JP2002216325A - 複合型磁気ヘッド、これを用いた磁気ディスク装置及び磁気ディスク装置の制御方法 - Google Patents

複合型磁気ヘッド、これを用いた磁気ディスク装置及び磁気ディスク装置の制御方法

Info

Publication number
JP2002216325A
JP2002216325A JP2001008432A JP2001008432A JP2002216325A JP 2002216325 A JP2002216325 A JP 2002216325A JP 2001008432 A JP2001008432 A JP 2001008432A JP 2001008432 A JP2001008432 A JP 2001008432A JP 2002216325 A JP2002216325 A JP 2002216325A
Authority
JP
Japan
Prior art keywords
reproducing
recording
magnetic head
composite 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.)
Pending
Application number
JP2001008432A
Other languages
English (en)
Japanese (ja)
Other versions
JP2002216325A5 (enExample
Inventor
Reijirou Tsuchiya
鈴二朗 土屋
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2001008432A priority Critical patent/JP2002216325A/ja
Priority to US09/956,976 priority patent/US6816344B2/en
Priority to US09/956,977 priority patent/US6765740B2/en
Publication of JP2002216325A publication Critical patent/JP2002216325A/ja
Priority to US10/964,698 priority patent/US7271970B2/en
Publication of JP2002216325A5 publication Critical patent/JP2002216325A5/ja
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
    • 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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • 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
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • G11B5/2652—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative
    • 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
    • G11B5/3103—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
    • 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
    • G11B5/3909—Arrangements using a magnetic tunnel junction
    • 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
    • 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
    • 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
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • G11B5/4886—Disposition of heads relative to rotating disc
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/49—Fixed mounting or arrangements, e.g. one head per track
    • G11B5/4969—Details for track selection or addressing
    • G11B5/4984—Structure of specially adapted switching heads
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
    • G11B2005/0013—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation
    • G11B2005/0016—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation of magnetoresistive transducers
    • 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
    • G11B2005/3996—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 large or giant magnetoresistive effects [GMR], e.g. as generated in spin-valve [SV] devices
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816—Testing
    • G11B2020/183—Testing wherein at least one additional attempt is made to read or write the data when a first attempt is unsuccessful
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Magnetic Heads (AREA)
  • Digital Magnetic Recording (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
JP2001008432A 2001-01-17 2001-01-17 複合型磁気ヘッド、これを用いた磁気ディスク装置及び磁気ディスク装置の制御方法 Pending JP2002216325A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2001008432A JP2002216325A (ja) 2001-01-17 2001-01-17 複合型磁気ヘッド、これを用いた磁気ディスク装置及び磁気ディスク装置の制御方法
US09/956,976 US6816344B2 (en) 2001-01-17 2001-09-21 Composite magnetic head arranged so the reproducing elements do not overlap a pole of a recording element
US09/956,977 US6765740B2 (en) 2001-01-17 2001-09-21 Composite magnetic head, magnetic disk drive using the head, and control method for the magnetic disk
US10/964,698 US7271970B2 (en) 2001-01-17 2004-10-15 Composite magnetic head arranged so the reproducing elements do not overlap a pole of a recording element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001008432A JP2002216325A (ja) 2001-01-17 2001-01-17 複合型磁気ヘッド、これを用いた磁気ディスク装置及び磁気ディスク装置の制御方法

Publications (2)

Publication Number Publication Date
JP2002216325A true JP2002216325A (ja) 2002-08-02
JP2002216325A5 JP2002216325A5 (enExample) 2008-02-07

Family

ID=18876051

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001008432A Pending JP2002216325A (ja) 2001-01-17 2001-01-17 複合型磁気ヘッド、これを用いた磁気ディスク装置及び磁気ディスク装置の制御方法

Country Status (2)

Country Link
US (3) US6765740B2 (enExample)
JP (1) JP2002216325A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008198326A (ja) * 2007-01-17 2008-08-28 Hitachi Ltd 磁気ヘッドおよびこれを搭載した磁気ディスク装置
JP2014207039A (ja) * 2013-04-12 2014-10-30 昭和電工株式会社 磁気ヘッド、磁気記憶装置及び磁気記憶装置の製造方法
JP7516128B2 (ja) 2020-06-23 2024-07-16 株式会社東芝 磁気ディスク装置及びリード処理方法

