DE69831999D1 - Magnetkopf und Herstellungsverfahren - Google Patents

Magnetkopf und Herstellungsverfahren

Info

Publication number
DE69831999D1
DE69831999D1 DE69831999T DE69831999T DE69831999D1 DE 69831999 D1 DE69831999 D1 DE 69831999D1 DE 69831999 T DE69831999 T DE 69831999T DE 69831999 T DE69831999 T DE 69831999T DE 69831999 D1 DE69831999 D1 DE 69831999D1
Authority
DE
Germany
Prior art keywords
manufacturing process
magnetic head
magnetic
head
manufacturing
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
DE69831999T
Other languages
English (en)
Other versions
DE69831999T2 (de
Inventor
Takao Koshikawa
Atsuhiko Nagai
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.)
Toshiba Storage Device Corp
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE69831999D1 publication Critical patent/DE69831999D1/de
Application granted granted Critical
Publication of DE69831999T2 publication Critical patent/DE69831999T2/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
    • G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with 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
    • G11B5/127—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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/1272—Assembling or shaping of 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface
    • 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
    • G11B5/23—Gap features
    • 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
    • G11B5/255—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for protection against wear
    • 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
    • G11B5/3106—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing where the integrated or assembled structure comprises means for conditioning against physical detrimental influence, e.g. wear, contamination
    • 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
    • G11B5/3109—Details
    • 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
    • G11B5/3109—Details
    • G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks
    • 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
    • G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic 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
    • G11B5/40—Protective measures on heads, e.g. against excessive temperature 
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
    • Y10T29/49041—Fabricating head structure or component thereof including measuring or testing with significant slider/housing shaping or treating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
    • Y10T29/49043—Depositing magnetic layer or coating
    • Y10T29/49044—Plural magnetic deposition layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
    • Y10T29/49043—Depositing magnetic layer or coating
    • Y10T29/49046—Depositing magnetic layer or coating with etching or machining of magnetic material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
    • Y10T29/49052—Machining magnetic material [e.g., grinding, etching, polishing] by etching

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE69831999T 1997-04-25 1998-01-07 Magnetkopf und Herstellungsverfahren Expired - Fee Related DE69831999T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP10984597 1997-04-25
JP10984597 1997-04-25
JP35059397 1997-12-19
JP9350593A JPH117608A (ja) 1997-04-25 1997-12-19 磁気ヘッド及びその製造方法

Publications (2)

Publication Number Publication Date
DE69831999D1 true DE69831999D1 (de) 2005-12-01
DE69831999T2 DE69831999T2 (de) 2006-06-22

Family

ID=26449561

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69831999T Expired - Fee Related DE69831999T2 (de) 1997-04-25 1998-01-07 Magnetkopf und Herstellungsverfahren

Country Status (6)

Country Link
US (2) US5966277A (de)
EP (1) EP0874355B1 (de)
JP (1) JPH117608A (de)
KR (1) KR100287612B1 (de)
CN (1) CN1152368C (de)
DE (1) DE69831999T2 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10334409A (ja) * 1997-05-27 1998-12-18 Tdk Corp 薄膜磁気ヘッド
US6130809A (en) * 1998-04-10 2000-10-10 International Business Machines Corporation Write head before read head constructed merged magnetic head with track width and zero throat height defined by first pole tip
JP3484343B2 (ja) * 1998-04-28 2004-01-06 Ｔｄｋ株式会社 薄膜磁気ヘッドおよびその製造方法
JPH11339223A (ja) * 1998-05-26 1999-12-10 Tdk Corp 磁性層のエッチング方法、薄膜磁気ヘッドの磁極の形成方法および薄膜磁気ヘッドの製造方法
US6584676B1 (en) * 1998-07-24 2003-07-01 International Business Machines Corporation Method for manufacturing a pole tip trimmed read/write head structure
JP2000099920A (ja) * 1998-09-18 2000-04-07 Fujitsu Ltd 先端副磁極付き薄膜磁気ヘッド及びその製造方法
JP2000099919A (ja) * 1998-09-18 2000-04-07 Fujitsu Ltd 薄膜磁気ヘッド及びその製造方法
JP3180906B2 (ja) * 1998-11-12 2001-07-03 日本電気株式会社 磁気抵抗効果型複合ヘッドの製造方法
JP2000207707A (ja) 1999-01-08 2000-07-28 Hitachi Ltd 薄膜磁気ヘッド及びこれを用いた磁気ディスク装置
US6791794B2 (en) * 2000-09-28 2004-09-14 Nec Corporation Magnetic head having an antistripping layer for preventing a magnetic layer from stripping
US6385008B1 (en) * 1999-12-16 2002-05-07 International Business Machines Corporation Reduction of magnetic side writing in thin film magnetic heads using negative profiled pole tips
JP3594864B2 (ja) 2000-01-25 2004-12-02 Ｔｄｋ株式会社 薄膜磁気ヘッドの製造方法
US6651313B1 (en) 2000-10-06 2003-11-25 International Business Machines Corporation Method for manufacturing a magnetic head
US6778357B2 (en) 2000-11-10 2004-08-17 Seagate Technology Llc Electrodeposited high-magnetic-moment material at writer gap pole
US6678117B2 (en) * 2001-06-18 2004-01-13 Hitachi Global Storage Technologies Netherlands B.V. Magnetic transducer with bilayer pole piece structure with improved milling endpoint detection
US7199972B2 (en) * 2001-08-31 2007-04-03 Hitachi Global Storage Technologies Netherlands, B.V. Narrow write head pole tip fabricated by sidewall processing
JP2003187405A (ja) 2001-12-19 2003-07-04 Fujitsu Ltd 磁気ヘッドおよびその製造方法
US20030127424A1 (en) * 2002-01-08 2003-07-10 Seagate Technology Llc Method of fabricating magnetic recording heads using asymmetric focused-Ion-beam trimming
US6732421B2 (en) * 2002-03-22 2004-05-11 Seagate Technology Llc Method for producing magnetoresistive heads ion bombardment etch to stripe height
WO2003083837A1 (fr) 2002-04-01 2003-10-09 Fujitsu Limited Tete magnetique a couche mince et procede de production de cette derniere
US20040045671A1 (en) * 2002-09-10 2004-03-11 Ed Rejda Selective etching device
US6960281B2 (en) * 2003-03-21 2005-11-01 Headway Technologies, Inc. Method to make a wider trailing pole structure by self-aligned pole trim process
JP2005018836A (ja) * 2003-06-23 2005-01-20 Hitachi Ltd 磁気ヘッド及びその製造方法
JP2005285236A (ja) * 2004-03-30 2005-10-13 Fujitsu Ltd 磁気ヘッド構造
US7086139B2 (en) * 2004-04-30 2006-08-08 Hitachi Global Storage Technologies Netherlands B.V. Methods of making magnetic write heads using electron beam lithography
US8919795B2 (en) 2007-02-07 2014-12-30 Rassini, S.A. De C.V. Separated primary spring and secondary leaf suspension for vehicle
US7983002B2 (en) * 2007-06-26 2011-07-19 Seagate Technology Llc Wire-assisted magnetic write device with a gapped trailing shield
JP2010118099A (ja) * 2008-11-11 2010-05-27 Hitachi Global Storage Technologies Netherlands Bv 磁気ヘッド・スライダ及び磁気ヘッド・スライダの製造方法
US10957347B1 (en) 2020-01-10 2021-03-23 International Business Machines Corporation Thin film heating device in a write gap

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4436593A (en) * 1981-07-13 1984-03-13 Memorex Corporation Self-aligned pole tips
JPS61107515A (ja) * 1984-10-30 1986-05-26 Fujitsu Ltd 薄膜磁気ヘツド
JPH0622050B2 (ja) * 1984-12-21 1994-03-23 ソニー株式会社 薄膜磁気ヘツド
JP2753306B2 (ja) * 1988-03-18 1998-05-20 株式会社日立製作所 イオンビーム加工方法及び集束イオンビーム装置
US5643472A (en) * 1988-07-08 1997-07-01 Cauldron Limited Partnership Selective removal of material by irradiation
JP2754804B2 (ja) * 1989-11-20 1998-05-20 松下電器産業株式会社 薄膜磁気ヘッドの製造方法
US4992901A (en) * 1990-02-15 1991-02-12 Seagate Technology, Inc. Self aligned magnetic poles using sacrificial mask
US5200056A (en) * 1990-02-15 1993-04-06 Seagate Technology Inc. Method for aligning pole tips in a thin film head
FR2658646B1 (fr) * 1990-02-21 1995-07-13 Commissariat Energie Atomique Procede de realisation d'une tete magnetique a deux materiaux magnetiques, et tete obtenue par ce procede.
JP3639603B2 (ja) * 1991-06-03 2005-04-20 株式会社日立製作所 磁気ディスク装置
EP0452846B1 (de) * 1990-04-16 1996-02-28 Hitachi, Ltd. Dünnfilm-Magnetkopf mit schmaler Spurbreite und dessen Herstellungsverfahren
JPH05303719A (ja) * 1992-04-27 1993-11-16 Fujitsu Ltd 薄膜磁気ヘッドおよびその製造方法
JP3578471B2 (ja) * 1993-06-08 2004-10-20 アルプス電気株式会社 薄膜磁気ヘッド
DE4421517A1 (de) * 1993-06-28 1995-01-05 Schlumberger Technologies Inc Verfahren zum Abtrag oder Auftrag von Material mittels eines Partikelstrahls und Vorrichtung zu seiner Durchführung
DE69418551T2 (de) * 1993-08-27 1999-09-16 Read-Rite Corp., Milpitas Magnetkopfzusammenbau mit Schreibpol-/Abschirmstruktur
US5559653A (en) * 1993-12-10 1996-09-24 Yamaha Corporation Thin film magnetic head having a multilayer upper core
US5438747A (en) * 1994-03-09 1995-08-08 International Business Machines Corporation Method of making a thin film merged MR head with aligned pole tips
JP3267046B2 (ja) * 1994-04-21 2002-03-18 株式会社日立製作所 磁気記憶装置
JPH0850705A (ja) * 1994-08-05 1996-02-20 Fuji Elelctrochem Co Ltd 薄膜磁気ヘッド及びその製造方法
JPH08102014A (ja) * 1994-09-30 1996-04-16 Hitachi Ltd 薄膜磁気ヘッドの磁気コア形成方法
JP2001517348A (ja) * 1995-06-05 2001-10-02 松下寿電子工業株式会社 磁気抵抗読取ヘッド上の共有されるシールドに関連する、磁束強化された書込トランスデューサおよびそれを製造するためのプロセス
JPH0991623A (ja) * 1995-09-19 1997-04-04 Hitachi Ltd 磁気抵抗効果型磁気ヘッド及びその製造方法
US5916424A (en) * 1996-04-19 1999-06-29 Micrion Corporation Thin film magnetic recording heads and systems and methods for manufacturing the same
US5874010A (en) * 1996-07-17 1999-02-23 Headway Technologies, Inc. Pole trimming technique for high data rate thin film heads
US5793578A (en) * 1996-11-15 1998-08-11 International Business Machines Corporation Thin film induction recording head having an inset first insulation layer that defines zero throat height and pole tip apex angle
US5804085A (en) * 1997-01-30 1998-09-08 Quantum Corporation Process for producing a pole-trimmed writer in a magnetoresistive read/write head and a data transducer made thereby
US5916423A (en) * 1997-05-06 1999-06-29 International Business Machines Corporation P1 notched write head with minimum overmilled p1 and p2

