TREA

Yoshio Naito

Follow

Person

  • Urawa, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Combination of cylinder liner and piston ring of internal combustio...
    • Patent number 6,553,957
    • Issue date Apr 29, 2003
    • Nippon Piston Ring Co., Ltd.
    • Yoshiki Ishikawa
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Combined oil ring
    • Patent number 4,407,515
    • Issue date Oct 4, 1983
    • Nippon Piston Ring Co., Ltd.,
    • Yoshio Naito
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...