JPS5640404B2 - - Google Patents

Info

Publication number
JPS5640404B2
JPS5640404B2 JP3790773A JP3790773A JPS5640404B2 JP S5640404 B2 JPS5640404 B2 JP S5640404B2 JP 3790773 A JP3790773 A JP 3790773A JP 3790773 A JP3790773 A JP 3790773A JP S5640404 B2 JPS5640404 B2 JP S5640404B2
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP3790773A
Other languages
Japanese (ja)
Other versions
JPS4929618A (en]
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of JPS4929618A publication Critical patent/JPS4929618A/ja
Publication of JPS5640404B2 publication Critical patent/JPS5640404B2/ja
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/17—Construction or disposition of windings
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • G11B5/2652—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
JP3790773A 1972-05-19 1973-04-04 Expired JPS5640404B2 (en])

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US255116A US3881191A (en) 1972-05-19 1972-05-19 Three-gap magnetic recording head having a single flux sensing means

Publications (2)

Publication Number Publication Date
JPS4929618A JPS4929618A (en]) 1974-03-16
JPS5640404B2 true JPS5640404B2 (en]) 1981-09-21

Family

ID=22966897

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3790773A Expired JPS5640404B2 (en]) 1972-05-19 1973-04-04

Country Status (5)

Country Link
US (1) US3881191A (en])
JP (1) JPS5640404B2 (en])
DE (1) DE2315713A1 (en])
FR (1) FR2185826B1 (en])
GB (1) GB1406756A (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0443308U (en]) * 1990-08-09 1992-04-13

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2264350B1 (en]) * 1974-03-11 1978-09-29 Cii
US4404609A (en) * 1981-10-30 1983-09-13 International Business Machines Corporation Thin film inductive transducer for perpendicular recording
DE3241400A1 (de) * 1982-11-09 1984-05-10 Nixdorf Computer Ag, 4790 Paderborn Verfahren und einrichtung zur fortlaufenden aufzeichnung von informationssignalen vorbestimmter laenge auf eine magnetspeicherspur
NL8401116A (nl) * 1984-04-09 1985-11-01 Philips Nv Magnetische leeskop met een meervoudige spleet.
US4644432A (en) * 1985-01-28 1987-02-17 International Business Machines Three pole single element magnetic read/write head
US5134535A (en) * 1991-01-18 1992-07-28 Digital Equipment Corporation Architecture for a thin-film magnetic recording head
US5378885A (en) * 1991-10-29 1995-01-03 Mars Incorporated Unshielded magnetoresistive head with multiple pairs of sensing elements
DE4314423A1 (de) * 1993-05-03 1994-11-10 Philips Patentverwaltung Magnetbandgerät
JPH0773411A (ja) * 1993-08-31 1995-03-17 Sony Corp データカートリッジ用磁気ヘッド装置
EP0889460B1 (en) * 1997-07-04 2003-09-24 STMicroelectronics S.r.l. An electromagnetic head with magnetoresistive means connected to a magnetic core
JP2008071982A (ja) * 2006-09-15 2008-03-27 Hitachi Industrial Equipment Systems Co Ltd 変圧器
US8385018B2 (en) * 2009-11-03 2013-02-26 International Business Machines Corporation Magnetic writer having multiple gaps with more uniform magnetic fields across the gaps
US8315013B2 (en) * 2010-05-10 2012-11-20 International Business Machines Corporation Magnetic write head with flux diverting structure
GB2502574A (en) * 2012-05-31 2013-12-04 Ibm Write head producing same magnetic field strength at each gap

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL136149C (en]) * 1960-03-18
FR1270579A (fr) * 1960-07-18 1961-09-01 Tête pour l'enregistrement ou la lecture de magnétogrammes
US3207856A (en) * 1962-04-16 1965-09-21 Michigan Magnetics Inc Magnetic head for recorder and reproducer
US3317742A (en) * 1963-01-30 1967-05-02 Fritz A Guerth Pulse generating apparatus
US3495049A (en) * 1968-03-08 1970-02-10 Michigan Magnetics Inc Magnetic transducer wear indicator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0443308U (en]) * 1990-08-09 1992-04-13

Also Published As

Publication number Publication date
JPS4929618A (en]) 1974-03-16
FR2185826A1 (en]) 1974-01-04
US3881191A (en) 1975-04-29
GB1406756A (en) 1975-09-17
FR2185826B1 (en]) 1977-07-29
DE2315713A1 (de) 1973-11-29

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