TREA

Akira Kato

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  • Ibaraki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic recording medium
    • Patent number RE38048
    • Issue date Mar 25, 2003
    • Hitachi Maxell, Ltd.
    • Seigi Kawarai
    • 428 - Stock material or miscellaneous articles
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 5,532,042
    • Issue date Jul 2, 1996
    • Hitachi Maxell, Ltd.
    • Seigi Kawarai
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Thermal recording medium
    • Patent number 5,246,766
    • Issue date Sep 21, 1993
    • Hitachi Maxell Ltd.
    • Ryuzo Fukao
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,364,988
    • Issue date Dec 21, 1982
    • Hitachi Maxell, Ltd.
    • Haruo Andoh
    • G11 - INFORMATION STORAGE