Patents by Inventor Naoki Tachiuchi

Naoki Tachiuchi 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: 11460088
    Abstract: A damper includes: first and second rotating elements rotatable around a rotation center; an elastic element elastically expanding and contracting in response to relative rotation of the first and second rotating elements; and a limiter provided in the first rotating element. The limiter includes a lining plate having a first sliding surface, a first cover plate having a second sliding surface and a first abutting surface, a second cover plate having an outer edge part and an inner edge part, and a biasing member. When a difference in torque between the lining plate and the first cover plate is a predetermined value or more, the first sliding surface slides with the second sliding surface, and the second sliding surface is inclined with respect to the first abutting surface so as to face the second direction as going radially inward in a free state of the first cover plate.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: October 4, 2022
    Assignee: AISIN CORPORATION
    Inventors: Naoki Tachiuchi, Nobuaki Kurita, Sayo Yamanaka, Mitsuru Natsume, Toru Inagaki, Kento Mizuno, Toru Koyama
  • Publication number: 20200173521
    Abstract: A damper includes: first and second rotating elements rotatable around a rotation center; an elastic element elastically expanding and contracting in response to relative rotation of the first and second rotating elements; and a limiter provided in the first rotating element. The limiter includes a lining plate having a first sliding surface, a first cover plate having a second sliding surface and a first abutting surface, a second cover plate having an outer edge part and an inner edge part, and a biasing member. When a difference in torque between the lining plate and the first cover plate is a predetermined value or more, the first sliding surface slides with the second sliding surface, and the second sliding surface is inclined with respect to the first abutting surface so as to face the second direction as going radially inward in a free state of the first cover plate.
    Type: Application
    Filed: November 26, 2019
    Publication date: June 4, 2020
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Naoki TACHIUCHI, Nobuaki KURITA, Sayo YAMANAKA, Mitsuru NATSUME, Toru INAGAKI, Kento MIZUNO, Toru KOYAMA
  • Patent number: 8696474
    Abstract: A torque fluctuation absorber includes a first annular member, a second annular member arranged to be axially separated from the first annular member, an annular and dish-shaped first disc spring arranged between the first annular member and the second annular member, a first support portion arranged between the first annular member and the first disc spring and being partially or continuously in contact with the first disc spring on a circle passing through a first predetermined radial portion of the first annular member, and a second support portion arranged between the second annular member and the first disc spring and being partially or continuously in contact with the first disc spring on a circle passing through a second predetermined radial portion of the second annular member, the second predetermined radial portion being radially different from the first predetermined radial portion of the first annular member.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: April 15, 2014
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Tomohiro Saeki, Satoshi Nakagaito, Naoko Hayasaka, Naoki Tachiuchi
  • Publication number: 20120264522
    Abstract: A torque fluctuation absorber includes a first annular member, a second annular member arranged to be axially separated from the first annular member, an annular and dish-shaped first disc spring arranged between the first annular member and the second annular member, a first support portion arranged between the first annular member and the first disc spring and being partially or continuously in contact with the first disc spring on a circle passing through a first predetermined radial portion of the first annular member, and a second support portion arranged between the second annular member and the first disc spring and being partially or continuously in contact with the first disc spring on a circle passing through a second predetermined radial portion of the second annular member, the second predetermined radial portion being radially different from the first predetermined radial portion of the first annular member.
    Type: Application
    Filed: March 14, 2012
    Publication date: October 18, 2012
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Tomohiro Saeki, Satoshi Nakagaito, Naoko Hayasaka, Naoki Tachiuchi