Patents by Inventor Kenro Yamamoto

Kenro Yamamoto 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).

  • Patent number: 5980126
    Abstract: In an automatic film developer, measurements are taken of internal temperature parameters during a warm up phase. Based on measured temperature values a time for completing the warm up phase is calculated. The calculated time for warm up is displayed so that it can be read by an operator. When the calculated time for warm up completion has elapsed, an indication is displayed that the film developer is operational. During the warm up phase, film is not allowed to advance through the automatic film developer. When the calculated time for warm up completion has elapsed, advance of film through the film developer is automatically started.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: November 9, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kenro Yamamoto, Seiichi Yoshizawa, Ryoei Nozawa, Akira Sugiyama
  • Patent number: 5675913
    Abstract: A photosensitive material processing apparatus is equipped with a drying section in which a photosensitive material processed with a processing solution is conveyed by a plurality of rollers and dried by drying air from a drying air blowing device. In the photosensitive material processing apparatus, a plurality of heating rollers is disposed to form a part of the above-described plurality of rollers and whose surfaces are heated by a heat source. A control means effects on-off control for the heat source during processing of the photosensitive material to set the surface temperature of each of the plurality of heating rollers and to control the drying air blowing device to lower the surface temperature of each of the plurality of heating rollers by the drying air during a standby period. Accordingly, during the standby period, the surface temperature of each of the plurality of heating rollers is lowered forcibly by the drying air, so that overshooting is restricted.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: October 14, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinichi Matsuda, Ryouei Nozawa, Jun Ikeda, Kenro Yamamoto, Mitsuru Katsumata
  • Patent number: 5421097
    Abstract: In a temperature control method of a photosensitive material drying device relating to the present invention, a photosensitive material is heated and dried by drying air heated by a heating device. A temperature of a member heated by the drying air is detected, and operation of the heating device is controlled so that the temperature of the member is maintained within a predetermined range.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: June 6, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kenro Yamamoto, Kazuyuki Kagawa, Yasuhiro Kawai