TREA

for stationary discs

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Industry

  • CPC
  • G11B21/043
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Parent Industries

GPHYSICS G11Information storage G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER G11B21/00Head arrangements not specific to the method of recording or reproducing

Current Industry

G11B21/043for stationary discs
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    System, device, and method for wireless audio transmission
    • Patent number 10,304,479
    • Issue date May 28, 2019
    • Logan Riley
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Lower inertial compact disk driving device
    • Patent number 6,751,183
    • Issue date Jun 15, 2004
    • Pro-Techtor International
    • Chien-Tzu Hou
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Recording reproducer for magnetic cards
    • Patent number 4,114,181
    • Issue date Sep 12, 1978
    • Ricoh Company, Ltd.
    • Tadanao Itoh
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Electric control system for magnetic sheet recording and reproducin...
    • Patent number 4,091,427
    • Issue date May 23, 1978
    • Gakken Co., Ltd.
    • Masao Iwaoka
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Magnetic sheet player with an adjustable inclined magnetic head
    • Patent number 4,020,505
    • Issue date Apr 26, 1977
    • Gakken Co. Ltd.
    • Masao Iwaoka
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Method of and device for testing movable magnetic heads for ability...
    • Patent number 3,962,724
    • Issue date Jun 8, 1976
    • Ricoh Co., Ltd.
    • Masami Koizumi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3885245
    • Patent number 3,885,245
    • Issue date May 20, 1975
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3870319
    • Patent number 3,870,319
    • Issue date Mar 11, 1975
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3787636
    • Patent number 3,787,636
    • Issue date Jan 22, 1974
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3773335
    • Patent number 3,773,335
    • Issue date Nov 20, 1973
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3682482
    • Patent number 3,682,482
    • Issue date Aug 8, 1972
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3638954
    • Patent number 3,638,954
    • Issue date Feb 1, 1972
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3596914
    • Patent number 3,596,914
    • Issue date Aug 3, 1971
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3337694
    • Patent number 3,337,694
    • Issue date Aug 22, 1967
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3224782
    • Patent number 3,224,782
    • Issue date Dec 21, 1965
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3214175
    • Patent number 3,214,175
    • Issue date Oct 26, 1965
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3210082
    • Patent number 3,210,082
    • Issue date Oct 5, 1965
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3185776
    • Patent number 3,185,776
    • Issue date May 25, 1965
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3161883
    • Patent number 3,161,883
    • Issue date Dec 15, 1964
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3131937
    • Patent number 3,131,937
    • Issue date May 5, 1964
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3074724
    • Patent number 3,074,724
    • Issue date Jan 22, 1963
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3046357
    • Patent number 3,046,357
    • Issue date Jul 24, 1962
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3027164
    • Patent number 3,027,164
    • Issue date Mar 27, 1962
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3000638
    • Patent number 3,000,638
    • Issue date Sep 19, 1961
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    2986609
    • Patent number 2,986,609
    • Issue date May 30, 1961
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2973410
    • Patent number 2,973,410
    • Issue date Feb 28, 1961
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2951231
    • Patent number 2,951,231
    • Issue date Aug 30, 1960
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    2940763
    • Patent number 2,940,763
    • Issue date Jun 14, 1960
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    2922654
    • Patent number 2,922,654
    • Issue date Jan 26, 1960
    • G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents