Patents by Inventor Katsuhiko Sekine

Katsuhiko Sekine 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).

  • Developing blade and its manufacturing method
    Patent number: 8005408
    Abstract: A developing blade (1) comprises a support member (2) having a coefficient of elasticity in the range of 0.5×104 to 4.0×104 kg/mm2 and a moment of inertia of area (Iz) in the range of 6.5E-04 to 1.2E-02, and a blade member (4) located on one surface of the support member (2) along one side edge (2A). The blade member (4) is made of a rubber material having a 25% modulus of no greater than 0.85 MPa, and has a moment of inertia of area (Iz) in the range of 8E-02 to 1.2E+01, and the blade member (4) has a warping of no greater than 10 mm in the longitudinal direction.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: August 23, 2011
    Assignee: Fujikura Rubber Ltd.
    Inventors: Hiroshi Nakamura, Hitoshi Yamauchi, Koji Abe, Katsuhiko Sekine, Junji Tsuboi, Shinji Souma
  • DEVELOPING BLADE AND ITS MANUFACTURING METHOD
    Publication number: 20100166467
    Abstract: A developing blade (1) comprises a support member (2) having a coefficient of elasticity in the range of 0.5×104 to 4.0×104 kg/mm2 and a moment of inertia of area (Iz) in the range of 6.5E-04 to 1.2E-02, and a blade member (4) located on one surface of the support member (2) along one side edge (2A). The blade member (4) is made of a rubber material having a 25% modulus of no greater than 0.85 MPa, and has a moment of inertia of area (Iz) in the range of 8E-02 to 1.2E+01, and the blade member (4) has a warping of no greater than 10 mm in the longitudinal direction.
    Type: Application
    Filed: March 28, 2007
    Publication date: July 1, 2010
    Applicant: FUJIKURA RUBBER LTD.
    Inventors: Hiroshi Nakamura, Hitoshi Yamauchi, Koji Abe, Katsuhiko Sekine, Junji Tsuboi, Shinji Souma