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Hirofumi Miki

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Patents Grantslast 30 patents

  • Information Patent Grant

    Oil-free chain
    • Patent number 7,775,925
    • Issue date Aug 17, 2010
    • Tsubakimoto Chain Co.
    • Takashi Nakagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method and apparatus for making a cylindrical bearing member
    • Patent number 7,594,332
    • Issue date Sep 29, 2009
    • Tsubakimoto Chain Co.
    • Hirofumi Miki
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Reel
    • Patent number 4,995,566
    • Issue date Feb 26, 1991
    • Tsubakimoto Chain Co.
    • Katsumi Kotegawa
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents