TREA

Kazuaki Yuba

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrically conductive copper composition
    • Patent number 5,248,451
    • Issue date Sep 28, 1993
    • Mitsui Mining & Smelting Co., Ltd.
    • Masayuki Tsunaga
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Copper conductive composition
    • Patent number 5,045,236
    • Issue date Sep 3, 1991
    • Mitsui Mining & Smelting Co.
    • Masayuki Tsunaga
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Electrically conductive powder and electrically conductive composit...
    • Patent number 4,888,135
    • Issue date Dec 19, 1989
    • Mitsui Mining & Smelting Co., Ltd.
    • Masayuki Tsunaga
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...