TREA

Yoneo Matsuzawa

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  • Saku, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic tape cassette
    • Patent number 4,363,059
    • Issue date Dec 7, 1982
    • TDK Electronics Co., Ltd.
    • Yoneo Matsuzawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording tape
    • Patent number 4,338,367
    • Issue date Jul 6, 1982
    • TDK Electronics Co., Ltd.
    • Yoshio Kawakami
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording tape
    • Patent number 4,304,807
    • Issue date Dec 8, 1981
    • TDK Electronics Co. Ltd.
    • Yoshio Kawakami
    • G11 - INFORMATION STORAGE