TREA

Hirofumi Aritsubo

Follow

Person

  • Sanda, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Shaft seal device
    • Patent number 5,421,593
    • Issue date Jun 6, 1995
    • Nippon Pillar Packing Co., Ltd.
    • Hirofumi Aritsubo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Emergency shaft seal device by deformation of packing ring
    • Patent number 4,541,638
    • Issue date Sep 17, 1985
    • Nipon Pillar Packing Co.. Ltd.
    • Takahisa Ogawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...