Patents by Inventor Kazuhiko Takesa

Kazuhiko Takesa 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).

  • Butterfly valve for controlling high-temperature fluid
    Patent number: 4697615
    Abstract: A butterfly valve for controlling high-temperature fluid including a ceramic valve is disclosed. The butterfly valve exhibits excellent high-temperature sealing and heat insulating characteristics and strength sufficient to rigid support the valve disc therein. The valve comprises a valve stem and a valve disc integrally formed of ceramics and is housed in a casing through a valve guide opening and the valve guide opening is closed with a plug through which the valve stem is inserted.
    Type: Grant
    Filed: May 1, 1985
    Date of Patent: October 6, 1987
    Assignees: Asahi Glass Company Ltd., Nippon Kokan Kabushiki Kaisha
    Inventors: Yoshihiro Tsuchimoto, Kazuhiko Takesa