DE69426366D1 - Magnetooptischer Aufzeichnungsträger und diesen benutzendes Verfahren zur Aufzeichnung und/oder Wiedergabe - Google Patents
Magnetooptischer Aufzeichnungsträger und diesen benutzendes Verfahren zur Aufzeichnung und/oder WiedergabeInfo
- Publication number
- DE69426366D1 DE69426366D1 DE69426366T DE69426366T DE69426366D1 DE 69426366 D1 DE69426366 D1 DE 69426366D1 DE 69426366 T DE69426366 T DE 69426366T DE 69426366 T DE69426366 T DE 69426366T DE 69426366 D1 DE69426366 D1 DE 69426366D1
- Authority
- DE
- Germany
- Prior art keywords
- magneto
- reproduction
- same
- recording medium
- recording
- 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
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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/852—Orientation in a 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
- G11B11/10502—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
- G11B11/10515—Reproducing
-
- 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
- G11B11/10517—Overwriting or erasing
- G11B11/10519—Direct overwriting, i.e. performing erasing and recording using the same transducing means
- G11B11/10521—Direct overwriting, i.e. performing erasing and recording using the same transducing means using a single light spot
-
- 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
- G11B11/10589—Details
- G11B11/10591—Details for improving write-in properties, e.g. Curie-point temperature
-
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12736—Al-base component
-
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
-
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12868—Group IB metal-base component alternative to platinum group metal-base component [e.g., precious metal, etc.]
-
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12896—Ag-base component
-
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12903—Cu-base component
-
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12903—Cu-base component
- Y10T428/1291—Next to Co-, Cu-, or Ni-base component
-
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12903—Cu-base component
- Y10T428/12917—Next to Fe-base component
-
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12903—Cu-base component
- Y10T428/12917—Next to Fe-base component
- Y10T428/12924—Fe-base has 0.01-1.7% carbon [i.e., steel]
-
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12931—Co-, Fe-, or Ni-base components, alternative to each other
-
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12937—Co- or Ni-base component next to Fe-base component
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5001375A JP2957367B2 (ja) | 1993-01-07 | 1993-01-07 | 光磁気記録媒体およびその記録方法と記録再生方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69426366D1 true DE69426366D1 (de) | 2001-01-11 |
DE69426366T2 DE69426366T2 (de) | 2001-05-03 |
Family
ID=11499745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69426366T Expired - Lifetime DE69426366T2 (de) | 1993-01-07 | 1994-01-05 | Magnetooptischer Aufzeichnungsträger und diesen benutzendes Verfahren zur Aufzeichnung und/oder Wiedergabe |
Country Status (5)
Country | Link |
---|---|
US (2) | US5648162A (de) |
EP (1) | EP0606155B1 (de) |
JP (1) | JP2957367B2 (de) |
KR (1) | KR0159317B1 (de) |
DE (1) | DE69426366T2 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0470546B1 (de) * | 1990-08-07 | 1998-11-04 | Hitachi Maxell Ltd. | Magnetooptischer Aufzeichnungsträger |
