TREA

Kazuhito Seki

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Oil ring for internal combustion engine
    • Patent number 7,510,196
    • Issue date Mar 31, 2009
    • Nippon Piston Ring Co., Ltd.
    • Keishi Nanno
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Oil Ring for Internal Combustion Engine
    • Publication number 20080169612
    • Publication date Jul 17, 2008
    • Keishi Nanno
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Combination oil ring
    • Publication number 20060113730
    • Publication date Jun 1, 2006
    • Takao Suzuki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...