WO1997026652A1 - Support d'enregistrement magneto-optique - Google Patents
Support d'enregistrement magneto-optique Download PDFInfo
- Publication number
- WO1997026652A1 WO1997026652A1 PCT/JP1996/002148 JP9602148W WO9726652A1 WO 1997026652 A1 WO1997026652 A1 WO 1997026652A1 JP 9602148 W JP9602148 W JP 9602148W WO 9726652 A1 WO9726652 A1 WO 9726652A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- recording layer
- rare earth
- recording
- heavy rare
- recording medium
- Prior art date
Links
Classifications
-
- 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
-
- 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
-
- 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
- G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements
-
- 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
- G11B11/10502—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 characterised by the transducing operation to be executed
- G11B11/10504—Recording
- G11B11/10508—Recording by modulating only the magnetic field at the transducer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
Landscapes
- Thin Magnetic Films (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96925137A EP0817182A4 (en) | 1996-01-19 | 1996-07-30 | MAGNETO-OPTICAL RECORDING MEDIUM |
US08/913,974 US6436524B1 (en) | 1996-01-19 | 1996-07-30 | Magneto-optical recording medium |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8/7215 | 1996-01-19 | ||
JP721596 | 1996-01-19 | ||
JP7764396 | 1996-03-29 | ||
JP8/77643 | 1996-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997026652A1 true WO1997026652A1 (fr) | 1997-07-24 |
Family
ID=26341482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1996/002148 WO1997026652A1 (fr) | 1996-01-19 | 1996-07-30 | Support d'enregistrement magneto-optique |
Country Status (4)
Country | Link |
---|---|
US (1) | US6436524B1 (ja) |
EP (1) | EP0817182A4 (ja) |
KR (1) | KR19980703114A (ja) |
WO (1) | WO1997026652A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002358616A (ja) * | 2000-06-12 | 2002-12-13 | Toshiba Corp | 磁気記録媒体および磁気記録装置 |
JP2002170292A (ja) * | 2000-12-01 | 2002-06-14 | Fujitsu Ltd | 光磁気記録媒体及びその再生方法 |
JP2002269812A (ja) * | 2001-03-14 | 2002-09-20 | Sony Corp | 光学記録媒体およびその製造方法 |
US20040057343A1 (en) * | 2002-09-18 | 2004-03-25 | Matsushita Electric Industrial Co., Ltd. | Magnetic recording medium, method for producing the same and magnetic recording/reproducing apparatus |
JP2005050400A (ja) * | 2003-07-30 | 2005-02-24 | Canon Inc | 光磁気記録媒体 |
JP2005332474A (ja) * | 2004-05-19 | 2005-12-02 | Hitachi Global Storage Technologies Netherlands Bv | 熱アシスト磁気記録装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61296551A (ja) * | 1985-06-21 | 1986-12-27 | Kyocera Corp | 光磁気記録素子の製造方法 |
JPH0467334A (ja) * | 1990-06-30 | 1992-03-03 | Kyocera Corp | 光磁気記録素子 |
JPH04370550A (ja) * | 1991-06-20 | 1992-12-22 | Hitachi Maxell Ltd | 光磁気記録媒体 |
WO1994003892A1 (en) * | 1992-07-29 | 1994-02-17 | Seiko Epson Corporation | Magneto-optic recording medium and method of its manufacture method |
JPH07244877A (ja) * | 1994-01-17 | 1995-09-19 | Fujitsu Ltd | 光磁気記録媒体及び該媒体に記録された情報の再生方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0470546B1 (en) * | 1990-08-07 | 1998-11-04 | Hitachi Maxell Ltd. | Magneto-optical recording medium |
JP2957367B2 (ja) * | 1993-01-07 | 1999-10-04 | シャープ株式会社 | 光磁気記録媒体およびその記録方法と記録再生方法 |
-
1996
- 1996-07-30 WO PCT/JP1996/002148 patent/WO1997026652A1/ja not_active Application Discontinuation
- 1996-07-30 US US08/913,974 patent/US6436524B1/en not_active Expired - Fee Related
- 1996-07-30 EP EP96925137A patent/EP0817182A4/en not_active Withdrawn
- 1996-07-30 KR KR1019970706516A patent/KR19980703114A/ko not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61296551A (ja) * | 1985-06-21 | 1986-12-27 | Kyocera Corp | 光磁気記録素子の製造方法 |
JPH0467334A (ja) * | 1990-06-30 | 1992-03-03 | Kyocera Corp | 光磁気記録素子 |
JPH04370550A (ja) * | 1991-06-20 | 1992-12-22 | Hitachi Maxell Ltd | 光磁気記録媒体 |
WO1994003892A1 (en) * | 1992-07-29 | 1994-02-17 | Seiko Epson Corporation | Magneto-optic recording medium and method of its manufacture method |
JPH07244877A (ja) * | 1994-01-17 | 1995-09-19 | Fujitsu Ltd | 光磁気記録媒体及び該媒体に記録された情報の再生方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0817182A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP0817182A4 (en) | 2002-10-30 |
US6436524B1 (en) | 2002-08-20 |
EP0817182A1 (en) | 1998-01-07 |
KR19980703114A (ko) | 1998-10-15 |
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