TREA

Koji Hayafune

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Resin compositions including ceramics emitting far infrared rays
    • Patent number 5,151,463
    • Issue date Sep 29, 1992
    • Mitsui Toatsu Chemicals, Inc.
    • Koji Hayafune
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

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    • Patent number 4,839,736
    • Issue date Jun 13, 1989
    • Mitsui Toatsu Chemicals, Inc.
    • Eiichi Sugihara
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

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    • Patent number 4,755,716
    • Issue date Jul 5, 1988
    • Mitsui Toatsu Chemicals, Inc.
    • Koji Hayafune
    • H01 - BASIC ELECTRIC ELEMENTS