Patents by Inventor Tohru OZEKI

Tohru OZEKI 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).

  • Machine tool
    Patent number: 8562055
    Abstract: A machine tool includes: a hydraulic pump that supplies pressure oil; a fixture plate that positions a workpiece; a fixture base that detachably holds the fixture plate and that moves relative to a tool during machining; a hydraulic cylinder performs an attaching/removing operation for attaching or removing the fixture plate to or from the fixture base; an accumulator that accumulates the pressure oil from the hydraulic pump and that supplies the pressure oil to the hydraulic cylinder; and a manual valve that is manually switched to supply the pressure oil in the accumulator to the hydraulic cylinder to thereby control the attaching/removing operation of the hydraulic cylinder.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: October 22, 2013
    Assignee: JTEKT Corporation
    Inventors: Tohru Ozeki, Eiji Nakamura, Kichiji Takeshita
  • MACHINE TOOL
    Publication number: 20110163488
    Abstract: A machine tool includes: a hydraulic pump that supplies pressure oil; a fixture plate that positions a workpiece; a fixture base that detachably holds the fixture plate and that moves relative to a tool during machining; a hydraulic cylinder performs an attaching/removing operation for attaching or removing the fixture plate to or from the fixture base; an accumulator that accumulates the pressure oil from the hydraulic pump and that supplies the pressure oil to the hydraulic cylinder; and a manual valve that is manually switched to supply the pressure oil in the accumulator to the hydraulic cylinder to thereby control the attaching/removing operation of the hydraulic cylinder.
    Type: Application
    Filed: December 22, 2010
    Publication date: July 7, 2011
    Applicant: JTEKT CORPORATION
    Inventors: Tohru OZEKI, Eiji Nakamura, Kichiji Takeshita