Patents by Inventor Tomomasa Nakamura

Tomomasa Nakamura 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).

  • Mixed solvent composition, and cleaning method and cleaning apparatus using the same
    Patent number: 5968882
    Abstract: Disclosed herein is a nonflammable mixed solvent composition comprising a completely fluorinated organic compound and a partially fluorinated organic compound as essential components, wherein the completely fluorinated organic compound is contained in an amount of at least 5% by weight.
    Type: Grant
    Filed: September 15, 1995
    Date of Patent: October 19, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirohide Matsuhisa, Tomomasa Nakamura