Patents by Inventor Masami Okutani

Masami Okutani 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).

  • Marking pen
    Patent number: D470887
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: February 25, 2003
    Assignee: Easthill Industry Ltd.
    Inventor: Masami Okutani
  • Pen cap
    Patent number: D471234
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: March 4, 2003
    Assignee: Easthill Industry Ltd.
    Inventor: Masami Okutani
  • Double ended stamp-shaped pen
    Patent number: D545895
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: July 3, 2007
    Assignee: Easthill Industry Ltd.
    Inventor: Masami Okutani
  • Marker pen
    Patent number: D545899
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: July 3, 2007
    Assignee: Easthill Industry Ltd.
    Inventor: Masami Okutani