Patents by Inventor Kenji Koyata

Kenji Koyata 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).

  • Structure of a light-receiving end portion of an endoscope light guide
    Patent number: 4350150
    Abstract: A light-receiving end structure of an endoscope light guide comprises the illumination light-receiving end plane formed on an illumination light-receiving end portion of the light guide, an adhesive agent applied to the illumination light-receiving end portion to bond together optical fibers constituting the end portion, a transparent heat-resistant disc member mounted on the illumination light-receiving end plane, and a metal support surrounding the light-receiving end portion and the disc member in a liquid-tight state. The heat generated by light beams irradiated on the light-receiving end plane is conducted through the disc member to the support and then released into the open air. Therefore, the light-receiving end portion is not exposed to a high temperature. Accordingly, the light-receiving end structure is prominently increased in effective life.
    Type: Grant
    Filed: September 16, 1980
    Date of Patent: September 21, 1982
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Tetsumaru Kubota, Kenji Koyata