Patents by Inventor Yusuke Hamaguchi

Yusuke Hamaguchi 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: 11565740
    Abstract: A steering device includes: a housing including a first planar surface, the housing being configured to accommodate a part of a rack shaft; an electric motor including a second planar surface facing the first planar surface, the electric motor including a bracket configured to support a rotary shaft; a tightening member configured to tighten the housing and the bracket in a state where the first planar surface and the second planar surface are mated; and a sealing member configured to provide sealing between the housing and the bracket at a position that is closer to the rotary shaft than the tightening member is. At least one of the first planar surface and the second planar surface is formed with a recess located between the tightening member and the sealing member and depressed from the at least one of the first planar surface and the second planar surface.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: January 31, 2023
    Assignee: HITACHI ASTEMO, LTD.
    Inventor: Yusuke Hamaguchi
  • Publication number: 20210269084
    Abstract: A steering device includes: a housing including a first planar surface, the housing being configured to accommodate a part of a rack shaft; an electric motor including a second planar surface facing the first planar surface, the electric motor including a bracket configured to support a rotary shaft; a tightening member configured to tighten the housing and the bracket in a state where the first planar surface and the second planar surface are mated; and a sealing member configured to provide sealing between the housing and the bracket at a position that is closer to the rotary shaft than the tightening member is. At least one of the first planar surface and the second planar surface is formed with a recess located between the tightening member and the sealing member and depressed from the at least one of the first planar surface and the second planar surface.
    Type: Application
    Filed: May 4, 2021
    Publication date: September 2, 2021
    Applicant: Hitachi Astemo, Ltd.
    Inventor: Yusuke HAMAGUCHI
  • Patent number: 9926002
    Abstract: A housing structure includes: a first housing having a fitting inner tubular portion that has an inner tubular end surface and a first bolt fastening portion that has a first bolt aligning surface formed at a position away from the inner tubular end surface in the radial direction, the first housing supporting a first end of an assist shaft via a first bearing; and a second housing having a fitting outer tubular portion having an outer tubular end surface and a second bolt fastening portion that has a second bolt aligning surface that mates with the first bolt aligning surface, the second housing supporting a second end of the assist shaft via a second bearing. A first gap is provided between the inner tubular end surface and an inner tubular opposite surface, and a second gap is provided between the outer tubular end surface and an outer tubular opposite surface.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: March 27, 2018
    Assignee: SHOWA CORPORATION
    Inventors: Yasuhiro Zaike, Yusuke Hamaguchi, Yosuke Takebayashi
  • Patent number: 9889877
    Abstract: A housing structure includes: a first housing having a fitting inner tubular portion that has an inner tubular end surface and a first bolt fastening portion that has a first bolt aligning surface formed at a position away from the inner tubular end surface in the radial direction, the first housing supporting a first end of an assist shaft via a first bearing; and a second housing having a fitting outer tubular portion having an outer tubular end surface and a second bolt fastening portion that has a second bolt aligning surface that mates with the first bolt aligning surface, the second housing supporting a second end of the assist shaft via a second bearing. A first gap is provided between the inner tubular end surface and an inner tubular opposite surface, and a second gap is provided between the outer tubular end surface and an outer tubular opposite surface.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: February 13, 2018
    Assignee: SHOWA CORPORATION
    Inventors: Yasuhiro Zaike, Yusuke Hamaguchi, Yosuke Takebayashi
  • Publication number: 20160264171
    Abstract: A housing structure includes: a first housing having a fitting inner tubular portion that has an inner tubular end surface and a first bolt fastening portion that has a first bolt aligning surface formed at a position away from the inner tubular end surface in the radial direction, the first housing supporting a first end of an assist shaft via a first bearing; and a second housing having a fitting outer tubular portion having an outer tubular end surface and a second bolt fastening portion that has a second bolt aligning surface that mates with the first bolt aligning surface, the second housing supporting a second end of the assist shaft via a second bearing. A first gap is provided between the inner tubular end surface and an inner tubular opposite surface, and a second gap is provided between the outer tubular end surface and an outer tubular opposite surface.
    Type: Application
    Filed: September 25, 2015
    Publication date: September 15, 2016
    Applicant: SHOWA CORPORATION
    Inventors: Yasuhiro ZAIKE, Yusuke HAMAGUCHI, Yosuke TAKEBAYASHI
  • Patent number: 9279450
    Abstract: A structure of a bush bearing includes: a bush on which a groove is formed; and an endless annular-shaped elastic member which is installed in the groove of the bush, and that supports a rack shaft, in which an inner circumferential surface of the bush includes a first inner circumferential surface that is in slide contact with an outer circumferential surface of the rack shaft, which is positioned opposite to a formation position of rack teeth, a second inner circumferential surface that faces the outer circumferential surface of the rack shaft with a gap interposed between the outer circumferential surface and the second inner circumferential surface, and the groove formed in a formation range of the first inner circumferential surface has a depth shallower than that of the groove formed in a formation range of the second inner circumferential surface.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: March 8, 2016
    Assignee: SHOWA CORPORATION
    Inventors: Yasuhiro Zaike, Yusuke Hamaguchi, Tsutomu Kimijima, Tatsuya Saito
  • Publication number: 20150204381
    Abstract: A structure of a bush bearing includes: a bush on which a groove is formed; and an endless annular-shaped elastic member which is installed in the groove of the bush, and that supports a rack shaft, in which an inner circumferential surface of the bush includes a first inner circumferential surface that is in slide contact with an outer circumferential surface of the rack shaft, which is positioned opposite to a formation position of rack teeth, a second inner circumferential surface that faces the outer circumferential surface of the rack shaft with a gap interposed between the outer circumferential surface and the second inner circumferential surface, and the groove formed in a formation range of the first inner circumferential surface has a depth shallower than that of the groove formed in a formation range of the second inner circumferential surface.
