TREA

Koji Atsumi

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Piston prover
    • Patent number 9,506,801
    • Issue date Nov 29, 2016
    • Oval Corporation
    • Masahito Yoshimoto
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Vortex flow meter
    • Patent number 4,977,781
    • Issue date Dec 18, 1990
    • Oval Engineering Co., Ltd.
    • Masao Misumi
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Vortex flow meter
    • Patent number 4,891,989
    • Issue date Jan 9, 1990
    • Oval Engineering Co., Ltd.
    • Masao Misumi
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Vortex flow meter
    • Patent number 4,838,092
    • Issue date Jun 13, 1989
    • Oval Engineering Co., Ltd.
    • Masao Misumi
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    PISTON PROVER
    • Publication number 20150308882
    • Publication date Oct 29, 2015
    • OVAL CORPORATION
    • Masahito YOSHIMOTO
    • G01 - MEASURING TESTING