JPS5584019A - Induction type thinnfilm transducer - Google Patents

Induction type thinnfilm transducer

Info

Publication number
JPS5584019A
JPS5584019A JP14450179A JP14450179A JPS5584019A JP S5584019 A JPS5584019 A JP S5584019A JP 14450179 A JP14450179 A JP 14450179A JP 14450179 A JP14450179 A JP 14450179A JP S5584019 A JPS5584019 A JP S5584019A
Authority
JP
Japan
Prior art keywords
thinnfilm
transducer
induction type
induction
type
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.)
Granted
Application number
JP14450179A
Other languages
English (en)
Other versions
JPH034964B2 (ja
Inventor
Edowaado Jiyoonzu Jiyu Robaato
Nisutoromu Uorusaa
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of JPS5584019A publication Critical patent/JPS5584019A/ja
Publication of JPH034964B2 publication Critical patent/JPH034964B2/ja
Granted 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/313—Disposition of 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
    • G11B5/31—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
JP14450179A 1978-12-21 1979-11-09 Induction type thinnfilm transducer Granted JPS5584019A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/972,104 US4190872A (en) 1978-12-21 1978-12-21 Thin film inductive transducer

Publications (2)

Publication Number Publication Date
JPS5584019A true JPS5584019A (en) 1980-06-24
JPH034964B2 JPH034964B2 (ja) 1991-01-24

Family

ID=25519165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14450179A Granted JPS5584019A (en) 1978-12-21 1979-11-09 Induction type thinnfilm transducer

Country Status (9)

Country Link
US (1) US4190872A (ja)
EP (1) EP0012912B1 (ja)
JP (1) JPS5584019A (ja)
AU (1) AU526069B2 (ja)
BR (1) BR7908411A (ja)
CA (1) CA1127298A (ja)
DE (1) DE2961724D1 (ja)
ES (1) ES487049A1 (ja)
ZA (1) ZA796366B (ja)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5971115A (ja) * 1982-10-15 1984-04-21 Hitachi Ltd 磁気ヘッド
DE3702212A1 (de) * 1986-01-27 1987-07-30 Hitachi Ltd Duennschicht-magnetkopf und herstellungsverfahren dafuer
JPH0689413A (ja) * 1992-06-19 1994-03-29 Hitachi Ltd 薄膜磁気ヘッド
JPH06103525A (ja) * 1992-06-19 1994-04-15 Hitachi Ltd 磁気記録再生装置
US5313356A (en) * 1990-12-12 1994-05-17 Fuji Electric Co., Ltd. Thin film magnetic head having a magnetic/non-magnetic laminate structure with the non-magnetic material being a metal or an insulating nitride
JPH0722235A (ja) * 1991-08-14 1995-01-24 Internatl Business Mach Corp <Ibm> 同一材料を使用する多層化強磁性体の薄膜及び磁気ヘッド
US5470491A (en) * 1992-07-03 1995-11-28 Mitsubishi Denki Kabushiki Kaisha Process for producing a thin-film magnetic head having an insulation formed of a ladder-type silicone resin
US5576098A (en) * 1992-07-08 1996-11-19 Fuji Electric Co., Ltd. Thin film magnetic head
US6771463B2 (en) 2000-05-10 2004-08-03 Tdk Corporation Thin-film coil and thin-film magnetic head having two patterned conductor layers that are coil-shaped and stacked
US7603764B2 (en) 2000-06-28 2009-10-20 Tdk Corporation Method of manufacturing a thin film magnetic head
JP2010092541A (ja) * 2008-10-08 2010-04-22 Showa Denko Kk 磁気記録媒体の製造方法および磁気記録再生装置
DE112016003485T5 (de) 2015-07-31 2018-04-19 Panasonic Intellectual Property Management Co., Ltd. Verfahren für ein Herstellen eines dreidimensional geformten Gegenstands und dreidimensional geformter Gegenstand

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2455330A1 (fr) * 1979-04-25 1980-11-21 Cii Honeywell Bull Dispositif magnetique de transduction a magnetoresistances
US4353102A (en) * 1979-07-04 1982-10-05 Matsushita Electric Industrial Co., Ltd. Thin-film magnetic head
US4295173A (en) * 1979-10-18 1981-10-13 International Business Machines Corporation Thin film inductive transducer
JPS5674811A (en) * 1979-11-20 1981-06-20 Matsushita Electric Ind Co Ltd Magnetic head
US4375657A (en) * 1980-11-03 1983-03-01 Brock George W Magnetic head assembly
JPS57117117A (en) * 1981-01-09 1982-07-21 Matsushita Electric Ind Co Ltd Thin film magnetic head
US4458279A (en) * 1981-03-23 1984-07-03 Magnex Corporation Thin film transducer and method of making same
JPS5819717A (ja) * 1981-07-30 1983-02-04 Fujitsu Ltd 垂直磁化記録再生用ヘッド
JPS5819716A (ja) * 1981-07-27 1983-02-04 Hitachi Ltd 薄膜磁気ヘツドおよびその製造方法
US4404609A (en) * 1981-10-30 1983-09-13 International Business Machines Corporation Thin film inductive transducer for perpendicular recording
JPS58105025U (ja) * 1982-01-07 1983-07-16 日本ビクター株式会社 マルチトラツク磁気ヘツド
US4458280A (en) * 1982-01-18 1984-07-03 International Business Machines Corporation Servo writing transducer design and writing method
US4490766A (en) * 1982-03-22 1984-12-25 International Business Machines Corporation Magnetic recording disk cleaning using controlled actuator motion
JPS5971112A (ja) * 1982-10-15 1984-04-21 Comput Basic Mach Technol Res Assoc 薄膜磁気ヘツド
US4581663A (en) * 1982-11-02 1986-04-08 Nec Corporation Buried servo recording system having dual transducers
US4593334A (en) * 1983-05-02 1986-06-03 International Business Machines Corporation Thin film transducer
US4589042A (en) * 1983-06-27 1986-05-13 International Business Machines Corporation Composite thin film transducer head
FR2559294B1 (fr) * 1984-02-03 1988-08-12 Commissariat Energie Atomique Nouvelle tete magnetique d'ecriture et de lecture pour enregistrement perpendiculaire et son procede de fabrication
EP0166890B1 (de) * 1984-05-04 1988-12-14 Siemens Aktiengesellschaft Dünnschicht-Magnetkopf mit einem Doppelspalt für ein senkrecht zur magnetisierendes Aufzeichnungsmedium
DE3501810A1 (de) * 1985-01-21 1986-07-24 Siemens AG, 1000 Berlin und 8000 München Duennschicht-magnetkopf mit einem doppelspalt fuer ein senkrecht zu magnetisierendes aufzeichnungsmedium
KR940004986B1 (ko) * 1984-08-27 1994-06-09 가부시기가이샤 히다찌세이사꾸쇼 자성막의 제조방법 및 그것을 사용한 자기헤드
US4923574A (en) * 1984-11-13 1990-05-08 Uri Cohen Method for making a record member with a metallic antifriction overcoat
ATE43450T1 (de) * 1984-12-21 1989-06-15 Siemens Ag Duennfilm-magnetkopf fuer ein senkrecht zu magnetisierendes aufzeichnungsmedium.
ATE36088T1 (de) * 1984-12-21 1988-08-15 Siemens Ag Duennfilm-magnetkopf auf einem nicht-magnetischen substrat zur senkrechten magnetisierung.
US4644432A (en) * 1985-01-28 1987-02-17 International Business Machines Three pole single element magnetic read/write head
US4764834A (en) * 1985-03-22 1988-08-16 Applied Magnetics Corporation Thin film magnetic transducer having a separate magnetically conductive layer
US4675986A (en) * 1985-07-29 1987-06-30 International Business Machines Electrical lapping guide for controlling the batch fabrication of thin film magnetic transducers
EP0218445A3 (en) * 1985-10-01 1989-08-30 Sony Corporation Thin film magnetic heads
US4740855A (en) * 1985-10-18 1988-04-26 Siemens Aktiengesellschaft Magnetic thin-film head having a main and an auxiliary pole for vertical magnetization
EP0232505A1 (de) * 1985-12-20 1987-08-19 Siemens Aktiengesellschaft Magnetische Speichereinrichtung mit einem senkrecht zu magnetisierenden Aufzeichnungsmedium
US4819111A (en) * 1986-08-29 1989-04-04 Magnetic Peripheral Inc. Thin film head with reduced cross section in the core for causing magnetic saturation in the leading leg's throat area
EP0320687A1 (de) * 1987-12-11 1989-06-21 Siemens Aktiengesellschaft Dünnfilm-Magnetkopf zur vertikalen Magnetisierung
US4839197A (en) * 1988-04-13 1989-06-13 Storage Technology Corporation Process for fabricating thin film magnetic recording heads having precision control of the width tolerance of the upper pole tip
EP0387364A1 (de) * 1989-03-13 1990-09-19 Siemens Aktiengesellschaft Dünnfilm-Magnetkopfeinheit
US5236735A (en) * 1989-05-27 1993-08-17 Tdk Corporation Method of producing a thin film magnetic head
US5023738A (en) * 1989-12-18 1991-06-11 Seagate Technology, Inc. Corrosion resistant magnetic recording read
NL9001147A (nl) * 1990-05-17 1991-12-16 Philips Nv Dunnefilm magneetkop.
EP0459426B1 (en) * 1990-05-31 1996-12-11 Sony Corporation Thin film magnetic head
US5220471A (en) * 1990-08-14 1993-06-15 Tdk Corporation Air bearing slider having a longitudinal groove in surface remote from recording medium
US5059278A (en) * 1990-09-28 1991-10-22 Seagate Technology Selective chemical removal of coil seed-layer in thin film head magnetic transducer
US5240740A (en) * 1990-11-26 1993-08-31 Digital Equipment Corporation Method of making a thin film head with minimized secondary pulses
DE69229906T2 (de) * 1991-12-18 1999-12-23 Hewlett Packard Co Induktiver Dünnfilmwandler mit verbesserter Schreibfähigkeit
US5305165A (en) * 1991-12-24 1994-04-19 International Business Machines Corporation Tribo-attractive contact data storage system
US5326429A (en) * 1992-07-21 1994-07-05 Seagate Technology, Inc. Process for making studless thin film magnetic head
US5820770A (en) * 1992-07-21 1998-10-13 Seagate Technology, Inc. Thin film magnetic head including vias formed in alumina layer and process for making the same
JP2721783B2 (ja) * 1992-08-19 1998-03-04 インターナショナル・ビジネス・マシーンズ・コーポレイション 薄膜磁気ヘッド変換器／懸架部の組合せシステム並びにその製造方法
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
US5945007A (en) * 1992-10-20 1999-08-31 Cohen; Uri Method for etching gap-vias in a magnetic thin film head and product
US5621595A (en) * 1992-10-20 1997-04-15 Cohen; Uri Pinched-gap magnetic recording thin film head
KR0129105B1 (ko) * 1993-01-08 1998-04-18 월리엄 티. 엘리스 종방향 기록을 위한 일체형 트랜스듀서-서스펜션 어셈블리의 제조 방법
JPH0773412A (ja) * 1993-06-24 1995-03-17 Sanyo Electric Co Ltd 薄膜磁気ヘッド
US5452166A (en) * 1993-10-01 1995-09-19 Applied Magnetics Corporation Thin film magnetic recording head for minimizing undershoots and a method for manufacturing the same
US5462636A (en) * 1993-12-28 1995-10-31 International Business Machines Corporation Method for chemically scribing wafers
US5452164A (en) * 1994-02-08 1995-09-19 International Business Machines Corporation Thin film magnetic write head
US5710745A (en) * 1995-04-07 1998-01-20 Discovision Associates Assembly having flux-directing return yoke for magneto-optical drive
US5703740A (en) * 1995-08-24 1997-12-30 Velocidata, Inc. Toroidal thin film head
US6151194A (en) * 1999-03-04 2000-11-21 Storage Technology Corporation Thin film inductive transducer with alumina gap positioned over coils
US6304414B1 (en) 1999-07-20 2001-10-16 Read-Rite Corporation Thin film magnetic write head having an ultra-low stack height
US7100266B2 (en) * 2001-05-16 2006-09-05 Seagate Technology Llc Method of forming a beveled writing pole of a perpendicular writing element
US6906893B2 (en) 2002-10-08 2005-06-14 Hitachi Global Storage Technologies Magnetic head coil and structure for protecting same during pole notch processing

