Patents by Inventor Kaoru KOGA

Kaoru KOGA 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 with divided cores connected circumferentially
    Patent number: 11456629
    Abstract: A stator core is configured by assembling divided cores in an annular shape. Each core includes a yoke part extending in a circumferential direction, and having opposite first and second facing sections. The first facing section includes an inner circumferential protrusion, an outer circumferential protrusion, and a central recess. The second facing section includes an inner circumferential notch, an outer circumferential notch, and a central protrusion. When the cores are assembled, the inner circumferential protrusion faces the inner circumferential notch, the outer circumferential protrusion faces the outer circumferential notch, and the central recess faces the central protrusion, and the outer circumferential protrusion is formed so as to have a width larger in a direction orthogonal to a circumference direction than that of the inner circumferential protrusion.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: September 27, 2022
    Assignee: KYOCERA INDUSTRIAL TOOLS CORPORATION
    Inventors: Yoshinari Sato, Yoshimu Tanimoto, Kaoru Koga
  • STATOR CORE, METHOD FOR MANUFACTURING STATOR CORE
    Publication number: 20210119498
    Abstract: A stator core is configured by assembling divided cores in an annular shape. Each core includes a yoke part extending in a circumferential direction, and having opposite first and second facing sections. The first facing section includes an inner circumferential protrusion, an outer circumferential protrusion, and a central recess. The second facing section includes an inner circumferential notch, an outer circumferential notch, and a central protrusion. When the cores are assembled, the inner circumferential protrusion faces the inner circumferential notch, the outer circumferential protrusion faces the outer circumferential notch, and the central recess faces the central protrusion, and the outer circumferential protrusion is formed so as to have a width larger in a direction orthogonal to a circumference direction than that of the inner circumferential protrusion.
    Type: Application
    Filed: November 28, 2018
    Publication date: April 22, 2021
    Inventors: Yoshinari SATO, Yoshimu TANIMOTO, Kaoru KOGA