Patents Examined by Quana Guainger
  • Oriented foamed rotary member, and developing device using same
    Patent number: 5930570
    Abstract: There are disclosed a foamed rotary member having a surface of a foam, and a large number of cells provided in the foam and each having a prolate spheroid shape, wherein the major axis direction of the cell is along the rotation axis direction, and also a developing device using the foamed rotary member as a toner supplying rotary member.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: July 27, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiro Saito, Hiroshi Sasame, Tatsuhiko Hayakawa, Tetsuya Kobayashi, Naoki Enomoto, Tomoyuki Ohkura, Hideo Kimata