Patents by Inventor Yoshihori Namihira

Yoshihori Namihira 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).

  • Device for switching from one light source to another
    Patent number: 4720162
    Abstract: An optical coupler is formed of at least one polarization maintaining single mode fiber, a polarizing beam splitter connected to the polarization maintaining single mode fiber, and a main optical fiber which is connected with the polarizing beam splitter at one end thereof. This optical coupler is useful as a changeover switch for a light source.
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: January 19, 1988
    Assignee: Kokusai Denshin Denwa Kabushiki Kaisha
    Inventors: Kiyofumi Mochizuki, Hiroharu Wakabayashi, Yoshihori Namihira, Hideharu Tokiwa