Patents by Inventor Yasuyuki Matsumoto

Yasuyuki Matsumoto 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).

  • Publication number: 20070193325
    Abstract: A hemming machine is provided with a frame, a hemming tool support structure and a swinging drive structure. The hemming tool support structure is rotatably coupled to the frame to rotate about a center rotation axis. The hemming tool support structure includes a hemming tool disposed at a first location such that the hemming tool moves towards and away from an edge part of a workpiece that is supported on a die upon rotation of the hemming tool support structure. The swinging drive structure transmits a rotational driving force to the hemming tool support structure via a releasable connection located on a side of the center rotation axis that is opposite of the hemming tool. The releasable connection is configured to release the swinging drive structure to allow further rotational movement of the hemming tool away from the die.
    Type: Application
    Filed: February 12, 2007
    Publication date: August 23, 2007
    Applicant: Nissan Motor Co., Ltd.
    Inventor: Yasuyuki Matsumoto
  • Patent number: 7082803
    Abstract: A hand transport section holds and transports a workplace grip hand for gripping and positioning a workpiece. The hand transport section mounts the workpiece grip hand on a hand mount so as to set the workpiece on a lower die. The hand transport section releases the workpiece grip hand and retracts. The hemming device hems the workpiece with the lower die and an upper die located above the lower die.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: August 1, 2006
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hidehiko Hario, Yasuyuki Matsumoto
  • Publication number: 20040206149
    Abstract: A C-type frame is movable in a direction in which the C-type frame is adjacent to and away from a workpiece having an outer panel and an inner panel assembled with each other. After the C-type frame is advanced and a pre-hemming punch is advanced by a swing cylinder provided at the C-type frame, a hemming die is raised by a lifter hydraulic cylinder provided on a lower portion of the C-type frame and a flange of the outer panel is provisionally hemmed. Then, after retreat of the pre-hemming punch following lowering of the hemming die, the hemming die is raised again and final hemming is conducted between the hemming die and the hemming punch.
    Type: Application
    Filed: May 10, 2004
    Publication date: October 21, 2004
    Applicant: NISSAN MOTOR CO., LTD
    Inventors: Hidehiko Hario, Yasuyuki Matsumoto
  • Patent number: 6739168
    Abstract: A C-shaped frame is movable in a direction in which the C-shaped frame is adjacent to and away from a workpiece having an outer panel and an inner panel assembled with each other. After the C-shaped frame is advanced and a pre-hemming punch is advanced by a swing cylinder provided at the C-shaped frame, a hemming die is raised by a lifter hydraulic cylinder provided on a lower portion of the C-shaped frame and a flange of the outer panel is provisionally hemmed. Then, after retreat of the pre-hemming punch following lowering of the hemming die, the hemming die is raised again and a final hemming is conducted between the hemming die and the hemming punch.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: May 25, 2004
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hidehiko Hario, Yasuyuki Matsumoto
  • Patent number: 6582130
    Abstract: A rolling bearing is described, which comprises an inner ring fitted onto a shaft, an outer ring fitted in the housing, a plurality of rolling elements provided interposed between the inner ring and the outer ring and a lubricant packed thereinside and which is mounted between the shaft and the housing, wherein a rust preventive film comprising an oil-repellent material is formed on at least the outer surface of the outer ring and the inner surface of the inner ring, and a bearing apparatus is also described.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: June 24, 2003
    Assignee: NSK Ltd.
    Inventors: Atsushi Yokouchi, Katsuaki Denpo, Toru Syoda, Michiharu Naka, Yasuyuki Matsumoto
  • Publication number: 20020097936
    Abstract: A rolling bearing is described, which comprises an inner ring fitted onto a shaft, an outer ring fitted in the housing, a plurality of rolling elements provided interposed between the inner ring and the outer ring and a lubricant packed thereinside and which is mounted between the shaft and the housing, wherein a rust preventive film comprising an oil-repellent material is formed on at least the outer surface of the outer ring and the inner surface of the inner ring, and a bearing apparatus is also described.
    Type: Application
    Filed: November 20, 2001
    Publication date: July 25, 2002
    Applicant: NSK LTD
    Inventors: Atsushi Yokouchi, Katsuaki Denpo, Toru Syoda, Michiharu Naka, Yasuyuki Matsumoto
  • Publication number: 20010022101
    Abstract: A C-type frame is movable in a direction in which the C-type frame is adjacent to and away from a workpiece having an outer panel and an inner panel assembled with each other. After the C-type frame is advanced and a pre-hemming punch is advanced by a swing cylinder provided at the C-type frame, a hemming die is raised by a lifter hydraulic cylinder provided on a lower portion of the C-type frame and a flange of the outer panel is provisionally hemmed. Then, after retreat of the pre-hemming punch following lowering of the hemming die, the hemming die is raised again and final hemming is conducted between the hemming die and the hemming punch.
    Type: Application
    Filed: March 14, 2001
    Publication date: September 20, 2001
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Hidehiko Hario, Yasuyuki Matsumoto
  • Patent number: 4876185
    Abstract: A photoconductive member has a support comprising aluminum as the main component and a photoconductive layer. The photoconductive layer is provided on the support and contains an amorphous material comprising silicon atoms as a matrix. The support comprises an aluminum alloy with a Fe content of 2000 ppm by weight or less.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: October 24, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuyuki Matsumoto, Keiichi Murai, Tadaji Fukuda, Kyosuke Ogawa
  • Patent number: 4702981
    Abstract: A photoconductive member has a support comprising aluminum as the main component and a photoconductive layer. The photoconductive layer is provided on the support and contains an amorphous material comprising silicon atoms as a matrix. The support comprises an aluminum alloy with a Fe content of 2000 ppm by weight or less.
    Type: Grant
    Filed: June 6, 1986
    Date of Patent: October 27, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuyuki Matsumoto, Keiichi Murai, Tadaji Fukuda, Kyosuke Ogawa