DE69811958T2 - Wiederbeschreibbare optische datenspeicherplatte mit verbessenter planheit - Google Patents
Wiederbeschreibbare optische datenspeicherplatte mit verbessenter planheitInfo
- Publication number
- DE69811958T2 DE69811958T2 DE69811958T DE69811958T DE69811958T2 DE 69811958 T2 DE69811958 T2 DE 69811958T2 DE 69811958 T DE69811958 T DE 69811958T DE 69811958 T DE69811958 T DE 69811958T DE 69811958 T2 DE69811958 T2 DE 69811958T2
- Authority
- DE
- Germany
- Prior art keywords
- substrate
- disk
- diskette
- thickness
- 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 - Fee Related
Links
- 230000003287 optical effect Effects 0.000 title claims description 23
- 238000013500 data storage Methods 0.000 title claims description 12
- 239000000758 substrate Substances 0.000 claims description 156
- 239000000463 material Substances 0.000 claims description 26
- 239000004417 polycarbonate Substances 0.000 claims description 23
- 229920000515 polycarbonate Polymers 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 18
- 238000010168 coupling process Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000005855 radiation Effects 0.000 claims description 5
- 238000007654 immersion Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 239000012815 thermoplastic material Substances 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 79
- 238000001816 cooling Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000005259 measurement Methods 0.000 description 6
- 229910010271 silicon carbide Inorganic materials 0.000 description 6
- 229910052581 Si3N4 Inorganic materials 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 230000005415 magnetization Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- -1 rare earth transition metal Chemical class 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000599 Cr alloy Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- QQHSIRTYSFLSRM-UHFFFAOYSA-N alumanylidynechromium Chemical compound [Al].[Cr] QQHSIRTYSFLSRM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000788 chromium alloy Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920003247 engineering thermoplastic Polymers 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008542 thermal sensitivity Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or 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
- G11B11/10502—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
- G11B11/10528—Shaping of magnetic domains, e.g. form, dimensions
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/913—Material designed to be responsive to temperature, light, moisture
-
- 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
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/146—Laser beam
-
- 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
- Y10T428/21—Circular sheet or circular blank
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/003,580 US5972461A (en) | 1998-01-06 | 1998-01-06 | Rewritable optical data storage disk having enhanced flatness |
| PCT/US1998/007217 WO1999035642A1 (en) | 1998-01-06 | 1998-04-10 | Rewritable optical data storage disk having enhanced flatness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69811958D1 DE69811958D1 (de) | 2003-04-10 |
| DE69811958T2 true DE69811958T2 (de) | 2003-12-18 |
Family
ID=21706553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69811958T Expired - Fee Related DE69811958T2 (de) | 1998-01-06 | 1998-04-10 | Wiederbeschreibbare optische datenspeicherplatte mit verbessenter planheit |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US5972461A (https=) |
| EP (1) | EP1046162B1 (https=) |
| JP (1) | JP2002501273A (https=) |
| CN (1) | CN1145157C (https=) |
| DE (1) | DE69811958T2 (https=) |
| WO (1) | WO1999035642A1 (https=) |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6104802A (en) | 1997-02-10 | 2000-08-15 | Genesys Telecommunications Laboratories, Inc. | In-band signaling for routing |
| US6127017A (en) * | 1997-04-30 | 2000-10-03 | Hitachi Maxell, Ltd. | Substrate for information recording disk, mold and stamper for injection molding substrate, and method for making stamper, and information recording disk |
| JPH11149664A (ja) * | 1997-11-19 | 1999-06-02 | Sharp Corp | 光ディスク |
| US6238763B1 (en) * | 1998-01-06 | 2001-05-29 | Imation Corp. | Rewritable optical data storage disk having enhanced flatness |
| US6324129B1 (en) * | 1998-01-08 | 2001-11-27 | Seagate Technology Llc | Near field magneto-optical head having read and write pinhole apertures |
| JPH11296904A (ja) | 1998-04-03 | 1999-10-29 | Toshiba Corp | 情報記録媒体およびこれに用いられる樹脂基板の製造方法 |
