Patents by Inventor Masakatsu Takeguchi

Masakatsu Takeguchi 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 and apparatus for cutting polycrystalline silicon rods
    Patent number: 4955357
    Abstract: A method and apparatus for cutting polycrystalline silicon rods which comprise applying pressing forces at at least two positions on a plane perpendicular to the longitudinal axis of a polycrystalline silicon rod at a plurality of positions symmetrical to said axis.
    Type: Grant
    Filed: January 22, 1988
    Date of Patent: September 11, 1990
    Assignee: Hi-Silicon Co., Ltd.
    Inventors: Masakatsu Takeguchi, Takashi Yamamoto, Mamoru Nakano