Patents by Inventor Min Akiyoshi

Min 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 attachment for sunglasses
    Patent number: 5056906
    Abstract: Prescription lenses are detachably applied to sunglasses by securing the lenses between lens holder elements of a prescription lens holder and attaching the lens holder to the sunglass frame.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: October 15, 1991
    Inventor: Min Akiyoshi