Patents by Inventor Kohtaro Kanai

Kohtaro Kanai 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).

  • Mounting structure for the glass in the watch case
    Patent number: 4308611
    Abstract: A mounting structure for the glass in a watch case comprising a bezel having an overhang, a plastic joint engaged with the inside of the bezel, and an inner supporting ring engaged with the bezel with the plastic joint interposed therebetween. The glass is held by the overhang of the bezel and the upper surface of the inner supporing ring at the beveled peripheral portion. The bezel or the inner supporting ring is engaged with the watch case interposing a plastic joint.
    Type: Grant
    Filed: April 20, 1979
    Date of Patent: December 29, 1981
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Kohtaro Kanai