Patents by Inventor Takanori Yamaki

Takanori Yamaki 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).

  • Electrostatic recording apparatus
    Patent number: 4875063
    Abstract: A laser printer or like electrostatic recording apparatus of the type developing an electrostatic latent image provided on a photoconductive drum by toner which is conveyed by a developing roller. Various devices of the apparatus including the photoconductive drum and developing roller are separated into an upper and a lower unit which are openable away from each other. A photoconductive drum assembly including the photoconductive element and a developing assembly including the developing roller are individually detachable from a body of the apparatus. Various measures are taken to enhance stable and safe operation, miniaturization, easy maintenance, operability, service life, and image quality.
    Type: Grant
    Filed: September 1, 1987
    Date of Patent: October 17, 1989
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Idenawa, Hideaki Mochimaru, Hajime Kanda, Nobuhiro Makita, Yoshiaki Tanaka, Takahiro Yagisita, Takanori Yamaki, Takeshi Motohashi, Masayoshi Miyamoto, Hisao Ishizu, Yasuhiro Sagawa, Tadaaki Kanno, Tomoo Sankoda, Hiroshi Hosokawa, Hideo Aoki, Takami Suzuki, Hiromi Takada, Toshio Shimazaki