JPS5760523A - Integrated magnetic transducer - Google Patents

Integrated magnetic transducer

Info

Publication number
JPS5760523A
JPS5760523A JP56117583A JP11758381A JPS5760523A JP S5760523 A JPS5760523 A JP S5760523A JP 56117583 A JP56117583 A JP 56117583A JP 11758381 A JP11758381 A JP 11758381A JP S5760523 A JPS5760523 A JP S5760523A
Authority
JP
Japan
Prior art keywords
magnetic transducer
integrated magnetic
integrated
transducer
magnetic
Prior art date
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.)
Pending
Application number
JP56117583A
Other languages
English (en)
Inventor
Detsuseeru Jiyatsuku
Eru Mishieru
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANTERUNASHIYONARU PUURU RANFUORUMATEIKU SEE I I HANIIUERUBURU CO
Original Assignee
ANTERUNASHIYONARU PUURU RANFUORUMATEIKU SEE I I HANIIUERUBURU CO
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 by ANTERUNASHIYONARU PUURU RANFUORUMATEIKU SEE I I HANIIUERUBURU CO filed Critical ANTERUNASHIYONARU PUURU RANFUORUMATEIKU SEE I I HANIIUERUBURU CO
Publication of JPS5760523A publication Critical patent/JPS5760523A/ja
Pending 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
    • G11B5/3903—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 using magnetic thin film layers or their effects, the films being part of integrated structures
    • 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
    • G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
    • G11B5/2452—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track where the dimensions of the effective gap are controlled
    • 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
    • G11B5/3109—Details
    • G11B5/3113—Details for improving the magnetic domain structure or avoiding the formation or displacement of undesirable magnetic domains
    • 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
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers
    • G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding
    • G11B5/3146—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers
    • G11B5/3153—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers including at least one magnetic thin film coupled by interfacing to the basic magnetic thin film structure
    • 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
    • G11B5/332—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using thin films

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Measuring Magnetic Variables (AREA)
JP56117583A 1980-08-27 1981-07-27 Integrated magnetic transducer Pending JPS5760523A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8018599A FR2489570A1 (fr) 1980-08-27 1980-08-27 Transducteur magnetique integre

Publications (1)

Publication Number Publication Date
JPS5760523A true JPS5760523A (en) 1982-04-12

Family

ID=9245427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56117583A Pending JPS5760523A (en) 1980-08-27 1981-07-27 Integrated magnetic transducer

Country Status (5)

Country Link
US (1) US4422118A (ja)
EP (1) EP0046697B1 (ja)
JP (1) JPS5760523A (ja)
DE (1) DE3169531D1 (ja)
FR (1) FR2489570A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6050711A (ja) * 1983-08-31 1985-03-20 Hitachi Ltd 薄膜磁気ヘツド

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4860139A (en) * 1987-06-19 1989-08-22 Censtor Corporation Planarized read/write head and method
EP0314172B1 (en) * 1987-10-29 1994-03-09 Fuji Photo Film Co., Ltd. Film magnetic head
WO1989005505A1 (en) * 1987-12-04 1989-06-15 Digital Equipment Corporation Laminated poles for recording heads
US5108837A (en) * 1987-12-04 1992-04-28 Digital Equipment Corporation Laminated poles for recording heads
US4970616A (en) * 1988-08-17 1990-11-13 Digital Equipment Corporation Recording head to minimize undershoots in readback pulses
US5137750A (en) * 1990-11-06 1992-08-11 Seagate Technology, Inc. Method of making a thin film head with contoured pole face edges for undershoot reduction
US5181152A (en) * 1991-02-22 1993-01-19 Seagate Technology Inc. Leading edge undershoot elimination in thin film heads
FR2747499B1 (fr) * 1996-04-12 1998-07-17 Silmag Sa Tete magnetique horizontale a magnetoresistance perfectionnee
JP3790347B2 (ja) * 1997-11-26 2006-06-28 Ｔｄｋ株式会社 薄膜磁気ヘッドの製造方法
US6771462B1 (en) 1999-09-20 2004-08-03 Seagate Technology Llc Perpendicular recording head including concave tip
US6865056B1 (en) 1999-10-05 2005-03-08 Seagate Technology Llc Longitudinal magnetic recording heads with variable-length gaps
DE60006984D1 (de) * 1999-10-05 2004-01-15 Seagate Technology Llc Magnetköpfe mit längenveränderlicher spalte für longitudinale aufzeichnung
US6707642B1 (en) 2000-02-04 2004-03-16 Seagate Technology Llc Longitudinal magnetic recording head with reduced side fringing
US6680829B2 (en) * 2000-09-13 2004-01-20 Seagate Technology Llc MR structures for high areal density reader by using side shields

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961299A (en) * 1969-10-28 1976-06-01 Commissariat A L'energie Atomique Magnetic circuit having low reluctance
BE758054A (fr) * 1969-10-28 1971-04-01 Commissariat Energie Atomique Circuit magnetique a faible reluctance
US3639699A (en) * 1970-02-27 1972-02-01 Gen Electric Magnetic transducer having a composite magnetic core structure
GB1344890A (en) * 1971-08-21 1974-01-23 Ibm Electromagnetic transducers
US4092688A (en) * 1975-07-31 1978-05-30 Matsushita Electric Industrial Co. Ltd. Multi-track thin film magnetic head
US4052749A (en) * 1976-05-19 1977-10-04 Matsushita Electric Industrial Co., Ltd. Thin film magnetic head
JPS554737A (en) * 1978-06-23 1980-01-14 Mitsubishi Electric Corp Thin film magnetic head
JPS5512530A (en) * 1978-07-10 1980-01-29 Fujitsu Ltd Thin film magnetic head
US4353102A (en) * 1979-07-04 1982-10-05 Matsushita Electric Industrial Co., Ltd. Thin-film magnetic head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6050711A (ja) * 1983-08-31 1985-03-20 Hitachi Ltd 薄膜磁気ヘツド
JPH02766B2 (ja) * 1983-08-31 1990-01-09 Hitachi Ltd

Also Published As

Publication number Publication date
US4422118A (en) 1983-12-20
EP0046697A1 (fr) 1982-03-03
FR2489570A1 (fr) 1982-03-05
EP0046697B1 (fr) 1985-03-27
DE3169531D1 (en) 1985-05-02
FR2489570B1 (ja) 1985-03-01

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