Patents by Inventor Minoru Akiyoshi

Minoru Akiyoshi 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).

  • Prescription lens holder for use with sunglasses
    Patent number: 5106178
    Abstract: Prescription lenses are detachably applied to sunglasses by securing the lenses between prescription lens holder elements of a prescription lens holder and attaching the prescription lens holder to the sunglass frame. Projections are attached to the sunglass frame, each defining two spaced indents at opposed ends for receiving a portion of the prescription lens holder elements.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: April 21, 1992
    Inventor: Minoru Akiyoshi