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Hiroyuki SAKAKURA

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  • Osaka-shi, Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mechanical seal
    • Patent number 10,876,633
    • Issue date Dec 29, 2020
    • Nippon Pillar Co., Ltd.
    • Hiroyuki Sakakura
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Mechanical seal
    • Patent number 10,823,291
    • Issue date Nov 3, 2020
    • Nippon Pillar Packing Co., Ltd.
    • Hiroyuki Sakakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    MECHANICAL SEAL
    • Publication number 20190154156
    • Publication date May 23, 2019
    • Nippon Pillar Packing Co., Ltd.
    • Hiroyuki SAKAKURA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MECHANICAL SEAL
    • Publication number 20180363782
    • Publication date Dec 20, 2018
    • NIPPON PILLAR PACKING CO., LTD.
    • Hiroyuki SAKAKURA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    END SURFACE-CONTACT MECHANICAL SEAL
    • Publication number 20170370475
    • Publication date Dec 28, 2017
    • Nippon Pillar Packing Co., Ltd.
    • Hiroyuki SAKAKURA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTI-CHANNEL ROTARY JOINT
    • Publication number 20170051857
    • Publication date Feb 23, 2017
    • Nippon Pillar Packing Co., Ltd.
    • Hiroyuki SAKAKURA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...