Patents by Inventor Tsuyoshi Hiroshima

Tsuyoshi Hiroshima 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).

  • Stepping motor
    Publication number: 20020101120
    Abstract: A cylindrical rotor magnet is magnetized in a circumferential direction thereof. A plurality pairs of stator yokes are arranged in an axial direction of the rotor magnet so as to surround the magnet rotor. Each pair of stator yokes is associated with one phase of the motor. A case member holds the stator yokes from both sides in the axial direction of the rotor magnet. A resin member separates the pairs of stator yokes which are associated with adjacent phases of the motor. The resin member further separates the stator yokes from the case member.
    Type: Application
    Filed: January 30, 2001
    Publication date: August 1, 2002
    Inventors: Kazunori Akama, Yasuhiro Ito, Tsuyoshi Hiroshima