Patents by Inventor Yuta Kuribara

Yuta Kuribara 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: 12146225
    Abstract: A method for recycling a rare earth magnet is described. The rare earth magnet has a film containing Ni on the surface thereof, and the method involves immersing the rare earth magnet in a stripping solution containing a derivative of nitrobenzene, ethylenediamine, and ammonia. This strips the Ni on the surface of the rare earth magnet without deteriorating the characteristics of the rare earth magnet, thereby improving its product yield.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: November 19, 2024
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Ko Watanabe, Kazuhito Akada, Yuta Kuribara, Yoshiyuki Hayashi
  • Publication number: 20240367451
    Abstract: Provided is a rare earth magnet, on the surface of which a coating film of an ultraviolet cured resin is formed by covering the surface of the rare earth magnet with an ultraviolet curable resin composition and subsequently curing the ultraviolet curable resin composition by irradiating the ultraviolet curable resin composition with ultraviolet light. With respect to this rare earth magnet, the coating film is formed by a method which comprises: a step for having droplets of the ultraviolet curable resin composition adhere to the rare earth magnet surface by ejecting the droplets of the ultraviolet curable resin composition from a tip of a head by an inkjet method wherein droplets are ejected from a head; and a step for curing the ultraviolet curable resin composition by irradiating the ultraviolet curable resin composition adhering to the rare earth magnet surface with ultraviolet light.
    Type: Application
    Filed: July 15, 2024
    Publication date: November 7, 2024
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yuta Kuribara, Kazuhito Akada
  • Patent number: 12064983
    Abstract: Provided is a rare earth magnet, on the surface of which a coating film of an ultraviolet cured resin is formed by covering the surface of the rare earth magnet with an ultraviolet curable resin composition and subsequently curing the ultraviolet curable resin composition by irradiating the ultraviolet curable resin composition with ultraviolet light. With respect to this rare earth magnet, the coating film is formed by a method which comprises: a step for having droplets of the ultraviolet curable resin composition adhere to the rare earth magnet surface by ejecting the droplets of the ultraviolet curable resin composition from a tip of a head by an inkjet method wherein droplets are ejected from a head; and a step for curing the ultraviolet curable resin composition by irradiating the ultraviolet curable resin composition adhering to the rare earth magnet surface with ultraviolet light.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: August 20, 2024
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yuta Kuribara, Kazuhito Akada
  • Publication number: 20230029439
    Abstract: A method for recycling a rare earth magnet is described. The rare earth magnet has a film containing Ni on the surface thereof, and the method involves immersing the rare earth magnet in a stripping solution containing a derivative of nitrobenzene, ethylenediamine, and ammonia. This strips the Ni on the surface of the rare earth magnet without deteriorating the characteristics of the rare earth magnet, thereby improving its product yield.
    Type: Application
    Filed: July 7, 2022
    Publication date: January 26, 2023
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Ko WATANABE, Kazuhito AKADA, Yuta KURIBARA, Yoshiyuki HAYASHI
  • Publication number: 20220254552
    Abstract: An assembly of rare earth magnet pieces is prepared by placing two rare earth magnet pieces at their side surfaces in abutment so that top surfaces of magnet pieces are disposed adjacent to each other across the abutment interface, and forming a coating on the adjacent surfaces of magnet pieces, the coating continuously extending across abutment interface and over adjacent surfaces for thereby tightly joining the abutted magnet pieces together.
    Type: Application
    Filed: January 21, 2022
    Publication date: August 11, 2022
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Yuta KURIBARA, Kazuhito AKADA
  • Publication number: 20210146709
    Abstract: Provided is a rare earth magnet, on the surface of which a coating film of an ultraviolet cured resin is formed by covering the surface of the rare earth magnet with an ultraviolet curable resin composition and subsequently curing the ultraviolet curable resin composition by irradiating the ultraviolet curable resin composition with ultraviolet light. With respect to this rare earth magnet, the coating film is formed by a method which comprises: a step for having droplets of the ultraviolet curable resin composition adhere to the rare earth magnet surface by ejecting the droplets of the ultraviolet curable resin composition from a tip of a head by an inkjet method wherein droplets are ejected from a head; and a step for curing the ultraviolet curable resin composition by irradiating the ultraviolet curable resin composition adhering to the rare earth magnet surface with ultraviolet light.
    Type: Application
    Filed: June 28, 2018
    Publication date: May 20, 2021
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yuta Kuribara, Kazuhito Akada