ES2072291T3 - Metodo de registro termomagnetico de informacion y de lectura de informacion almacenada, y tambien un elemento de registro adecuado para uso en este metodo. - Google Patents

Metodo de registro termomagnetico de informacion y de lectura de informacion almacenada, y tambien un elemento de registro adecuado para uso en este metodo.

Info

Publication number
ES2072291T3
ES2072291T3 ES89203214T ES89203214T ES2072291T3 ES 2072291 T3 ES2072291 T3 ES 2072291T3 ES 89203214 T ES89203214 T ES 89203214T ES 89203214 T ES89203214 T ES 89203214T ES 2072291 T3 ES2072291 T3 ES 2072291T3
Authority
ES
Spain
Prior art keywords
recording
information
thermomagnetic
reading
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 - Lifetime
Application number
ES89203214T
Other languages
English (en)
Inventor
Franciscus Johannes Greidanus
Peter Francis Carcia
Wouter Bastiaan Zeper
Broeder Friedrich Johannes Den
Willem Frederik Godlieb
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
EIDP Inc
Original Assignee
Philips Electronics NV
EI Du Pont de Nemours and Co
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 Electronics NV, EI Du Pont de Nemours and Co filed Critical Philips Electronics NV
Application granted granted Critical
Publication of ES2072291T3 publication Critical patent/ES2072291T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
    • G11B13/04—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form

Abstract

SE DESCRIBE UN METODO PARA LA GRABACION TERMOMAGNETICA DE INFORMACION Y LECTURA OPTICA DE ESTA INFORMACION, TAMBIEN SE DESCRIBE UN ELEMENTO DE GRABACION PARA UTILIZARSE CON ESTE METODO. EL ELEMENTO DE GRABACION INCLUYE UNA CAPA DE GRABACION EN LA FORMA DE UNA DELGADA MULTICAPA (7) QUE SE ARMA A PARTIR DE UNA PLURALIDAD DE CAPAS MAGNETICAS CO-CONTENEDORAS (7A) Y UNA PLURALIDAD DE CAPAS NO-MAGNETICAS (7B) QUE SE COMPONEN DE MATERIALES DE TRANSICION. LAS CAPAS MAGNETICAS Y NO-MAGNETICAS SE APLICAN ALTERNADAMENTE. EL GROSOR TOTAL DE LA CAPA DE GRABACION ES MENOR QUE 75 NM. SE HA DESCUBIERTO QUE ELEMENTOS DE GRABACION DE TAL ESTRUCTURA TIENEN BUENAS PROPIEDADES DE GRABACION TERMOMAGNETICA Y BUENAS PROPIEDADES DE LECTURA MAGNETO OPTICA.
ES89203214T 1988-12-24 1989-12-18 Metodo de registro termomagnetico de informacion y de lectura de informacion almacenada, y tambien un elemento de registro adecuado para uso en este metodo. Expired - Lifetime ES2072291T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8803168A NL8803168A (nl) 1988-12-24 1988-12-24 Werkwijze voor het thermomagnetisch registreren van informatie en het optisch uitlezen van de geregistreerde informatie alsmede een registratie-element dat geschikt is voor toepassing in deze werkwijze.

Publications (1)

Publication Number Publication Date
ES2072291T3 true ES2072291T3 (es) 1995-07-16

Family

ID=19853439

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89203214T Expired - Lifetime ES2072291T3 (es) 1988-12-24 1989-12-18 Metodo de registro termomagnetico de informacion y de lectura de informacion almacenada, y tambien un elemento de registro adecuado para uso en este metodo.

Country Status (11)

Country Link
US (1) US5109375A (es)
EP (1) EP0376375B1 (es)
JP (1) JPH02263344A (es)
KR (1) KR0168626B1 (es)
AT (1) ATE120025T1 (es)
DE (1) DE68921726T2 (es)
ES (1) ES2072291T3 (es)
HU (1) HUT55156A (es)
NL (1) NL8803168A (es)
RU (1) RU2040047C1 (es)
YU (1) YU244689A (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5082749A (en) * 1990-03-15 1992-01-21 E. I. Du Pont De Nemours And Company Platinum or palladium/cobalt multilayer on a zinc oxide or indium oxide layer for magneto-optical recording
US5346740A (en) * 1990-09-25 1994-09-13 Matsushita Electric Industrial Co., Ltd. Optical information recording medium
JP2903729B2 (ja) * 1990-12-20 1999-06-14 ソニー株式会社 光磁気記録媒体
JPH056820A (ja) * 1990-12-28 1993-01-14 Sony Corp 光磁気記録媒体
EP0498657A3 (en) * 1991-02-08 1993-03-03 Canon Kabushiki Kaisha Optical recording medium, method of reproducing recorded data of optical recording medium, and system for reproducing recorded data of optical recording medium
US5305300A (en) * 1991-02-13 1994-04-19 Sharp Kabushiki Kaisha Magneto optical storage device using a multi-layer film of Pt/Co laminated sections
JPH0573990A (ja) * 1991-03-07 1993-03-26 Hitachi Ltd 光記録方法、光記録再生方法、光記録材料及び光記録装置
CA2069056C (en) * 1991-05-23 1996-03-05 Kenji Ohta Magneto-optical storage device and manufacturing method thereof
JP3029485B2 (ja) * 1991-07-22 2000-04-04 キヤノン株式会社 光磁気記録媒体
JPH05198029A (ja) * 1991-09-03 1993-08-06 Philips Gloeilampenfab:Nv 光磁気記録媒体
GB9216074D0 (en) * 1992-07-28 1992-09-09 Johnson Matthey Plc Magneto-optical recording materials system
EP0762412A1 (en) * 1995-08-25 1997-03-12 Eastman Kodak Company Optical storage medium including multiple data levels made of Co/Pt magneto-optical recording media
US6243350B1 (en) * 1996-05-01 2001-06-05 Terastor Corporation Optical storage systems with flying optical heads for near-field recording and reading
EP1239307A1 (en) * 2001-03-09 2002-09-11 Sicpa Holding S.A. Magnetic thin film interference device
AT413777B (de) * 2001-03-21 2006-05-15 Clearjet Gmbh Vorrichtung zur bearbeitung blattförmiger informationsträger
US20020192506A1 (en) 2001-06-04 2002-12-19 International Business Machines Corporation `Thermal Spring' magnetic recording media for writing using magnetic and thermal gradients

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61117747A (ja) * 1984-11-12 1986-06-05 Nippon Kogaku Kk <Nikon> ２層膜光磁気記録媒体
US4587176A (en) * 1985-01-14 1986-05-06 E. I. Du Pont De Nemours And Company Layered coherent structures for magnetic recording
US4731300A (en) * 1985-03-07 1988-03-15 Victor Company Of Japan, Ltd. Perpendicular magnetic recording medium and manufacturing method thereof
US4635076A (en) * 1985-03-14 1987-01-06 Minnesota Mining And Manufacturing Company Two-sided optical recording medium
US4678721A (en) * 1986-04-07 1987-07-07 U.S. Philips Corporation Magnetic recording medium
US4789606A (en) * 1986-04-17 1988-12-06 Fuji Photo Film Co., Ltd. Magneto-optical recording medium
JPH0782674B2 (ja) * 1986-11-06 1995-09-06 キヤノン株式会社 光磁気メモリ用媒体
DE3727093A1 (de) * 1987-08-14 1989-02-23 Basf Ag Flaechenfoermiges, mehrschichtiges, laseroptisches aufzeichnungsmaterial
DE3866314D1 (de) * 1987-08-26 1992-01-02 Sony Corp Magnetooptischer aufzeichnungstraeger.
JPH01149246A (ja) * 1987-12-04 1989-06-12 Sony Corp 光磁気記録媒体
EP0367685A3 (en) * 1988-10-31 1991-08-07 Eastman Kodak Company Magnetooptical recording element

Also Published As

Publication number Publication date
NL8803168A (nl) 1990-07-16
EP0376375B1 (en) 1995-03-15
KR0168626B1 (ko) 1999-03-20
KR900010695A (ko) 1990-07-09
HU896701D0 (en) 1990-02-28
YU244689A (en) 1990-12-31
RU2040047C1 (ru) 1995-07-20
US5109375A (en) 1992-04-28
EP0376375A1 (en) 1990-07-04
JPH02263344A (ja) 1990-10-26
DE68921726D1 (de) 1995-04-20
ATE120025T1 (de) 1995-04-15
DE68921726T2 (de) 1995-09-14
HUT55156A (en) 1991-04-29

Similar Documents

Publication Publication Date Title
ES2072291T3 (es) Metodo de registro termomagnetico de informacion y de lectura de informacion almacenada, y tambien un elemento de registro adecuado para uso en este metodo.
JP2874893B2 (ja) 磁気ヘッド装置
US5051970A (en) Magneto-optic recording system with overwrite capability
EP1426944A3 (en) Method for manufacturing a magneto-optical recording medium
EP0910092A3 (en) Magnetic thin film memory element and recording/reproduction method using such memory element
CA2100898A1 (en) Magneto-optical recording medium and method of recording and reproducingusing thereof
KR860005336A (ko) 강자성의 금속박막 자기 기록 매체 및 그 제조방법
SG49286A1 (en) Magneto-optical recording medium
DE3884371T2 (de) Dünnfilm-schreib-/lese-solenoidkopf für computer-massenspeichervorrichtung und herstellungsverfahren desselben.
DE68925824D1 (de) Datenaufzeichnungssystem für bildausschnittsweisen filminformationsaustausch mit zugeordneten magnetspuren am film
DE69215047D1 (de) Dünnfilmlaminierter aufnahme/wiedergabe magnetkopf für hohe schreibdichten und datentransferraten
DE69207519T2 (de) Laminierter Polyesterfilm für magnetisches Aufzeichnungsmedium
KR910005237A (ko) 자기 기록매체
US4748073A (en) Perpendicular magnetic recording medium with multilayered protective layer
EP0809238A3 (en) Magnetic recording media and magnetic recording system using the same
JPS57113415A (en) Vertical magnetic recording medium
SU801065A1 (ru) Носитель магнитной записи циф-РОВОй иНфОРМАции
EP0384746A3 (en) Over write capable magnetooptical recording medium
MY105701A (en) Interactive optical disk.
SU591929A1 (ru) Носитель магнитной записи
JPS6452239A (en) Magneto-optical memory medium
Pugh Alternatives to magnetic recording
JPS6484486A (en) Magnetic recording/reproducing device and magnetic head
JPS6251022A (ja) 磁気記録媒体
Stephani Microfabrication of magnetic thin-film heads

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 376375

Country of ref document: ES