Patents by Inventor Shuji Johnishi

Shuji Johnishi 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).

  • Publication number: 20090165274
    Abstract: A detection unit of a matching apparatus 32 is connected to a control unit 6 of a computer so that a detection signal indicating measured values of diameters of outer and inner ring raceways can be sent thereinto. An outer ring secondary grinding apparatus 24, an cuter ring super finish machining apparatus 25a, an inner ring secondary grinding apparatus 26 and an inner ring super finish machining apparatus 28a are connected to the control unit 6 so that control signals can be received. The control unit 6 imparts shift amounts to diameter machining target values which are set, respectively, in the grinding apparatus 24, 26 and the super finish machining apparatus 25a, 28a for machining a raceway surface of at least one bearing ring of outer and inner rings, based on measured values of diameters of the outer and inner ring raceways which were measured by the detection unit.
    Type: Application
    Filed: November 22, 2005
    Publication date: July 2, 2009
    Applicant: NSK Ltd.
    Inventors: Natsuki Sensui, Shuji Johnishi, Yosuke Irie