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7562285B2 (en) 2006-01-11 2009-07-14 Rambus Inc. Unidirectional error code transfer for a bidirectional data link
US8352805B2 (en) 2006-05-18 2013-01-08 Rambus Inc. Memory error detection
US20070271495A1 (en) * 2006-05-18 2007-11-22 Ian Shaeffer System to detect and identify errors in control information, read data and/or write data
US8139301B1 (en) 2009-07-22 2012-03-20 Western Digital (Fremont), Llc Disk drive comprising a dual read element and delay circuitry to improve read signal
US8508880B2 (en) 2011-02-16 2013-08-13 Seagate Technology Llc Transducer head with multiple read sensors
US8711517B2 (en) 2012-04-27 2014-04-29 Seagate Technology Llc Two dimensional magnetic sensor immune to skew angle misalignment
US8913345B1 (en) * 2012-08-29 2014-12-16 Marvell International Ltd. System and method for reading data from a magnetic medium by utilizing plural read sensors which define an effective read width
US20140177102A1 (en) 2012-12-21 2014-06-26 Seagate Technology Llc Multi-reader method and apparatus
US9431039B1 (en) 2013-05-21 2016-08-30 Western Digital (Fremont), Llc Multiple sensor array usable in two-dimensional magnetic recording
US8891207B1 (en) 2013-06-07 2014-11-18 Western Digital (Fremont), Llc Connection schemes for a multiple sensor array usable in two-dimensional magnetic recording
US9147431B2 (en) 2013-08-06 2015-09-29 Seagate Technology Llc Multi-sensor data transducer
US8908333B1 (en) 2013-08-13 2014-12-09 Western Digital (Fremont), Llc Shield designed for middle shields in a multiple sensor array
US9431032B1 (en) 2013-08-14 2016-08-30 Western Digital (Fremont), Llc Electrical connection arrangement for a multiple sensor array usable in two-dimensional magnetic recording
US9135935B1 (en) 2013-10-11 2015-09-15 Western Digital Technologies, Inc. Customized head gimbal assembly bonding skew angle for adjusting two-dimensional magnetic recording reader alignment
US9042058B1 (en) 2013-10-17 2015-05-26 Western Digital Technologies, Inc. Shield designed for middle shields in a multiple sensor array
US8988812B1 (en) 2013-11-27 2015-03-24 Western Digital (Fremont), Llc Multi-sensor array configuration for a two-dimensional magnetic recording (TDMR) operation
US9257145B1 (en) 2013-11-27 2016-02-09 Western Digital Technologies, Inc. Disk drive measuring down-track spacing of read sensors
US8988802B1 (en) * 2013-12-09 2015-03-24 Seagate Technology Llc Requirement relaxation for multiple readers in presence of large skew angle range
US8970988B1 (en) 2013-12-31 2015-03-03 Western Digital (Fremont), Llc Electric gaps and method for making electric gaps for multiple sensor arrays
US9245556B2 (en) 2014-03-10 2016-01-26 Western Digital Technologies, Inc. Disk drive employing multiple read elements to increase radial band for two-dimensional magnetic recording
US9070406B1 (en) 2014-03-10 2015-06-30 Western Digital Technologies, Inc. Disk drive configuring one-dimensional and two-dimensional recording areas based on read element spacing
US9305596B2 (en) 2014-03-28 2016-04-05 Seagate Technology Llc Multi-sensor media defect scan
US9053727B1 (en) 2014-06-02 2015-06-09 Western Digital Technologies, Inc. Disk drive opening spiral crossing window based on DC and AC spiral track error
US9013824B1 (en) 2014-06-04 2015-04-21 Western Digital Technologies, Inc. Data storage device comprising dual read sensors and dual servo channels to improve servo demodulation
US9099125B1 (en) * 2014-10-14 2015-08-04 HGST Netherlands B.V. Current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) sensor structure with stacked sensors for minimization of the effect of head skew
US9087527B1 (en) 2014-10-28 2015-07-21 Western Digital (Fremont), Llc Apparatus and method for middle shield connection in magnetic recording transducers
US9786301B1 (en) 2014-12-02 2017-10-10 Western Digital (Fremont), Llc Apparatuses and methods for providing thin shields in a multiple sensor array
US9373355B1 (en) 2015-01-30 2016-06-21 Seagate Technology Llc Compensating for interference via a multi-reader system
US11361839B2 (en) 2018-03-26 2022-06-14 Rambus Inc. Command/address channel error detection
US11600296B1 (en) * 2021-12-22 2023-03-07 Kaizhong Gao Composite hard disk drive

