Patents by Inventor Hisashi Hujita

Hisashi Hujita 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).

  • Patent number: 4665598
    Abstract: An eyeglass frame (10) consisting of outside and inside synthetic-resin members (20, 25), a metallic-plate core member (12) sandwiched in between the outside and inside members, the core member (12) being partly formed with a plurality of holes (16) which are filled up with colored resins (18). The outside member is composed of inner, colorless, transparent and outer, colored, opaque layers (21, 22) of which the outer layer is removed partly in the form of a window through which the colored resins (18) and the holes (16) appear as stained-glass patterns.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: May 19, 1987
    Assignee: Murai Optical Company, Ltd.
    Inventors: Masaru Murai, Hisashi Hujita, Mikio Katayama