Patents by Inventor Haruhiko Ushirode

Haruhiko Ushirode 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: 10184530
    Abstract: An electromagnetic connection device includes an armature (4), a rotor (3), an electromagnetic coil (14), and a spring member (24) that biases the armature (4) in a direction in which the armature (4) is separated from the rotor (3). The electromagnetic connection device includes a damping member (25) mounted on the armature (4) so as to face the rotor (3). The armature (4) includes a flat portion (22) and a tubular portion (8). The damping member (25) includes a damper cover (26) including an abutment portion along the flat portion (22) and an engaging portion along the tubular portion (8), and an elastic member (27) sandwiched between the abutment portion and the flat portion (22). The damper cover (26) is put on the armature (4) from the side of the rotor (3) and movably held on the tubular portion (8). The flat portion (22) includes a concave portion (35) configured to store the abutment portion of the damper cover (26).
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: January 22, 2019
    Assignees: NTN CORPORATION, OGURA CLUTCH CO., LTD.
    Inventors: Takahide Saito, Koji Sato, Naotsugu Kitayama, Yoshihiro Kurosu, Haruhiko Ushirode
  • Patent number: 10056180
    Abstract: A seal structure for an electromagnet lead wire includes an annular yoke including an annular groove, a wiring hole configured to pass a lead wire of an exciting coil, an insulating resin configured to seal the exciting coil, and a seal member arranged in the hole. The wiring hole includes a though hole of a case, and a concave portion of the yoke. The insulating resin includes a projecting portion whose distal end face is located in the concave portion. The seal member includes a columnar portion inserted into the though hole, and a flange portion located in the concave portion. The flange portion is sandwiched and compressed between the device inner surface of the case and the distal end face of the insulating resin.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: August 21, 2018
    Assignee: OGURA CLUTCH CO., LTD.
    Inventors: Yoshihiro Kurosu, Takashi Yamaguchi, Haruhiko Ushirode
  • Publication number: 20170287612
    Abstract: A seal structure for an electromagnet lead wire includes an annular yoke including an annular groove, a wiring hole configured to pass a lead wire of an exciting coil, an insulating resin configured to seal the exciting coil, and a seal member arranged in the hole. The wiring hole includes a though hole of a case, and a concave portion of the yoke. The insulating resin includes a projecting portion whose distal end face is located in the concave portion. The seal member includes a columnar portion inserted into the though hole, and a flange portion located in the concave portion. The flange portion is sandwiched and compressed between the device inner surface of the case and the distal end face of the insulating resin.
    Type: Application
    Filed: April 4, 2017
    Publication date: October 5, 2017
    Inventors: Yoshihiro KUROSU, Takashi YAMAGUCHI, Haruhiko USHIRODE
  • Publication number: 20170198760
    Abstract: An electromagnetic connection device includes an armature (4), a rotor (3), an electromagnetic coil (14), and a spring member (24) that biases the armature (4) in a direction in which the armature (4) is separated from the rotor (3). The electromagnetic connection device includes a damping member (25) mounted on the armature (4) so as to face the rotor (3). The armature (4) includes a flat portion (22) and a tubular portion (8). The damping member (25) includes a damper cover (26) including an abutment portion along the flat portion (22) and an engaging portion along the tubular portion (8), and an elastic member (27) sandwiched between the abutment portion and the flat portion (22). The damper cover (26) is put on the armature (4) from the side of the rotor (3) and movably held on the tubular portion (8). The flat portion (22) includes a concave portion (35) configured to store the abutment portion of the damper cover (26).
    Type: Application
    Filed: May 28, 2015
    Publication date: July 13, 2017
    Inventors: Takahide SAITO, Koji SATO, Naotsugu KITAYAMA, Yoshihiro KUROSU, Haruhiko USHIRODE
  • Patent number: 8235196
    Abstract: An electromagnetic clutch includes a rotor, armature hub, armature, magnetic body and first permanent magnet, field core, excitation coil, and second permanent magnet. The rotor is rotatably disposed in the housing of a driven device. The armature hub is fixed to the rotating shaft of the driven device, the armature movable in an axial direction. The magnetic body is incorporated in the rotor. The first permanent magnet connects the armature to the rotor. The field core is attached to the housing and inserted in the rotor to be in noncontact with it. The excitation coil is disposed in the field core and excited, when cutting off power transmission, to cancel a magnetic force of the first permanent magnet, thus releasing the armature from the first permanent magnet. The second permanent magnet separates the armature from the rotor, when cutting off power transmission, to move the armature toward the armature hub.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: August 7, 2012
    Assignee: Ogura Clutch Co., Ltd.
