DE3787509D1 - Dünnfilmmagnetkopf. - Google Patents

Dünnfilmmagnetkopf.

Info

Publication number
DE3787509D1
DE3787509D1 DE87117664T DE3787509T DE3787509D1 DE 3787509 D1 DE3787509 D1 DE 3787509D1 DE 87117664 T DE87117664 T DE 87117664T DE 3787509 T DE3787509 T DE 3787509T DE 3787509 D1 DE3787509 D1 DE 3787509D1
Authority
DE
Germany
Prior art keywords
thin film
magnetic head
film magnetic
head
thin
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
DE87117664T
Other languages
English (en)
Other versions
DE3787509T2 (de
Inventor
Kazuhiko C O Nec Corpor Yamada
Takao C O Nec Corpora Maruyama
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.)
TDK Corp
Original Assignee
NEC 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 JP28478786A external-priority patent/JPH0782612B2/ja
Priority claimed from JP28478486A external-priority patent/JPH0618057B2/ja
Priority claimed from JP28478586A external-priority patent/JPH065572B2/ja
Application filed by NEC Corp filed Critical NEC Corp
Publication of DE3787509D1 publication Critical patent/DE3787509D1/de
Application granted granted Critical
Publication of DE3787509T2 publication Critical patent/DE3787509T2/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
    • G11B5/3916—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
    • G11B5/3906—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
    • G11B5/3958—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged in a single plane, e.g. "matrix" disposition
    • G11B5/3961—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged in a single plane, e.g. "matrix" disposition disposed at an angle to the direction of the track or relative movement
    • G11B5/3964—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged in a single plane, e.g. "matrix" disposition disposed at an angle to the direction of the track or relative movement for transducing on a single track

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Magnetic Heads (AREA)
DE87117664T 1986-11-28 1987-11-30 Dünnfilmmagnetkopf. Expired - Fee Related DE3787509T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP28478786A JPH0782612B2 (ja) 1986-11-28 1986-11-28 薄膜磁気ヘツド及びその製造方法
JP28478486A JPH0618057B2 (ja) 1986-11-28 1986-11-28 薄膜磁気ヘッド
JP28478586A JPH065572B2 (ja) 1986-11-28 1986-11-28 薄膜磁気ヘツド

Publications (2)

Publication Number Publication Date
DE3787509D1 true DE3787509D1 (de) 1993-10-28
DE3787509T2 DE3787509T2 (de) 1994-01-20

Family

ID=27337119

Family Applications (1)

Application Number Title Priority Date Filing Date
DE87117664T Expired - Fee Related DE3787509T2 (de) 1986-11-28 1987-11-30 Dünnfilmmagnetkopf.

Country Status (3)

