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Masaaki Hama

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  • Takatsuki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for producing an inorganic sintered body
    • Patent number 4,649,003
    • Issue date Mar 10, 1987
    • Sumitomo Chemical Company, Limited
    • Tadanori Hashimoto
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Method for producing .alpha.-form silicon nitride fine powders
    • Patent number 4,590,053
    • Issue date May 20, 1986
    • Sumitomo Chemical Company, Limited
    • Tadanori Hashimoto
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Adhesive composition
    • Patent number 4,144,113
    • Issue date Mar 13, 1979
    • Sumitomo Chemical Company, Limited
    • Atsuo Mori
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...