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344237A (en) * 1967-09-26 Desposited film transducing apparatus and method op producing the apparatus
CH405426A (de) * 1961-12-21 1966-01-15 Ibm Magnetkopf zum Aufzeichnen und Ablesen von digitalen Signalen
US3700827A (en) * 1970-01-31 1972-10-24 Nippon Electric Co Magnetic head including thin magnetic film separated by a gap spacer
JPS5038325B1 (ja) * 1970-12-25 1975-12-09
FR2191186B1 (ja) * 1972-07-03 1976-01-16 Inf Ci Interna Fr
FR2297475A1 (fr) * 1975-01-10 1976-08-06 Cii Perfectionnements exportes aux structures de tetes magnetiques du type dit " integre "
US4078300A (en) * 1975-01-10 1978-03-14 Compagnie Internationale Pour L'informatique Method of making an integrated magnetic head having pole-pieces of a reduced frontal width

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ELECTRONICS=1977 *
IBM TECHNICAL DISCLOSURE BULLETIN=1965 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0520802B2 (ja) * 1982-10-15 1993-03-22 Hitachi Ltd
JPS5971115A (ja) * 1982-10-15 1984-04-21 Hitachi Ltd 磁気ヘッド
DE3702212A1 (de) * 1986-01-27 1987-07-30 Hitachi Ltd Duennschicht-magnetkopf und herstellungsverfahren dafuer
US5313356A (en) * 1990-12-12 1994-05-17 Fuji Electric Co., Ltd. Thin film magnetic head having a magnetic/non-magnetic laminate structure with the non-magnetic material being a metal or an insulating nitride
JPH0722235A (ja) * 1991-08-14 1995-01-24 Internatl Business Mach Corp <Ibm> 同一材料を使用する多層化強磁性体の薄膜及び磁気ヘッド
JPH0689413A (ja) * 1992-06-19 1994-03-29 Hitachi Ltd 薄膜磁気ヘッド
JPH06103525A (ja) * 1992-06-19 1994-04-15 Hitachi Ltd 磁気記録再生装置
US5470491A (en) * 1992-07-03 1995-11-28 Mitsubishi Denki Kabushiki Kaisha Process for producing a thin-film magnetic head having an insulation formed of a ladder-type silicone resin
US5576098A (en) * 1992-07-08 1996-11-19 Fuji Electric Co., Ltd. Thin film magnetic head
US6771463B2 (en) 2000-05-10 2004-08-03 Tdk Corporation Thin-film coil and thin-film magnetic head having two patterned conductor layers that are coil-shaped and stacked
US7603764B2 (en) 2000-06-28 2009-10-20 Tdk Corporation Method of manufacturing a thin film magnetic head
JP2010092541A (ja) * 2008-10-08 2010-04-22 Showa Denko Kk 磁気記録媒体の製造方法および磁気記録再生装置
DE112016003485T5 (de) 2015-07-31 2018-04-19 Panasonic Intellectual Property Management Co., Ltd. Verfahren für ein Herstellen eines dreidimensional geformten Gegenstands und dreidimensional geformter Gegenstand

Also Published As

Publication number Publication date
DE2961724D1 (en) 1982-02-18
AU5295179A (en) 1980-06-26
US4190872A (en) 1980-02-26
ES487049A1 (es) 1980-09-16
BR7908411A (pt) 1980-09-23
EP0012912B1 (en) 1981-12-30
ZA796366B (en) 1980-11-26
CA1127298A (en) 1982-07-06
EP0012912A1 (en) 1980-07-09
AU526069B2 (en) 1982-12-16
JPH034964B2 (ja) 1991-01-24

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