Patents by Inventor Masanobu SUNABATA

Masanobu SUNABATA 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).

  • Rotor and rotor manufacturing method
    Patent number: 11611269
    Abstract: The rotor includes a drive shaft, a first rotor core unit, and a second rotor core unit. The first rotor core unit is configured from a first iron core material having a through-hole into which the drive shaft is inserted, and a plurality of first permanent magnets, and includes a first reference surface at which the first iron core material is flush with or protruding further than first permanent magnets. The second rotor core unit is configured from a second iron core material having a through-hole into which the drive shaft is inserted, and a plurality of second permanent magnets, and has a second reference surface at which the second iron core material is flush with or protruding further than second permanent magnets, the second rotor core unit being laminated in an axial direction on the first rotor core unit such that the first reference surface and the second reference surface contact each other.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: March 21, 2023
    Assignees: KYB Corporation, TOP Co., Ltd.
    Inventors: Sayaka Ueno, Hiroyuki Miyoshi, Masanobu Sunabata
  • ROTOR AND ROTOR MANUFACTURING METHOD
    Publication number: 20200195105
    Abstract: The rotor includes a drive shaft, a first rotor core unit, and a second rotor core unit. The first rotor core unit is configured from a first iron core material having a through-hole into which the drive shaft is inserted, and a plurality of first permanent magnets, and includes a first reference surface at which the first iron core material is flush with or protruding further than first permanent magnets. The second rotor core unit is configured from a second iron core material having a through-hole into which the drive shaft is inserted, and a plurality of second permanent magnets, and has a second reference surface at which the second iron core material is flush with or protruding further than second permanent magnets, the second rotor core unit being laminated in an axial direction on the first rotor core unit such that the first reference surface and the second reference surface contact each other.
    Type: Application
    Filed: December 3, 2019
    Publication date: June 18, 2020
    Applicants: KYB CORPORATION, TOP CO., LTD.
    Inventors: Sayaka UENO, Hiroyuki MIYOSHI, Masanobu SUNABATA