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Ryozo Nakai

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  • Utsunomiya, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for measuring transpiration amount
    • Patent number 6,287,255
    • Issue date Sep 11, 2001
    • Kao Corporation
    • Koji Endo
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Dentifrice composition
    • Patent number 5,700,449
    • Issue date Dec 23, 1997
    • Kao Corporation
    • Yasushi Katayama
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Composition for use in oral cavity
    • Patent number 5,374,418
    • Issue date Dec 20, 1994
    • Kao Corporation
    • Kazushi Oshino
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Composition for use in oral cavity
    • Patent number 5,370,865
    • Issue date Dec 6, 1994
    • Kao Corporation
    • Atsushi Yamagishi
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Method of desensitizing hypersensitive dentin
    • Patent number 5,244,651
    • Issue date Sep 14, 1993
    • Kao Corporation
    • Shigeto Kayane
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Wood preservative composition
    • Patent number 4,510,074
    • Issue date Apr 9, 1985
    • Kao Corporation
    • Ryozo Nakai
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...