Patents by Inventor Rihiko Suzuki

Rihiko Suzuki 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).

  • Dyed molded article
    Patent number: 6482916
    Abstract: The present invention provides a dyed molded article obtained by dyeing a polycarbonate molded article having repeating structural units represented by the following formula (1-a): Since the polycarbonate molded article is dyed easily, the present invention has made it possible to provide a lens made of a dyed polycarbonate.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: November 19, 2002
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Keisuke Takuma, Atsuo Otsuji, Kenichi Fujii, Kenichi Sugimoto, Masao Imai, Rihiko Suzuki