DE69126082D1 - Magnetischer Kopf - Google Patents

Magnetischer Kopf

Info

Publication number
DE69126082D1
DE69126082D1 DE69126082T DE69126082T DE69126082D1 DE 69126082 D1 DE69126082 D1 DE 69126082D1 DE 69126082 T DE69126082 T DE 69126082T DE 69126082 T DE69126082 T DE 69126082T DE 69126082 D1 DE69126082 D1 DE 69126082D1
Authority
DE
Germany
Prior art keywords
magnetic head
magnetic
head
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.)
Expired - Fee Related
Application number
DE69126082T
Other languages
English (en)
Other versions
DE69126082T2 (de
Inventor
Tomoko Komai
Makoto Imamura
Yuji Sakai
Tetsuo Inoue
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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
Priority claimed from JP2288352A external-priority patent/JPH04163773A/ja
Application filed by Toshiba Corp filed Critical Toshiba Corp
Publication of DE69126082D1 publication Critical patent/DE69126082D1/de
Application granted granted Critical
Publication of DE69126082T2 publication Critical patent/DE69126082T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
    • G11B5/3945—Heads comprising more than one sensitive element
    • G11B5/3948—Heads comprising more than one sensitive element the sensitive elements being active read-out elements
    • 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
    • G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • G11B5/4886—Disposition of heads relative to rotating disc
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59683—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks for magnetoresistive heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE69126082T 1990-09-27 1991-09-23 Magnetischer Kopf Expired - Fee Related DE69126082T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP25511590 1990-09-27
JP2288352A JPH04163773A (ja) 1990-10-29 1990-10-29 磁気ディスク装置
JP1110891 1991-01-31

Publications (2)

Publication Number Publication Date
DE69126082D1 true DE69126082D1 (de) 1997-06-19
DE69126082T2 DE69126082T2 (de) 1997-10-02

Family

ID=27279275

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69126082T Expired - Fee Related DE69126082T2 (de) 1990-09-27 1991-09-23 Magnetischer Kopf

Country Status (4)

Country Link
US (1) US5331492A (de)
EP (1) EP0478256B1 (de)
KR (1) KR960013212B1 (de)
DE (1) DE69126082T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5555142A (en) * 1990-09-27 1996-09-10 Kabushiki Kaisha Toshiba Magnetic disk system
KR100225179B1 (ko) 1992-11-30 1999-10-15 니시무로 타이죠 박막 자기 헤드 및 자기 저항 효과형 헤드
DE69423662T2 (de) * 1993-01-06 2000-07-20 Sony Corp Aufzeichnungsgerät und Aufzeichnungsverfahren für ein Aufzeichnungsmedium
JPH06251339A (ja) * 1993-02-26 1994-09-09 Sony Corp 磁気抵抗効果型薄膜磁気ヘッド及びバイアス特性測定方法
JPH06259714A (ja) * 1993-03-09 1994-09-16 Hitachi Ltd 磁気ディスク装置
JP2531438B2 (ja) * 1993-06-17 1996-09-04 日本電気株式会社 磁気ヘッドおよびその製造方法
JPH07211004A (ja) * 1994-01-20 1995-08-11 Fujitsu Ltd 磁気ディスク装置および記録媒体
JP2635942B2 (ja) * 1994-02-10 1997-07-30 インターナショナル・ビジネス・マシーンズ・コーポレイション 直接アクセス記憶装置のサーボ位置決めの方法及び装置
US5604651A (en) * 1994-02-23 1997-02-18 Applied Magentics Corporation Read head with 4-point magnetoresistive sensing
DE69531087T2 (de) * 1994-09-16 2004-05-13 Kabushiki Kaisha Toshiba, Kawasaki Magnetowiderstandeffektkopf und Magnetaufzeichnungs-/Wiedergabekopf daraus
EP0780833A3 (de) * 1995-12-20 1999-01-07 Ampex Corporation Verbessertes Magnetaufzeichnungssystem mit sättigbarer Schichte und gebrauchmachend von MR-Elementen
US5830590A (en) * 1996-06-28 1998-11-03 Ampex Corporation Magnetic storage and reproducing system with a low permeability keeper and a self-biased magnetoresistive reproduce head
US5861220A (en) * 1996-08-06 1999-01-19 Ampex Corporation Method and apparatus for providing a magnetic storage and reproducing media with a keeper layer having a longitudinal anisotropy
US6256171B1 (en) 1996-09-30 2001-07-03 Kabushiki Kaisha Toshiba Thin film magnetic head having an improved heat dispersion and magnetic recording apparatus using the same
US5843565A (en) * 1996-10-31 1998-12-01 Ampex Corporation Particulate magnetic medium utilizing keeper technology and methods of manufacture
US5793555A (en) * 1996-12-13 1998-08-11 International Business Machines Corporation Seek optimization for disk files with side-by-side head
EP0892390B1 (de) * 1997-07-18 2002-11-13 STMicroelectronics S.r.l. Kopf mit Teillesemitteln für einen Plattenspeicher
US6574061B1 (en) 1999-08-27 2003-06-03 Seagate Technology Llc Method and apparatus for run-time temperature compensation of giant magnetoresistive head bias current
US8243398B2 (en) * 2008-06-18 2012-08-14 Oracle America, Inc. Hybrid trackwidth read element
US9672853B1 (en) 2015-06-01 2017-06-06 Marvell International Ltd. Digital data driven position error signal for magnetic recording

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7508533A (nl) * 1975-07-17 1977-01-19 Philips Nv Dunne film magneetkop voor het lezen en schrijven van informatie.
US4012781A (en) * 1975-08-14 1977-03-15 International Business Machines Corporation Magnetoresistive read head assembly for servo operation
US4204234A (en) * 1978-10-27 1980-05-20 International Business Machines Corporation System for positioning single gap magnetic head to follow moving recorded data track
JPS55135332A (en) * 1979-04-06 1980-10-22 Toshiba Corp Track deviation detector
JPS5951046A (ja) * 1982-09-01 1984-03-24 日東製器株式会社 缶
US4535375A (en) * 1983-01-14 1985-08-13 Magnetic Peripherals, Inc. Magnetoresistive head
IT1180134B (it) * 1984-11-15 1987-09-23 Olivetti & Co Spa Dispositivo di registrazione e riproduzione di dati su un supporto magnetico
US4633344A (en) * 1985-05-28 1986-12-30 Eastman Kodak Company Unambiguously tracking a data track in response to signals derived from the track data itself
JPS6233303A (ja) * 1985-08-02 1987-02-13 Matsushita Electric Ind Co Ltd 磁気抵抗型磁気ヘツドの検出方法
JPH0618057B2 (ja) * 1986-11-28 1994-03-09 日本電気株式会社 薄膜磁気ヘッド
US4851944A (en) * 1987-02-17 1989-07-25 Magnetic Peripherals Inc. Ganged MR head sensor
EP0304695A1 (de) * 1987-08-17 1989-03-01 Siemens Aktiengesellschaft Magnetische Speichereinrichtung mit einem Spurführungssystem
US4816947A (en) * 1987-11-12 1989-03-28 International Business Machines Single track vertical and horizontal recording read/write head design
JP2761223B2 (ja) * 1988-09-30 1998-06-04 株式会社日立製作所 記録再生複合ヘッド及びその製造方法
US5097372A (en) * 1989-08-04 1992-03-17 Matsushita Electric Industrial Co., Ltd. Thin film magnetic head with wide recording area and narrow reproducing area
US5079663A (en) * 1990-01-29 1992-01-07 International Business Machines Corporation Magnetoresistive sensor with track following capability
US5065094A (en) * 1990-08-07 1991-11-12 Seagate Technology, Inc. Two terminal magnetoresistive sensor having DC blocking capacitor

Also Published As

Publication number Publication date
EP0478256A1 (de) 1992-04-01
US5331492A (en) 1994-07-19
KR960013212B1 (ko) 1996-10-02
DE69126082T2 (de) 1997-10-02
EP0478256B1 (de) 1997-05-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee