Patents by Inventor Ryohei HOSHINO

Ryohei HOSHINO 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: 11371566
    Abstract: The wet friction member 1 of the invention includes a core plate 2 formed in a flat ring shape, a friction part 3 arranged in a ring shape. The friction part 3 has segment pieces including rectangular shaped G1 to G4: G1 in which a lower right corner of rectangular piece is notched; G2 in which an upper left corner of rectangular piece is notched; G3 in which an upper right corner of rectangular piece is notched; G4 in which a lower left corner of rectangular piece is notched. The friction part 3 has arrangements T1 and T2: T1 in which G1 and G2 are arranged in a manner a right side of G1 and a left side of G2 face each other; T2 in which G3 and G4 are arranged in a manner a right side of the G3 and a left side of G4 face each other.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: June 28, 2022
    Assignee: AISIN KAKO KABUSHIKI KAISHA
    Inventors: Ryohei Hoshino, Hiroyuki Hara
  • Patent number: 11035428
    Abstract: A present wet friction body includes a core plate, a plurality of friction parts disposed on a main surface thereof in a ring shape at intervals, a plurality of oil grooves defined by the corresponding friction parts. The friction parts include first to third friction parts in which forms of the pair of sidewalls are different each other. The first friction part includes a left sidewall inclining to the right and a right sidewall inclining to the left, with respect to an imaginary line segment, and an outer peripheral wall having a length less than a length of an inner peripheral wall. The second friction part includes a pair of sidewalls, both inclining to the right with respect to an imaginary line segment. The third friction part includes a pair of sidewalls, both inclining to the left with respect to an imaginary line segment.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: June 15, 2021
    Assignee: AISIN KAKO KABUSHIKI KAISHA
    Inventor: Ryohei Hoshino
  • Patent number: 10962065
    Abstract: A wet friction member includes a core plate formed in a flat ring shape; and a friction part arranged on a main surface of the core plate. The friction part is formed in such a manner that four kinds of segment pieces, which are a first piece, a second piece, a third piece, and a fourth piece, are repeatedly arranged in this arrangement order in a ring shape via oil grooves.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: March 30, 2021
    Assignee: AISIN KAKO KABUSHIKI KAISHA
    Inventors: Ryohei Hoshino, Kazunari Asai
  • Publication number: 20200158185
    Abstract: The wet friction member 1 of the invention includes a core plate 2 formed in a flat ring shape, a friction part 3 arranged in a ring shape. The friction part 3 has segment pieces including rectangular shaped G1 to G4: G1 in which a lower right corner of rectangular piece is notched; G2 in which an upper left corner of rectangular piece is notched; G3 in which an upper right corner of rectangular piece is notched; G4 in which a lower left corner of rectangular piece is notched. The friction part 3 has arrangements T1 and T2: T1 in which G1 and G2 are arranged in a manner a right side of G1 and a left side of G2 face each other; T2 in which G3 and G4 are arranged in a manner a right side of the G3 and a left side of G4 face each other.
    Type: Application
    Filed: November 11, 2019
    Publication date: May 21, 2020
    Applicant: AISIN KAKO KABUSHIKI KAISHA
    Inventors: Ryohei HOSHINO, Hiroyuki HARA
  • Publication number: 20190309811
    Abstract: A wet friction member includes a core plate formed in a flat ring shape; and a friction part arranged on a main surface of the core plate.
    Type: Application
    Filed: April 8, 2019
    Publication date: October 10, 2019
    Applicant: AISIN KAKO KABUSHIKI KAISHA
    Inventors: Ryohei HOSHINO, Kazunari Asai
  • Publication number: 20190249737
    Abstract: A present wet friction body includes a core plate, a plurality of friction parts disposed on a main surface thereof in a ring shape at intervals, a plurality of oil grooves defined by the corresponding friction parts. The friction parts include first to third friction parts in which forms of the pair of sidewalls are different each other. The first friction part includes a left sidewall inclining to the right and a right sidewall inclining to the left, with respect to an imaginary line segment, and an outer peripheral wall having a length less than a length of an inner peripheral wall. The second friction part includes a pair of sidewalls, both inclining to the right with respect to an imaginary line segment. The third friction part includes a pair of sidewalls, both inclining to the left with respect to an imaginary line segment.
    Type: Application
    Filed: May 17, 2017
    Publication date: August 15, 2019
    Applicant: AISIN KAKO KABUSHIKI KAISHA
    Inventor: Ryohei HOSHINO