Patents by Inventor Ichirho Ohosuga

Ichirho Ohosuga 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).

  • DC-DC converter
    Patent number: 4839786
    Abstract: A DC-DC converter of simple arrangement that effectively utilizes a negative voltage to improve loss of power. This DC-DC converter is suitable as a dc power source for an electronic flash of a camera.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: June 13, 1989
    Assignee: Minicam Research Corporation
    Inventor: Ichirho Ohosuga