FR2550647B1 - MAGNETO-OPTICAL STORAGE MEDIUM - Google Patents
MAGNETO-OPTICAL STORAGE MEDIUMInfo
- Publication number
- FR2550647B1 FR2550647B1 FR8412529A FR8412529A FR2550647B1 FR 2550647 B1 FR2550647 B1 FR 2550647B1 FR 8412529 A FR8412529 A FR 8412529A FR 8412529 A FR8412529 A FR 8412529A FR 2550647 B1 FR2550647 B1 FR 2550647B1
- Authority
- FR
- France
- Prior art keywords
- magneto
- storage medium
- optical storage
- optical
- medium
- 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 - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- 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
- G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
- H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
- H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
- H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
- H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
- H01F10/14—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing iron or nickel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nanotechnology (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US52092383A | 1983-08-08 | 1983-08-08 | |
US06/520,922 US4556291A (en) | 1983-08-08 | 1983-08-08 | Magneto-optic storage media |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2550647A1 FR2550647A1 (en) | 1985-02-15 |
FR2550647B1 true FR2550647B1 (en) | 1990-10-12 |
Family
ID=27060311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8412529A Expired - Fee Related FR2550647B1 (en) | 1983-08-08 | 1984-08-08 | MAGNETO-OPTICAL STORAGE MEDIUM |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3429258A1 (en) |
FR (1) | FR2550647B1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0670858B2 (en) * | 1983-05-25 | 1994-09-07 | ソニー株式会社 | Magneto-optical recording medium and its manufacturing method |
JP2521908B2 (en) | 1985-06-11 | 1996-08-07 | 株式会社ニコン | Overwritable magneto-optical recording method, magneto-optical recording device and magneto-optical recording medium used therefor, modulation method, modulator and magneto-optical recording medium |
JPH07105082B2 (en) * | 1985-11-28 | 1995-11-13 | ソニー株式会社 | Magneto-optical recording medium |
DE3607367C2 (en) * | 1986-03-06 | 1995-06-22 | Teves Gmbh Alfred | Hydraulic brake system for motor vehicles |
JP2547770B2 (en) * | 1987-05-25 | 1996-10-23 | 株式会社東芝 | Method for manufacturing information recording medium |
US6251492B1 (en) * | 1998-04-10 | 2001-06-26 | Teijin Limited | Optical recording medium |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1547812A (en) * | 1966-11-14 | 1968-11-29 | Ampex | Magneto-optical modulation reading system |
FR1524309A (en) * | 1967-03-29 | 1968-05-10 | Centre Nat Rech Scient | Binary information memories with thin-film magnetic structures |
US4202022A (en) * | 1975-10-20 | 1980-05-06 | Kokusai Denshin Denwa Kabushiki Kaisha | Magnetic transfer record film and apparatus for magneto-optically reading magnetic record patterns using the same |
JPS57133537A (en) * | 1981-02-06 | 1982-08-18 | Sharp Corp | Magnetic and optical recording and reproducing head |
-
1984
- 1984-08-08 DE DE19843429258 patent/DE3429258A1/en not_active Ceased
- 1984-08-08 FR FR8412529A patent/FR2550647B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2550647A1 (en) | 1985-02-15 |
DE3429258A1 (en) | 1985-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
R1 | Appeal | ||
DS | Decision of the director general to state about an appeal |