GB2026225B - Magnetic data carrier for perpendicular recording - Google Patents

Magnetic data carrier for perpendicular recording

Info

Publication number
GB2026225B
GB2026225B GB7915128A GB7915128A GB2026225B GB 2026225 B GB2026225 B GB 2026225B GB 7915128 A GB7915128 A GB 7915128A GB 7915128 A GB7915128 A GB 7915128A GB 2026225 B GB2026225 B GB 2026225B
Authority
GB
United Kingdom
Prior art keywords
data carrier
magnetic data
perpendicular recording
recording
magnetic
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
GB7915128A
Other languages
English (en)
Other versions
GB2026225A (en
Original Assignee
Cii
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 Cii filed Critical Cii
Publication of GB2026225A publication Critical patent/GB2026225A/en
Application granted granted Critical
Publication of GB2026225B publication Critical patent/GB2026225B/en
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
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • 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
    • 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • G11B5/676—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)
GB7915128A 1978-06-13 1979-05-01 Magnetic data carrier for perpendicular recording Expired GB2026225B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7817641A FR2428886A1 (fr) 1978-06-13 1978-06-13 Support d'information magnetique a enregistrement perpendiculaire

Publications (2)

Publication Number Publication Date
GB2026225A GB2026225A (en) 1980-01-30
GB2026225B true GB2026225B (en) 1982-06-30

Family

ID=9209435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7915128A Expired GB2026225B (en) 1978-06-13 1979-05-01 Magnetic data carrier for perpendicular recording

Country Status (8)

Country Link
US (1) US4287544A (US08118993-20120221-C00002.png)
JP (1) JPS558690A (US08118993-20120221-C00002.png)
DE (1) DE2924013A1 (US08118993-20120221-C00002.png)
FR (1) FR2428886A1 (US08118993-20120221-C00002.png)
GB (1) GB2026225B (US08118993-20120221-C00002.png)
IT (1) IT1121284B (US08118993-20120221-C00002.png)
NL (1) NL7903213A (US08118993-20120221-C00002.png)
SE (1) SE440004B (US08118993-20120221-C00002.png)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4954748A (US08118993-20120221-C00002.png) * 1972-09-27 1974-05-28
DE2928096A1 (de) * 1979-07-12 1981-02-05 Basf Ag Magnetischer aufzeichnungstraeger
DE3035148A1 (de) * 1980-09-18 1982-04-22 Ibm Deutschland Gmbh, 7000 Stuttgart Magnetischer aufzeichnungstraeger fuer vertikales aufzeichnen
DE3212907C2 (de) * 1981-04-06 1985-10-24 Olympus Optical Co., Ltd., Tokio/Tokyo Magnetband sowie Verfahren zu dessen Herstellung
JPS57183624A (en) * 1981-05-07 1982-11-12 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57183630A (en) * 1981-05-07 1982-11-12 Fuji Photo Film Co Ltd Magnetic recording medium
JPS5862823A (ja) * 1981-10-08 1983-04-14 Nec Corp 垂直磁気記憶体
JPS5914101A (ja) * 1982-07-14 1984-01-25 Hitachi Ltd 磁気記録再生方式
JPS5916130A (ja) * 1982-07-19 1984-01-27 Hitachi Ltd 垂直磁気記録媒体
US4541026A (en) * 1982-07-20 1985-09-10 Vertimag Systems Corporation Hybrid read-write head for perpendicular recording media
JPS5971115A (ja) * 1982-10-15 1984-04-21 Hitachi Ltd 磁気ヘッド
FR2535097B1 (fr) * 1982-10-22 1989-04-07 Cii Honeywell Bull Dispositif d'ecriture d'informations sur un support magnetique
JPS59193529A (ja) * 1983-04-18 1984-11-02 Teijin Ltd 磁気記録媒体及びその製造法
JPS59193528A (ja) * 1983-04-18 1984-11-02 Teijin Ltd 磁気記録媒体の製造法
FR2549271B1 (fr) * 1983-07-13 1989-05-26 Cii Honeywell Bull Transducteur magnetique hautement integre d'ecriture d'informations sur un support magnetique
DE3330023A1 (de) * 1983-08-19 1985-02-28 Siemens AG, 1000 Berlin und 8000 München Kombinierter schreib- und lese-magnetkopf fuer ein senkrecht zu magnetisierendes aufzeichnungsmedium
DE3330041A1 (de) * 1983-08-19 1985-02-28 Siemens AG, 1000 Berlin und 8000 München Magnetkopf fuer ein senkrecht zu magnetisierendes aufzeichnungsmedium
DE3330075A1 (de) * 1983-08-19 1985-02-28 Siemens AG, 1000 Berlin und 8000 München Schreib-/lese-magnetkopf fuer ein senkrecht zu magnetisierendes aufzeichnungsmedium
DE3330021A1 (de) * 1983-08-19 1985-02-28 Siemens AG, 1000 Berlin und 8000 München Verfahren zur speicherung von informationen nach dem prinzip der senkrechten magnetisierung sowie magnetkopf zur durchfuehrung des verfahrens
DE3343933A1 (de) * 1983-12-05 1985-06-13 Siemens AG, 1000 Berlin und 8000 München Magnetkopf mit haupt- und hilfspol fuer ein senkrecht zu magnetisierendes aufzeichnungsmedium
DE3346886A1 (de) * 1983-12-23 1985-07-11 Siemens AG, 1000 Berlin und 8000 München Kombinierter schreib- und lese-magnetkopf fuer ein longitudinal oder senkrecht zu magnetisierendes aufzeichnungsmedium
DE3346885A1 (de) * 1983-12-23 1985-07-11 Siemens AG, 1000 Berlin und 8000 München Duennschicht-magnetkopf fuer ein senkrecht zu magnetisierendes aufzeichnungsmedium
DE3346876A1 (de) * 1983-12-23 1985-07-11 Siemens AG, 1000 Berlin und 8000 München Kombinierter schreib- und lese-magnetkopf zur senkrechten magnetisierung eines entsprechenden aufzeichnungsmediums
DE3346777A1 (de) * 1983-12-23 1985-07-04 Siemens AG, 1000 Berlin und 8000 München Duennschicht-magnetkopf zur senkrechten (vertikalen) aufzeichnung
DE3566848D1 (en) * 1984-05-04 1989-01-19 Siemens Ag Thin-layer double-gap magnetic head for a perpendicularly magnetized recording medium
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
DE3418822A1 (de) * 1984-05-21 1985-11-21 Siemens AG, 1000 Berlin und 8000 München Schreib-/lese-magnetkopf mit einem schichtweisen aufbau fuer ein senkrecht zu magnetisierendes aufzeichnungsmedium
DE3419650A1 (de) * 1984-05-25 1985-11-28 Siemens AG, 1000 Berlin und 8000 München Duennschicht-magnetkopf zum schreiben und lesen fuer ein senkrecht zu magnetisierendes aufzeichnungs-medium
DE3420746A1 (de) * 1984-06-04 1985-12-05 Siemens AG, 1000 Berlin und 8000 München Schichtweise aufgebauter magnetkopf fuer ein senkrecht zu magnetisierendes aufzeichnungsmedium
EP0186032B1 (de) * 1984-12-21 1989-05-24 Siemens Aktiengesellschaft Dünnfilm-Magnetkopf für ein senkrecht zu magnetisierendes Aufzeichnungsmedium
DE3664540D1 (en) * 1985-03-29 1989-08-24 Siemens Ag Perpendicular magnetic-recording medium and process for its production
EP0232505A1 (de) * 1985-12-20 1987-08-19 Siemens Aktiengesellschaft Magnetische Speichereinrichtung mit einem senkrecht zu magnetisierenden Aufzeichnungsmedium
DE3641222A1 (de) * 1986-12-03 1988-06-16 Siemens Ag Magnetkopf mit haupt- und hilfspol sowie verfahren zu dessen herstellung
US4843507A (en) * 1986-12-03 1989-06-27 Siemens Aktiengesellschaft Magnetic head with laminated structure
DE3641196A1 (de) * 1986-12-03 1988-06-09 Siemens Ag Magnetkopf mit haupt- und hilfspol und verfahren zu dessen herstellung
US5176965A (en) * 1987-10-05 1993-01-05 Digital Equipment Corporation Magnetic medium for longitudinal recording
US5237548A (en) * 1988-06-01 1993-08-17 Hoechst Aktiengesellschaft Magneto-optic recording structure and method
JP2933316B2 (ja) * 1989-01-27 1999-08-09 株式会社東芝 Ｘ線検出器
US6498697B1 (en) * 1999-07-12 2002-12-24 Alexandr M. Klimovitsky Method and system of magnetic recording and reproducing with ultra-high density
US6649921B1 (en) * 2002-08-19 2003-11-18 Fusion Uv Systems, Inc. Apparatus and method providing substantially two-dimensionally uniform irradiation
US20080084634A1 (en) * 2006-09-22 2008-04-10 Board Of Regents Of The Nevada System Of Higher Education On Behalf Of The University Nevada Devices and methods for storing data
US7950587B2 (en) * 2006-09-22 2011-05-31 The Board of Regents of the Nevada System of Higher Education on behalf of the University of Reno, Nevada Devices and methods for storing data

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185775A (en) * 1958-03-10 1965-05-25 Iit Res Inst Oriented tape
US3052567A (en) * 1959-09-23 1962-09-04 Minnesota Mining & Mfg Magnetic recording medium
FR1270371A (fr) * 1960-10-14 1961-08-25 Philips Nv Procédé de fabrication d'objets destinés à l'enregistrement et à la reproduction d'inscriptions magnétiques et objets ainsi fabriqués
US3878367A (en) * 1973-05-02 1975-04-15 Minnesota Mining & Mfg Magnetic security document and method for making same
GB1529937A (en) * 1974-10-16 1978-10-25 Emi Ltd Magnetic recording
JPS5843815B2 (ja) * 1975-10-23 1983-09-29 富士写真フイルム株式会社 ジキキロクテ−プ

Also Published As

Publication number Publication date
DE2924013C2 (US08118993-20120221-C00002.png) 1990-09-13
IT1121284B (it) 1986-04-02
IT7923520A0 (it) 1979-06-13
GB2026225A (en) 1980-01-30
US4287544A (en) 1981-09-01
JPS558690A (en) 1980-01-22
SE7904666L (sv) 1979-12-14
FR2428886A1 (fr) 1980-01-11
NL7903213A (nl) 1979-12-17
FR2428886B1 (US08118993-20120221-C00002.png) 1980-10-10
DE2924013A1 (de) 1980-01-10
SE440004B (sv) 1985-07-08

Similar Documents

Publication Publication Date Title
GB2026225B (en) Magnetic data carrier for perpendicular recording
DE3165303D1 (en) Magnetic record carrier
JPS54157603A (en) Magnetic recording medium
SG53083G (en) Magnetic tape recording system
GB2026946B (en) Sucurity magnetic recording supports
GB2015376B (en) Magnetic recording medium
GB2019255B (en) Magnetic recording medium
GB2039281B (en) Magnetic recording medium
GB2041382B (en) Magnetic recording medium
GB2015930B (en) Magnetic information carrier
GB2040100B (en) Magnetic recorder reproducer
GB2038843B (en) Magnetic recording medium
JPS54161221A (en) Magnetic recorder*reproducer
GB2037782B (en) Magnetic recording medium
GB2030345B (en) Recording tape carrier
GB2036757B (en) Magnetic recording medium
JPS54116206A (en) Magnetic recorder*reproducer
JPS54143117A (en) Magnetic recording medium
GB2019633B (en) Magnetic recording
GB2016433A (en) Magnetic recording medium
GB2020471B (en) Magnetic recording/reproducing apparatus
JPS54145106A (en) Magnetic recording medium
JPS54139508A (en) Magnetic recording medium
JPS54164107A (en) Base for magnetic recording tape
JPS551682A (en) Magnetic recording system

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950501