Patents by Inventor Norinobu Ogawa

Norinobu Ogawa 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).

  • Linear actuator provided with dust-proof mechanism
    Patent number: 8650978
    Abstract: There is provided a linear actuator provided with a dust-proof mechanism capable of preventing dust-proof belts from being deformed, improving a sealing performance between the dust-proof belts and a housing member, and achieving high dust-proof performance irrespective of a size of the linear actuator.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: February 18, 2014
    Assignee: THK Co., Ltd.
    Inventors: Toshiyuki Aso, Toshiya Tanaka, Toshiaki Mizuno, Norinobu Ogawa, Minoru Tsukada, Yukitoshi Kobayashi
  • LINEAR ACTUATOR PROVIDED WITH DUST-PROOF MECHANISM
    Publication number: 20130147286
    Abstract: There is provided a linear actuator provided with a dust-proof mechanism capable of preventing dust-proof belts from being deformed, improving a sealing performance between the dust-proof belts and a housing member, and achieving high dust-proof performance irrespective of a size of the linear actuator.
    Type: Application
    Filed: December 7, 2010
    Publication date: June 13, 2013
    Applicant: THK CO., LTD.
    Inventors: Toshiyuki Aso, Toshiya Tanaka, Toshiaki Mizuno, Norinobu Ogawa, Minoru Tsukada, Yukitoshi Kobayashi
  • Linear actuator with dustproof mechanism
    Patent number: 8272286
    Abstract: A linear actuator with a dustproof mechanism provides reliable dustproof capability over the entire stroke of the actuator. A linear actuator 100 with a dustproof mechanism includes a ball screw, a movable stage 4 including a ball screw nut that engages the ball screw, the movable stage capable of making linear reciprocating motion in the axial direction of the ball screw in response to rotary motion of the ball screw, a housing member 2 disposed to cover at least the ball screw, openings 27, 28 formed in the housing member 2 along the path along which the movable stage 4 travels, and dustproof belts 29, 30 disposed inside the housing member 2 to block the openings 27, 28. The linear actuator 100 with a dustproof mechanism further includes end plate covers 105a, 105b that cover both ends of the housing member 2 and hence has high dustproof performance.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: September 25, 2012
    Assignee: THK Co., Ltd.
    Inventors: Toshiyuki Aso, Toshiya Tanaka, Norinobu Ogawa, Toshiaki Mizuno, Minoru Tsukada, Yukitoshi Kobayashi
  • LINEAR ACTUATOR WITH DUSTPROOF MECHANISM
    Publication number: 20100206102
    Abstract: A linear actuator with a dustproof mechanism provides reliable dustproof capability over the entire stroke of the actuator. A linear actuator 100 with a dustproof mechanism includes a ball screw, a movable stage 4 including a ball screw nut that engages the ball screw, the movable stage capable of making linear reciprocating motion in the axial direction of the ball screw in response to rotary motion of the ball screw, a housing member 2 disposed to cover at least the ball screw, openings 27, 28 formed in the housing member 2 along the path along which the movable stage 4 travels, and dustproof belts 29, 30 disposed inside the housing member 2 to block the openings 27, 28. The linear actuator 100 with a dustproof mechanism further includes end plate covers 105a, 105b that cover both ends of the housing member 2 and hence has high dustproof performance.
    Type: Application
    Filed: August 12, 2008
    Publication date: August 19, 2010
    Applicant: THK CO., LTD.
    Inventors: Toshiyuki Aso, Toshiya Tanaka, Norinobu Ogawa, Toshiaki Mizuno, Minoru Tsukada, Yukitoshi Kobayashi