Patents by Inventor Fujio Harumi

Fujio Harumi 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).

  • Compact wheel speed detector capable of saving space and improving workability
    Publication number: 20080309322
    Abstract: A wheel speed detector for detecting a relative rotating speed between an outer ring and an inner ring by means of a magnetic sensor in association with a magnetic ring. A stationary seal member is fixed to the stationary ring and a rotatable seal member is fixed to the rotatable ring. The seal members engage to seal a gap between the inner ring and the outer ring. The magnetic sensor is fixed to a radial inner surface of the stationary seal member and the magnetic ring is fixed to a radial outer or a radial inner surface of the rotatable seal member and surfaces of the magnetic ring other than that fixed to the radial inner surface of the rotatable seal member are covered with a seal lip.
    Type: Application
    Filed: August 27, 2007
    Publication date: December 18, 2008
    Applicant: KOYO SEIKO CO., LTD.
    Inventors: Minoru Sentoku, Motoshi Kawamura, Kazutoshi Toda, Nobuyuki Seo, Naoki Morimura, Tomohiro Ishii, Kanichi Kouda, Yoshifumi Shige, Fujio Harumi
  • Compact wheel speed detector capable of saving space and improving workability
    Publication number: 20060119349
    Abstract: A wheel speed detector for detecting a relative rotating speed between an outer ring and an inner ring by means of a magnetic sensor in association with a magnetic ring. A stationary seal member is fixed to the stationary ring and a rotatable seal member is fixed to the rotatable ring. The seal members engage to seal a gap between the inner ring and the outer ring. The magnetic sensor is fixed to a radial inner surface of the stationary seal member and the magnetic ring is fixed to a radial outer or a radial inner surface of the rotatable seal member and surfaces of the magnetic ring other than that fixed to the radial inner surface of the rotatable seal member are covered with a seal lip.
    Type: Application
    Filed: January 25, 2006
    Publication date: June 8, 2006
    Inventors: Minoru Sentoku, Motoshi Kawamura, Kazutoshi Toda, Nobuyuki Seo, Naoki Morimura, Tomohiro Ishii, Kanichi Kouda, Yoshifumi Shige, Fujio Harumi
  • Wheel speed detector having stationary seal member for mounting magnetic sensor
    Patent number: 7034521
    Abstract: A wheel speed detector for detecting a relative rotating speed between an outer ring and an inner ring by means of a magnetic sensor in association with a magnetic ring. A stationary seal member is fixed to the stationary ring and a rotatable seal member is fixed to the rotatable ring. The seal members engage to seal a gap between the inner ring and the outer ring. The magnetic sensor is fixed to a radial inner surface of the stationary seal member and the magnetic ring is fixed to a radial outer or a radial inner surface of the rotatable seal member and surfaces of the magnetic ring other than that fixed to the radial inner surface of the rotatable seal member are covered with a seal lip.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: April 25, 2006
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Minoru Sentoku, Motoshi Kawamura, Kazutoshi Toda, Nobuyuki Seo, Naoki Morimura, Tomohiro Ishii, Kanichi Kouda, Yoshifumi Shige, Fujio Harumi
  • Sealed wheel speed detector with rotating magnetic ring and stationary magnetic sensor
    Patent number: 6943542
    Abstract: This wheel speed detector is constructed of a magnetic sensor and a magnetic ring and is integrated with the inside of a seal device. The magnetic ring constitutes a part (core bar) of the seal device. This arrangement can enable the compacting and reduction in the number of components and improve space saving and assembling workability.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: September 13, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Minoru Sentoku, Motoshi Kawamura, Kazutoshi Toda, Nobuyuki Seo, Naoki Morimura, Tomohiro Ishii, Kanichi Kouda, Yoshifumi Shige, Fujio Harumi
  • Compact wheel speed detector capable of saving space and improving workability
    Publication number: 20030205999
    Abstract: This wheel speed detector is constructed of a magnetic sensor and a magnetic ring and is integrated with the inside of a seal device. The magnetic ring constitutes a part (core bar) of the seal device. This arrangement can enable the compacting and reduction in the number of components and improve space saving and assembling workability.
    Type: Application
    Filed: April 30, 2003
    Publication date: November 6, 2003
    Applicant: Koyo Seiko Co., Ltd.
    Inventors: Minoru Sentoku, Motoshi Kawamura, Kazutoshi Toda, Nobuyuki Seo, Naoki Morimura, Tomohiro Ishii, Kanichi Kouda, Yoshifumi Shige, Fujio Harumi
  • Compact wheel speed detector capable of saving space and improving workability
    Patent number: 6605938
    Abstract: This ring speed detector is constructed of a magnetic sensor and a magnetic ring and is integrated with the inside of a seal device. The magnetic ring constitutes a part (core bar) of the seal device. This arrangement can enable the compacting and reduction in the number of components and improve space saving and assembling workability.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: August 12, 2003
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Minoru Sentoku, Motoshi Kawamura, Kazutoshi Toda, Nobuyuki Seo, Naoki Morimura, Tomohiro Ishii, Kanichi Kouda, Yoshifumi Shige, Fujio Harumi
  • Compact wheel speed detector capable of saving space and improving workability
    Publication number: 20020167305
    Abstract: This wheel speed detector is constructed of a magnetic sensor and a magnetic ring and is integrated with the inside of a seal device. The magnetic ring constitutes a part (core bar) of the seal device. This arrangement can enable the compacting and reduction in the number of components and improve space saving and assembling workability.
    Type: Application
    Filed: July 2, 2002
    Publication date: November 14, 2002
    Applicant: Koyo Seiko Co., Ltd.
    Inventors: Minoru Sentoku, Motoshi Kawamura, Kazutoshi Toda, Nobuyuki Seo, Naoki Morimura, Tomohiro Ishii, Kanichi Kouda, Yoshifumi Shige, Fujio Harumi
  • Rotating member supporting apparatus
    Patent number: 4634300
    Abstract: A rotating member supporting apparatus has a rotating shaft which is inserted to a bore formed in a support member. A rolling bearing is interposed between the rotating shaft and support member and rotatably supports the rotating shaft. The bearing includes an inner and outer rings which have resistance to heat and corrosion, and a plurality of rolling elements rollably arranged between the inner and outer rings. The rolling elements are formed of ceramic material.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: January 6, 1987
    Assignees: Koyo Seiko Company Limited, Kabushiki Kaisha Toshiba
    Inventors: Hiroaki Takebayashi, Fujio Harumi, Kiyoshi Nakamura, Koichi Inoue