Patents by Inventor Hiroaki Miyake

Hiroaki Miyake 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).

  • Image forming apparatus with rotatable member press-contacted to image bearing member
    Patent number: 5432590
    Abstract: An image forming apparatus includes an image bearing member movable along an endless path; a helical gear, adjacent an end of the image bearing member, for transmitting a driving force to the image bearing member; a rotatable member contributable to image formation on the image bearing member and having a shaft urged toward the image bearing member; driving means for driving the shaft; and a coupler disposed between the driving means and the shaft of the rotatable member, and effective to transmit rotational force in a direction of the shaft substantially without transmitting force in a radial direction of the rotatable member.
    Type: Grant
    Filed: August 9, 1994
    Date of Patent: July 11, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiya Nomura, Hiroaki Miyake, Yoshiro Tsuchiya
  • Image forming apparatus having re-feeding unit
    Patent number: 5384619
    Abstract: The present invention provides an image forming apparatus with a supply roller for supplying a sheet, a supply path for directing the sheet to an image forming section, a sheet ejecting path for the sheet on which an image is formed at the image forming section toward an ejecting section, a space integrally formed in a lower part of a body of the image forming apparatus, a branch path branched from the sheet ejecting path and adapted to direct the sheet toward the space, an introduction path for directing the sheet from the space to the supply path, and a sheet re-feeing unit removable with respect to the body of the image forming apparatus and including a sheet re-feeding path having an entrance facing the branch path and an exit facing the introduction path.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: January 24, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takao Yokomizo, Hiroo Kobayashi, Tadashi Yagi, Hiroshi Yukimachi, Takahiro Azeda, Yoshiro Tsuchiya, Toshifumi Moritani, Masahito Ohtsuka, Tsuyoshi Waragai, Hiroaki Miyake
  • Charging device, process unit having same and image forming apparatus using process unit
    Patent number: 5272505
    Abstract: A charging apparatus includes a charging member contactable to a member to be charged to charge the member to be charged; a power source for supplying a voltage between the charging member and the member to be charged; and a conductive member for covering a contact portion between the charging member and the member to be charged, the conductive member being electrically grounded.
    Type: Grant
    Filed: October 22, 1991
    Date of Patent: December 21, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuo Shishido, Yasushi Sato, Shinichi Sasaki, Hiroaki Miyake, Yoshiya Nomura
  • Image forming system and process cartridge removably mountable on same
    Patent number: 5258811
    Abstract: An image forming system having an image bearing member and a developer bearing member. Developer bearing member is biased toward the image bearing member by using the weight of a developing device. A tension spring for reducing an urging force of the developer bearing member against the image forming member is provided.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: November 2, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroaki Miyake, Hiroo Kobayashi, Yoshiya Nomura
  • Image forming apparatus with plural forming units
    Patent number: 5115281
    Abstract: The present invention provides an image forming apparatus having a first image forming unit incorporating an image formation processing device therein, a sheet supply station for feeding a sheet to the first image forming unit, and a sheet ejecting station for ejecting the sheet on which an image is formed by the first image forming unit out of the image forming apparatus. Wherein a second image forming unit having the same function and size as those of the first image forming unit is mounted within the image forming apparatus and a sheet inlet of the second image forming unit is directly connected to the sheet ejecting station.
    Type: Grant
    Filed: September 5, 1990
    Date of Patent: May 19, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahito Ohtsuka, Hiroo Kobayashi, Toshifumi Moritani, Tadashi Yagi, Yoshiro Tsuchiya, Takahiro Azeta, Tsuyoshi Waragai, Hiroshi Yukimachi, Hiroaki Miyake
  • Image forming apparatus comprising lateral movement means
    Patent number: 5091754
    Abstract: This invention relates to an image forming apparatus having a convey path comprising lateral movement apparatus for controlling a widthwise position of a sheet member to be conveyed, wherein the lateral movement apparatus is curved in a convey direction.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: February 25, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Abe, Junichi Kimizuka, Akihisa Kusano, Kaoru Sato, Toshiyuki Ito, Kazuhiko Okazawa, Toshihiko Inuyama, Takahiro Azeta, Yoshiro Tsuchiya, Hiroshi Yukimachi, Tadashi Yagi, Hiroo Kobayashi, Masahito Otsuka, Tsuyoshi Waragai, Takamasa Sawada, Hiroaki Miyake, Toshifumi Moritani