Patents by Inventor Hidekazu Nakazawa

Hidekazu Nakazawa 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: D444499
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: July 3, 2001
    Assignee: Pentel Kabushiki Kaisha
    Inventor: Hidekazu Nakazawa
  • Ball point pen
    Patent number: D458964
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: June 18, 2002
    Assignee: Pentel Kanushiki Kaisha
    Inventor: Hidekazu Nakazawa
  • Writing instrument
    Patent number: D466156
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: November 26, 2002
    Assignee: Pentel Kabushiki Kaisha
    Inventor: Hidekazu Nakazawa