Patents by Inventor Kensuke DOI

Kensuke DOI 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).

  • Publication number: 20220154637
    Abstract: A cover for an internal combustion engine is configured to be attached to an engine main body so as to cover a timing chain or a timing belt. The cover for the internal combustion engine includes insertion holes configured to receive a crankshaft or a camshaft. The cover for the internal combustion engine includes a first member made of a hard plastic and a second member made of a material different from the hard plastic. The first member is produced by insert molding with the second member embedded in the first member. A periphery of at least one of the insertion holes in the second member includes a joint surface that is joined to the first member. The joint surface includes annular grooves surrounding the insertion hole, the annular grooves being arranged in a radial direction of the insertion hole.
    Type: Application
    Filed: November 9, 2021
    Publication date: May 19, 2022
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Kensuke DOI, Yoji HORIUCHI, Hideto MORISHITA
  • Patent number: 11242820
    Abstract: A chain cover is configured to cover a timing chain that transmits rotation of a crankshaft of an internal combustion engine to a camshaft. The chain cover includes a crankshaft-side opening forming portion that defines a crankshaft-side opening into which the crankshaft is inserted, and a general portion that is a section different from the crankshaft-side opening forming portion. The crankshaft-side opening forming portion is made of a first material. The general portion is made of a second material. The first material and the second material are different from each other.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: February 8, 2022
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Kensuke Doi, Yoji Horiuchi, Hideto Morishita
  • Patent number: 10876448
    Abstract: An oil mist separator includes a case, an oil collecting portion, and a gradual change portion. The case includes a case main body, an inlet for blow-by gas provided on an upstream side of the case main body in a flowing direction of the blow-by gas, and an outlet for blow-by gas provided on a downstream side in the flowing direction of the case main body. The oil collecting portion is accommodated in the case main body. The gradual change portion is provided in the case and is located in at least one of a space between the inlet and the oil collecting portion in the flowing direction and a space between the oil collecting portion and the outlet in the flowing direction. A cross-sectional flow area of the gradual change portion is gradually decreased as a distance from the oil collecting portion in the flowing direction increases.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: December 29, 2020
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Kensuke Doi
  • Publication number: 20200400095
    Abstract: A chain cover is configured to cover a timing chain that transmits rotation of a crankshaft of an internal combustion engine to a camshaft. The chain cover includes a crankshaft-side opening forming portion that defines a crankshaft-side opening into which the crankshaft is inserted, and a general portion that is a section different from the crankshaft-side opening forming portion. The crankshaft-side opening forming portion is made of a first material. The general portion is made of a second material. The first material and the second material are different from each other.
    Type: Application
    Filed: June 11, 2020
    Publication date: December 24, 2020
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Kensuke DOI, Yoji HORIUCHI, Hideto MORISHITA
  • Publication number: 20200063619
    Abstract: An oil mist separator includes a case, an oil collecting portion, and a gradual change portion. The case includes a case main body, an inlet for blow-by gas provided on an upstream side of the case main body in a flowing direction of the blow-by gas, and an outlet for blow-by gas provided on a downstream side in the flowing direction of the case main body. The oil collecting portion is accommodated in the case main body. The gradual change portion is provided in the case and is located in at least one of a space between the inlet and the oil collecting portion in the flowing direction and a space between the oil collecting portion and the outlet in the flowing direction. A cross-sectional flow area of the gradual change portion is gradually decreased as a distance from the oil collecting portion in the flowing direction increases.
    Type: Application
    Filed: August 14, 2019
    Publication date: February 27, 2020
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Kensuke DOI