Patents by Inventor Mitsuhiro Tanabe

Mitsuhiro Tanabe 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: 8052560
    Abstract: A power transmission device includes a pulley 1 and a hub 2 having an inner hub 21, a rubber damper 22 and an outer hub 23. A hub side engagement portion 24 formed of an elastic material and arranged at either one, or both, of an inner peripheral surface and an outer peripheral surface of the outer hub engages with a pulley side engagement portion 12, which is arranged at a position corresponding to the outer hub, of the pulley in a concavo-convex fitting to thereby constitute a torque transmission structure between the hub and the pulley. The hub side engagement portion and the pulley side engagement portion have a concavo-convex outer shape and mesh with each other. A ring-like dust invasion prevention portion 28 covers a front surface of said concavo-convex fitting.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: November 8, 2011
    Assignee: DENSO CORPORATION
    Inventors: Michiyasu Nosaka, Yasuo Tabuchi, Motohiko Ueda, Yoshiki Tada, Hiroshi Nagae, Masahiro Yamashita, Kouji Kida, Mitsuhiro Tanabe
  • Patent number: 7993228
    Abstract: A power transmission device includes a pulley 1 and a hub 2 having an inner hub 21, a rubber damper 22 and an outer hub 23. A hub side engagement portion 24 formed of an elastic material and arranged either one, or both, of inner peripheral surface and outer peripheral surface of the outer hub engages with a pulley side engagement portion 12, arranged at a position corresponding to the outer hub, of the pulley in concavo-convex fitting to thereby constitute a torque transmission structure between the hub and the pulley. The hub side engagement portion and the pulley side engagement portion have a concavo-convex outer shape and mesh with each other.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: August 9, 2011
    Assignee: DENSO CORPORATION
    Inventors: Michiyasu Nosaka, Yasuo Tabuchi, Motohiko Ueda, Yoshiki Tada, Hiroshi Nagae, Masahiro Yamashita, Kouji Kida, Mitsuhiro Tanabe
  • Patent number: 7980977
    Abstract: A power transmission apparatus includes a pulley 1 having a belt attached thereto to transmit the rotating drive force, a hub 2 which connects the pulley to a rotating shaft of a driven device, a bearing 7 which rotatably supports the pulley, and a sleeve ring 5 which is fitted and secured to the pulley and attaches the bearing to the pulley to prevent it relatively moving. The sleeve ring is provided, on its first end opposite to the driven device, with a bent portion 5b against which the bearing abuts to restrict further movement of the bearing. An annular retainer 6 is provided on the portion of the bearing adjacent to the drive device. The bearing is secured to the sleeve ring through the annular retainer by calking a second end 5a of the sleeve ring opposite to the first end. The sleeve ring is provided with a projection 5f which projects in the axial direction from the rear surface of the pulley and a casing 9 is provided with an annular groove 9c which at least partly receives therein the projection.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: July 19, 2011
    Assignee: DENSO CORPORATION
    Inventors: Michiyasu Nosaka, Hiroshi Nagae, Masahiro Yamashita, Yasuo Tabuchi, Yoshiki Tada, Mitsuhiro Tanabe
  • Patent number: 7744284
    Abstract: A bearing according to the present invention includes a cylindrical member formed on and around an outer member of a usual bearing. To firmly connect the cylindrical member to the outer member, grooves having an inclination relative to the axial direction of the bearing are formed so that the grooves do not cross one another on the outer surface of the outer member. The cylindrical member is made of a resin material by molding, and the resin, which is melted by heat in the molding process, enters into and adheres to the grooves. In this manner, the cylindrical member is firmly connected to the outer member so that movement in both of the rotational and axial directions of the bearing is prevented. The grooves formed on the outer surface of the outer member may be grouped, and their inclination relative to the axial direction may be alternately reversed group by group.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: June 29, 2010
    Assignee: DENSO CORPORATION
    Inventors: Yoshiki Tada, Michiyasu Nosaka, Takushi Kamiya, Takayuki Suzuki, Mitsuhiro Tanabe
  • Publication number: 20090258741
    Abstract: A power transmission device includes a pulley 1 and a hub 2 having an inner hub 21, a rubber damper 22 and an outer hub 23. A hub side engagement portion 24 formed of an elastic material and arranged at either one, or both, of an inner peripheral surface and an outer peripheral surface of the outer hub engages with a pulley side engagement portion 12, which is arranged at a position corresponding to the outer hub, of the pulley in a concavo-convex fitting to thereby constitute a torque transmission structure between the hub and the pulley. The hub side engagement portion and the pulley side engagement portion have a concavo-convex outer shape and mesh with each other. A ring-like dust invasion prevention portion 28 covers a front surface of said concavo-convex fitting.
