Patents by Inventor Hideo Maehara

Hideo Maehara 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: 7555963
    Abstract: A torque sensor is provided in which a magnetic body can be easily positioned and fixed, and in which an excessive force is prevented from being exerted on a resin or the magnetic body when the magnetic body is press-fitted to a shaft, whereby no resin is damaged, and further stress is not left at the magnetic body. The torque sensor is characterized in that a press-fit member to be press-fitted to a shaft is molded with a resin in a state in which a part thereof is exposed to the outside of the resin, whereby the part thereof becomes a pressure receiving portion, and the pressure receiving portion is pressed with an assembly jig when a magnetic yoke assembly is incorporated to a shaft.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: July 7, 2009
    Assignee: Kayaba Industry Co., Ltd.
    Inventor: Hideo Maehara
  • Publication number: 20080092671
    Abstract: A torque sensor is provided in which a magnetic body can be easily positioned and fixed, and in which an excessive force is prevented from being exerted on a resin or the magnetic body when the magnetic body is press-fitted to a shaft, whereby no resin is damaged, and further stress is not left at the magnetic body. The torque sensor is characterized in that a press-fit member to be press-fitted to a shaft is molded with a resin in a state in which a part thereof is exposed to the outside of the resin, whereby the part thereof becomes a pressure receiving portion, and the pressure receiving portion is pressed with an assembly jig when a magnetic yoke assembly is incorporated to a shaft.
    Type: Application
    Filed: April 19, 2007
    Publication date: April 24, 2008
    Inventor: Hideo Maehara
  • Patent number: 7287440
    Abstract: A magnetism generation portion 4 is provided at a first shaft 2, and a first magnetic yoke 7 and a second magnetic yoke 8 bent in L shape are provided at a second shaft 3 so that a magnetic flux generated at the magnetism generation portion 4 can be detected on the outer circumference side of the second shaft 3, and a magnetism detecting device for detecting the magnetic flux can be provided on the outer circumference side of the second shaft.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: October 30, 2007
    Assignee: Kayaba Industry Co., Ltd.
    Inventor: Hideo Maehara
  • Publication number: 20070209450
    Abstract: A magnetism generation portion 4 is provided at a first shaft 2, and a first magnetic yoke 7 and a second magnetic yoke 8 bent in L shape are provided at a second shaft 3 so that a magnetic flux generated at the magnetism generation portion 4 can be detected on the outer circumference side of the second shaft 3, and a magnetism detecting device for detecting the magnetic flux can be provided on the outer circumference side of the second shaft.
    Type: Application
    Filed: February 27, 2007
    Publication date: September 13, 2007
    Inventor: Hideo MAEHARA
  • Patent number: 6724185
    Abstract: A rotation angle sensor comprises permanent magnets 4, 5 having opposite poles facing each other, and a flux density detecting unit 10 which performs relative rotation between the permanent magnets 4, 5. Opposite magnetic pole surfaces 11, 12 of the permanent magnets 4, 5 are formed in a curved shape so that the flux density between the permanent magnets 4, 5 can be suitably distributed. In this way, the resolution of the sensor can be increased without increase in cost.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: April 20, 2004
    Assignee: Kayaba Industry Co., Ltd.
    Inventors: Norikazu Ooki, Katsumichi Sugihara, Hideo Maehara
  • Publication number: 20020121894
    Abstract: A rotation angle sensor comprises permanent magnets 4, 5 having opposite poles facing each other, and a flux density detecting unit 10 which performs relative rotation between the permanent magnets 4, 5. Opposite magnetic pole surfaces 11, 12 of the permanent magnets 4, 5 are formed in a curved shape so that the flux density between the permanent magnets 4, 5 can be suitably distributed. In this way, the resolution of the sensor can be increased without increase in cost.
    Type: Application
    Filed: February 6, 2002
    Publication date: September 5, 2002
    Inventors: Norikazu Ooki, Katsumichi Sugihara, Hideo Maehara