Country Link
US (1) US4954920A (de)
EP (1) EP0269129B1 (de)
DE (1) DE3787509T2 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940004989B1 (ko) * 1989-08-04 1994-06-09 마쯔시다덴기산교 가부시기가이샤 박막자기헤드
JP2563597B2 (ja) * 1989-08-04 1996-12-11 松下電器産業株式会社 複合型薄膜磁気ヘッド
JP2822646B2 (ja) * 1989-10-11 1998-11-11 松下電器産業株式会社 磁気抵抗型ヘッドおよびその製造方法
FR2658647B1 (fr) * 1990-02-21 1992-04-30 Commissariat Energie Atomique Tete magnetique horizontale a effet hall et son procede de realisation.
JP3200060B2 (ja) * 1990-09-12 2001-08-20 ソニー株式会社 薄膜磁気ヘッド
MY107733A (en) * 1991-05-21 1996-05-30 Onstream Inc Combined read/write magnetic head
US5212611A (en) * 1991-07-16 1993-05-18 Storage Technology Corporation Integral read/write recording head with dual gap dimension
US5206774A (en) * 1991-07-26 1993-04-27 Storage Technology Corporation Process for making a magneto-resistive magnetic transducer having increased sensitivity and an improved flux path and the product made thereby
US5260653A (en) * 1992-06-03 1993-11-09 Eastman Kodak Company Thin film very high sensitivity magnetoresistive magnetometer having temperature compensation and simple domain stability
US5815342A (en) * 1992-07-13 1998-09-29 Kabushiki Kaisha Toshiba Perpendicular magnetic recording/reproducing apparatus
US5508868A (en) * 1993-01-25 1996-04-16 Read-Rite Corporation Dual element magnetoresistive sensing head having in-gap flux guide and flux closure piece with particular connection of magnetoresistive sensing elements to differential amplifier
JPH07270507A (ja) * 1994-03-28 1995-10-20 Sony Corp 地磁気方位センサ
JPH0817019A (ja) * 1994-06-28 1996-01-19 Nec Corp 磁気抵抗効果ヘッド
DE69531087T2 (de) * 1994-09-16 2004-05-13 Kabushiki Kaisha Toshiba, Kawasaki Magnetowiderstandeffektkopf und Magnetaufzeichnungs-/Wiedergabekopf daraus
KR100234172B1 (ko) * 1995-01-27 1999-12-15 이형도 박막 자기헤드의 자기 저항소자
KR100270148B1 (ko) * 1996-03-12 2000-12-01 니시무로 타이죠 자기 저항 효과 헤드 및 그 제조방법
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
US6064552A (en) * 1997-03-18 2000-05-16 Kabushiki Kaisha Toshiba Magnetoresistive head having magnetic yoke and giant magnetoresistive element such that a first electrode is formed on the giant magnetoresistive element which in turn is formed on the magnetic yoke which acts as a second electrode
US6469873B1 (en) * 1997-04-25 2002-10-22 Hitachi, Ltd. Magnetic head and magnetic storage apparatus using the same
DE69717094T2 (de) 1997-07-18 2003-08-21 Stmicroelectronics S.R.L., Agrate Brianza Kopf mit Teillesemitteln für einen Plattenspeicher
JP3807592B2 (ja) * 1999-06-24 2006-08-09 松下電器産業株式会社 記録再生ヘッドおよびそれを備えた記録再生装置
JP2005044847A (ja) * 2003-07-23 2005-02-17 Tdk Corp 磁気抵抗効果素子、磁気記憶セルおよび磁気メモリデバイスならびにそれらの製造方法
US7233142B1 (en) * 2004-09-02 2007-06-19 United States Of America As Represented By The Secretary Of The Army Planer reader of non-erasable magnetic media and local permeability
US7505233B2 (en) * 2004-12-15 2009-03-17 International Business Machines Corporation Magnetic sensor
US7317596B2 (en) * 2005-06-21 2008-01-08 Hitachi Global Storage Technologies Netherlands B.V. Magnetic recording disk drive having read head with high cross-track resolution and disk with low bit-aspect-ratio

Family Cites Families (7)

* 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.
NL7901578A (nl) * 1979-02-28 1980-09-01 Philips Nv Magnetoweerstandkop.
US4413296A (en) * 1979-07-16 1983-11-01 Eastman Kodak Company Thin film magnetoresistive head
JPS5616932A (en) * 1979-07-18 1981-02-18 Olympus Optical Co Ltd Recording and reproducing head for vertical magnetic recording and manufacture of this recording and reproducing head and recording and reproducing unit using this recording and reproducing head
EP0053343A1 (de) * 1980-11-28 1982-06-09 Hitachi, Ltd. Wiedergabe- und Verstärkerschaltung für einen magnetoresistiven Kopf
US4388662A (en) * 1981-01-28 1983-06-14 Eastman Kodak Company Thin film magnetoresistive head
US4652945A (en) * 1985-05-03 1987-03-24 Eastman Kodak Company Flux sensitive tracking

Also Published As

Publication number Publication date
DE3787509T2 (de) 1994-01-20
EP0269129A2 (de) 1988-06-01
US4954920A (en) 1990-09-04
EP0269129B1 (de) 1993-09-22
EP0269129A3 (en) 1990-09-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: TDK CORP., TOKIO/TOKYO, JP

8339 Ceased/non-payment of the annual fee