Patents by Inventor Michihiro Shibamoto

Michihiro Shibamoto 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).

  • Induction motor
    Patent number: 6819026
    Abstract: A radial-air-gap induction motor is constituted so as to have two air gaps by setting a rotor between a cylindrical outer stator and inner stator in order to improve an efficiency by increasing the ratio of torque/(square of current) by a two air gaps, apply windings for generating a rotating magnetic field to the outer and inner stators, and form squirrel-cage windings on the rotor.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: November 16, 2004
    Assignee: Fujitsu General Limited
    Inventors: Kenji Narita, Takushi Fujioka, Yusuke Kikuchi, Akihiro Ito, Youichi Tanabe, Yuji Souma, Ken Maeyama, Michihiro Shibamoto, Nopporn Jirojjaturonn, Chanaporn Thanathitipong
  • Induction motor
    Patent number: 6809453
    Abstract: In an axial-air-gap induction motor which has a disk-shaped stator and rotor placed coaxially around a rotating shaft with their surfaces opposing each other across a predetermined gap, the stator and rotor are each composed of a disk-shaped yoke and teeth fitted and secured in the yoke, making it easy to fasten the stator to the bracket, and the rotor to the rotating shaft, as well as to mount windings in the stator core and rotor core.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: October 26, 2004
    Assignee: Fujitsu General Limited
    Inventors: Kenji Narita, Takushi Fujioka, Youichi Tanabe, Nopporn Jirojjaturonn, Chanaporn Thanathitipong, Akihiro Ito, Michihiro Shibamoto
  • Induction motor
    Publication number: 20040061396
    Abstract: In an axial-air-gap induction motor which has a disk-shaped stator and rotor placed coaxially around a rotating shaft with their surfaces opposing each other across a predetermined gap, the stator and rotor are each composed of a disk-shaped yoke and teeth fitted and secured in the yoke, making it easy to fasten the stator to the bracket, and the rotor to the rotating shaft, as well as to mount windings in the stator core and rotor core.
    Type: Application
    Filed: July 10, 2003
    Publication date: April 1, 2004
    Applicant: Fujitsu General Limited
    Inventors: Kenji Narita, Takushi Fujioka, Youichi Tanabe, Nopporn Jirojjaturonn, Chanaporn Thanathitipong, Akihiro Ito, Michihiro Shibamoto
  • Induction motor
    Publication number: 20030201686
    Abstract: A radial-air-gap induction motor is constituted so as to have a tow-layer air gap by setting a rotor between a cylindrical outer stator and inner stator in order to improve an efficiency by increasing the ratio of torque/(square of current) by a two-layer air-gap structure, apply a winding for generating a rotating magnetic field to the outer and inner stators, and form a squirrel-cage winding on the rotor.
    Type: Application
    Filed: April 15, 2003
    Publication date: October 30, 2003
    Applicant: FUJITSU GENERAL LIMITED
    Inventors: Kenji Narita, Takushi Fujioka, Yusuke Kikuchi, Akihiro Ito, Youichi Tanabe, Yuji Souma, Ken Maeyama, Michihiro Shibamoto, Nopporn Jirojjaturonn, Chanaporn Thanathitipong