Patents by Inventor Yoichi Hagiwara

Yoichi Hagiwara 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).

  • Metallizing composition
    Patent number: 4806160
    Abstract: Disclosed is a metallizing composition comprising an oxynitride glass of the Mg-Al-Si system and/or the Y-Al-Si system and a powder of a high-melting-point metal. This composition has a good affinity with a nitride ceramic material and a carbide ceramic material and is useful for forming metallized layers on substrates of these ceramic materials.
    Type: Grant
    Filed: November 29, 1985
    Date of Patent: February 21, 1989
    Assignee: Kyocera Corporation
    Inventors: Yoichi Hagiwara, Kenichi Shimizu, Satoshi Tanaka