SE7606005L - Huvudarangemang for lesning av magnetiskt upptecknad information fran ett medium - Google Patents
Huvudarangemang for lesning av magnetiskt upptecknad information fran ett mediumInfo
- Publication number
- SE7606005L SE7606005L SE7606005A SE7606005A SE7606005L SE 7606005 L SE7606005 L SE 7606005L SE 7606005 A SE7606005 A SE 7606005A SE 7606005 A SE7606005 A SE 7606005A SE 7606005 L SE7606005 L SE 7606005L
- Authority
- SE
- Sweden
- Prior art keywords
- medium
- recorded information
- magnetically recorded
- reading magnetically
- main arrangements
- Prior art date
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
-
- 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
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/11—Shielding of head against electric or magnetic fields
- G11B5/115—Shielding devices arranged between heads or windings
-
- 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 |
---|---|---|---|
US05/583,226 US3975772A (en) | 1975-06-02 | 1975-06-02 | Double shielded magnetorestive sensing element |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7606005L true SE7606005L (sv) | 1976-12-03 |
SE413120B SE413120B (sv) | 1980-04-14 |
Family
ID=24332221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7606005A SE413120B (sv) | 1975-06-02 | 1976-05-26 | Magnethuvudarrangemang |
Country Status (6)
Country | Link |
---|---|
US (1) | US3975772A (sv) |
JP (1) | JPS5836406B2 (sv) |
DE (1) | DE2621790A1 (sv) |
GB (1) | GB1481939A (sv) |
NL (1) | NL7605717A (sv) |
SE (1) | SE413120B (sv) |
Families Citing this family (66)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4065797A (en) * | 1974-12-20 | 1977-12-27 | Matsushita Electric Industrial Co., Ltd. | Multi-element magnetic head |
JPS5448616U (sv) * | 1977-09-09 | 1979-04-04 | ||
US4255772A (en) * | 1979-06-29 | 1981-03-10 | International Business Machines Corporation | Read/write magnetic head assembly with magnetoresistive sensor |
US4447839A (en) * | 1980-10-28 | 1984-05-08 | Compagnie Internationale Pour L'informatique Cii-Honeywell Bull (Societe Anonyme) | Magnetoresistant transducer |
JPS5862818A (ja) * | 1981-10-08 | 1983-04-14 | Victor Co Of Japan Ltd | 磁気シ−ルド型磁気抵抗効果ヘツド |
US4589041A (en) * | 1982-08-30 | 1986-05-13 | International Business Machines Corporation | Differential magnetoresistive sensor for vertical recording |
US4566050A (en) * | 1982-12-30 | 1986-01-21 | International Business Machines Corp. (Ibm) | Skew insensitive magnetic read head |
NL8401116A (nl) * | 1984-04-09 | 1985-11-01 | Philips Nv | Magnetische leeskop met een meervoudige spleet. |
US4604669A (en) * | 1984-09-04 | 1986-08-05 | Honeywell Inc. | Magnetostrictive record head |
US4639808A (en) * | 1984-09-26 | 1987-01-27 | Storage Technology Corporation | Asymmetrical shields for controlling feedthrough in read/write heads |
EP0197158B1 (en) * | 1984-10-05 | 1993-01-13 | Olympus Optical Co., Ltd. | Compound magnetic head |
JPS61145718A (ja) * | 1984-12-19 | 1986-07-03 | Nec Corp | 複合薄膜磁気ヘツド |
US4783711A (en) * | 1985-07-12 | 1988-11-08 | Hitachi, Ltd. | Magnetoresistive sensor having magnetic shields of ferrite |
US4843506A (en) * | 1986-09-29 | 1989-06-27 | Hewlett-Packard Company | Shields of magnetoresistive transducers |
EP0262925A3 (en) * | 1986-09-29 | 1989-07-26 | Hewlett-Packard Company | Transducer shield |
US4967298A (en) * | 1987-02-17 | 1990-10-30 | Mowry Greg S | Magnetic head with magnetoresistive sensor, inductive write head, and shield |
US4891725A (en) * | 1987-02-17 | 1990-01-02 | Magnetic Peripherals Inc. | Magnetoresistive sensor having antiferromagnetic exchange-biased ends |
US4803580A (en) * | 1987-02-17 | 1989-02-07 | Magnetic Peripherals Inc. | Double-gap magnetoresistive head having an elongated central write/shield pole completely shielding the magnetoresistive sensor strip in the read gap |
JPS63317914A (ja) * | 1987-06-19 | 1988-12-26 | Fujitsu Ltd | 薄膜磁気ヘッド |
JP2546875B2 (ja) * | 1988-03-02 | 1996-10-23 | 株式会社日立製作所 | 磁気抵抗効果型ヘッド |
JPH02168408A (ja) * | 1988-09-19 | 1990-06-28 | Hitachi Ltd | 記録再生用磁気ヘッドおよびその製造方法 |
JP2761223B2 (ja) * | 1988-09-30 | 1998-06-04 | 株式会社日立製作所 | 記録再生複合ヘッド及びその製造方法 |
US5264980A (en) * | 1989-08-02 | 1993-11-23 | Seagate Technology, Inc. | Magnetoresistive head and head setting method |
US5073836A (en) * | 1989-10-05 | 1991-12-17 | Hewlett-Packard Company | Single pole write and a differential magneto-resistive read for perpendicular recording |
JP3200060B2 (ja) * | 1990-09-12 | 2001-08-20 | ソニー株式会社 | 薄膜磁気ヘッド |
US5241439A (en) * | 1991-07-02 | 1993-08-31 | U.S. Philips Corporation | Combined read/write thin film magnetic head with two pairs of flux guides |
US5264981A (en) * | 1991-08-14 | 1993-11-23 | International Business Machines Corporation | Multilayered ferromagnetic film and magnetic head employing the same |
KR930008725A (ko) * | 1991-10-01 | 1993-05-21 | 프레데릭 얀 스미트 | 자기기록 운반체상의 트랙으로부터 디지탈 신호를 재생시키는 장치 |
JP2662334B2 (ja) * | 1992-01-28 | 1997-10-08 | ティーディーケイ株式会社 | 薄膜磁気ヘッド |
JP2768372B2 (ja) * | 1992-04-20 | 1998-06-25 | 日本電気株式会社 | 複合型薄膜磁気ヘッド |
US5323285A (en) * | 1992-06-23 | 1994-06-21 | Eastman Kodak Company | Shielded dual element magnetoresistive reproduce head exhibiting high density signal amplification |
JPH06168556A (ja) * | 1992-08-25 | 1994-06-14 | Internatl Business Mach Corp <Ibm> | 変換器及び懸架部の組合せアセンブリ、及びその処理方法並びに該アセンブリを有するデータ処理装置 |
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 |
JPH06259729A (ja) * | 1993-03-03 | 1994-09-16 | Tdk Corp | 磁気ヘッド |
JP3172000B2 (ja) * | 1993-03-11 | 2001-06-04 | 株式会社東芝 | 磁気記録再生装置 |
US5408373A (en) * | 1993-03-15 | 1995-04-18 | International Business Machines Corporation | Integrated transducer-suspension assembly for vertical recording |
US5585198A (en) * | 1993-10-20 | 1996-12-17 | Sanyo Electric Co., Ltd. | Magnetorsistance effect element |
US5736921A (en) * | 1994-03-23 | 1998-04-07 | Sanyo Electric Co., Ltd. | Magnetoresistive element |
US5656381A (en) * | 1993-03-24 | 1997-08-12 | Sanyo Electric Co., Ltd. | Magnetoresistance-effect element |
JPH0737228A (ja) * | 1993-07-20 | 1995-02-07 | Sony Corp | 磁気抵抗効果型薄膜磁気ヘッド |
JP2854513B2 (ja) * | 1993-10-21 | 1999-02-03 | アルプス電気株式会社 | 複合型薄膜磁気ヘッド及びその製造方法 |
US5739991A (en) * | 1994-02-01 | 1998-04-14 | Sanyo Electric Co., Ltd. | Composite thin film head having magnetoresistive and inductive head portions with nonmagnetic thin film interposed between core and shield portions of core layer |
US5446613A (en) * | 1994-02-28 | 1995-08-29 | Read-Rite Corporation | Magnetic head assembly with MR sensor |
US5695858A (en) * | 1994-03-23 | 1997-12-09 | Sanyo Electric Co., Ltd. | Magnetoresistive element |
JP3267046B2 (ja) * | 1994-04-21 | 2002-03-18 | 株式会社日立製作所 | 磁気記憶装置 |
JPH07334819A (ja) * | 1994-06-07 | 1995-12-22 | Alps Electric Co Ltd | 薄膜磁気ヘッド |
JPH0849062A (ja) * | 1994-08-04 | 1996-02-20 | Sanyo Electric Co Ltd | 磁気抵抗効果膜 |
JPH08130337A (ja) * | 1994-09-09 | 1996-05-21 | Sanyo Electric Co Ltd | 磁気抵抗素子及びその製造方法 |
SG34292A1 (en) * | 1994-12-30 | 1996-12-06 | Ibm | Read/write magnetoresistive (MR) head with sunken components |
US5790341A (en) * | 1995-09-20 | 1998-08-04 | International Business Machines Corporation | Method and apparatus for reducing servo interference in a magneto-resistive head using skew between head and servo pattern |
US5923502A (en) * | 1995-12-21 | 1999-07-13 | International Business Machines Corporation | Magneto-resistive head including a selectively placed low-reluctance path between shields |
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 |
US5917670A (en) * | 1996-10-15 | 1999-06-29 | Quantum Corporation | Method for recovering data from disk with magneto-resistive head in presence of thermal asperities |
JP3188232B2 (ja) | 1997-12-09 | 2001-07-16 | アルプス電気株式会社 | 薄膜磁気ヘッドおよびその製造方法 |
JP2001067634A (ja) * | 1999-08-26 | 2001-03-16 | Mitsumi Electric Co Ltd | 磁気ヘッド装置 |
US6600636B1 (en) | 1999-10-12 | 2003-07-29 | Maxtor Corporation | Magnetic head with write element offset from read element |
US20030117749A1 (en) * | 2001-12-20 | 2003-06-26 | Shukh Alexander M. | Perpendicular read/write head for use in a disc drive storage system |
KR100455296B1 (ko) * | 2002-05-15 | 2004-11-06 | 삼성전자주식회사 | 자기재생헤드 |
JP3799322B2 (ja) * | 2002-11-15 | 2006-07-19 | 株式会社日立グローバルストレージテクノロジーズ | 磁気ディスク装置 |
JP4247107B2 (ja) * | 2003-12-24 | 2009-04-02 | ヒタチグローバルストレージテクノロジーズネザーランドビーブイ | 磁気ヘッド及びそれを搭載した磁気記録再生装置 |
US7289297B1 (en) * | 2004-06-07 | 2007-10-30 | Storage Technology Corporation | Multilayered ferromagnetic laminate having alternating cobalt alloy and iron-nitrogen alloy films for use with magnetic heads |
JP2006164356A (ja) * | 2004-12-03 | 2006-06-22 | Hitachi Global Storage Technologies Netherlands Bv | 磁気ヘッド及び磁気記録再生装置 |
JP3988771B2 (ja) * | 2005-02-10 | 2007-10-10 | Tdk株式会社 | 複合型薄膜磁気ヘッド、磁気ヘッドアセンブリ及び磁気ディスクドライブ装置 |
US20060250726A1 (en) * | 2005-05-09 | 2006-11-09 | Hitachi Global Storage Technologies Netherlands B. V. | Shield structure in magnetic recording heads |
US20070081277A1 (en) * | 2005-10-06 | 2007-04-12 | Hitachi Global Storage Technologies Netherlands, B.V. | Method and apparatus for reducing shield noise in magnetoresistive sensors |
US8378667B2 (en) * | 2009-05-22 | 2013-02-19 | Tdw Delaware Inc. | System and method for detecting the passage of an object in pipeline including shielded magnetometer and a microcontroller with adaptive thresholding detection means |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2165206A5 (sv) * | 1971-12-22 | 1973-08-03 | Cii | |
BE792917A (fr) * | 1971-12-27 | 1973-04-16 | Ibm | Tete de transduction magnetique |
US3908194A (en) * | 1974-08-19 | 1975-09-23 | Ibm | Integrated magnetoresistive read, inductive write, batch fabricated magnetic head |
-
1975
- 1975-06-02 US US05/583,226 patent/US3975772A/en not_active Expired - Lifetime
-
1976
- 1976-04-26 GB GB16804/76A patent/GB1481939A/en not_active Expired
- 1976-05-14 JP JP51054510A patent/JPS5836406B2/ja not_active Expired
- 1976-05-15 DE DE19762621790 patent/DE2621790A1/de active Granted
- 1976-05-26 SE SE7606005A patent/SE413120B/sv unknown
- 1976-05-26 NL NL7605717A patent/NL7605717A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
JPS51148411A (en) | 1976-12-20 |
DE2621790A1 (de) | 1976-12-16 |
GB1481939A (en) | 1977-08-03 |
DE2621790C2 (sv) | 1988-12-22 |
US3975772A (en) | 1976-08-17 |
SE413120B (sv) | 1980-04-14 |
NL7605717A (nl) | 1976-12-06 |
JPS5836406B2 (ja) | 1983-08-09 |
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