TREA

Ryouji Nakamura

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  • Ayase-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hardness testing apparatus
    • Patent number 7,380,443
    • Issue date Jun 3, 2008
    • Mitutoyo Corporation
    • Masaharu Tsujii
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Hardness testing apparatus
    • Patent number 7,121,136
    • Issue date Oct 17, 2006
    • Mitutoyo Corporation
    • Masaharu Tsujii
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Hardness testing apparatus
    • Publication number 20060288763
    • Publication date Dec 28, 2006
    • Mitutoyo Corporation
    • Masaharu Tsujii
    • G01 - MEASURING TESTING
  • Information Patent Application

    Hardness testing apparatus
    • Publication number 20040134263
    • Publication date Jul 15, 2004
    • AKASHI CORPORATION
    • Masaharu Tsujii
    • G01 - MEASURING TESTING