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Shozaburo Imai

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  • Niihama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical device
    • Patent number 5,135,791
    • Issue date Aug 4, 1992
    • Sumitomo Chemical Company, Limited
    • Shozaburo Imai
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Optical disk substrate
    • Patent number 4,812,345
    • Issue date Mar 14, 1989
    • Sumitomo Chemical Company, Limited
    • Shozaburo Imai
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical resin material having improved birefringence
    • Patent number 4,785,053
    • Issue date Nov 15, 1988
    • Sumitomo Chemical Company, Limited
    • Iko Ito
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for producing oxybenzoyl copolyesters
    • Patent number 4,316,004
    • Issue date Feb 16, 1982
    • Sumitomo Chemical Company, Limited
    • Shozaburo Imai
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for producing polycondensates
    • Patent number 4,313,870
    • Issue date Feb 2, 1982
    • Sumitomo Chemical Company, Limited
    • Shozaburo Imai
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for producing aromatic polyesters
    • Patent number 4,311,823
    • Issue date Jan 19, 1982
    • Sumitomo Chemical Company Limited
    • Shozaburo Imai
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...