Patents by Inventor Takahiro Nakagaki

Takahiro Nakagaki 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: 11820191
    Abstract: Provided is a stabilizer bush that ensures improved durability. The stabilizer bush (10) comprises: a bush main body (11) formed from a tubular elastic body having a retention hole (12) through which the stabilizer bar (2) passes; a rigid body portion (14) that is fixed to the bush main body (11) and has a higher rigidity than the bush main body (11); and an elastic film (16) that comprises an elastic body and is in contact with a second surface (14b) of the rigid body portion (14). A part of the elastic film (16) is fitted into depressed portions (15a, 15b) that are depressed from the second surface (14b) to a first surface (14a) side.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: November 21, 2023
    Assignee: Toyo Tire Corporation
    Inventors: Takahiro Nakagaki, Yoshiyuki Saihara
  • Publication number: 20220016952
    Abstract: Provided is a stabilizer bush that ensures improved durability. The stabilizer bush (10) comprises: a bush main body (11) formed from a tubular elastic body having a retention hole (12) through which the stabilizer bar (2) passes; a rigid body portion (14) that is fixed to the bush main body (11) and has a higher rigidity than the bush main body (11); and an elastic film (16) that comprises an elastic body and is in contact with a second surface (14b) of the rigid body portion (14). A part of the elastic film (16) is fitted into depressed portions (15a, 15b) that are depressed from the second surface (14b) to a first surface (14a) side.
    Type: Application
    Filed: May 29, 2020
    Publication date: January 20, 2022
    Applicant: Toyo Tire Corporation
    Inventors: Takahiro Nakagaki, Yoshiyuki Saihara
  • Patent number: 11215254
    Abstract: To provide a vibration control bush that ensures improved durability of a rubber elastic body. An inner pipe film portion of the vibration control has an inclined surface whose inclination angle ? with respect to an axis O direction is set to one degree or more and less than three degrees, and the inner pipe film portion has an end portion in the axis O direction whose thickness dimension is set to a quarter or less of a dimension in an axis O perpendicular direction from an outer peripheral surface of an inner pipe to an apex of the protruding portion. This ensures reducing a rubber elastic body to deform so as to bend (close contact) between the inner pipe film portion and the outer pipe film portion when a load in a wrenching direction is input. Accordingly, a durability of the rubber elastic body can be improved.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: January 4, 2022
    Assignee: TOYO TIRE CORPORATION
    Inventor: Takahiro Nakagaki
  • Publication number: 20200132151
    Abstract: To provide a vibration control bush that ensures improved durability of a rubber elastic body. An inner pipe film portion of the vibration control has an inclined surface whose inclination angle ? with respect to an axis O direction is set to one degree or more and less than three degrees, and the inner pipe film portion has an end portion in the axis O direction whose thickness dimension is set to a quarter or less of a dimension in an axis O perpendicular direction from an outer peripheral surface of an inner pipe to an apex of the protruding portion. This ensures reducing a rubber elastic body to deform so as to bend (close contact) between the inner pipe film portion and the outer pipe film portion when a load in a wrenching direction is input. Accordingly, a durability of the rubber elastic body can be improved.
    Type: Application
    Filed: October 22, 2019
    Publication date: April 30, 2020
    Applicant: Toyo Tire Corporation
    Inventor: Takahiro Nakagaki