Patents by Inventor Kunii Hiroyuki

Kunii Hiroyuki 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 a pressing member and transfer fixing member
    Patent number: 7583922
    Abstract: For an image forming apparatus, a transfer fixing apparatus and a transfer fixing method fix a toner image onto a record medium. The fixing apparatus and the image forming apparatus have a structure to reduce adverse heat influences impacting on an intermediate transfer member, and can further reduce vibrations generated to the intermediate transfer member and to a recording medium onto which a visualized image is transferred from the intermediate transfer member. Further, a heating value and a heat distribution in the fixing apparatus can be controlled to be optimized.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: September 1, 2009
    Assignee: Ricoh Company Limited
    Inventors: Fujita Takashi, Kikuchi Hisashi, Kurotaka Shigeo, Baba Toshihiko, Echigo Katsuhiro, Nakafuji Atsushi, Ikenoue Hirokazu, Someya Yukimichi, Kunii Hiroyuki
  • Fixing apparatus with a pressing member and transfer fixing member
    Patent number: 7359666
    Abstract: For an image forming apparatus, a transfer fixing apparatus and a transfer fixing method fix a toner image onto a record medium. The fixing apparatus and the image forming apparatus have a structure to reduce adverse heat influences impacting on an intermediate transfer member, and can further reduce vibrations generated to the intermediate transfer member and to a recording medium onto which a visualized image is transferred from the intermediate transfer member. Further, a heating value and a heat distribution in the fixing apparatus can be controlled to be optimized.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: April 15, 2008
    Assignee: Ricoh Company Limited
    Inventors: Fujita Takashi, Kikuchi Hisashi, Kurotaka Shigeo, Baba Toshihiko, Echigo Katsuhiro, Nakafuji Atsushi, Ikenoue Hirokazu, Someya Yukimichi, Kunii Hiroyuki
  • Transfer fixing apparatus, fixing apparatus, toner image forming apparatus, method, and record medium recycled method
    Publication number: 20060120776
    Abstract: For an image forming apparatus, a transfer fixing apparatus and a transfer fixing method fix a toner image onto a record medium. The fixing apparatus and the image forming apparatus have a structure to reduce adverse heat influences impacting on an intermediate transfer member, and can further reduce vibrations generated to the intermediate transfer member and to a recording medium onto which a visualized image is transferred from the intermediate transfer member. Further, a heating value and a heat distribution in the fixing apparatus can be controlled to be optimized.
    Type: Application
    Filed: January 26, 2006
    Publication date: June 8, 2006
    Inventors: Fujita Takashi, Kikuchi Hisashi, Kurotaka Shigeo, Baba Toshihiko, Echigo Katsuhiro, Nakafuji Atsushi, Ikenoue Hirokazu, Someya Yukimichi, Kunii Hiroyuki
  • Transfer fixing apparatus
    Patent number: 7031648
    Abstract: A transfer fixing apparatus including an intermediate transfer member having an outer surface onto which a toner image is transferred, a transfer fixing member having an outer surface onto which the toner image is transferred by the intermediate transfer member, a heating member configured to heat the toner image on the outer surface of the transfer fixing member, and an opposite member formed opposite the transfer fixing member. A nip is formed between the transfer fixing member and the opposite member, the toner image being fixed onto the recording medium while passing through the nip. The transfer member is separated by a space from the intermediate transfer member by a thickness of the toner image.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: April 18, 2006
    Assignee: Ricoh Company Limited
    Inventors: Fujita Takashi, Kikuchi Hisashi, Kurotaka Shigeo, Baba Toshihiko, Echigo Katsuhiro, Nakafuji Atsushi, Ikenoue Hirokazu, Someya Yukimichi, Kunii Hiroyuki
  • Transfer fixing apparatus, fixing apparatus, toner image forming apparatus, method, and record medium recycled method
    Publication number: 20040037595
    Abstract: For an image forming apparatus, a transfer fixing apparatus and a transfer fixing method fix a toner image onto a record medium. The fixing apparatus and the image forming apparatus have a structure to reduce adverse heat influences impacting on an intermediate transfer member, and can further reduce vibrations generated to the intermediate transfer member and to a recording medium onto which a visualized image is transferred from the intermediate transfer member. Further, a heating value and a heat distribution in the fixing apparatus can be controlled to be optimized.
    Type: Application
    Filed: July 7, 2003
    Publication date: February 26, 2004
    Inventors: Fujita Takashi, Kikuchi Hisashi, Kurotaka Shigeo, Baba Toshihiko, Echigo Katsuhiro, Nakafuji Atsushi, Ikenoue Hirokazu, Someya Yukimichi, Kunii Hiroyuki