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Kiyoshi Oshima

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  • Kitaadachi-gun, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical disk production device
    • Patent number 6,537,423
    • Issue date Mar 25, 2003
    • Dainippon Ink and Chemicals, Inc.
    • Shoei Ebisawa
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Optical disk and method of manufacturing optical disk
    • Patent number 6,406,770
    • Issue date Jun 18, 2002
    • Dainippon Ink and Chemicals, Inc.
    • Shoei Ebisawa
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL