Patents by Inventor Masanobu Fukamachi

Masanobu Fukamachi 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).

  • Patent number: 12222665
    Abstract: A fixing device includes a fixing belt configured to heat a recording material, a pressure member configured to press the fixing belt, and a sliding member configured to be in sliding contact with an inner peripheral surface of the fixing belt and being opposed to the pressure member. The pressure member and the fixing belt form a fixing nip portion, and heat and pressure are applied to the recording material at the fixing nip portion to fix a toner image onto the recording material. The sliding member includes a plurality of protrusions on a surface of the sliding member that is in sliding contact with the inner peripheral surface of the fixing belt. The following expressions are satisfied: The fixing belt satisfies the prescribed formula.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: February 11, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuharu Toratani, Akiyoshi Shinagawa, Hiroshi Miyamoto, Daigo Matsuura, Hiroki Kawai, Ayano Ogata, Asuna Fukamachi, Masanobu Tanaka, Misa Kawashima
  • Patent number: 6264564
    Abstract: A power coupling mechanism includes a flexible disk-like plate, a ring element, first and second input plates and a driven plate. The ring element is coupled to an outer radial portion of the flexible plate. The input plates are formed of deformed sheet metal material to at least partially define a viscous fluid filled chamber that encloses a dampening mechanism. The input plates are fixed to the ring element and the flexible plate such that center and inner radial portions of the flexible plate are axially spaced from the input plates to permit axial flexing. The driven plate at least partially extends into an annular housing of the dampening mechanism and has grooves interfitting with protrusions of the annular housing to provide structural support against thrust and radial forces. An inertia element with a ring gear is preferably connected to the driven plate.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: July 24, 2001
    Assignee: Exedy Corporation
    Inventors: Hirotaka Fukushima, Koji Kajitani, Hiroyoshi Tsuruta, Masanobu Fukamachi
  • Patent number: 6149525
    Abstract: A power coupling mechanism having fluid dampening device with interfitting members which assist in the absorption and transmittance of stress due to torsion and thrust loads, thus reducing the size of a bearing supporting relatively rotatable parts.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: November 21, 2000
    Assignee: Exedy Corporation
    Inventors: Hirotaka Fukushima, Koji Kajitani, Hiroyoshi Tsuruta, Masanobu Fukamachi
  • Patent number: 5997402
    Abstract: A power coupling mechanism having fluid dampening device with interfitting members which assist in the absorption and transmittance of stress due to torsion and thrust loads, thus reducing the size of a bearing supporting relatively rotatable parts.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: December 7, 1999
    Assignee: Exedy Corporation
    Inventors: Hirotaka Fukushima, Koji Kajitani, Hiroyoshi Tsuruta, Masanobu Fukamachi
  • Patent number: 5713796
    Abstract: A flywheel assembly comprising a unitary first flywheel having a hub portion and a radial circumferential portion, the first flywheel connectable to an output shaft, a viscous fluid damping mechanism having a drive member and a driven member, the drive member connected to the first flywheel radial portion, a bearing attached to the driven member and the first flywheel hub portion providing limited rotary displacement therebetween, the bearing, the drive member and the first flywheel defining an annular fluid chamber confining the dampening mechanism, and a second flywheel removably mounted to the driven member.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: February 3, 1998
    Assignee: Exedy Corporation
    Inventor: Masanobu Fukamachi
  • Patent number: 5695035
    Abstract: A power coupling mechanism having fluid dampening device with interfitting members which assist in the absorption and transmittance of stress due to torsion and thrust loads, thus reducing the size of a bearing supporting relatively rotatable parts.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: December 9, 1997
    Assignee: Exedy Corporation
    Inventors: Hirotaka Fukushima, Koji Kajitani, Hiroyoshi Tsuruta, Masanobu Fukamachi
  • Patent number: 5617940
    Abstract: A power coupling mechanism having fluid dampening device with interfitting members which assist in the absorption and transmittance of stress due to torsion and thrust loads, thus reducing the size of a bearing supporting relatively rotatable parts.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: April 8, 1997
    Assignee: Exedy Corporation
    Inventors: Hirotaka Fukushima, Koji Kajitani, Hiroyoshi Tsuruta, Masanobu Fukamachi
  • Patent number: 5569086
    Abstract: A flywheel assembly comprises a first flywheel, a second flywheel supported on the first flywheel so as to be rotatable, a drive member connected to said first flywheel to ensure a space in which viscous fluid can be contained therebetween, a driven member connected to the second flywheel to constitute, together with the first flywheel and the drive member, a fluid chamber with which viscous fluid is filled, a coil spiring for elastically connecting the members to each other, and a viscous damper part for moving viscous fluid in the fluid chamber in response to relative rotation between both the members to create viscous resistance. The driven member has a window hole containing the coil spring and a fluid supplying path connecting with the fluid chamber from the window hole. The viscous damper part has chokes for creating viscous resistance when the first flywheel and the driven member are relatively rotated.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: October 29, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventor: Masanobu Fukamachi