Patents by Inventor Motoaki Fujimoto

Motoaki Fujimoto 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).

  • Axial gap motor with magnetically securely coupled stator cores and pump device
    Patent number: 8917007
    Abstract: Disclosed are a single rotor-type axial gap motor with low magnetic loss and high output, and a pump device using the axial gap motor. A first contact surface (231) is provided on the lateral surface in one circumferential direction of a yoke strip (23), and a second contact surface (232) is provided on the lateral surface in the other circumferential direction of the yoke strip (23), wherein the first contact surface (231) and the second contact surface (232) are aligned with each other. Defining As1 and As2 as the surface areas (As) of the first and second contact surfaces (231, 232), and Ap1 and Ap2 as the projected surface areas (Ap) of the lateral surfaces of the aforementioned yoke strip seen from the circumferential direction, it holds that As>Ap.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: December 23, 2014
    Assignee: Fujitsu General Limited
    Inventors: Hirokazu Matsuzaki, Ken Maeyama, Motoaki Fujimoto, Tomonori Kojima
  • AXIAL GAP MOTOR AND PUMP DEVICE
    Publication number: 20120263612
    Abstract: Disclosed are a single rotor-type axial gap motor with low magnetic loss and high output, and a pump device using the axial gap motor. A first contact surface (231) is provided on the lateral surface in one circumferential direction of a yoke strip (23), and a second contact surface (232) is provided on the lateral surface in the other circumferential direction of the yoke strip (23), wherein the first contact surface (231) and the second contact surface (232) are aligned with each other. Defining As1 and As2 as the surface areas (As) of the first and second contact surfaces (231, 232), and Ap1 and Ap2 as the projected surface areas (Ap) of the lateral surfaces of the aforementioned yoke strip seen from the circumferential direction, it holds that As>Ap.
    Type: Application
    Filed: September 1, 2010
    Publication date: October 18, 2012
    Applicant: FUJITSU GENERAL LIMITED
    Inventors: Hirokazu Matsuzaki, Ken Maeyama, Motoaki Fujimoto, Tomonori Kojima