    Inventors: Motoi Kato, Yoshihiro Kurosu, Haruhiko Ushirode
  • Publication number: 20120111690
    Abstract: An electromagnetic clutch including a driving rotating body, driven rotating body, armature, and field core. The driving rotating body receives power transmitted from a driving device via a driving power transmission member. The driven rotating body is arranged coaxially with the driving rotating body, and mounted on a driven device to rotate integrally with the driven device. The armature is opposed to the end face of the driving rotating body in the axial direction, and supported by the driven rotating body via spring members to integrally rotate with the driven rotating body. The field core magnetically attracts the armature to the driving rotating body. One end of each of the spring members is fixed to the armature. The other end of each of the spring members is held by the driven rotating body so as to be removed upon being applied with a tensile force.
    Type: Application
    Filed: November 3, 2011
    Publication date: May 10, 2012
    Inventors: Yoshihiro Kurosu, Haruhiko Ushirode
  • Patent number: 7814889
    Abstract: An electric fuel pump includes a pump unit, motor unit, fuel discharge unit, stator holder, magnet wire, connection terminal, first mold resin, driver board assembly, and second mold resin. The fuel discharge unit includes a discharge port member and discharges fuel supplied from the pump unit through the motor unit. The stator holder is provided to the motor unit and includes a partition which defines the motor unit and the fuel discharge unit. The partition includes a terminal insertion hole and a fuel passage. The connection terminal is connected to the magnet wire. The driver board assembly is stored in a space formed in the discharge port member and electrically connected to the connection terminal. The second mold resin molds the driver board assembly and a connecting portion where the driver board assembly is connected to the connection terminal.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: October 19, 2010
    Assignee: Ogura Clutch Company, Ltd.
    Inventors: Takashi Mitsuhashi, Yoshihiro Kurosu, Takeharu Murakami, Haruhiko Ushirode
  • Publication number: 20090314600
    Abstract: An electromagnetic clutch includes a rotor, armature hub, armature, magnetic body and first permanent magnet, field core, excitation coil, and second permanent magnet. The rotor is rotatably disposed in the housing of a driven device. The armature hub is fixed to the rotating shaft of the driven device. The armature is disposed on the armature hub to be movable in an axial direction. The magnetic body is incorporated in the rotor. The first permanent magnet connects the armature to the rotor. The field core is attached to the housing and inserted in the rotor to be in noncontact with it. The excitation coil is disposed in the field core and excited, when cutting off power transmission, to cancel a magnetic force of the first permanent magnet, thus releasing the armature from the first permanent magnet. The second permanent magnet separates the armature from the rotor, when cutting off power transmission, to move the armature toward the armature hub.
    Type: Application
    Filed: June 17, 2009
    Publication date: December 24, 2009
    Inventors: Motoi Kato, Yoshihiro Kurosu, Haruhiko Ushirode
  • Publication number: 20080271714
    Abstract: An electric fuel pump includes a pump unit, motor unit, fuel discharge unit, stator holder, magnet wire, connection terminal, first mold resin, driver board assembly, and second mold resin. The motor unit drives the pump unit. The fuel discharge unit includes a discharge port member and discharges fuel supplied from the pump unit through the motor unit. The stator holder is provided to the motor unit and includes a stator support which supports a stator of a motor and a partition which defines the motor unit and the fuel discharge unit. The partition includes a terminal insertion hole and a fuel passage. The magnet wire is wound around a core of the stator. The connection terminal is connected to the magnet wire. The first mold resin molds the core and a connecting portion where the magnet wire is connected to the connection terminal. The driver board assembly is stored in a space formed in the discharge port member and electrically connected to the connection terminal.
    Type: Application
    Filed: April 21, 2008
    Publication date: November 6, 2008
    Inventors: Takashi Mitsuhashi, Yoshihiro Kurosu, Takeharu Murakami, Haruhiko Ushirode