    Type: Application
    Filed: July 28, 2014
    Publication date: July 23, 2015
    Inventors: Yasuhiro ZAIKE, Yusuke Hamaguchi, Tsutomu Kimijima, Tatsuya Saito
  • Patent number: 8901922
    Abstract: A relative angle sensing device that senses a relative rotation angle between first and second rotary shafts includes: a rotary component that is provided on one rotary shaft out of the first rotary shaft and the second rotary shaft, and that rotates together with the one rotary shaft; a supported component that generates a magnetic field and that is supported by the rotary component through an adhesive material; and a sensor that is provided in the other rotary shaft out of the first rotary shaft and the second rotary shaft, and that outputs a value corresponding to the magnetic field generated by the supported component. A transmitting unit is provided between the rotary component and the supported component. The transmitting unit transmits rotative force of the one rotary shaft to the supported component by direct contact with each other in a case of peeling of the adhesive material.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: December 2, 2014
    Assignee: Showa Corporation
    Inventors: Yusuke Hamaguchi, Yohei Hama
  • Patent number: 8896296
    Abstract: A hinged electric cable harness component is provided for use with a relative angle sensing device that has a sensor that is contained in a housing that includes a communication hole. The hinged electric cable harness component includes an electric cable holding member that is fitted with the communication hole of the housing and holds an electric cable. The hinged electric cable harness component also includes an outer component that is arranged at a position outside the electric cable holding member in the communication hole of the housing, and that has, at inside thereof, a penetration hole through which the electric cable passes. The outer component has a pair of opening and closing components that is joined by a hinge and opens and closes the penetration hole by relative rotation.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: November 25, 2014
    Assignee: Showa Corporation
    Inventors: Yusuke Hamaguchi, Yohei Hama
  • Patent number: 8578616
    Abstract: A relative angle sensing device includes: a sensor contained in a housing provided with a communication hole and outputting an electric signal corresponding to a relative rotation angle between two rotary shafts coaxially arranged; an electric cable transmitting the electric signal to a device arranged outside of the housing; an electric cable holding member fitted with the communication hole and holding the electric cable; and an external member arranged at a location outer than the electric cable holding member, wherein the external member includes a pair of dividable members dividable in a direction intersecting a hole direction of the communication hole, and the external member passes the electric cable within the pair of dividable members and presses the electric cable with the pair of dividable members to change a direction of the electric cable at the outside of the housing into the direction intersecting the hole direction.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: November 12, 2013
    Assignee: Showa Corporation
    Inventors: Yusuke Hamaguchi, Yohei Hama, Koichi Hata
  • Publication number: 20130134966
    Abstract: A relative angle sensing device is provided with: a sensor that is contained in a housing in which a communication hole communicating inside and outside is formed, and outputs an electric signal according to relative rotation angle between two rotary shafts coaxially arranged; an electric cable that transmits the electric signal outputted from the sensor to an apparatus arranged at outside of the housing; an electric cable holding member that is fitted with the communication hole of the housing and holds the electric cable; and an outer component that is arranged at a position outside the electric cable holding member in the communication hole of the housing, and that has, at inside thereof, a penetration hole through which the electric cable passes. The outer component has a pair of opening and closing components that is joined by a hinge and opens and closes the penetration hole by relative rotation.
    Type: Application
    Filed: June 4, 2012
    Publication date: May 30, 2013
    Applicant: Showa Corporation
    Inventors: Yusuke Hamaguchi, Yohei Hama
  • Publication number: 20130063136
    Abstract: A relative angle sensing device that senses a relative rotation angle between first and second rotary shafts includes: a rotary component that is provided on one rotary shaft out of the first rotary shaft and the second rotary shaft, and that rotates together with the one rotary shaft; a supported component that generates a magnetic field and that is supported by the rotary component through an adhesive material; and a sensor that is provided in the other rotary shaft out of the first rotary shaft and the second rotary shaft, and that outputs a value corresponding to the magnetic field generated by the supported component. A transmitting unit is provided between the rotary component and the supported component. The transmitting unit transmits rotative force of the one rotary shaft to the supported component by direct contact with each other in a case of peeling of the adhesive material.
    Type: Application
    Filed: March 12, 2012
    Publication date: March 14, 2013
    Applicant: Showa Corporation
    Inventors: Yusuke HAMAGUCHI, Yohei Hama
  • Publication number: 20120297634
    Abstract: A relative angle sensing device includes: a sensor contained in a housing provided with a communication hole and outputting an electric signal corresponding to a relative rotation angle between two rotary shafts coaxially arranged; an electric cable transmitting the electric signal to a device arranged outside of the housing; an electric cable holding member fitted with the communication hole and holding the electric cable; and an external member arranged at a location outer than the electric cable holding member, wherein the external member includes a pair of dividable members dividable in a direction intersecting a hole direction of the communication hole, and the external member passes the electric cable within the pair of dividable members and presses the electric cable with the pair of dividable members to change a direction of the electric cable at the outside of the housing into the direction intersecting the hole direction.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 29, 2012
    Applicant: Showa Corporation
    Inventors: Yusuke Hamaguchi, Yohei Hama, Koichi Hata