WO1994003892A1 (en) * | 1992-07-29 | 1994-02-17 | Seiko Epson Corporation | Magneto-optic recording medium and method of its manufacture method |
JPH08106660A (ja) * | 1994-10-05 | 1996-04-23 | Canon Inc | 光磁気記録媒体及び該媒体を用いた情報再生方法 |
JPH0927151A (ja) * | 1995-07-07 | 1997-01-28 | Sharp Corp | 光磁気記録媒体およびその再生方法 |
JP3126639B2 (ja) * | 1995-09-12 | 2001-01-22 | シャープ株式会社 | 光磁気記録媒体及びその再生方法 |
US6436524B1 (en) * | 1996-01-19 | 2002-08-20 | Seiko Epson Corporation | Magneto-optical recording medium |
JPH09231631A (ja) * | 1996-02-21 | 1997-09-05 | Sharp Corp | 光磁気記録媒体 |
JPH09293286A (ja) * | 1996-02-22 | 1997-11-11 | Sanyo Electric Co Ltd | 光磁気記録媒体及び情報記録再生装置 |
JPH1021599A (ja) * | 1996-06-28 | 1998-01-23 | Matsushita Electric Ind Co Ltd | 超解像記録媒体を用いた磁界変調の記録再生方法 |
JP3660072B2 (ja) * | 1996-09-26 | 2005-06-15 | シャープ株式会社 | 光磁気記録媒体及びその記録方法並びに光磁気記録装置 |
US6217968B1 (en) * | 1997-04-21 | 2001-04-17 | Hitachi Maxell, Ltd. | Optical recording medium, optical head and optical recording device |
JP2989575B2 (ja) | 1997-12-12 | 1999-12-13 | 三洋電機株式会社 | 光磁気記録媒体 |
US6319583B1 (en) * | 1998-03-19 | 2001-11-20 | Seagate Technology Llc | Lubricated and overcoated magneto-optical media with improved tribological performance |
US6335080B1 (en) | 1999-01-04 | 2002-01-01 | Seagate Technology Llc | Magnetic disk media and disk drives utilizing polymeric disk substrates |
US6519211B1 (en) * | 1999-04-01 | 2003-02-11 | Matsushita Electric Industrial Co., Ltd. | Magneto-optical recording medium having magnetic domain shrinks and disappears |
JP2001126332A (ja) * | 1999-10-21 | 2001-05-11 | Canon Inc | 光磁気記録媒体の製造方法 |
JP2001126327A (ja) * | 1999-10-22 | 2001-05-11 | Sony Corp | 光磁気記録媒体 |
JP2001126328A (ja) * | 1999-10-29 | 2001-05-11 | Sony Corp | 光磁気記録媒体 |
JP2002245693A (ja) * | 2001-02-15 | 2002-08-30 | Fujitsu Ltd | 光磁気記録媒体及びその製造方法 |
KR100613161B1 (ko) * | 2002-02-25 | 2006-08-17 | 후지쯔 가부시끼가이샤 | 광자기 기록 매체 및 그 기록 재생 장치 |
CN109402606B (zh) * | 2018-12-11 | 2021-04-02 | 中国科学院半导体研究所 | 半导体激光器及不同折射率腔面膜的制备方法 |
Family Cites Families (12)
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 |
JP2521908B2 (ja) * | 1985-06-11 | 1996-08-07 | 株式会社ニコン | オ―バ―ライト可能な光磁気記録方法、それに使用される光磁気記録装置及び光磁気記録媒体、並びに変調方法、変調装置及び光磁気記録媒体 |
ATE216528T1 (de) * | 1986-07-08 | 2002-05-15 | Canon Kk | Gerät und system zur aufzeichnung auf einem magnetooptischen aufzeichnungsmedium |
DE3889203T2 (de) * | 1987-11-30 | 1994-11-03 | Sony Corp | Methode zum optischen Abtasten eines Signals aus einem magneto-optischen Speichermedium. |
JPH01149246A (ja) * | 1987-12-04 | 1989-06-12 | Sony Corp | 光磁気記録媒体 |
US5168482A (en) * | 1989-08-31 | 1992-12-01 | Sony Corporation | Magnetooptical recording and playback method employing multi-layer recording medium with record holding layer and playback layer |
JPH03130945A (ja) * | 1989-09-18 | 1991-06-04 | Hitachi Ltd | 磁気記録媒体及びこれを用いた記録再生方式 |
CA2060547C (en) * | 1991-02-08 | 2002-04-23 | Masumi Ohta | System and method of reproducing signals recorded on a magneto-optic recording medium |
JP2812817B2 (ja) * | 1991-07-08 | 1998-10-22 | シャープ株式会社 | 光磁気記録媒体 |
EP0523944A3 (en) * | 1991-07-16 | 1994-02-16 | Canon Kk | Magneto optical recording medium and method |
JP2938284B2 (ja) * | 1992-10-06 | 1999-08-23 | シャープ株式会社 | 光磁気記録媒体及びこれを用いた記録再生方法 |
