Patents by Inventor Katsumi Ogisako

Katsumi Ogisako 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).

  • Strobe light and photographic camera incorporating the same
    Patent number: 5842047
    Abstract: A strobe light which emits light by supplying a flash discharge tube with the electric charge stored in a main capacitor uses an aluminum-electrolytic capacitor having a dissipation factor (tan.delta.) of 0.03 or lower, and has voltage controlling means for setting the charge completion voltage of the aluminum-electrolytic capacitor at a predetermined value within 265.+-.35 V.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: November 24, 1998
    Assignee: West Electric Company, Ltd.
    Inventors: Hisashi Ogura, Katsumi Ogisako