DE69417616D1 - Magnetoresistiver Kopf - Google Patents

Magnetoresistiver Kopf

Info

Publication number
DE69417616D1
DE69417616D1 DE69417616T DE69417616T DE69417616D1 DE 69417616 D1 DE69417616 D1 DE 69417616D1 DE 69417616 T DE69417616 T DE 69417616T DE 69417616 T DE69417616 T DE 69417616T DE 69417616 D1 DE69417616 D1 DE 69417616D1
Authority
DE
Germany
Prior art keywords
magnetoresistive head
magnetoresistive
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
DE69417616T
Other languages
English (en)
Other versions
DE69417616T2 (de
Inventor
Takao Koshikawa
Yoshinori Ohtsuka
Yuji Uehara
Junzo Toda
Yoshifumi Mizoshita
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69417616D1 publication Critical patent/DE69417616D1/de
Publication of DE69417616T2 publication Critical patent/DE69417616T2/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
    • G11B5/3912—Arrangements in which the active read-out elements are transducing in association with active magnetic shields, e.g. magnetically coupled shields
    • 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
    • G11B5/33—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
    • G11B5/33—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
    • G11B5/3916—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide
    • G11B5/3919—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path
    • G11B5/3922—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path the read-out elements being disposed in magnetic shunt relative to at least two parts of the flux guide structure
    • G11B5/3925—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path the read-out elements being disposed in magnetic shunt relative to at least two parts of the flux guide structure the two parts being thin films
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE1994617616 1993-03-18 1994-01-31 Magnetoresistiver Kopf Expired - Fee Related DE69417616T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5760293 1993-03-18
JP5302637A JP2788403B2 (ja) 1993-03-18 1993-12-02 磁気抵抗効果ヘッド

Publications (2)

Publication Number Publication Date
DE69417616D1 true DE69417616D1 (de) 1999-05-12
DE69417616T2 DE69417616T2 (de) 1999-07-22

Family

ID=26398671

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1994617616 Expired - Fee Related DE69417616T2 (de) 1993-03-18 1994-01-31 Magnetoresistiver Kopf

Country Status (3)

Country Link
EP (1) EP0616318B1 (de)
JP (1) JP2788403B2 (de)
DE (1) DE69417616T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002074623A (ja) 2000-08-31 2002-03-15 Toshiba Corp 水平ヨーク型磁気ヘッドおよび磁気記録装置ならびに磁気再生装置
JP2002260204A (ja) * 2001-02-27 2002-09-13 Fujitsu Ltd 磁気ヘッド
US7894168B2 (en) 2007-08-28 2011-02-22 Tdk Corporation Thin-film magnetic head comprising a magneto-resistive effect device of a CPP structure and having a shunting layer

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502375B1 (fr) * 1981-03-20 1989-08-18 Cii Honeywell Bull Transducteur magnetoresistant de lecture d'informations a tres haute densite
US4566050A (en) * 1982-12-30 1986-01-21 International Business Machines Corp. (Ibm) Skew insensitive magnetic read head
JPS59221824A (ja) * 1983-05-31 1984-12-13 Sony Corp 磁気抵抗効果型磁気ヘツド
JPS60136018A (ja) * 1983-12-23 1985-07-19 Sony Corp 磁気抵抗効果型磁気ヘツド
JPS6173220A (ja) * 1984-09-18 1986-04-15 Matsushita Electric Ind Co Ltd 磁気抵抗型ヘツド
JPS61258320A (ja) * 1985-05-10 1986-11-15 Hitachi Ltd 磁気抵抗効果型ヘツド
JPS6391818A (ja) * 1986-10-03 1988-04-22 Sharp Corp ヨ−ク型磁気抵抗効果薄膜ヘツド
JP2664677B2 (ja) * 1987-03-30 1997-10-15 株式会社東芝 磁気抵抗効果型薄膜磁気ヘツド
AU1628188A (en) * 1987-04-01 1988-11-02 Digital Equipment Corporation Magneto-resistive thin film head for digital magnetic storage device
JPS63293714A (ja) * 1987-05-26 1988-11-30 Nec Kansai Ltd ヨ−ク型磁気抵抗効果ヘッド
US4907113A (en) * 1987-07-29 1990-03-06 Digital Equipment Corporation Three-pole magnetic recording head
KR940004989B1 (ko) * 1989-08-04 1994-06-09 마쯔시다덴기산교 가부시기가이샤 박막자기헤드
JPH0487011A (ja) * 1990-07-30 1992-03-19 Nec Corp 磁気抵抗効果ヘッド
JP2857286B2 (ja) * 1991-09-27 1999-02-17 シャープ株式会社 磁気抵抗効果型薄膜磁気ヘッド
JPH05114119A (ja) * 1991-10-21 1993-05-07 Fujitsu Ltd 磁気抵抗効果型磁気ヘツド

Also Published As

Publication number Publication date
DE69417616T2 (de) 1999-07-22
JPH06325331A (ja) 1994-11-25
JP2788403B2 (ja) 1998-08-20
EP0616318A2 (de) 1994-09-21
EP0616318A3 (en) 1997-02-26
EP0616318B1 (de) 1999-04-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee