Patents by Inventor Yamamoto Naohiro

Yamamoto Naohiro 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).

  • Optical fiber device
    Patent number: 4865417
    Abstract: An optical fiber device comprises a core and a cladding, the core being made of an optical material having a refractive index n.sub.1, and the cladding being made of an optical material having a refractive index n.sub.2, the end of the optical fiber from which light radiates forming a plane that is inclined to the fiber axis by an angle .theta., a light reflective layer being formed at least on the outer periphery of said radiating end, and the two reractive indices n.sub.1 and n.sub.2 satisfying the following relation (1):n.sub.1 -n.sub.2 .gtoreq.0.01 (1).
    Type: Grant
    Filed: June 18, 1987
    Date of Patent: September 12, 1989
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yamamoto Naohiro, Shuichiro Tokuda