Patents by Inventor Kazuaki Ono

Kazuaki Ono 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).

  • Charging device, image forming apparatus and detachably mountable process cartridge having a constant voltage power source feature
    Patent number: 5412455
    Abstract: A charging device includes a member to be charged; a charging member, provided connectable to the member to be charged, for charging the member to be a power source for supplying the oscillating voltage to the charging member; a constant voltage element connected electrically in parallel with the portion for generating the oscillating voltage.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: May 2, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuaki Ono, Koichi Tanigawa, Akihiko Takeuchi, Hajime Motoyama, Toshio Miyamoto
  • Process cartridge and image forming apparatus including a lubricant provided on a cleaning member for cleaning an image bearing member
    Patent number: 5321482
    Abstract: An image forming system for forming an image on a recording sheet, including a rotatable image bearing member, a cleaning member contacting the image bearing member to remove toner remaining on the image bearing member, and charger means contacting the image bearing member and disposed at a downstream side of the cleaning member in a direction of movement of the image bearing member. Lubricant having a low resistance is painted on a contacting portion of the cleaning member between the image bearing member and the cleaning member.
    Type: Grant
    Filed: February 25, 1992
    Date of Patent: June 14, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideyuki Yano, Koichi Tanigawa, Akihiko Takeuchi, Hiroshi Sasame, Yasumasa Otsuka, Hiroto Hasegawa, Hideo Nanatani, Kazuaki Ono
  • Charging device having charging member, process cartridge and image forming apparatus
    Patent number: 5235386
    Abstract: A charging device including a movable member to be charged, and a charging member which is contactable to the member to be charged so as to charge the member to be charged, wherein the coefficient of dynamic friction between the member to be charged and a surface of the charging member contactable to the member to be charged is not lower than 0.4.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: August 10, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideyuki Yano, Koichi Tanigawa, Akihiko Takeuchi, Hiroshi Sasame, Yasumasa Ohtsuka, Takayasu Yuminamochi, Hiroto Hasegawa, Hideo Nanataki, Kazuaki Ono
  • Tubular flexible medical instrument
    Patent number: 4280500
    Abstract: A tubular flexible medical instrument of polytetrafluoroethylene capable of easy insertion into and extraction from body cavities. The tube has alternate solid portions and porous fibrillated portions in either a ring or spiral mode. Such a tube has sufficient rigidity to ensure easy penetration of the body cavities and yet the necessary flexibility to permit movement without damage to the cavities and with less pain to the patient.
    Type: Grant
    Filed: March 31, 1978
    Date of Patent: July 28, 1981
    Inventor: Kazuaki Ono