DE3374475D1 - Magnetic head - Google Patents

Magnetic head

Info

Publication number
DE3374475D1
DE3374475D1 DE8383200121T DE3374475T DE3374475D1 DE 3374475 D1 DE3374475 D1 DE 3374475D1 DE 8383200121 T DE8383200121 T DE 8383200121T DE 3374475 T DE3374475 T DE 3374475T DE 3374475 D1 DE3374475 D1 DE 3374475D1
Authority
DE
Germany
Prior art keywords
core
magnetic flux
magnetizable material
path
magnetization
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
DE8383200121T
Other languages
English (en)
Inventor
Eelco Gerben Visser
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE3374475D1 publication Critical patent/DE3374475D1/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
    • 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
    • G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE8383200121T 1982-02-09 1983-01-26 Magnetic head Expired DE3374475D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8200481A NL8200481A (nl) 1982-02-09 1982-02-09 Magneetkop.

Publications (1)

Publication Number Publication Date
DE3374475D1 true DE3374475D1 (en) 1987-12-17

Family

ID=19839227

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383200121T Expired DE3374475D1 (en) 1982-02-09 1983-01-26 Magnetic head

Country Status (8)

Country Link
US (1) US4604670A (de)
EP (1) EP0086007B1 (de)
JP (1) JPS58146018A (de)
KR (1) KR880001196B1 (de)
AT (1) ATE30797T1 (de)
DE (1) DE3374475D1 (de)
HK (1) HK43289A (de)
NL (1) NL8200481A (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59142716A (ja) * 1983-02-04 1984-08-16 Hitachi Ltd 磁気ヘツドおよびその製造方法
JPS60138708A (ja) * 1983-12-27 1985-07-23 Ngk Insulators Ltd 磁気ヘッド用コアの製造法
JPS60224109A (ja) * 1984-04-20 1985-11-08 Hitachi Ltd 複合型磁気ヘツドを用いた磁気記録再生装置
NL8700160A (nl) * 1987-01-23 1988-08-16 Philips Nv Magneetkop voor gebruik bij loodrechte registratie.
US5159511A (en) * 1987-04-01 1992-10-27 Digital Equipment Corporation Biasing conductor for MR head
US4819091A (en) * 1987-04-30 1989-04-04 International Business Machines Corporation High speed magnetic disk contact recording system
EP0314172B1 (de) * 1987-10-29 1994-03-09 Fuji Photo Film Co., Ltd. Film-Magnetkopf
US5089334A (en) * 1988-08-03 1992-02-18 Digital Equipment Corporation Flux spreading thin film magnetic devices
US5085935A (en) * 1988-08-03 1992-02-04 Digital Equipment Corporation Flux spreading thin film magnetic devices
CA1334447C (en) * 1988-08-03 1995-02-14 Digital Equipment Corporation Perpendicular anisotropy in thin film devices
JP2619017B2 (ja) * 1988-10-11 1997-06-11 日立マクセル株式会社 複合磁気ヘッド
US6600631B1 (en) * 1989-11-27 2003-07-29 Censtor Corp. Transducer/flexure/conductor structure for electromagnetic read/write system
JP2941886B2 (ja) * 1990-04-24 1999-08-30 キヤノン電子株式会社 磁気ヘッド
DE4020353B4 (de) * 1990-06-27 2005-11-24 Grundig Multimedia B.V. Verfahren zur Verbesserung der elektromechanischen Eigenschaften von Magnetköpfen und kompletten Magnetkopfanordnungen

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA731581A (en) * 1966-04-05 H. Meiklejohn William Magnetic bodies
DE1042254B (de) * 1956-02-17 1958-10-30 Wolfgang Bogen Magnetkopf
US2964837A (en) * 1958-06-09 1960-12-20 Harris Transducer Corp Method of transducer manufacture
US3079470A (en) * 1959-12-21 1963-02-26 Armour Res Found Magnetic transducer head
US3232787A (en) * 1961-05-08 1966-02-01 Donald C Bennett Bistable magnetic film and method for making same
US3182300A (en) * 1962-09-10 1965-05-04 Bell & Howell Co Magnetic tape transducer
US3393982A (en) * 1962-11-08 1968-07-23 Ncr Co Ferromagnetic storage devices having uniaxial anisotropy
US3912483A (en) * 1968-09-25 1975-10-14 Matsushita Electric Ind Co Ltd Method of making a magnetic head
JPS498088B1 (de) * 1969-06-12 1974-02-23
US3665436A (en) * 1970-06-17 1972-05-23 Potter Instrument Co Inc Long-wearing magnetic head
US3824685A (en) * 1972-02-14 1974-07-23 Bell & Howell Co Method of making a ferrite head
NL175473C (nl) * 1972-06-20 1984-11-01 Matsushita Electric Ind Co Ltd Ferrietkern voor een magneetkop en werkwijze voor het vervaardigen van een ferrietkern.
US3986210A (en) * 1973-02-20 1976-10-12 Matsushita Electric Industrial Co., Ltd. Magnetic head device using printed circuit techniques
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
US4060798A (en) * 1976-05-12 1977-11-29 The United States Of America As Represented By The Secretary Of The Navy Method for increasing the critical velocity of magnetic bubble propagation in magnetic materials
JPS5496012A (en) * 1978-01-13 1979-07-30 Victor Co Of Japan Ltd Magnetic head
JPS54121108A (en) * 1978-03-13 1979-09-20 Akai Electric Mnnzn ferrite monocrystal magnetic head and method of fabricating same
US4242710A (en) * 1979-01-29 1980-12-30 International Business Machines Corporation Thin film head having negative magnetostriction
JPS55125519A (en) * 1979-03-23 1980-09-27 Hitachi Ltd Magnetic head
US4295173A (en) * 1979-10-18 1981-10-13 International Business Machines Corporation Thin film inductive transducer
JPS6035728B2 (ja) * 1980-02-21 1985-08-16 松下電器産業株式会社 薄膜磁気ヘッド
JPS56163518A (en) * 1980-05-16 1981-12-16 Hitachi Ltd Magnetic head
JPS5755522A (en) * 1980-09-22 1982-04-02 Hitachi Ltd Magnetic head

Also Published As

Publication number Publication date
KR880001196B1 (ko) 1988-07-02
JPS58146018A (ja) 1983-08-31
NL8200481A (nl) 1983-09-01
EP0086007A1 (de) 1983-08-17
KR840003877A (ko) 1984-10-04
ATE30797T1 (de) 1987-11-15
EP0086007B1 (de) 1987-11-11
US4604670A (en) 1986-08-05
HK43289A (en) 1989-06-07

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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: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

8339 Ceased/non-payment of the annual fee