DE69026556D1 - Magnetkopfvorrichtung - Google Patents
MagnetkopfvorrichtungInfo
- 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
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)
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)
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)
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 |
-
1989
- 1989-08-24 JP JP1218001A patent/JPH0383213A/ja active Pending
-
1990
- 1990-08-15 US US07/567,812 patent/US5025342A/en not_active Expired - Lifetime
- 1990-08-20 EP EP90309116A patent/EP0414473B1/de not_active Expired - Lifetime
- 1990-08-20 DE DE69026556T patent/DE69026556T2/de not_active Expired - Fee Related
- 1990-08-24 KR KR1019900013117A patent/KR940010140B1/ko not_active IP Right Cessation
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 |