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Masaharu HIRAI

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  • Hamamatsu-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vent duct
    • Patent number 8,944,110
    • Issue date Feb 3, 2015
    • Roki Co., Ltd.
    • Takeki Shiga
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    PIPING UNIT WITH HEAT EXCHANGE STRUCTURE
    • Publication number 20200132236
    • Publication date Apr 30, 2020
    • ROKI CO., LTD.
    • Takahisa AKITA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    VENT DUCT
    • Publication number 20130248044
    • Publication date Sep 26, 2013
    • ROKI CO., LTD.
    • Takeki SHIGA
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS