DE69424456T2 - Magnetkopf und Verfahren für dessen Herstellung - Google Patents

Magnetkopf und Verfahren für dessen Herstellung

Info

Publication number
DE69424456T2
DE69424456T2 DE69424456T DE69424456T DE69424456T2 DE 69424456 T2 DE69424456 T2 DE 69424456T2 DE 69424456 T DE69424456 T DE 69424456T DE 69424456 T DE69424456 T DE 69424456T DE 69424456 T2 DE69424456 T2 DE 69424456T2
Authority
DE
Germany
Prior art keywords
magnetic
core halves
magnetic head
recess
coil
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
Application number
DE69424456T
Other languages
English (en)
Other versions
DE69424456D1 (de
Inventor
Hiroyuki Ohmori
Tetsuya Yamamoto
Yasunari Sugiyama
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.)
Sony Corp
Original Assignee
Sony 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
Priority claimed from JP6615593A external-priority patent/JPH06259717A/ja
Priority claimed from JP7211793A external-priority patent/JPH06282820A/ja
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69424456D1 publication Critical patent/DE69424456D1/de
Publication of DE69424456T2 publication Critical patent/DE69424456T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/21—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being of ferrous sheet metal or other magnetic layers
    • 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
    • G11B5/1274—Structure or manufacture of heads, e.g. inductive with "composite" cores, i.e. cores composed in some parts of magnetic particles and in some other parts of magnetic metal layers
    • 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
    • G11B5/17—Construction or disposition of 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
    • G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
    • 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
    • G11B5/52—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 with simultaneous movement of head and record carrier, e.g. rotation of head
    • G11B5/53—Disposition or mounting of heads on rotating support
    • G11B5/531—Disposition of more than one recording or reproducing head on support rotating cyclically around an axis
DE69424456T 1993-03-02 1994-03-01 Magnetkopf und Verfahren für dessen Herstellung Expired - Fee Related DE69424456T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6615593A JPH06259717A (ja) 1993-03-02 1993-03-02 磁気ヘッド及びその製造方法
JP7211793A JPH06282820A (ja) 1993-03-30 1993-03-30 多チャンネル磁気ヘッド及びその製造方法

Publications (2)

Publication Number Publication Date
DE69424456D1 DE69424456D1 (de) 2000-06-21
DE69424456T2 true DE69424456T2 (de) 2001-01-18

Family

ID=26407318

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69424456T Expired - Fee Related DE69424456T2 (de) 1993-03-02 1994-03-01 Magnetkopf und Verfahren für dessen Herstellung

Country Status (5)

Country Link
US (1) US5666249A (de)
EP (1) EP0614173B1 (de)
KR (1) KR100314168B1 (de)
AT (1) ATE193141T1 (de)
DE (1) DE69424456T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08508360A (ja) * 1993-03-16 1996-09-03 ダース デバイセズ インコーポレイテッド 空隙中金属のそして薄膜のハイブリッド読出し／書込みヘッド
JPH07169015A (ja) * 1993-12-10 1995-07-04 Sony Corp 磁気ヘッド
WO1995030984A1 (fr) * 1994-05-09 1995-11-16 Sony Corporation Tete magnetique et sa fabrication
JPH08203030A (ja) * 1995-01-25 1996-08-09 Sony Corp 磁気ヘッド装置及びその製造方法
JPH09245312A (ja) * 1996-03-07 1997-09-19 Sony Corp 磁気ヘッド及びその製造方法
FR2747226B1 (fr) * 1996-04-04 1998-04-30 Commissariat Energie Atomique Procedes de realisation d'une tete magnetique double a entrefers d'azimuts opposes
JPH09293207A (ja) * 1996-04-26 1997-11-11 Sony Corp 磁気ヘッド
JPH10302219A (ja) * 1997-04-30 1998-11-13 Fujitsu Ltd 薄膜磁気ヘッドおよび製造方法
JP2000293813A (ja) * 1999-04-08 2000-10-20 Sankyo Seiki Mfg Co Ltd 多チャンネル磁気ヘッド及びその製造方法及びそれを用いた磁気カードリーダ
US6496328B1 (en) 1999-12-30 2002-12-17 Advanced Research Corporation Low inductance, ferrite sub-gap substrate structure for surface film magnetic recording heads
US6989960B2 (en) * 1999-12-30 2006-01-24 Advanced Research Corporation Wear pads for timing-based surface film servo heads
US6859997B1 (en) 2000-09-19 2005-03-01 Western Digital (Fremont), Inc. Method for manufacturing a magnetic write element
US6861937B1 (en) 2002-06-25 2005-03-01 Western Digital (Fremont), Inc. Double winding twin coil for thin-film head writer
JP2004039074A (ja) * 2002-07-02 2004-02-05 Sony Corp マルチチャンネルヘッドの位置制御装置およびマルチチャンネルヘッドの位置制御方法
US8144424B2 (en) 2003-12-19 2012-03-27 Dugas Matthew P Timing-based servo verify head and magnetic media made therewith
JP2007536683A (ja) 2004-05-04 2007-12-13 アドバンスト・リサーチ・コーポレーション 任意形状のギャップ・パターンのための集積型薄膜サブギャップ／サブ磁極構造、磁気記録ヘッド、及びその製造方法
WO2009121073A1 (en) 2008-03-28 2009-10-01 Advanced Research Corporation Thin film planar arbitrary gap pattern magnetic head
WO2011014836A2 (en) 2009-07-31 2011-02-03 Advanced Research Corporation Erase drive systems and methods of erasure for tape data cartridge

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5584016A (en) * 1978-12-19 1980-06-24 Sony Corp Magnetic head and its manufacture
US4743988A (en) * 1985-02-01 1988-05-10 Victor Company Of Japan, Ltd. Thin-film magnetic head
JP2551749B2 (ja) * 1985-02-05 1996-11-06 日本ビクター株式会社 薄膜磁気ヘッドの製造方法
JPS6271010A (ja) * 1985-09-25 1987-04-01 Hitachi Ltd 磁気ヘツド
JPS6280816A (ja) * 1985-10-04 1987-04-14 Sony Corp 薄膜磁気ヘツド
EP0233086B1 (de) * 1986-02-13 1992-01-29 Sony Corporation Dünnschichtmagnetkopf
JPS62266708A (ja) * 1986-05-14 1987-11-19 Toshiba Corp 磁気ヘツド
FR2604021B1 (fr) * 1986-09-17 1988-10-28 Commissariat Energie Atomique Procede de realisation de tetes magnetiques en couches minces et a structure planaire et tete obtenue par ce procede
US5173825A (en) * 1986-10-15 1992-12-22 Canon Kabushiki Kaisha Magnetic head using magnetic oxide part and magnetic metal film
JPS63231713A (ja) * 1987-03-20 1988-09-27 Hitachi Ltd 磁気ヘツド
JPH01128213A (ja) * 1987-11-13 1989-05-19 Hitachi Ltd 金属薄膜磁気ヘッド
US5132861A (en) * 1989-10-02 1992-07-21 Behr Michael I Systems using superimposed, orthogonal buried servo signals
JPH0430308A (ja) * 1990-05-25 1992-02-03 Hitachi Ltd 磁気ヘッドおよびその製造方法

Also Published As

Publication number Publication date
ATE193141T1 (de) 2000-06-15
KR940022390A (ko) 1994-10-20
KR100314168B1 (ko) 2002-03-21
EP0614173B1 (de) 2000-05-17
US5666249A (en) 1997-09-09
EP0614173A3 (de) 1995-01-11
EP0614173A2 (de) 1994-09-07
DE69424456D1 (de) 2000-06-21

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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