Patents by Inventor Masahiro Kionuma

Masahiro Kionuma 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 with built-in flash
    Patent number: 4893140
    Abstract: A single-lens reflex camera with a flash unit built into the camera body above the viewing pentaprism. The unit is movable from an operating position to a non-operating position, preferably enclosed in the camera body. The built-in flash unit may be automatically closed by inserting an external flash in a flash shoe. A display panel may be included on the top of the flash unit housing.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: January 9, 1990
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventors: Masato Yamamoto, Susumu Koshino, Toshimasa Yamanaka, Koji Sato, Akihiro Arai, Masahiro Kionuma