Patents by Inventor Youichi Tatsuta

Youichi Tatsuta 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).

  • Lighting control switch
    Patent number: D533511
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: December 12, 2006
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Yoshiyuki Nakashima, Youichi Tatsuta
  • Controller for a lighting unit
    Patent number: D533512
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: December 12, 2006
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Yoshiyuki Nakashima, Youichi Tatsuta
  • Copying machine
    Patent number: D311417
    Type: Grant
    Filed: January 14, 1988
    Date of Patent: October 16, 1990
    Assignee: Sharp Corporation
    Inventors: Mikio Kosako, Youichi Tatsuta
  • Copying machine
    Patent number: D312834
    Type: Grant
    Filed: February 25, 1988
    Date of Patent: December 11, 1990
    Assignee: Sharp Corporation
    Inventors: Mikio Kosako, Youichi Tatsuta
  • Refrigerator
    Patent number: D317454
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: June 11, 1991
    Assignee: Sharp Corporation
    Inventors: Katsuya Matsumura, Youichi Tatsuta