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Shizuo Umemura

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  • Ibaraki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for recording and reproducing information
    • Patent number 4,805,145
    • Issue date Feb 14, 1989
    • Research Development Corporation of Japan
    • Shizuo Umemura
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Method of forming ultrafine patterns
    • Patent number 4,713,258
    • Issue date Dec 15, 1987
    • Research Development Corporation of Japan
    • Shizuo Umemura
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...