Patents by Inventor Masaki Okuwaki

Masaki Okuwaki 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).

  • Light-emitting diode
    Patent number: D623611
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: September 14, 2010
    Assignee: Citizen Electronics Co., Ltd.
    Inventor: Masaki Okuwaki
  • Light-emitting diode
    Patent number: D628166
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: November 30, 2010
    Assignee: Citizen Electronics Co., Ltd.
    Inventor: Masaki Okuwaki
  • Light-emitting diode
    Patent number: D647068
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: October 18, 2011
    Assignee: Citizen Electronics Co., Ltd.
    Inventor: Masaki Okuwaki
  • Light-emitting diode
    Patent number: D661263
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: June 5, 2012
    Assignee: Citizen Electronics Co., Ltd.
    Inventor: Masaki Okuwaki