Patents by Inventor Tsuyoshi Takeda

Tsuyoshi Takeda 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).

  • Lens-fitted film unit
    Patent number: 6341200
    Abstract: A lens-fitted film unit includes: a main body; a photographic lens provided in the main body, having an aperture value; an aperture provided in the main body; a shutter provided in the main body, having a shutter speed; a photographic film loaded in the main body, having image frames each including an unexposed portion and a pre-exposed portion on which a latent image has been formed; and a masking member for masking the pre-exposed portion of the photographic film when a photographing operation is conducted. The latent image has been formed on the photographic film with a same exposure amount as that obtained when an object to be photographed having a brightness of not less than 10 and not more than 12.5 in terms of light values in which a photographic film whose ISO sensitivity is 100, is exposed to light with an aperture value of the photographic lens set by the aperture and with the shutter speed of the shutter.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: January 22, 2002
    Assignee: Konica Corporation
    Inventors: Kazuhiro Nakanishi, Kunikazu Takano, Hiroshi Kibayashi, Hiromi Nakanishi, Tetsufumi Takaba, Wataru Hiroshima, Tsuyoshi Takeda, Akira Aoki, Kanichi Onda