Patents by Inventor Masamichi Hirooka

Masamichi Hirooka 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).

  • Autofocus camera having automatic focus adjustment apparatus
    Patent number: 4853731
    Abstract: An autofocus camera has a photographing lens, a shutter normally urged in a shutter opening direction and arranged to be opened and closed after it has once been closed prior to a photographing operation, a mirror movable between a view position which allows light passing through the lens and the shutter to be transmitted to a viewfinder optical system and an exposure position which allows light passing through the photographing lens and the shutter to be transmitted to the surface of a film, and an automatic focus adjustment apparatus for automatically adjusting the position of the lens.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: August 1, 1989
    Assignee: Kyocera Corporation
    Inventors: Masao Tsujimura, Masamichi Hirooka, Kazuo Ishikawa, Takayoshi Morooka, Masaki Noda, Mamoru Akiyama, Nobuaki Murai, Seiji Yoshikawa