TREA

Satoshi Kawai

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  • Kuki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Camshaft
    • Patent number 5,044,224
    • Issue date Sep 3, 1991
    • Nippon Piston Ring Co., Ltd.
    • Takeshi Hiraoka
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Camshaft
    • Patent number 5,009,123
    • Issue date Apr 23, 1991
    • Nippon Piston Ring Co. Ltd.
    • Takeshi Hiraoka
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Assembled cam shaft
    • Patent number 5,007,956
    • Issue date Apr 16, 1991
    • Nippon Piston Ring Co., Ltd.
    • Yoshiaki Fujita
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Assembled camshaft
    • Patent number 4,998,955
    • Issue date Mar 12, 1991
    • Nippon Piston Ring Co., Ltd.
    • Takeshi Hiraoka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method of making camshaft
    • Patent number 4,969,262
    • Issue date Nov 13, 1990
    • Nippon Piston Ring Co., Ltd.
    • Takeshi Hiraoka
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Ultrasonic joint inspection device and method
    • Patent number 4,891,972
    • Issue date Jan 9, 1990
    • Nippon Piston Ring Co., Ltd.
    • Takashi Kawaguchi
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Method and device for examination of a joint of a ultrasonic joint...
    • Patent number 4,817,420
    • Issue date Apr 4, 1989
    • Nippon Piston Ring Co., Ltd.
    • Takashi Kawaguchi
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Sintered alloy having improved wear resistance property
    • Patent number 4,696,696
    • Issue date Sep 29, 1987
    • Nippon Piston Ring Co., Ltd.
    • Yoshiaki Fujita
    • B22 - CASTING POWDER METALLURGY