Patents by Inventor Yutaka Kiyono

Yutaka Kiyono 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).

  • Illuminating device for slit lamp microscopes
    Patent number: 4109999
    Abstract: An illuminating device for slit lamp microscopes wherein rays reaching an objective through a slit from a light source are so made as to be able to be directed to a position deflected from the optical axis of the objective by displacing or replacing a part of elements forming an illuminating optical system, in order that the illuminating rays may be incident upon an eyeball diagonally from above or below.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: August 29, 1978
    Assignee: Mamiya Camera Co., Ltd.
    Inventors: Yutaka Kiyono, Shigeaki Nagata, Shuichiro Shigemori, Tadashi Kishimoto, Sadao Maruyama, Katsuyoshi Arisawa