a metal oxide resistive film having at least a metal oxide film having a positive temperature coefficient of resistance and/or a metal oxide film having a negative temperature coefficient of resistance, and/or a metal oxide insulating film. The metal oxide film resistor is not affected by moisture or alkali ions in the insulating substrate. The resistance of the film itself does not change. The metal oxide film resistor is extremely reliable.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: March 30, 1999
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Akiyoshi Hattori, Yoshihiro Hori, Masaki Ikeda, Akihiko Yoshida, Yasuhiro Shindo, Kouzou Igarashi