Patents by Inventor Toshifumi Ichihashi

Toshifumi Ichihashi 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).

  • Spectacles
    Patent number: 6000797
    Abstract: The invention is to embed a stretching spring member 1a, a compression spring member 1b and a supporting member 2 having a large friction coefficient as a nose pad into spectacles, thereby to constitute a displacement prevention mechanism K for preventing displacement of the spectacles.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: December 14, 1999
    Assignee: Toshifumi Ichihashi
    Inventors: Toshifumi Ichihashi, Kurumi Ichihashi