Patents by Inventor Yasuo Yonei

Yasuo Yonei 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).

  • Patent number: 8362670
    Abstract: A plurality of stator teeth 2 are arranged at a constant interval in a circumferential direction on the inner circumferential face side or the outer circumferential face side of a ring-shaped stator core 1 that is made of a plurality of steel plates. The winding wire 5 is wound about the stator teeth. An insulator 4 that electrically insulates the stator core and the winding wire is provided therebetween. A gap 6 is formed between the winding wire and the insulator. Accordingly, a desired distance can be secured between the stator teeth and the winding wire regardless of the thickness of the insulator, and, thus, the influence of leakage magnetic fluxes that acts on the winding wire can be reduced. Accordingly, the influence of leakage magnetic fluxes formed near the stator teeth that acts on the winding wire can be reduced regardless of the thickness of the insulator.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: January 29, 2013
    Assignee: Panasonic Corporation
    Inventors: Takashi Ogawa, Yuichi Yoshikawa, Yasuo Yonei, Yasuji Echizen, Masahiko Kobayashi
  • Patent number: 8067870
    Abstract: The motor of the invention is an outer rotor type motor, and a rotor includes a cylindrical rotor frame that is opened at one end thereof in an axial direction, and a hollow cylindrical magnet attached to an inner periphery of the rotor frame. The magnet has a joining portion joined to an inside cylindrical portion of the rotor frame, and a protruding portion that further protrudes in the axial direction from one end, the outer diameter of the protruding portion is larger than the inner diameter of the rotor frame, and the joining portion is directly brought into close contact with a portion ranging from the one end to at least a portion of the inside cylindrical portion.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: November 29, 2011
    Assignee: Panasonic Corporation
    Inventors: Masahiko Kobayashi, Yasuo Yonei, Tooru Nakamaru, Norihito Yasuda, Hiroki Asai, Hiroyuki Asai, Kouji Wada
  • Publication number: 20110018382
    Abstract: A plurality of stator teeth 2 are arranged at a constant interval in a circumferential direction on the inner circumferential face side or the outer circumferential face side of a ring-shaped stator core 1 that is made of a plurality of steel plates. The winding wire 5 is wound about the stator teeth. An insulator 4 that electrically insulates the stator core and the winding wire is provided therebetween. A gap 6 is formed between the winding wire and the insulator. Accordingly, a desired distance can be secured between the stator teeth and the winding wire regardless of the thickness of the insulator, and, thus, the influence of leakage magnetic fluxes that acts on the winding wire can be reduced. Accordingly, the influence of leakage magnetic fluxes formed near the stator teeth that acts on the winding wire can be reduced regardless of the thickness of the insulator.
    Type: Application
    Filed: July 1, 2010
    Publication date: January 27, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Takashi OGAWA, Yuichi YOSHIKAWA, Yasuo YONEI, Yasuji ECHIZEN, Masahiko KOBAYASHI
  • Publication number: 20100033050
    Abstract: The motor of the invention is an outer rotor type motor, and a rotor includes a cylindrical rotor frame that is opened at one end thereof in an axial direction, and a hollow cylindrical magnet attached to an inner periphery of the rotor frame. The magnet has a joining portion joined to an inside cylindrical portion of the rotor frame, and a protruding portion that further protrudes in the axial direction from one end, the outer diameter of the protruding portion is larger than the inner diameter of the rotor frame, and the joining portion is directly brought into close contact with a portion ranging from the one end to at least a portion of the inside cylindrical portion.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 11, 2010
    Inventors: Masahiko Kobayashi, Yasuo Yonei, Tooru Nakamaru, Norihito Yasuda, Hiroki Asai, Hiroyuki Asai, Kouji Wada