Patents by Inventor Hideo Yanagino

Hideo Yanagino 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: 9611913
    Abstract: A dust cover assembly including: a dust cover made of resin and having a bellows tube portion; and an upper insulator made of rubber attached to a top end of the dust cover. An engaging tube portion is integrally formed with an upper part of the bellows tube portion of the dust cover. At least one engaging groove opens onto an outer peripheral face of the engaging tube portion and extends in a circumferential direction. At least one locking protrusion is formed on an inner peripheral face of the upper insulator having an annular shape and protrudes toward an inner peripheral side, while extending in the circumferential direction. The engaging tube portion of the dust cover is inserted into the upper insulator, while the locking protrusion is inserted into the engaging groove and is locked therein in an axial direction.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: April 4, 2017
    Assignee: SUMITOMO RIKO COMPANY LIMITED
    Inventors: Hiroaki Nagai, Hideo Yanagino, Kouichi Kobayashi
  • Publication number: 20150240903
    Abstract: A dust cover assembly including: a dust cover made of resin and having a bellows tube portion; and an upper insulator made of rubber attached to a top end of the dust cover. An engaging tube portion is integrally formed with an upper part of the bellows tube portion of the dust cover. At least one engaging groove opens onto an outer peripheral face of the engaging tube portion and extends in a circumferential direction. At least one locking protrusion is formed on an inner peripheral face of the upper insulator having an annular shape and protrudes toward an inner peripheral side, while extending in the circumferential direction. The engaging tube portion of the dust cover is inserted into the upper insulator, while the locking protrusion is inserted into the engaging groove and is locked therein in an axial direction.
    Type: Application
    Filed: May 7, 2015
    Publication date: August 27, 2015
    Inventors: Hiroaki NAGAI, Hideo YANAGINO, Kouichi KOBAYASHI
  • Patent number: 8424891
    Abstract: Semi-tubular portions of two partition members partitioning a bushing body into an outer rubber portion and an inner rubber portion are asymmetrically arranged with respect to a reference plane containing a central axis of the bushing body and parallel to two attachment surfaces of a bracket. In addition, each of the semi-tubular portions is configured to have a length equal to or larger than a diameter of a stabilizer bar, the length being from one end to the other end in a circumferential direction of the semi-tubular portion in a projection view obtained by projecting the semi-tubular portion to a horizontal surface in a vertical direction.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: April 23, 2013
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Hiroaki Nagai, Hideo Yanagino, Kouichi Kobayashi, Yuji Homma
  • Publication number: 20120299261
    Abstract: Semi-tubular portions of two partition members partitioning a bushing body into an outer rubber portion and an inner rubber portion are asymmetrically arranged with respect to a reference plane containing a central axis of the bushing body and parallel to two attachment surfaces of a bracket. In addition, each of the semi-tubular portions is configured to have a length equal to or larger than a diameter of a stabilizer bar, the length being from one end to the other end in a circumferential direction of the semi-tubular portion in a projection view obtained by projecting the semi-tubular portion to a horizontal surface in a vertical direction.
    Type: Application
    Filed: May 23, 2012
    Publication date: November 29, 2012
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Hiroaki NAGAI, Hideo YANAGINO, Kouichi KOBAYASHI, Yuji HOMMA
  • Patent number: 8292312
    Abstract: A stabilizer bushing is provided which effectively reduces a torsional friction between a bushing body and a stabilizer bar. The stabilizer bushing includes a bushing body 16 made of a tubular elastic body, a sliding member 42 fixed to an inner circumferential surface of the tubular elastic body, and two partition members 26, 26 embedded in and bonded to a radially middle area of the bushing body 16. The partition members 26, 26 divide the bushing body 16 into an inner rubber portion 38 that is thin enough not to be elastically-deformed by a load applied thereto and an outer rubber portion 40 that is thicker than the inner rubber portion 38. Further, each of the partition members 26, 26 includes through holes 36a, 36b, 36c that are located so as to divide the partition member into a plurality of sections both in the axial and circumferential directions.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: October 23, 2012
    Assignees: Tokai Rubber Industries, Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuhiko Kato, Hiroaki Nagai, Hideo Yanagino, Katsuzo Okada, Kouichi Kobayashi, Yuji Homma, Shinji Hayashi
  • Publication number: 20110291377
    Abstract: A stabilizer bushing is provided which effectively reduces a torsional friction between a bushing body and a stabilizer bar. The stabilizer bushing includes a bushing body 16 made of a tubular elastic body, a sliding member 42 fixed to an inner circumferential surface of the tubular elastic body, and two partition members 26, 26 embedded in and bonded to a radially middle area of the bushing body 16. The partition members 26, 26 divide the bushing body 16 into an inner rubber portion 38 that is thin enough not to be elastically-deformed by a load applied thereto and an outer rubber portion 40 that is thicker than the inner rubber portion 38. Further, each of the partition members 26, 26 includes through holes 36a, 36b, 36c that are located so as to divide the partition member into a plurality of sections both in the axial and circumferential directions.
    Type: Application
    Filed: August 9, 2011
    Publication date: December 1, 2011
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Kazuhiko KATO, Hiroaki NAGAI, Hideo YANAGINO, Katsuzo OKADA, Kouichi KOBAYASHI, Yuji HOMMA, Shinji HAYASHI