TREA

Tadao Hamaya

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  • Bunkyo-ku, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Chitosan-containing polysaccharide, method for preparing the same a...
    • Patent number 7,195,675
    • Issue date Mar 27, 2007
    • Ricom Corporation
    • Hideo Okazaki
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Deodorizer
    • Patent number 5,804,174
    • Issue date Sep 8, 1998
    • Ricom Corporation
    • Sadami Ishibashi
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Deodorizer
    • Patent number 5,639,470
    • Issue date Jun 17, 1997
    • Ricom Corp
    • Sadami Ishibashi
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents