DE69026556D1 - Magnetkopfvorrichtung - Google Patents

Magnetkopfvorrichtung

Info

Publication number
DE69026556D1
DE69026556D1 DE69026556T DE69026556T DE69026556D1 DE 69026556 D1 DE69026556 D1 DE 69026556D1 DE 69026556 T DE69026556 T DE 69026556T DE 69026556 T DE69026556 T DE 69026556T DE 69026556 D1 DE69026556 D1 DE 69026556D1
Authority
DE
Germany
Prior art keywords
magnetic head
head device
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
DE69026556T
Other languages
English (en)
Other versions
DE69026556T2 (de
Inventor
Yuji Nagata
Toshio Fukazawa
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69026556D1 publication Critical patent/DE69026556D1/de
Application granted granted Critical
Publication of DE69026556T2 publication Critical patent/DE69026556T2/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
    • 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
    • G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks
    • 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)
DE69026556T 1989-08-24 1990-08-20 Magnetkopfvorrichtung Expired - Fee Related DE69026556T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1218001A JPH0383213A (ja) 1989-08-24 1989-08-24 薄膜磁気ヘッド

Publications (2)

Publication Number Publication Date
DE69026556D1 true DE69026556D1 (de) 1996-05-23
DE69026556T2 DE69026556T2 (de) 1996-10-31

Family

ID=16713070

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69026556T Expired - Fee Related DE69026556T2 (de) 1989-08-24 1990-08-20 Magnetkopfvorrichtung

Country Status (5)

Country Link
US (1) US5025342A (de)
EP (1) EP0414473B1 (de)
JP (1) JPH0383213A (de)
KR (1) KR940010140B1 (de)
DE (1) DE69026556T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0810485B2 (ja) * 1989-03-20 1996-01-31 株式会社日立製作所 磁気ディスク装置及びこれに搭載する薄膜磁気ヘッドとその製造方法並びに情報の書込み・読出方法
JP2947621B2 (ja) * 1990-12-28 1999-09-13 アルプス電気株式会社 薄膜磁気ヘッド
US5590008A (en) * 1991-04-25 1996-12-31 Hitachi, Ltd. Magnetic disc unit having a plurality of magnetic heads which include multilayer magnetic films
MY107733A (en) * 1991-05-21 1996-05-30 Onstream Inc Combined read/write magnetic head
EP0638893A3 (de) * 1993-08-10 1996-05-15 Read Rite Corp Magnetkopf mit Flusssensorelement für Bandaufnahme/wiedergabe.
US5436779A (en) * 1994-03-31 1995-07-25 Read-Rite Corporation Integrated yoke magnetoresistive transducer with magnetic shunt
KR100233401B1 (ko) * 1996-12-31 1999-12-01 윤종용 박막헤드를 구비하는 디스크 구동 기록장치의 위글 노이즈 제거방법
SE522171C2 (sv) * 2002-05-17 2004-01-20 Aron Losonczi Byggnadsblock innefattande ljusgenomsläppliga fibrer och metod för framställning av detsamma

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673353A (en) * 1970-07-16 1972-06-27 Gen Electric Magnetic transducer having a composite magnetic core structure
GB1344890A (en) * 1971-08-21 1974-01-23 Ibm Electromagnetic transducers
FR2205701B1 (de) * 1972-11-07 1977-08-05 Cii
NL7508533A (nl) * 1975-07-17 1977-01-19 Philips Nv Dunne film magneetkop voor het lezen en schrijven van informatie.
JPS592087B2 (ja) * 1975-07-18 1984-01-17 日本電気株式会社 ジキヘツド
JPS60182008A (ja) * 1984-02-28 1985-09-17 Matsushita Electric Ind Co Ltd 薄膜磁気ヘツド
JPH0630130B2 (ja) * 1984-08-11 1994-04-20 富士通株式会社 薄膜磁気ヘッドの製造方法
JPS61222012A (ja) * 1985-03-28 1986-10-02 Sony Corp 薄膜磁気ヘツド
JPS623414A (ja) * 1985-06-28 1987-01-09 Toshiba Corp 録再兼用薄膜磁気ヘツド
JPS62145527A (ja) * 1985-12-18 1987-06-29 Sharp Corp 複合型薄膜磁気ヘツド
JPS6339111A (ja) * 1986-08-01 1988-02-19 Nec Corp 薄膜磁気ヘツド
JPS63306507A (ja) * 1987-06-05 1988-12-14 Fujitsu Ltd 薄膜磁気ヘッド
US4907113A (en) * 1987-07-29 1990-03-06 Digital Equipment Corporation Three-pole magnetic recording head
US4780779A (en) * 1987-11-19 1988-10-25 Ampex Corporation Laminated sendust metal-in-gap video head
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

Also Published As

Publication number Publication date
KR940010140B1 (ko) 1994-10-22
EP0414473A3 (en) 1992-01-08
KR910005233A (ko) 1991-03-30
JPH0383213A (ja) 1991-04-09
DE69026556T2 (de) 1996-10-31
EP0414473B1 (de) 1996-04-17
US5025342A (en) 1991-06-18
EP0414473A2 (de) 1991-02-27

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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