Patents by Inventor Kimihiko Arakawa

Kimihiko Arakawa 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).

  • Motor stator
    Patent number: 11165300
    Abstract: An insulator includes an extended portion extended along the axial direction of a motor stator from an annular member. The extended portion includes at least one protruding portion protruding in the outer-diameter direction from a guide surface that guides a winding in the circumferential direction of a motor stator. This protruding portion includes an abutting surface capable of abutting the winding guided by the guide surface. The abutting surface includes a slant portion that comes close to the annular member toward the outer-diameter direction. The slant portion is capable of abutting a semicircular portion of the winding with the circular cross-sectional shape at the outer-diameter side.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: November 2, 2021
    Assignee: YAMADA MANUFACTURING CO., LTD.
    Inventors: Satoshi Watanabe, Masahiko Hoshino, Kimihiko Arakawa
  • MOTOR STATOR
    Publication number: 20200313485
    Abstract: An insulator includes an extended portion extended along the axial direction of a motor stator from an annular member. The extended portion includes at least one protruding portion protruding in the outer-diameter direction from a guide surface that guides a winding in the circumferential direction of a motor stator. This protruding portion includes an abutting surface capable of abutting the winding guided by the guide surface. The abutting surface includes a slant portion that comes close to the annular member toward the outer-diameter direction. The slant portion is capable of abutting a semicircular portion of the winding with the circular cross-sectional shape at the outer-diameter side.
    Type: Application
    Filed: January 9, 2020
    Publication date: October 1, 2020
    Inventors: Satoshi Watanabe, Masahiko Hoshino, Kimihiko Arakawa