Patents by Inventor Katsumi Kayasima

Katsumi Kayasima 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).

  • Media converter
    Patent number: D474772
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: May 20, 2003
    Assignee: NEC Corporation
    Inventors: Masaru Deguchi, Katsumi Kayasima, Muneyoshi Mikuni
  • Media gateway
    Patent number: D485550
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: January 20, 2004
    Assignee: NEC Corporation
    Inventors: Masaru Deguchi, Katsumi Kayasima, Muneyoshi Mikuni