DE69516215D1 - Magneto-Widerstandseffekt-Dünnfilmmagnetkopf - Google Patents
Magneto-Widerstandseffekt-DünnfilmmagnetkopfInfo
- Publication number
- DE69516215D1 DE69516215D1 DE69516215T DE69516215T DE69516215D1 DE 69516215 D1 DE69516215 D1 DE 69516215D1 DE 69516215 T DE69516215 T DE 69516215T DE 69516215 T DE69516215 T DE 69516215T DE 69516215 D1 DE69516215 D1 DE 69516215D1
- Authority
- DE
- Germany
- Prior art keywords
- magneto
- thin film
- magnetic head
- film magnetic
- resistance effect
- 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
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6149891A JPH0817020A (ja) | 1994-06-30 | 1994-06-30 | 磁気抵抗効果型薄膜磁気ヘッド |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69516215D1 true DE69516215D1 (de) | 2000-05-18 |
DE69516215T2 DE69516215T2 (de) | 2000-10-19 |
Family
ID=15484895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69516215T Expired - Fee Related DE69516215T2 (de) | 1994-06-30 | 1995-06-28 | Magneto-Widerstandseffekt-Dünnfilmmagnetkopf |
Country Status (5)
Country | Link |
---|---|
US (1) | US5617276A (de) |
EP (1) | EP0690438B1 (de) |
JP (1) | JPH0817020A (de) |
KR (1) | KR960002146A (de) |
DE (1) | DE69516215T2 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5909344A (en) * | 1995-11-30 | 1999-06-01 | International Business Machines Corporation | Magnetoresistive sensor with high resistivity flux guide |
JP2947172B2 (ja) * | 1996-05-23 | 1999-09-13 | ヤマハ株式会社 | 磁気抵抗効果型薄膜磁気ヘッド、誘導型・磁気抵抗効果型複合磁気ヘッド、磁気抵抗効果型薄膜磁気ヘッドの製造方法 |
SG68063A1 (en) * | 1997-07-18 | 1999-10-19 | Hitachi Ltd | Magnetoresistive effect type reproducing head and magnetic disk apparatus equipped with the reproducing head |
JP2000285417A (ja) * | 1999-03-31 | 2000-10-13 | Matsushita Electric Ind Co Ltd | 薄膜磁気ヘッド |
US6256176B1 (en) * | 1999-04-14 | 2001-07-03 | Seagate Technology Llc | Highly sensitive spin valve heads using a self-aligned demag-field balance element |
US6385016B1 (en) | 2000-03-31 | 2002-05-07 | Seagate Technology Llc | Magnetic read head with an insulator layer between an MR sensor and rear portions of current contacts to provide enhanced sensitivity |
JP3474523B2 (ja) | 2000-06-30 | 2003-12-08 | Tdk株式会社 | 薄膜磁気ヘッドおよびその製造方法 |
JP2002133615A (ja) * | 2000-10-25 | 2002-05-10 | Sony Corp | 磁気抵抗効果型磁気ヘッド |
JP2002260204A (ja) * | 2001-02-27 | 2002-09-13 | Fujitsu Ltd | 磁気ヘッド |
US6680830B2 (en) | 2001-05-31 | 2004-01-20 | International Business Machines Corporation | Tunnel valve sensor and flux guide with improved flux transfer therebetween |
US7057864B2 (en) | 2001-07-10 | 2006-06-06 | Hitachi Global Storage Technologies Netherlands B.V. | Method and apparatus for achieving physical connection between the flux guide and the free layer and that insulates the flux guide from the shields |
US6783578B2 (en) * | 2002-12-17 | 2004-08-31 | Isolate, Inc. | Air purification unit |
US7382574B2 (en) * | 2004-12-06 | 2008-06-03 | Seagate Technology Llc | Layered perpendicular writer with pole tip partially embedded in yoke |
US7352540B1 (en) * | 2004-12-20 | 2008-04-01 | Storage Technology Corporation | Giant magneto-resistive (GMR) transducer having separation structure separating GMR sensor from head-tape interface |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2003647B (en) * | 1977-09-02 | 1982-05-06 | Magnex Corp | Thin film magnetic recording heads |
CA1137627A (en) * | 1978-04-25 | 1982-12-14 | Wilhelmus J. Van Gestel | Magnetoresistive head |
NL8102148A (nl) * | 1981-05-01 | 1982-12-01 | Philips Nv | Magnetisch overdrachtselement alsmede magnetisch permeabel onderdeel voor een magnetisch overdrachtselement. |
JPS61105717A (ja) * | 1984-10-26 | 1986-05-23 | Sanyo Electric Co Ltd | 磁気抵抗効果型磁気ヘツドの製造方法 |
JPH0626009B2 (ja) * | 1984-11-20 | 1994-04-06 | 三洋電機株式会社 | 磁気抵抗効果型薄膜磁気ヘツドの製造方法 |
US5111352A (en) * | 1987-07-29 | 1992-05-05 | Digital Equipment Corporation | Three-pole magnetic head with reduced flux leakage |
US4816947A (en) * | 1987-11-12 | 1989-03-28 | International Business Machines | Single track vertical and horizontal recording read/write head design |
US5032945A (en) * | 1989-11-07 | 1991-07-16 | International Business Machines Corp. | Magnetic thin film structures fabricated with edge closure layers |
JPH03242983A (ja) * | 1990-02-06 | 1991-10-29 | Internatl Business Mach Corp <Ibm> | 磁気構造体の製造方法 |
US5142426A (en) * | 1990-06-21 | 1992-08-25 | International Business Machines Corporation | Thin film magnetic head having interspersed resistance layers to provide a desired cut-off frequency |
US5379172A (en) * | 1990-09-19 | 1995-01-03 | Seagate Technology, Inc. | Laminated leg for thin film magnetic transducer |
JPH04214205A (ja) * | 1990-12-12 | 1992-08-05 | Fuji Electric Co Ltd | 薄膜磁気ヘッドおよびその製造方法 |
US5465185A (en) * | 1993-10-15 | 1995-11-07 | International Business Machines Corporation | Magnetoresistive spin valve sensor with improved pinned ferromagnetic layer and magnetic recording system using the sensor |
JPH07192227A (ja) * | 1993-12-28 | 1995-07-28 | Sony Corp | 磁気抵抗効果型磁気ヘッド |
US5546254A (en) * | 1994-07-07 | 1996-08-13 | International Business Machines Corporation | Orthogonal MR Read head with single hard biased MR stripe |
-
1994
- 1994-06-30 JP JP6149891A patent/JPH0817020A/ja not_active Withdrawn
-
1995
- 1995-06-07 US US08/483,793 patent/US5617276A/en not_active Expired - Fee Related
- 1995-06-28 EP EP95110109A patent/EP0690438B1/de not_active Expired - Lifetime
- 1995-06-28 DE DE69516215T patent/DE69516215T2/de not_active Expired - Fee Related
- 1995-06-29 KR KR1019950018030A patent/KR960002146A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
JPH0817020A (ja) | 1996-01-19 |
EP0690438A3 (de) | 1996-06-19 |
US5617276A (en) | 1997-04-01 |
KR960002146A (ko) | 1996-01-26 |
EP0690438B1 (de) | 2000-04-12 |
EP0690438A2 (de) | 1996-01-03 |
DE69516215T2 (de) | 2000-10-19 |
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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 |