Patents by Inventor Nobuo Kishiyama

Nobuo Kishiyama 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).

  • Color image-forming apparatus adapted to stabilize contact between endless belt-like photosensitive medium and developing roller
    Patent number: 5671467
    Abstract: A color image-forming apparatus includes an endless belt-like photosensitive member stretched between and wound around a drive roller and a driven roller, and a plurality of developing rollers making contact with an outer surface of the photosensitive member. At least one flexure correction shaft is held in contact with an inner surface of the photosensitive member on the side remote from the developing rollers. With this construction, the condition of contact between each developing roller and the photosensitive member is made stable and uniform, and the developing conditions for all the colors become uniform so that a high-quality image can be obtained.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: September 23, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshikazu Katsumata, Yoshihiro Mizoguchi, Yoshiaki Ijima, Makoto Kamioka, Yoshinori Ejima, Nobuo Kishiyama, Yutaka Noda, Eiichiro Nakao