Patents by Inventor Syunsuke Yasunori

Syunsuke Yasunori 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).

  • Apparatus for driving a compressor and a refrigerating air conditioner
    Patent number: 7437882
    Abstract: An apparatus for driving a compressor comprises a compressor having a compression mechanism part for sucking a fluid to compress the same, and an electric motor for driving the compression mechanism part, and an inverter device for driving the electric motor at variable speeds. The electric motor comprises a self-starting type electric motor having a rotor, which comprises a cage conductor and a polarized permanent magnet, and the inverter device comprises a plurality of semiconductor switches for controlling drive frequencies of the electric motor.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: October 21, 2008
    Assignee: Hitachi Air Conditioning Systems Co., Ltd.
    Inventors: Mutsunori Matsunaga, Kenji Tojo, Yoshikatsu Tomita, Susumu Nakayama, Syunsuke Yasunori
  • Scroll fluid machine
    Patent number: 7021912
    Abstract: A second frame is arranged between a first frame and an orbiting scroll, and a central space and an outer peripheral space are sealed off by a seal portion, which is formed between an end surface of a shaft support of the orbiting scroll and the second frame. Also, a balance weight is arranged in a space between an underside of the second frame and the first frame. Thereby, most of an oil having lubricated respective shaft supports flows into the space below the second frame, and the oil accumulated in the space is discharged through an oil scavenge pipe into an oil reservoir in a lower portion of a closed vessel. Also, since the balance weight can be assembled from a side of the orbiting scroll in a state, in which the second frame is removed, it is possible to mount the balance weight close to the orbiting scroll.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: April 4, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Tsuchiya, Takao Mizuno, Mutsunori Matsunaga, Masaru Ohtahara, Syunsuke Yasunori, Isao Hayase, Isamu Tsubono, Kazuyuki Fujimura
  • Apparatus for driving a compressor and a refrigerating air conditioner
    Publication number: 20050268631
    Abstract: An apparatus for driving a compressor comprises a compressor having a compression mechanism part for sucking a fluid to compress the same, and an electric motor for driving the compression mechanism part, and an inverter device for driving the electric motor at variable speeds. The electric motor comprises a self-starting type electric motor having a rotor, which comprises a cage conductor and a polarized permanent magnet, and the inverter device comprises a plurality of semiconductor switches for controlling drive frequencies of the electric motor.
    Type: Application
    Filed: May 13, 2005
    Publication date: December 8, 2005
    Inventors: Mutsunori Matsunaga, Kenji Tojo, Yoshikatsu Tomita, Susumu Nakayama, Syunsuke Yasunori
  • Apparatus for driving a compressor and a refrigerating air conditioner
    Patent number: 6925824
    Abstract: An apparatus for driving a compressor comprises a compressor having a compression mechanism part for sucking a fluid to compress the same, and an electric motor for driving the compression mechanism part, and an inverter device for driving the electric motor at variable speeds. The electric motor comprises a self-starting type electric motor having a rotor, which comprises a cage conductor and a polarized permanent magnet, and the inverter device comprises a plurality of semiconductor switches for controlling drive frequencies of the electric motor.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: August 9, 2005
    Inventors: Mutsunori Matsunaga, Kenji Tojo, Yoshikatsu Tomita, Susumu Nakayama, Syunsuke Yasunori
  • Scroll fluid machine
    Publication number: 20040219048
    Abstract: A second frame is arranged between a first frame and an orbiting scroll, and a central space and an outer peripheral space are sealed off by a seal portion, which is formed between an end surface of a shaft support of the orbiting scroll and the second frame. Also, a balance weight is arranged in a space between an underside of the second frame and the first frame. Thereby, most of an oil having lubricated respective shaft supports flows into the space below the second frame, and the oil accumulated in the space is discharged through an oil scavenge pipe into an oil reservoir in a lower portion of a closed vessel. Also, since the balance weight can be assembled from a side of the orbiting scroll in a state, in which the second frame is removed, it is possible to mount the balance weight close to the orbiting scroll.
    Type: Application
    Filed: September 8, 2003
    Publication date: November 4, 2004
    Inventors: Takeshi Tsuchiya, Takao Mizuno, Mutsunori Matsunaga, Masaru Ohtahara, Syunsuke Yasunori, Isao Hayase, Isamu Tsubono, Kazuyuki Fujimura
  • Apparatus for driving a compressor and a refrigerating air conditioner
    Publication number: 20040159115
    Abstract: An apparatus for driving a compressor comprises a compressor having a compression mechanism part for sucking a fluid to compress the same, and an electric motor for driving the compression mechanism part, and an inverter device for driving the electric motor at variable speeds. The electric motor comprises a self-starting type electric motor having a rotor, which comprises a cage conductor and a polarized permanent magnet, and the inverter device comprises a plurality of semiconductor switches for controlling drive frequencies of the electric motor.
    Type: Application
    Filed: September 8, 2003
    Publication date: August 19, 2004
    Inventors: Mutsunori Matsunaga, Kenji Tojo, Yoshikatsu Tomita, Susumu Nakayama, Syunsuke Yasunori