Patents by Inventor Naoki Fukai

Naoki Fukai 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).

  • Laser beam welding method and apparatus
    Publication number: 20080245776
    Abstract: While steel sheets are positioned and held by a holding mechanism, a first laser beam is applied to a heating region of the steel sheet to space the steel sheet from the other steel sheet by a predetermined distance. A second laser beam is applied to a welding region to weld the steel sheets. An amount of heat applied by the first laser beam, a moving speed of the first laser beam, and a focused spot diameter of the first laser beam are set to keep the sheet irradiated with the first laser beam in an unmelted state and plastically deform the sheet.
    Type: Application
    Filed: April 30, 2008
    Publication date: October 9, 2008
    Inventors: Koji ODA, Naoki Fukai, Jun Kitagawa, Junya Tanabe, Keiji Otsuka
  • Laser beam welding method and apparatus
    Patent number: 7385157
    Abstract: While steel sheets are positioned and held by a holding mechanism, a first laser beam is applied to a heating region of the steel sheet to space the steel sheet from the other steel sheet by a predetermined distance. A second laser beam is applied to a welding region to weld the steel sheets. An amount of heat applied by the first laser beam, a moving speed of the first laser beam, and a focused spot diameter of the first laser beam are set to keep the sheet irradiated with the first laser beam in an unmelted state and plastically deform the sheet.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: June 10, 2008
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Koji Oda, Naoki Fukai, Jun Kitagawa, Junya Tanabe, Keiji Otsuka
  • Laser beam welding method and apparatus
    Publication number: 20040118818
    Abstract: While steel sheets are positioned and held by a holding mechanism, a first laser beam is applied to a heating region of the steel sheet to space the steel sheet from the other steel sheet by a predetermined distance. A second laser beam is applied to a welding region to weld the steel sheets. An amount of heat applied by the first laser beam, a moving speed of the first laser beam, and a focused spot diameter of the first laser beam are set to keep the sheet irradiated with the first laser beam in an unmelted state and plastically deform the sheet.
    Type: Application
    Filed: October 21, 2003
    Publication date: June 24, 2004
    Inventors: Koji Oda, Naoki Fukai, Jun Kitagawa, Junya Tanabe, Keiji Ostuka
  • Method of assembling vehicle body of two-wheeled vehicle and assembling apparatus therefor
    Patent number: 4811891
    Abstract: Vehicle body of a two-wheeled vehicle assembled by holding a plurality of center members on a center jig which may be movable between a setting station and a coupling station, setting side frame members on a pair of side frame jigs in a prostrate posture at a position laterally adjacent the coupling station with the side frame jigs being a jig frame formed of frame materials with spaces therebetween, welding the side frame members together by welding robots adjacent the coupling station, erecting the side jigs to position the welded side frames in position with respect to the center members on the center jig, and welding the side frames to the center members using the same welding robots extending through the spaces in the jig frame of the side frame jigs.
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: March 14, 1989
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Naoji Yamaoka, Shogo Ozawa, Naoki Fukai, Masayuki Yuzawa, Takeshi Nakamura, Yutaka Asano