Patents by Inventor Hiroyoshi Mitsuhashi

Hiroyoshi Mitsuhashi 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: 7014585
    Abstract: The present invention provides a blade-type tensioner system for a chain that can easily improve spring properties. A blade-type tensioner includes a blade shoe and a blade spring positioned on the back side of chain sliding surface of the blade shoe so as to impart tension to a chain through the blade shoe. The blade shoe is pivotably supported around a shoulder bolt inserted into a proximal end portion of the blade shoe, and a distal end portion of the blade shoe is slidably supported on a supporting face provided in the engine. The distal end portion of the blade shoe contacts a flat, first supporting face at a point. When tension in the chain is increased, the distal end portion contacts a concave, second supporting face at a point which is continuous with the first supporting face.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: March 21, 2006
    Assignee: BorgWarner Morse TEC Japan K.K.
    Inventors: Yasuo Horikawa, Toru Okazaki, Hiroyoshi Mitsuhashi
  • Patent number: 6808467
    Abstract: A blade tensioner of a blade tensioner system for a chain that drivingly connects a drive shaft to a driving shaft in an engine, that improves the chain-damping efficiency in a blade tensioner applied to the chain within an engine, prevents the sideways tilt of the blade tensioner during operation, in a blade tensioner applied to the chain in an engine, and provides a blade tensioner with a functionality that allows it to transversely guide a chain along the chain sliding face in a blade shoe, while maintaining the flexural deformability (i.e., the flexibility) of the blade shoe.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: October 26, 2004
    Assignee: Borgwarner Inc.
    Inventors: Hiroyuki Takeda, Shinji Tsuruta, Hiroyoshi Mitsuhashi, Sadao Kojima, Akira Terao, Kensuke Nakamura, Hajime Maeda, Masashi Yamada
  • Patent number: 6616557
    Abstract: A blade tensioner includes a blade shoe having a chain sliding face and a plurality of blade springs disposed and stacked at the opposite side to the chain sliding face. A clip is provided on the blade springs. The clip includes a clip body encompassing the blade springs, which elastically contacts the blade springs, and an engaging portion integrally formed with the clip body. The engaging portion includes an engagement hole to engage a tool.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: September 9, 2003
    Assignee: Borgwarner, INC
    Inventors: Shinji Tsuruta, Hiroyoshi Mitsuhashi
  • Publication number: 20030125144
    Abstract: The present invention provides a blade-type tensioner system for a chain that can easily improve spring properties. A blade-type tensioner includes a blade shoe and a blade spring positioned on the back side of chain sliding surface of the blade shoe so as to impart tension to a chain through the blade shoe. The blade shoe is pivotably supported around a shoulder bolt inserted into a proximal end portion of the blade shoe, and a distal end portion of the blade shoe is slidably supported on a supporting face provided in the engine. Th distal end portion of the blade shoe contacts a flat, first supporting face at a point. When tension in the chain is increased, the distal end portion contacts a concave, second supporting face at a point which is continuous with the first supporting face.
    Type: Application
    Filed: December 12, 2002
    Publication date: July 3, 2003
    Inventors: Yasuo Horikawa, Toru Okazaki, Hiroyoshi Mitsuhashi
  • Publication number: 20020198073
    Abstract: A blade tensioner of s blade tensioner system for a chain that drivingly connects a drive shaft to a driving shaft in an engine, that improves the chain-damping efficiency in a blade tensioner applied to the chain within an engine, prevents the sideways tilt of the blade tensioner during operation, in a blade tensioner applied to the chain in an engine, and provides a blade tensioner with a functionality that allows it to transversely guide a chain along the chain sliding face in a blade shoe, while maintaining the flexural deformability (i.e., the flexibility) of the blade shoe.
    Type: Application
    Filed: May 17, 2002
    Publication date: December 26, 2002
    Inventors: Hiroyuki Takeda, Shinji Tsuruta, Hiroyoshi Mitsuhashi, Sadao Kojima, Akira Terao, Kensuke Nakamura, Hajime Maeda, Masashi Yamada
  • Publication number: 20020107096
    Abstract: A blade tensioner includes a blade shoe having a chain sliding face and a plurality of blade springs disposed and stacked at the opposite side to the chain sliding face. A clip is provided on the blade springs. The clip includes a clip body encompassing the blade springs, which elastically contacts the blade springs, and an engaging portion integrally formed with the clip body. The engaging portion includes an engagement hole to engage a tool.
    Type: Application
    Filed: January 10, 2002
    Publication date: August 8, 2002
    Inventors: Shinji Tsuruta, Hiroyoshi Mitsuhashi