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01139619A (ja) 1987-11-26 1989-06-01 Kansai Paint Co Ltd 光重合性組成物
US5065483A (en) * 1991-02-19 1991-11-19 International Business Machines Corporation Method of lapping magnetic recording heads
JPH04370511A (ja) * 1991-06-20 1992-12-22 Matsushita Electric Ind Co Ltd 積層型磁気抵抗ヘッド
US5212611A (en) * 1991-07-16 1993-05-18 Storage Technology Corporation Integral read/write recording head with dual gap dimension
JPH05166137A (ja) * 1991-12-16 1993-07-02 Hitachi Ltd 磁気ヘッドおよび記録再生装置
US5444589A (en) * 1993-12-02 1995-08-22 International Business Machines Corporation Rotary actuator disk drive with identical dual-element read/write transducers
EP0760998B1 (en) * 1995-03-24 2002-12-18 OnStream, Inc. Magnetic head and system for controlling the position of a magnetic head
KR100199191B1 (ko) * 1995-05-10 1999-06-15 윤종용 두개의 헤드 짐벌 어셈블리를 가지는 디스크 구동 기록장치 및 헤드스위칭제어 방법
JPH09102101A (ja) * 1995-07-31 1997-04-15 Toshiba Corp 磁気記録再生装置及び磁気記録再生装置に適用する磁気ヘッド装置
JP3520170B2 (ja) * 1996-04-02 2004-04-19 Ｔｄｋ株式会社 複合型薄膜磁気ヘッド
JPH10149519A (ja) 1996-11-15 1998-06-02 Read Rite S M I Kk 複合形薄膜磁気ヘッド
US6111708A (en) * 1996-12-11 2000-08-29 Tecmar Technologies, Inc. Apparatus and method for detecting read/write gap failure and switching to an alternative read/write gap
US5963400A (en) * 1997-02-21 1999-10-05 Storage Technology Corporation Thin film tape head including split top pole
JPH1139619A (ja) 1997-07-22 1999-02-12 Hitachi Ltd 磁気ヘッド及びそれを用いた磁気ディスク装置
US6157510A (en) * 1998-03-10 2000-12-05 Maxtor Corporation Magnetic storage device with multiple read elements which are offset laterally and longitudinally
US6195230B1 (en) * 1998-04-27 2001-02-27 Intel Corporation Disk head assembly with multiple read and/or write transducers for improved performance
US6362934B1 (en) * 1999-03-24 2002-03-26 Storage Technology Corporation Highly aligned thin film tape head and method of making same
JP2000339638A (ja) * 1999-05-24 2000-12-08 Matsushita Electric Ind Co Ltd 薄膜磁気ヘッドとそのスライダ及び磁気記録再生装置
JP2001143218A (ja) * 1999-11-18 2001-05-25 Hitachi Ltd 磁気ヘッド及びこれを用いた磁気ディスク装置
US6469875B1 (en) * 2000-03-15 2002-10-22 Headway Technologies, Inc. Stitched write head design having a sunken shared pole
JP2001331909A (ja) * 2000-05-23 2001-11-30 Tdk Corp 薄膜磁気ヘッドおよびその製造方法
US6646830B2 (en) * 2001-06-07 2003-11-11 International Business Machines Corporation Monolithic magnetic read-while-write head apparatus and method of manufacture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008198326A (ja) * 2007-01-17 2008-08-28 Hitachi Ltd 磁気ヘッドおよびこれを搭載した磁気ディスク装置
JP2014207039A (ja) * 2013-04-12 2014-10-30 昭和電工株式会社 磁気ヘッド、磁気記憶装置及び磁気記憶装置の製造方法
JP7516128B2 (ja) 2020-06-23 2024-07-16 株式会社東芝 磁気ディスク装置及びリード処理方法

Also Published As

Publication number Publication date
US20020131213A1 (en) 2002-09-19
US20020135919A1 (en) 2002-09-26
US20050134990A1 (en) 2005-06-23
US6765740B2 (en) 2004-07-20
US7271970B2 (en) 2007-09-18
US6816344B2 (en) 2004-11-09

Similar Documents

Publication Publication Date Title
JP2002216325A (ja) 複合型磁気ヘッド、これを用いた磁気ディスク装置及び磁気ディスク装置の制御方法
JP4286208B2 (ja) 垂直記録用磁気ヘッドとその製造方法及びそれを用いた磁気ディスク装置
US5406433A (en) Dual magnetoresistive head for reproducing very narrow track width short wavelength data
US20080212239A1 (en) Magnetic head and magnetic disk system having the same
JPH07134804A (ja) 記録再生装置及び記録再生方法
JP3551099B2 (ja) 磁気テープ装置用薄膜磁気ヘッド
JP2010080008A (ja) 再生磁気ヘッド
US6128160A (en) Head device having spin-valve read head for use in a disk storage apparatus
JP4247107B2 (ja) 磁気ヘッド及びそれを搭載した磁気記録再生装置
US5969896A (en) Magnetic recording/reproducing device with a function of correcting waveform of magnetoresistive-effect head
US5894384A (en) Magnetoresistance effect head in which a magnetoresistance effect element and a soft magnetic film form a single magnetic circuit
US20010028538A1 (en) Magnetoresistive sensor and magnetic storage apparatus
US6700758B2 (en) Magnetoresistive effect type of head, manufacturing method of magnetoresistive effect type of head, and information reproducing system
JP2006260756A (ja) 垂直磁気記録ヘッド及びそれを利用したデータ記録用の記録媒体
JP2008084430A (ja) 磁気ヘッド及び磁気記録装置
CN104240722A (zh) 磁头、磁记录再现装置及磁头的制造方法
JP3825418B2 (ja) 磁気ディスク装置
JP2001312803A (ja) 磁気ヘッド及び磁気ヘッドの製造方法
JPH07262525A (ja) 磁気抵抗効果型ヘッド及びこれを用いた磁気記録装置
US7118814B1 (en) Apparatus and method for step-stabilization of GMR-based read sensors
JPH1125425A (ja) 磁気ヘッド
JP3040891B2 (ja) 複合型磁気ヘッド
JP3266589B2 (ja) 複合型磁気ヘッド
JP3721173B2 (ja) 磁気ディスク装置の記録再生方法
JP2002222505A (ja) 磁気抵抗効果素子を用いた磁気ヘッド及び磁気再生装置

Legal Events

Date Code Title Description
RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20060510

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20060510

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20071212

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20071212

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20071212

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20090727

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090804

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20091201