Patents by Inventor Yuichiro AKIYAMA

Yuichiro AKIYAMA 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).

  • Operation mechanism of turbocharger
    Patent number: 11725574
    Abstract: An operation mechanism of a turbocharger includes: a driving member undergoes a reciprocating movement; a link plate rotationally coupled to the driving member through a first hinge-portion, wherein a first rotation-center of the first hinge-portion is moves linearly along a virtual line in a reciprocating manner in response to the reciprocating movement; and an operation lever. The operation lever includes: a first end operates a flow regulator of the turbocharger, wherein a swing center of the operation lever is located at the first end; and a second end rotationally coupled to the link plate through a second hinge-portion including a second rotation-center, wherein the second end is swings relative to the swing center when the first rotation-center moves linearly along the virtual line, and wherein a distance from the swing center to the second rotation-center is shorter than a distance from the swing center to the virtual line.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: August 15, 2023
    Inventors: Kuniaki Iizuka, Asako Yasui, Hayata Sakaida, Toshihiro Sugitani, Yuichiro Akiyama, Takehiko Kato
  • OPERATION MECHANISM OF TURBOCHARGER
    Publication number: 20220228525
    Abstract: An operation mechanism of a turbocharger includes: a driving member undergoes a reciprocating movement; a link plate rotationally coupled to the driving member through a first hinge-portion, wherein a first rotation-center of the first hinge-portion is moves linearly along a virtual line in a reciprocating manner in response to the reciprocating movement; and an operation lever. The operation lever includes: a first end operates a flow regulator of the turbocharger, wherein a swing center of the operation lever is located at the first end; and a second end rotationally coupled to the link plate through a second hinge-portion including a second rotation-center, wherein the second end is swings relative to the swing center when the first rotation-center moves linearly along the virtual line, and wherein a distance from the swing center to the second rotation-center is shorter than a distance from the swing center to the virtual line.
    Type: Application
    Filed: April 5, 2022
    Publication date: July 21, 2022
    Inventors: Kuniaki IIZUKA, Asako YASUI, Hayata SAKAIDA, Toshihiro SUGITANI, Yuichiro AKIYAMA, Takehiko KATO
  • Wave washer and variable-flow-rate valve
    Patent number: 10876466
    Abstract: A wave washer according to an aspect of the present disclosure includes an annular body which is formed around an axis into a wave shape and at least one protruding piece which protrudes inward or outward from the body. The at least one protruding piece includes a flat surface which is perpendicular to the axis.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: December 29, 2020
    Assignees: IHI Corporation, CHUO HATSUJO KABUSHIKI KAISHA
    Inventors: Yuichiro Akiyama, Satoshi Ohtani, Naotada Ueda, Michihiko Tanigaki, Hideki Toya
  • WAVE WASHER AND VARIABLE-FLOW-RATE VALVE
    Publication number: 20200347778
    Abstract: A wave washer according to an aspect of the present disclosure includes an annular body which is formed around an axis into a wave shape and at least one protruding piece which protrudes inward or outward from the body. The at least one protruding piece includes a flat surface which is perpendicular to the axis.
    Type: Application
    Filed: March 7, 2018
    Publication date: November 5, 2020
    Applicants: IHI Corporation, CHUO HATSUJO KABUSHIKI KAISHA
    Inventors: Yuichiro AKIYAMA, Satoshi OHTANI, Naotada UEDA, Michihiko TANIGAKI, Hideki TOYA