DE3438472A1 - Duennfilmmagnetkopf - Google Patents

Duennfilmmagnetkopf

Info

Publication number
DE3438472A1
DE3438472A1 DE19843438472 DE3438472A DE3438472A1 DE 3438472 A1 DE3438472 A1 DE 3438472A1 DE 19843438472 DE19843438472 DE 19843438472 DE 3438472 A DE3438472 A DE 3438472A DE 3438472 A1 DE3438472 A1 DE 3438472A1
Authority
DE
Germany
Prior art keywords
magnetic
thin film
high permeability
recording medium
transverse
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
DE19843438472
Other languages
German (de)
English (en)
Other versions
DE3438472C2 (en, 2012
Inventor
Hiroaki Yokohama Muraoka
Seishi Nishinomiya Sasaki
Ken Suita Takahashi
Hiroshi Hirakata Youda
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE3438472A1 publication Critical patent/DE3438472A1/de
Application granted granted Critical
Publication of DE3438472C2 publication Critical patent/DE3438472C2/de
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
    • G11B5/33—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE19843438472 1983-10-20 1984-10-19 Duennfilmmagnetkopf Granted DE3438472A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58195241A JPS6087417A (ja) 1983-10-20 1983-10-20 薄膜磁気ヘツド

Publications (2)

Publication Number Publication Date
DE3438472A1 true DE3438472A1 (de) 1985-05-15
DE3438472C2 DE3438472C2 (en, 2012) 1988-01-07

Family

ID=16337834

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843438472 Granted DE3438472A1 (de) 1983-10-20 1984-10-19 Duennfilmmagnetkopf

Country Status (3)

Country Link
US (1) US4700252A (en, 2012)
JP (1) JPS6087417A (en, 2012)
DE (1) DE3438472A1 (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0777213A1 (en) * 1995-11-29 1997-06-04 Eastman Kodak Company Flux-guided paired magnetoresistive head

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5159511A (en) * 1987-04-01 1992-10-27 Digital Equipment Corporation Biasing conductor for MR head
US5111352A (en) * 1987-07-29 1992-05-05 Digital Equipment Corporation Three-pole magnetic head with reduced flux leakage
US5075956A (en) * 1988-03-16 1991-12-31 Digital Equipment Corporation Method of making recording heads with side shields
US5269895A (en) * 1991-05-21 1993-12-14 North American Philips Corporation Method of making composite structure with single domain magnetic element
US5815342A (en) * 1992-07-13 1998-09-29 Kabushiki Kaisha Toshiba Perpendicular magnetic recording/reproducing apparatus
US5508868A (en) * 1993-01-25 1996-04-16 Read-Rite Corporation Dual element magnetoresistive sensing head having in-gap flux guide and flux closure piece with particular connection of magnetoresistive sensing elements to differential amplifier
TW349690U (en) * 1994-12-16 1999-01-01 Ibm Magnetoresistive head with a magnetoresistive film shaped to provide an improved read sensitivity profile
KR100201681B1 (ko) * 1996-01-03 1999-06-15 포만 제프리 엘 직교 자기저항 센서와 자기 저장 시스템 및 직교 자기저항 센서 제조 방법
US6765756B1 (en) 1999-03-12 2004-07-20 Western Digital (Fremont), Inc. Ultra-short yoke and ultra-low stack height writer and method of fabrication
US8023227B2 (en) * 2007-02-23 2011-09-20 Samsung Electronics Co., Ltd. Perpendicular recording head with a grooved yoke
KR101127766B1 (ko) * 2011-01-24 2012-03-16 주식회사 하이닉스반도체 자기저항소자 제조 방법

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091812A1 (en) * 1982-04-14 1983-10-19 Matsushita Electric Industrial Co., Ltd. A playback head for perpendicular magnetic recordings

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300177A (en) * 1975-07-17 1981-11-10 U.S. Philips Corporation Thin-film magnetic head for reading and writing information
NL7901578A (nl) * 1979-02-28 1980-09-01 Philips Nv Magnetoweerstandkop.
CA1137627A (en) * 1978-04-25 1982-12-14 Wilhelmus J. Van Gestel Magnetoresistive head
FR2502375B1 (fr) * 1981-03-20 1989-08-18 Cii Honeywell Bull Transducteur magnetoresistant de lecture d'informations a tres haute densite
JPS57172525A (en) * 1981-04-15 1982-10-23 Canon Inc Magnetic head for reproduction
NL8102148A (nl) * 1981-05-01 1982-12-01 Philips Nv Magnetisch overdrachtselement alsmede magnetisch permeabel onderdeel voor een magnetisch overdrachtselement.
JPS58102324A (ja) * 1981-12-15 1983-06-17 Seiko Epson Corp 磁気ヘツド
JPS58179927A (ja) * 1982-04-14 1983-10-21 Matsushita Electric Ind Co Ltd 薄膜磁気ヘツド

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091812A1 (en) * 1982-04-14 1983-10-19 Matsushita Electric Industrial Co., Ltd. A playback head for perpendicular magnetic recordings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0777213A1 (en) * 1995-11-29 1997-06-04 Eastman Kodak Company Flux-guided paired magnetoresistive head

Also Published As

Publication number Publication date
JPS6087417A (ja) 1985-05-17
DE3438472C2 (en, 2012) 1988-01-07
JPH0459685B2 (en, 2012) 1992-09-24
US4700252A (en) 1987-10-13

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee