Patents by Inventor Yuta ISHIGAKI

Yuta ISHIGAKI 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).

  • Catalytic converter
    Patent number: 11623180
    Abstract: A catalytic converter is provided with: an inlet-side diffuser part; an outlet-side diffuser part; a case including an upstream-side cylindrical part and a downstream-side cylindrical part; an inner liner provided in the upstream-side cylindrical part; a first catalyst retained inside the inner liner; and a second catalyst retained inside the downstream-side cylindrical part. An end face of the second catalyst faces a peripheral surface of the inner liner. An annular flow path is provided between the upstream-side cylindrical part and the inner liner, and the first catalyst is insulated from heat by the annular flow path. A part of exhaust flows into the second catalyst via the annular flow path.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: April 11, 2023
    Assignees: NISSAN MOTOR CO., LTD., RENAULT S. A. S.
    Inventors: Takayuki Hamamoto, Hirofumi Tsuchida, Daisuke Takaki, Yuta Ishigaki
  • CATALYTIC CONVERTER
    Publication number: 20220274060
    Abstract: A catalytic converter is provided with: an inlet-side diffuser part; an outlet-side diffuser part; a case including an upstream-side cylindrical part and a downstream-side cylindrical part; an inner liner provided in the upstream-side cylindrical part; a first catalyst retained inside the inner liner; and a second catalyst retained inside the downstream-side cylindrical part. An end face of the second catalyst faces a peripheral surface of the inner liner. An annular flow path is provided between the upstream-side cylindrical part and the inner liner, and the first catalyst is insulated from heat by the annular flow path. A part of exhaust flows into the second catalyst via the annular flow path.
    Type: Application
    Filed: May 22, 2019
    Publication date: September 1, 2022
    Applicants: NISSAN MOTOR CO., LTD., RENAULT S.A.S.
    Inventors: Takayuki HAMAMOTO, Hirofumi TSUCHIDA, Daisuke TAKAKI, Yuta ISHIGAKI