Patents by Inventor Hani Chika

Hani Chika 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).

  • Eyeglass lens with indicia and method of making same
    Patent number: 4145125
    Abstract: Eyeglass lenses ordinarily of the plastic, or hard resin, type which are tinted by means of a deep penetrating dye which becomes part of the molecular structure of the lens, are masked prior to being dipped into the dye solution to produce along a margin displaced from the optical center of the lens indicia such as the name of the wearer, or some other figure or symbol.
    Type: Grant
    Filed: July 20, 1977
    Date of Patent: March 20, 1979
    Inventor: Hani Chika