DE3277946D1 - Multitrack transducer for perpendicular recording and method for fabricating - Google Patents

Multitrack transducer for perpendicular recording and method for fabricating

Info

Publication number
DE3277946D1
DE3277946D1 DE8282902007T DE3277946T DE3277946D1 DE 3277946 D1 DE3277946 D1 DE 3277946D1 DE 8282902007 T DE8282902007 T DE 8282902007T DE 3277946 T DE3277946 T DE 3277946T DE 3277946 D1 DE3277946 D1 DE 3277946D1
Authority
DE
Germany
Prior art keywords
fabricating
perpendicular recording
multitrack
transducer
multitrack transducer
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
Application number
DE8282902007T
Other languages
English (en)
Inventor
Harold J Hamilton
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.)
Censtor Corp
Original Assignee
Censtor Corp
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 Censtor Corp filed Critical Censtor Corp
Application granted granted Critical
Publication of DE3277946D1 publication Critical patent/DE3277946D1/de
Expired 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
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • 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
    • G11B5/335—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only with saturated jig, e.g. for detecting second harmonic; balanced flux head
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE8282902007T 1981-05-06 1982-05-06 Multitrack transducer for perpendicular recording and method for fabricating Expired DE3277946D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/260,899 US4423450A (en) 1981-05-06 1981-05-06 Magnetic head and multitrack transducer for perpendicular recording and method for fabricating
PCT/US1982/000613 WO1982003938A1 (en) 1981-05-06 1982-05-06 Magnetic head and multitrack transducer for perpendicular recording and method for fabricating

Publications (1)

Publication Number Publication Date
DE3277946D1 true DE3277946D1 (en) 1988-02-11

Family

ID=22991114

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19823242692 Granted DE3242692T1 (de) 1981-05-06 1982-05-06 Magnetkopf und mehrspuriger Wandler zum senkrechten Aufzeichnen und Verfahren zu dessen Herstellung
DE8282902007T Expired DE3277946D1 (en) 1981-05-06 1982-05-06 Multitrack transducer for perpendicular recording and method for fabricating

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19823242692 Granted DE3242692T1 (de) 1981-05-06 1982-05-06 Magnetkopf und mehrspuriger Wandler zum senkrechten Aufzeichnen und Verfahren zu dessen Herstellung

Country Status (7)

Country Link
US (1) US4423450A (de)
EP (1) EP0077832B1 (de)
JP (1) JPS58501151A (de)
DE (2) DE3242692T1 (de)
GB (1) GB2111741B (de)
NL (1) NL8220214A (de)
WO (1) WO1982003938A1 (de)

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US5521774A (en) * 1994-03-18 1996-05-28 Cartesian Data, Inc. Memory storage module for storing and accessing
US6198607B1 (en) 1995-12-22 2001-03-06 Censtor Corporation Contact planar magnetoresistive head
US5978186A (en) * 1996-03-14 1999-11-02 Matsushita Electric Industrial Co., Ltd. Magnetic head and reproducing apparatus with head having central core with winding thereabout and wire therethrough
US7170719B1 (en) * 1998-04-28 2007-01-30 Maxtor Corporation Magnetic storage device with flux-guided magnetoresistive head using a perpendicular recording media
US6455174B1 (en) * 1998-11-05 2002-09-24 Hitachi Maxell, Ltd. Magnetic recording medium, recording and reproducing head, and magnetic recording and reproducing method
US6771462B1 (en) 1999-09-20 2004-08-03 Seagate Technology Llc Perpendicular recording head including concave tip
US6898053B1 (en) 1999-10-26 2005-05-24 Seagate Technology Llc Perpendicular recording head with trackwidth defined by plating thickness
US6560069B1 (en) 1999-11-29 2003-05-06 Seagate Technology, Llc Perpendicular recording head defining the trackwidth by material deposition thickness
US6816339B1 (en) * 2000-01-10 2004-11-09 Seagate Technology Llc Perpendicular magnetic recording head with longitudinal magnetic field generator to facilitate magnetization switching
US6667848B1 (en) * 2000-01-10 2003-12-23 Seagate Technology Llc Perpendicular magnetic recording head with means for suppressing noise from soft magnetic underlayer of recording media
US6707642B1 (en) * 2000-02-04 2004-03-16 Seagate Technology Llc Longitudinal magnetic recording head with reduced side fringing
US6621664B1 (en) 2000-02-28 2003-09-16 Seagate Technology Llc Perpendicular recording head having integrated read and write portions
US6693768B1 (en) * 2000-03-15 2004-02-17 Seagate Technology Llc Perpendicular magnetic recording head having a flux focusing main pole
US6798615B1 (en) * 2000-03-24 2004-09-28 Seagate Technology Llc Perpendicular recording head with return poles which reduce flux antenna effect
US6721131B2 (en) * 2001-03-15 2004-04-13 Seagate Technology Llc Composite write pole for a magnetic recording head
US6687085B2 (en) 2001-07-17 2004-02-03 Seagate Technology Llc Perpendicular write head with high magnetization pole material and method of fabricating the write head
US6809899B1 (en) 2001-08-20 2004-10-26 Western Digital (Fremont), Inc. Magnetic heads for perpendicular recording with trapezoidal pole tips
JP4030961B2 (ja) * 2001-10-19 2008-01-09 シーゲイト テクノロジー エルエルシー 多層主書込み極を備えた垂直磁気記録ヘッド
US20030128633A1 (en) * 2002-01-08 2003-07-10 Seagate Technology Llc Heat assisted magnetic recording head with hybrid write pole
US6842313B1 (en) 2002-04-08 2005-01-11 Maxtor Corporation Floating down stream perpendicular write head shield
US6813115B2 (en) 2002-04-18 2004-11-02 Seagate Technology Llc Perpendicular magnetic recording head with improved write field gradient
US7075756B1 (en) 2002-11-07 2006-07-11 Maxtor Corporation Shielded pole writer
US7729092B1 (en) 2002-11-07 2010-06-01 Seagate Technology Llc Shielded pole writer under reader
US7149045B1 (en) 2002-11-07 2006-12-12 Maxtor Corporation Longitudinal media with soft underlayer and perpendicular write head
JP2004171664A (ja) * 2002-11-20 2004-06-17 Tdk Corp 磁気記録媒体および磁気記録再生システム
US7259927B2 (en) * 2003-07-14 2007-08-21 Agere Systems, Inc. Method and apparatus for improving signal-to-noise ratio for hard disk drives
US7070716B2 (en) * 2003-07-28 2006-07-04 Hitachi Global Storage Technologies Netherlands B.V. Method for providing transverse magnetic bias proximate to a pole tip to speed up the switching time of the pole-tip during the writing operation
US7057849B2 (en) * 2003-12-31 2006-06-06 Esgw Holding Limited Data storage device with dampers
US7588842B1 (en) 2004-09-02 2009-09-15 Maxtor Corporation Perpendicular magnetic recording medium with a pinned soft underlayer
JP4113879B2 (ja) * 2005-02-04 2008-07-09 Ｔｄｋ株式会社 垂直磁気記録ヘッドおよび磁気記録装置
KR100682930B1 (ko) * 2005-02-07 2007-02-15 삼성전자주식회사 자기헤드
US7595959B2 (en) * 2005-06-29 2009-09-29 Seagate Technology Llc Recording heads including a magnetically damped write pole and recording systems including such heads
US8929030B2 (en) * 2007-03-15 2015-01-06 Seagate Technology Llc Magnetic writer for field assisted magnetic recording
US8134801B2 (en) * 2007-03-19 2012-03-13 Dimambro Bryan Electromagnetic data storage devices
KR20090022188A (ko) * 2007-08-29 2009-03-04 삼성전자주식회사 자기헤드, 자기기록매체 및 이를 채용한 자기기록장치
US8542460B2 (en) * 2008-03-12 2013-09-24 International Business Machines Corporation Head for tape drive with transversely varying contour
US8243385B2 (en) * 2008-04-29 2012-08-14 International Business Machines Corporation Magnetic head having first, second and third arrays of writers
US7986488B2 (en) * 2008-12-04 2011-07-26 Hitachi Global Storage Technologies Netherlands B.V. Magnetic recording disk and disk drive with alternating single-polarity position error signal (PES) blocks for read/write head positioning
US8861132B2 (en) 2010-07-06 2014-10-14 International Business Machines Corporation Low friction tape head and system implementing same
US8679733B2 (en) 2011-01-19 2014-03-25 International Business Machines Corporation Patterning process for small devices
US8693127B2 (en) * 2011-01-27 2014-04-08 International Business Machines Corporation Writing timing-based servo patterns in perpendicular and non-oriented magnetic media
US8373944B2 (en) 2011-05-26 2013-02-12 International Business Machines Corporation Low friction tape head and system implementing same
US9099108B2 (en) 2011-07-06 2015-08-04 Seagate Technology Llc Magnetically biased write pole
US9183859B1 (en) * 2014-11-11 2015-11-10 Western Digital (Fremont), Llc HAMR writer pole length characterization

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DE1059196B (de) * 1954-09-28 1959-06-11 Licentia Gmbh Schreibkopf fuer nach dem Grenzlinien-verschiebungsverfahren arbeitende Magnetband-Oszillographen
US2905770A (en) * 1956-01-19 1959-09-22 Clevite Corp Flux responsive magnetic reproducer head
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FR1289622A (fr) * 1961-02-24 1962-04-06 Compteurs Comp D Dispositif à mémoire magnétique statique
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US3414893A (en) * 1965-07-15 1968-12-03 Burroughs Corp Multichannel transducing head with selectable flux paths
US3454727A (en) * 1965-12-06 1969-07-08 Lockheed Aircraft Corp Plural track flux gate transducer head with common excitation means
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US3810191A (en) * 1972-10-26 1974-05-07 Honeywell Inc Multi-stylus through field recording head
JPS49121512A (de) * 1973-03-22 1974-11-20
US4138702A (en) * 1975-01-23 1979-02-06 Compagnie Honeywell Bull Head arrangement for perpendicular recording information on a magnetic record carrier
JPS5282318A (en) * 1975-12-29 1977-07-09 Teac Corp Magnetic head and method of producing same
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Also Published As

Publication number Publication date
DE3242692C2 (de) 1993-09-02
EP0077832A1 (de) 1983-05-04
EP0077832A4 (de) 1983-09-02
WO1982003938A1 (en) 1982-11-11
NL8220214A (nl) 1983-04-05
EP0077832B1 (de) 1988-01-07
GB2111741B (en) 1986-04-16
GB2111741A (en) 1983-07-06
JPH0522286B2 (de) 1993-03-29
US4423450A (en) 1983-12-27
DE3242692T1 (de) 1984-10-18
JPS58501151A (ja) 1983-07-14
GB8300278D0 (en) 1983-02-09

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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