Patents by Inventor Noriko Yokoyama

Noriko Yokoyama 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).

  • Ink bottle
    Patent number: D471584
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: March 11, 2003
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Katsumi Sugata, Akira Yamamoto, Fumihiro Ueno, Noriko Yokoyama, Kyoichi Inoue
  • Ink bottle with a cap
    Patent number: D472918
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: April 8, 2003
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Fumihiro Ueno, Noriko Yokoyama
  • Cap for ink bottle
    Patent number: D482390
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: November 18, 2003
    Assignee: Olympus Optical Co. Ltd.
    Inventors: Fumihiro Ueno, Noriko Yokoyama
  • Ink bottle
    Patent number: D484530
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: December 30, 2003
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Katsumi Sugata, Akira Yamamoto, Fumihiro Ueno, Noriko Yokoyama, Kyoichi Inoue