Patents by Inventor Syoozi Ikeda

Syoozi Ikeda 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).

  • Patent number: 5235313
    Abstract: A thin film resistor having a characteristic that an increase phenomenon of a resistance controlled at a high temperature is generated. The resistor is obtained by controlling its composition and manufacturing method so as to suppress an increase in the resistance of a Cr-Si resistor thin film due to deposition of chromium silicide at a high temperature. A sputtering target, which is used as a raw material for forming the thin film, is made from chromium silicide and silicon so that some chromium silicide is already formed immediately after deposition, and chromium oxide and silicon oxide are contained in the thin film so as to suppress the speed whereat chromium and silicon, which do not form silicide, form silicide by heating after deposition and to allow the above silicide formation to advance slowly.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: August 10, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Yasunori Narizuka, Syoozi Ikeda, Akira Yabushita, Masakazu Ishino, Juichi Kishida