Patents by Inventor Michiharu Hikosaka

Michiharu Hikosaka 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: 20150145190
    Abstract: A liquid sealed-in vibration damper respectively connected with two members that perform a relative displacement includes an elastic member, which is provided therein with a liquid chamber in which a liquid is sealed. When a direction from a side of the liquid sealed-in vibration damper connected with one of the two members to a side of the liquid sealed-in vibration damper connected with the other of the two members is set to an extension direction of the elastic member, a recess is provided in a region between an end portion on a side of the elastic member connected with any one of the two members and the liquid chamber, the recess being recessed in a direction orthogonal to the extension direction up to a position where a position of the recess in the orthogonal direction is located at an inner side of the liquid chamber.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 28, 2015
    Applicants: Sumitomo Riko Company Limited, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomoyuki KISHIDA, Shoji OGIMURA, Hideyuki KOMITSU, Michiharu HIKOSAKA, Takayuki GOTO
  • Publication number: 20120074630
    Abstract: An anti-vibration bush has a pair of intermediate members harder than a main rubber elastic body, circumferentially extending for a predetermined length, and provided radially opposite to each other radially between an inner shaft member and an outer tubular member. The intermediate members are embedded in and attached to the main rubber elastic body. An axial size of an end surface on the inner shaft member side of each of the intermediate members is larger than an axial size of an end surface on the outer tubular member side of each of the intermediate members.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 29, 2012
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Kazuhiko KATO, Michiharu HIKOSAKA
  • Patent number: 7793922
    Abstract: A bound stopper provided with a drainage path for draining water that has passed through drainage holes formed in a bottom portion of a bracket. The drainage path is constituted by a recessed portion formed on at least one of a plurality of corresponding portions of a fixing metal fitting and the recessed portion opens outward in a direction perpendicular to an axial direction of the fitting. The corresponding portions are positioned so as to correspond to each of the plurality of the drainage holes, upon the fitting being in contact with the bracket. A locating projection is provided on an outer surface of the corresponding portion different from the corresponding portion having the recessed portion. Insertion of a locating projection into the drainage hole corresponding to the different corresponding portion allows the fitting to be circumferentially positioned such that the corresponding portions correspond to the drainage holes.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: September 14, 2010
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Michiharu Hikosaka, Yasutaka Fukumoto, Takuya Hishinuma, Fumitake Murakami
  • Publication number: 20080203764
    Abstract: A bound stopper provided with a drainage path for draining water that has passed through drainage holes formed in a bottom portion of a bracket. The drainage path is constituted by a recessed portion formed on at least one of a plurality of corresponding portions of a fixing metal fitting and the recessed portion opens outward in a direction perpendicular to an axial direction of the fitting. The corresponding portions are positioned so as to correspond to each of the plurality of the drainage holes, upon the fitting being in contact with the bracket. A locating projection is provided on an outer surface of the corresponding portion different from the corresponding portion having the recessed portion. Insertion of a locating projection into the drainage hole corresponding to the different corresponding portion allows the fitting to be circumferentially positioned such that the corresponding portions correspond to the drainage holes.
    Type: Application
    Filed: February 7, 2008
    Publication date: August 28, 2008
    Applicant: Tokai Rubber Industries, Ltd.
    Inventors: Michiharu Hikosaka, Yasutaka Fukumoto, Takuya Hishinuma, Fumitake Murakami
  • Patent number: 6908076
    Abstract: An upper mount in a suspension system of an automotive vehicle, including a metal housing, a cylindrical body accommodated in the housing, and an outer metal sleeve bonded to the outer circumferential surface of the elastic body and fitted in the housing, wherein the elastic body has an annular sealing lip integrally formed of a rubber material and located radially outwardly of a central opening formed through an upper wall portion of the housing such that the sealing lip is held in pressing contact with an inner surface of the upward wall portion or a cylindrical wall portion of the housing, for preventing a flow of an aqueous component such as water from the central opening to the outer metal sleeve.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: June 21, 2005
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Yukio Hayashi, Koichi Kobayashi, Michiharu Hikosaka, Yorikazu Nakamura
  • Publication number: 20030178269
    Abstract: An upper mount in a suspension system of an automotive vehicle, including a metal housing, a cylindrical body accommodated in the housing, and an outer metal sleeve bonded to the outer circumferential surface of the elastic body and fitted in the housing, wherein the elastic body has an annular sealing lip integrally formed of a rubber material and located radially outwardly of a central opening formed through an upper wall portion of the housing such that the sealing lip is held in pressing contact with an inner surface of the upward wall portion or a cylindrical wall portion of the housing, for preventing a flow of an aqueous component such as water from the central opening to the outer metal sleeve.
    Type: Application
    Filed: March 18, 2003
    Publication date: September 25, 2003
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Yukio Hayashi, Koichi Kobayashi, Michiharu Hikosaka, Yorikazu Nakamura