Also Published As

Publication number Publication date
JPH117608A (ja) 1999-01-12
EP0874355A2 (de) 1998-10-28
KR19980079618A (ko) 1998-11-25
US5966277A (en) 1999-10-12
CN1152368C (zh) 2004-06-02
DE69831999T2 (de) 2006-06-22
US6199267B1 (en) 2001-03-13
KR100287612B1 (ko) 2001-05-02
EP0874355A3 (de) 1999-08-04
EP0874355B1 (de) 2005-10-26
CN1197977A (zh) 1998-11-04

Similar Documents

Publication Publication Date Title
DE69831999D1 (de) Magnetkopf und Herstellungsverfahren
DE69821278D1 (de) Magnetkern und Herstellungsverfahren
DE69929456D1 (de) Nahfeldabtastkopf und herstellungsverfahren
DE69528938D1 (de) Induktivität und Herstellungsverfahren
DE69808948D1 (de) Stossfänger und herstellungsverfahren
DE69808363D1 (de) Pulverkern, ferromagnetische Pulverzusammenstellung dafür, und Herstellungsverfahren
DE69524215D1 (de) Retroreflektierender körper und herstellungsverfahren
DE69834561D1 (de) Halbleiteranordnung und herstellungsverfahren dafür
DE69936461D1 (de) Magnetsensor und zugehöriges herstellungsverfahren
DE69826975D1 (de) Thermoelektrisches element und herstellungsverfahren dafür
DE69715366D1 (de) Bügeleisenhandgriff und Herstellungsverfahren
DE69530151D1 (de) Magnetlegierung und seiner Herstellungsverfahren
DE69904731D1 (de) Feinzerkleinerer und feinzerkleinerungsverfahren
DE69813093D1 (de) Amorphes Magnetmaterial und Magnetkern davon
DE69500633D1 (de) Hülsenförmiger-Informationsträger und Herstellungsverfahren
DE69700656D1 (de) Senkrechter magnetkopf mit integrierter spule und herstellungsverfahren
DE69508881D1 (de) Tintenstrahlkopf und Herstellungsverfahren
DE69837307D1 (de) Verbinder und Herstellungsverfahren
DE69917735D1 (de) Magnetrongerät und Herstellungsverfahren
DE69516442D1 (de) Magnetoresistiver Kopf und Herstellungsverfahren
ID30074A (id) Magnetic head dan metode produksinya
DE69518097D1 (de) Vertikaler Magnetkopf und Herstellungsverfahren
DE69521965D1 (de) Magnetkopf und herstellungsverfahren
DE69914673D1 (de) Magnetkopfträger und Betätigungsvorrichtung
DE69714408D1 (de) Magnetischer Mikroschalter und Herstellungsverfahren

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: TOSHIBA STORAGE DEVICE CORP., TOKYO, JP

8339 Ceased/non-payment of the annual fee