Patents by Inventor Tadanori Uchidoi

Tadanori Uchidoi 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).

  • Single lens reflex camera having an electro-magnetic device
    Patent number: 4429972
    Abstract: A droppage in a power source voltage below a prescribed value is prevented by using an electro-magnetic device of low power consumption type in a single lens reflex camera, and at the same time when the power source voltage is lower than the prescribed value, an erroneous function prevent circuit is activated to make the control circuit of a camera electronically inoperative and an indication of warning is made.
    Type: Grant
    Filed: February 4, 1981
    Date of Patent: February 7, 1984
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masayoshi Yamamichi, Yukio Iura, Hiroshi Aizawa, Tadashi Ito, Tetsuya Taguchi, Tadanori Uchidoi