Patents by Inventor Yasutaka OBA

Yasutaka OBA 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).

  • Method of manufacturing rotating body
    Patent number: 11469653
    Abstract: A method of manufacturing a rotating body includes disposing an end plate on an end surface of the core body in a height direction, and forming the rotating body by welding the end plate and the core body together. The rotating body is formed by welding the end plate and the core body together while a temperature of the core body and the end plate is within a predetermined operational a temperature range associated with rotation of the rotating body in a manufactured state of operation.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: October 11, 2022
    Inventors: Kenji Katsuki, Takashi Fukumoto, Yasutaka Oba, Go Kato, Masashi Matsumoto
  • Method of manufacturing core product, and core product
    Patent number: 11374474
    Abstract: A method of manufacturing a core product includes injecting molten resin into a resin injection portion provided in a core body so as to extend in a longitudinal direction of the core body, and forming a core product by welding the core body. A buffer region is set between the resin injection portion and a periphery of the core body in a lateral direction of the core body. The core product is formed by welding the core body so that a weld bead formed on the core body is prohibited from reaching the buffer region, and so that the weld bead is spaced apart from the resin injection portion in the lateral direction of the core body.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: June 28, 2022
    Inventors: Kenji Katsuki, Takashi Fukumoto, Yasutaka Oba, Go Kato
  • METHOD OF MANUFACTURING CORE PRODUCT, AND CORE PRODUCT
    Publication number: 20200412213
    Abstract: A method of manufacturing a core product includes injecting molten resin into a resin injection portion provided in a core body so as to extend in a longitudinal direction of the core body, and forming a core product by welding the core body. A buffer region is set between the resin injection portion and a periphery of the core body in a lateral direction of the core body. The core product is formed by welding the core body so that a weld bead formed on the core body is prohibited from reaching the buffer region, and so that the weld bead is spaced apart from the resin injection portion in the lateral direction of the core body.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 31, 2020
    Inventors: Kenji KATSUKI, Takashi FUKUMOTO, Yasutaka OBA, Go KATO
  • METHOD OF MANUFACTURING ROTATING BODY
    Publication number: 20200412212
    Abstract: A method of manufacturing a rotating body includes disposing an end plate on an end surface of the core body in a height direction, and forming the rotating body by welding the end plate and the core body together. The rotating body is formed by welding the end plate and the core body together while a temperature of the core body and the end plate is within a predetermined operational a temperature range associated with rotation of the rotating body in a manufactured state of operation.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 31, 2020
    Inventors: Kenji KATSUKI, Takashi FUKUMOTO, Yasutaka OBA, Go KATO, Masashi MATSUMOTO
  • Laminated core and method for manufacturing the same
    Patent number: 10686339
    Abstract: A laminated core includes: a laminate in which 1st to Nth (N is a natural number of two or more) core members are laminated in this order; and a distinguishing mark formed with a marking that is placed on a peripheral surface of the laminate so as to be continuously positioned over all of the 1st to Nth core members.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: June 16, 2020
    Assignee: Mitsui High-tec, Inc.
    Inventors: Go Kato, Yasutaka Oba
  • LAMINATED CORE AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20180006509
    Abstract: A laminated core includes: a laminate in which 1st to Nth (N is a natural number of two or more) core members are laminated in this order; and a distinguishing mark formed with a marking that is placed on a peripheral surface of the laminate so as to be continuously positioned over all of the 1st to Nth core members.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 4, 2018
    Inventors: Go KATO, Yasutaka OBA