TREA

Shohji Maruyama

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical recording medium
    • Patent number 6,762,008
    • Issue date Jul 13, 2004
    • Ricoh Company, Ltd.
    • Tsutomu Satoh
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical recording medium
    • Patent number 6,197,477
    • Issue date Mar 6, 2001
    • Ricoh Company, Ltd.
    • Tsutomu Satoh
    • G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

  • Information Patent Application

    Optical recording medium
    • Publication number 20030068576
    • Publication date Apr 10, 2003
    • Tsutomu Satoh
    • G11 - INFORMATION STORAGE