Patents by Inventor Yukako Mizuhara

Yukako Mizuhara 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).

  • Method of manufacturing silicon nitride whiskers
    Patent number: 5334565
    Abstract: Disclosed is a method for producing long silicon nitride whiskers. The production method encompasses reacting diatomaceous earth on a carbon boat in a gas flow composed of a reducing agent and a nitriding agent at a temperature of 1,200.degree.-1,700.degree. C.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: August 2, 1994
    Assignees: Nakama Syokai Company, Tokai Kogyo Company, Yusaku Takita, Ohita Gas Co., Ltd., Ohgasu Co., Ltd.
    Inventors: Yusaku Takita, Tatsumi Ishihara, Yukako Mizuhara, Masao Noguchi