Patents by Inventor Kyoichi Okamoto

Kyoichi Okamoto 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).

  • Stator for a magnet motor
    Patent number: 4554474
    Abstract: A stator for a magnetic motor comprising a cylindrical yoke, at least one pair of main magnetic poles formed of permanent magnets fixed to the inner peripheral surface of the yoke, at least one pair of auxiliary magnetic poles made of a soft iron material each placed at a side portion of each of the main magnetic poles, wherein an air gap formed between the inner peripheral surface of each of the main magnetic poles and the outer peripheral surface of an armature rotatably placed at the axial center of the yoke is made greater than an air gap formed between the inner peripheral surface of each of the auxiliary magnetic poles and the outer peripheral surface of the armature.
    Type: Grant
    Filed: June 12, 1984
    Date of Patent: November 19, 1985
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Akira Morishita, Kyoichi Okamoto