    Type: Application
    Filed: June 16, 2009
    Publication date: October 15, 2009
    Applicant: DENSO CORPORATION
    Inventors: Michiyasu Nosaka, Yasuo Tabuchi, Motohiko Ueda, Yoshiki Tada, Hiroshi Nagae, Masahiro Yamashita, Kouji Kida, Mitsuhiro Tanabe
  • Publication number: 20090186728
    Abstract: A power transmission apparatus includes a pulley 1 having a belt attached thereto to transmit the rotating drive force, a hub 2 which connects the pulley to a rotating shaft of a driven device, a bearing 7 which rotatably supports the pulley, and a sleeve ring 5 which is fitted and secured to the pulley and attaches the bearing to the pulley to prevent it relatively moving. The sleeve ring is provided, on its first end opposite to the driven device, with a bent portion 5b against which the bearing abuts to restrict further movement of the bearing. An annular retainer 6 is provided on the portion of the bearing adjacent to the drive device. The bearing is secured to the sleeve ring through the annular retainer by calking a second end 5a of the sleeve ring opposite to the first end. The sleeve ring is provided with a projection 5f which projects in the axial direction from the rear surface of the pulley and a casing 9 is provided with an annular groove 9c which at least partly receives therein the projection.
    Type: Application
    Filed: March 19, 2009
    Publication date: July 23, 2009
    Applicant: DENSO CORPORATION
    Inventors: Michiyasu Nosaka, Hiroshi Nagae, Masahiro Yamashita, Yasuo Tabuchi, Yoshiki Tada, Mitsuhiro Tanabe
  • Publication number: 20080069487
    Abstract: A bearing according to the present invention includes a cylindrical member formed on and around an outer member of a usual bearing. To firmly connect the cylindrical member to the outer member, grooves having an inclination relative to the axial direction of the bearing are formed not to cross one another on the outer surface of the outer member. The cylindrical member is made of a resin material by molding, and the resin molten by heat in the molding process enters into and adheres to the grooves. In this manner, the cylindrical member is firmly connected to the outer member not to move in both of the rotational and axial directions of the bearing. The grooves formed on the outer surface of the outer member may be grouped, and their inclination relative to the axial direction may be alternately reversed group by group.
    Type: Application
    Filed: May 18, 2007
    Publication date: March 20, 2008
    Applicant: DENSO CORPORATION
    Inventors: Yoshiki Tada, Michiyasu Nosaka, Takushi Kamiya, Takayuki Suzuki, Mitsuhiro Tanabe
  • Publication number: 20060178241
    Abstract: A power transmission apparatus includes a pulley 1 having a belt attached thereto to transmit the rotating drive force, a hub 2 which connects the pulley to a rotating shaft of a driven device, a bearing 7 which rotatably supports the pulley, and a sleeve ring 5 which is fitted and secured to the pulley and attaches the bearing to the pulley to prevent it relatively moving. The sleeve ring is provided, on its first end opposite to the driven device, with a bent portion 5b against which the bearing abuts to restrict further movement of the bearing. An annular retainer 6 is provided on the portion of the bearing adjacent to the drive device. The bearing is secured to the sleeve ring through the annular retainer by calking a second end 5a of the sleeve ring opposite to the first end. The sleeve ring is provided with a projection 5f which projects in the axial direction from the rear surface of the pulley and a casing 9 is provided with an annular groove 9c which at least partly receives therein the projection.
    Type: Application
    Filed: February 2, 2006
    Publication date: August 10, 2006
    Applicant: DENSO CORPORATION
    Inventors: Michiyasu Nosaka, Hiroshi Nagae, Masahiro Yamashita, Yasuo Tabuchi, Yoshiki Tada, Mitsuhiro Tanabe
  • Publication number: 20060084541
    Abstract: A power transmission device includes a pulley 1 and a hub 2 having an inner hub 21, a rubber damper 22 and an outer hub 23. A hub side engagement portion 24 formed of an elastic material and arranged either one, or both, of inner peripheral surface and outer peripheral surface of the outer hub engages with a pulley side engagement portion 12, arranged at a position corresponding to the outer hub, of the pulley in concavo-convex fitting to thereby constitute a torque transmission structure between the hub and the pulley. The hub side engagement portion and the pulley side engagement portion have a concavo-convex outer shape and mesh with each other.
    Type: Application
    Filed: October 18, 2005
    Publication date: April 20, 2006
    Inventors: Michiyasu Nosaka, Yasuo Tabuchi, Motohiko Ueda, Yoshiki Tada, Hiroshi Nagae, Masahiro Yamashita, Kouji Kida, Mitsuhiro Tanabe