Patents by Inventor Masafumi Ohki

Masafumi Ohki 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).

  • Wrist watch
    Patent number: D518743
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: April 11, 2006
    Assignee: Citizen Tokei Kabushiki Kaisha
    Inventors: Satoshi Sugiura, Masafumi Ohki
  • Wrist watch case with band
    Patent number: D537738
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: March 6, 2007
    Assignee: Citizen Tokei Kabushiki Kaisha
    Inventors: Masafumi Ohki, Ikuko Tada
  • Wrist watch case with band
    Patent number: D551991
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: October 2, 2007
    Assignee: Citizen Holdings Co., Ltd.
    Inventor: Masafumi Ohki