Patents by Inventor Shun Kusaba

Shun Kusaba 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).

  • Mechanical pencil
    Patent number: D553680
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: October 23, 2007
    Assignee: Zebra Co., Ltd.
    Inventor: Shun Kusaba
  • Cap for writing instrument
    Patent number: D569911
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: May 27, 2008
    Assignee: Zebra Co., Ltd.
    Inventor: Shun Kusaba
  • Correction pen
    Patent number: D570913
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: June 10, 2008
    Assignee: Zebra Co., Ltd.
    Inventor: Shun Kusaba
  • Retractable marking pen
    Patent number: D574429
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: August 5, 2008
    Assignee: Zebra Co., Ltd.
    Inventors: Shun Kusaba, Keiko Togawa
  • Ballpoint pen
    Patent number: D596233
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: July 14, 2009
    Assignee: Zebra Co., Ltd.
    Inventor: Shun Kusaba