Patents by Inventor Haruo Yasoshima

Haruo Yasoshima 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).

  • Fan-shaped stamp pad
    Patent number: 5531829
    Abstract: A fan-shaped stamp pad that provides from one to a multitude of differently colored inks to a single stamp, at the option of a user. Additionally, the fan-shaped stamp pad permits the application of a great number of colors of ink to a stamp while requiring only one application of the stamp to the stamp pad, thereby reducing the chance of smearing, or otherwise contaminating, the ink from one section of the pad to another.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: July 2, 1996
    Assignee: Tsukineko, Inc.
    Inventor: Haruo Yasoshima
  • Combined stamp pad and container
    Patent number: D372731
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: August 13, 1996
    Assignee: Tsukineko, Inc.
    Inventor: Haruo Yasoshima