Patents by Inventor Masabumi Tsukuda

Masabumi Tsukuda 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).

  • Patent number: D471201
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: March 4, 2003
    Assignee: Seiko Instruments Inc.
    Inventor: Masabumi Tsukuda
  • Patent number: D473862
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: April 29, 2003
    Assignee: Seiko Instruments Inc.
    Inventor: Masabumi Tsukuda
  • Patent number: D473863
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: April 29, 2003
    Assignee: Seiko Instruments Inc.
    Inventor: Masabumi Tsukuda
  • Patent number: D473864
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: April 29, 2003
    Assignee: Seiko Instruments Inc.
    Inventor: Masabumi Tsukuda
  • Patent number: D598129
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: August 11, 2009
    Assignee: Seiko Instruments Inc.
    Inventors: Masabumi Tsukuda, Yukimitsu Kijima
  • Patent number: D598567
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: August 18, 2009
    Assignee: Seiko Instruments Inc.
    Inventors: Masabumi Tsukuda, Takeshi Kobayashi
  • Patent number: D328713
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: August 18, 1992
    Assignee: Seiko Instruments Inc.
    Inventor: Masabumi Tsukuda
  • Patent number: D623685
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: September 14, 2010
    Assignee: Seiko Instruments Inc.
    Inventors: Masabumi Tsukuda, Koji Fujimoto
  • Patent number: D671985
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: December 4, 2012
    Assignee: SII Data Service Corp.
    Inventors: Hiromi Chida, Masabumi Tsukuda, Osamu Tanihira