JP2999895B2 (ja) * | 1992-12-10 | 2000-01-17 | シャープ株式会社 | 光磁気記録媒体 |
-
1993
- 1993-01-07 JP JP5001375A patent/JP2957367B2/ja not_active Expired - Fee Related
- 1993-12-30 US US08/177,096 patent/US5648162A/en not_active Expired - Lifetime
-
1994
- 1994-01-05 DE DE69426366T patent/DE69426366T2/de not_active Expired - Lifetime
- 1994-01-05 EP EP94300043A patent/EP0606155B1/de not_active Expired - Lifetime
- 1994-01-06 KR KR1019940000152A patent/KR0159317B1/ko not_active IP Right Cessation
-
1996
- 1996-11-06 US US08/744,565 patent/US5691963A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0606155A2 (de) | 1994-07-13 |
JPH06203417A (ja) | 1994-07-22 |
US5691963A (en) | 1997-11-25 |
DE69426366T2 (de) | 2001-05-03 |
EP0606155B1 (de) | 2000-12-06 |
KR0159317B1 (ko) | 1999-01-15 |
EP0606155A3 (de) | 1996-09-11 |
JP2957367B2 (ja) | 1999-10-04 |
KR940018813A (ko) | 1994-08-19 |
US5648162A (en) | 1997-07-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69426366T2 (de) | Magnetooptischer Aufzeichnungsträger und diesen benutzendes Verfahren zur Aufzeichnung und/oder Wiedergabe | |
DE69421219T2 (de) | Aufzeichnungsmedium, Aufzeichnungs- und/oder Wiedergabegerät und Aufzeichnungs- und/oder Wiedergabeverfahren | |
DE69416702T2 (de) | Magnetooptischer Aufzeichnungsträger und Verfahren zur Informationswiedergabe | |
KR960702929A (ko) | 멀티 신 기록매체 및 재생장치 및 그 방법 | |
DE69423793T2 (de) | Vorrichtung zur magnetooptischen Aufzeichnung und Wiedergabe | |
DE69327290D1 (de) | Magnetooptischer Aufzeichnungsträger sowie ihn verwendende Aufzeichnungs- und Wiedergabemethode | |
DE69522427T2 (de) | Magnetooptisches Aufzeichnungsmedium und Verfahren zur Wiedergabe | |
DE69030865D1 (de) | Aufzeichnungsmedium und Verfahren zur Wiedergabe dafür | |
EP0686970A3 (de) | Magneto-optisches Aufzeichnungsmedium und Wiedergabemethode dafür | |
DE69427678D1 (de) | Magnetooptisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung | |
DE69421950T2 (de) | Plattenaufzeichnungs- und/oder -wiedergabegerät | |
DE69327711D1 (de) | Magnetooptisches aufzeichnungsmedium und verfahren zu seiner herstellung | |
DE69424613T2 (de) | Aufzeichnungs- und Wiedergabevorrichtung für magnetooptisches Medium | |
DE69631743D1 (de) | Magnetooptisches Aufzeichnungsmedium und Verfahren zur Wiedergabe davon | |
DE3852329T2 (de) | Magneto-optisches Aufzeichnungsmedium und Verfahren. | |
DE69224502D1 (de) | Magnetooptisches Aufzeichnungsmedium und magnetooptisches Aufzeichnungs-/Wiedergabeverfahren | |
DE69426794D1 (de) | Informationswiedergabeverfahren und Informationsaufzeichnungs-/Wiedergabeverfahren | |
DE69123496T2 (de) | Verfahren zur datenaufzeichnung und wiedergabe | |
DE69425810T2 (de) | Optisches Aufzeichnungsverfahren und optisches Wiedergabeverfahren | |
DE69430099D1 (de) | Magnetooptisches Aufzeichnungsmedium und Verfahren zum Auslesen desselben | |
DE69324644D1 (de) | Verfahren und Anordnung zur Aufzeichnung magnetooptischer Information | |
KR960011963A (ko) | 기록 매체에 대한 기록 및/또는 재생 방법 및 장치 | |
DE69122197T2 (de) | Magnetooptisches Aufzeichnungsmedium, und Verfahren zur magnetooptischen Aufzeichnung und Wiedergabe | |
DE69430043T2 (de) | Magnetooptisches Aufzeichnungsmedium und Verfahren zur Wiedergabe dessen magneto-optischer Information | |
HK1003210A1 (en) | Magnetic recording medium and method for producingthe same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |