TREA

Satoru Koyanagi

Follow

Person

  • Fukuoka, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Pipe coupling structure
    • Patent number 10,323,779
    • Issue date Jun 18, 2019
    • TOKI ENGINEERING CO., LTD.
    • Satoru Koyanagi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Metal seal ring
    • Patent number 9,470,313
    • Issue date Oct 18, 2016
    • Satoru Koyanagi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    PIPE COUPLING STRUCTURE
    • Publication number 20160312935
    • Publication date Oct 27, 2016
    • TOKi Engineering Co., Ltd.
    • Satoru KOYANAGI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    METAL SEAL RING AND DUCT APPARATUS USING THE METAL SEAL RING
    • Publication number 20120139235
    • Publication date Jun 7, 2012
    • Satoru Koyanagi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...