Patents by Inventor Shuuji Hasegawa

Shuuji Hasegawa 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).

  • Scroll compressor having a movable auxiliary portion with contact plane of a stopper portion to contact a pane of the fixed scroll through elastic pressure of high pressure fluid
    Patent number: 7163386
    Abstract: A scroll compressor has a movable auxiliary member provided by mounting it between a frame member and a circling scroll member. The movable auxiliary member has a stopper portion for causing a contact plane to contact a pane of a fixed scroll member and a ring portion having an opposed plane annularly formed to face the pane of the circling scroll member, is further supported elastically by an elastic support in a state of being energized in a direction of the circling scroll member, has the contact plane of the stopper portion caused to contact the pane in this elastic support state to keep a limit position with the opposed plane facing the pane of the circling scroll member, and goes back elastically to the frame member side when the circling scroll member goes back to the frame member side and the pane is pressed to contact the opposed plane.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: January 16, 2007
    Assignee: Hitachi Appliances, Inc.
    Inventors: Takeshi Tsuchiya, Yuuichi Yanagase, Kazuyuki Fujimura, Makoto Aoki, Shigekazu Nozawa, Mutsunori Matsunaga, Satoshi Nakamura, Masaru Ohtahara, Shuuji Hasegawa, Yoshinobu Yosuke
  • Scroll compressor
    Publication number: 20050226755
    Abstract: The scroll compressor has a frame member 150, a fixed scroll member 110 and a circling scroll member 120 provided in an airtight container 100 and compresses a fluid by change in capacity of a compression space 130 comprised of the fixed scroll member and circling scroll member, where a movable auxiliary member 151 is provided by mounting it on a frame member between the frame member and the circling scroll member.
    Type: Application
    Filed: February 25, 2005
    Publication date: October 13, 2005
    Inventors: Takeshi Tsuchiya, Yuuichi Yanagase, Kazuyuki Fujimura, Makoto Aoki, Shigekazu Nozawa, Mutsunori Matsunaga, Satoshi Nakamura, Masaru Ohtahara, Shuuji Hasegawa, Yoshinobu Yosuke