| US6214430B1 (en) * | 1998-04-10 | 2001-04-10 | Lg Electronics Inc. | Disc recording medium and method of fabricating the same |
| US6381200B1 (en) * | 1998-11-18 | 2002-04-30 | Seagate Technology Llc | Flash layer overcoat for first surface magneto-optical media |
| US6545974B1 (en) * | 1998-11-18 | 2003-04-08 | Seagate Technology Llc | Disc media and methods for fabricating |
| US6335080B1 (en) | 1999-01-04 | 2002-01-01 | Seagate Technology Llc | Magnetic disk media and disk drives utilizing polymeric disk substrates |
| US7179551B2 (en) | 1999-02-12 | 2007-02-20 | General Electric Company | Poly(arylene ether) data storage media |
| WO2000048172A2 (en) | 1999-02-12 | 2000-08-17 | General Electric Company | Data storage media |
| US6816820B1 (en) * | 1999-09-24 | 2004-11-09 | Moldflow Ireland, Ltd. | Method and apparatus for modeling injection of a fluid in a mold cavity |
| US6269072B1 (en) * | 1999-10-22 | 2001-07-31 | Victor Company Of Japan, Ltd. | Optical disc |
| US6678238B1 (en) * | 1999-12-29 | 2004-01-13 | Imation Corp. | Mold for manufacturing double-sided disk shaped articles for storing data |
| US6441123B1 (en) * | 2000-05-31 | 2002-08-27 | General Electric Company | Vibration damping monolithic polymers |
| JP2002117584A (ja) * | 2000-10-06 | 2002-04-19 | Sony Corp | 光学記録媒体およびその製造方法 |
| US6501589B1 (en) * | 2001-02-22 | 2002-12-31 | Aralight | Article comprising a metallic anti-mirror |
| US7300690B2 (en) * | 2001-03-29 | 2007-11-27 | General Electric Company | Radial tilt reduced media |
| US20020145826A1 (en) * | 2001-04-09 | 2002-10-10 | University Of Alabama | Method for the preparation of nanometer scale particle arrays and the particle arrays prepared thereby |
| US20030060552A1 (en) * | 2001-05-08 | 2003-03-27 | Balfour Kim G. | Corona resistant thermoplastic blends and methods for manufacture thereof |
| TWI238389B (en) * | 2001-11-21 | 2005-08-21 | Ind Tech Res Inst | High density micro-optical pickup head |
| AU2004211184A1 (en) * | 2003-02-05 | 2004-08-26 | Moldflow Ireland Ltd. | Apparatus and methods for performing process simulation using a hybrid model |
| EP1603730A2 (en) * | 2003-03-03 | 2005-12-14 | Moldflow Ireland Ltd | Apparatus and methods for predicting properties of processed material |
| JP4340459B2 (ja) * | 2003-03-14 | 2009-10-07 | 株式会社 日立ディスプレイズ | 表示装置の製造方法 |
| US20040268379A1 (en) * | 2003-06-30 | 2004-12-30 | Imation Corp. | Storage media volumetric factor |
| JP2007283520A (ja) * | 2006-04-13 | 2007-11-01 | Mitsubishi Kagaku Media Co Ltd | 感熱印刷層、及びこの感熱印刷層を用いた光記録媒体 |
| US7910234B2 (en) * | 2006-04-28 | 2011-03-22 | Imation Corp. | Magnetic recording medium having improved durability for high density applications |
| JP5053229B2 (ja) * | 2007-11-21 | 2012-10-17 | パナソニック株式会社 | ギャップ制御装置及び光情報装置 |
| US8877359B2 (en) * | 2008-12-05 | 2014-11-04 | Wd Media (Singapore) Pte. Ltd. | Magnetic disk and method for manufacturing same |
| JP7029319B2 (ja) * | 2018-03-13 | 2022-03-03 | マクセル株式会社 | 熱アシスト記録用塗布型磁気記録媒体及びそれを用いた熱アシスト磁気記録装置と熱アシスト磁気記録方法 |
| US20210090601A1 (en) * | 2019-09-25 | 2021-03-25 | Western Digital Technologies, Inc. | Magnetic recording apparatus comprising disk with reduced thickness and reduced disk flatness |
| US12555601B2 (en) | 2021-10-01 | 2026-02-17 | Western Digital Technologies, Inc. | Magnetic recording disk with high internal stress to reduce disk deflections from shock forces and methods for use with the disk |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56169238A (en) * | 1980-05-28 | 1981-12-25 | Sharp Corp | Magnetooptical storage disk |
| US4741967A (en) * | 1983-06-08 | 1988-05-03 | Canon Kabushiki Kaisha | Magnetic recording medium |
| JPS60218732A (ja) * | 1984-04-13 | 1985-11-01 | Toshiba Corp | 避雷器の切離し装置 |
| US4664964A (en) * | 1984-04-23 | 1987-05-12 | Fuji Photo Film Co., Ltd. | Magnetic recording medium |
| JPS6169238A (ja) | 1984-09-12 | 1986-04-09 | Fujitsu Ltd | 呼番号付与方式 |
| JPH06101115B2 (ja) | 1985-09-30 | 1994-12-12 | 京セラ株式会社 | ジルコニア製磁気デイスク基板及びその製法 |
| US5158834A (en) * | 1988-02-01 | 1992-10-27 | Minnesota Mining And Manufacturing Company | Magneto optic recording medium with silicon carbide dielectric |
| JPH02254648A (ja) * | 1989-03-28 | 1990-10-15 | Seiko Epson Corp | 光磁気ディスク |
| US5032470A (en) * | 1989-04-17 | 1991-07-16 | Mitsui Petrochemical Industries, Ltd. | Optical recording medium with an aluminum alloy metallic layer containing at least hafnium |
| PL285286A1 (en) * | 1989-05-23 | 1991-01-28 | Mitsui Petrochemical Ind | Informating recording medium |
| JP2549079B2 (ja) * | 1989-08-31 | 1996-10-30 | ダイセル化学工業株式会社 | 複合光磁気記録媒体 |
| US5125750A (en) * | 1991-03-14 | 1992-06-30 | The Board Of Trustees Of The Leland Stanford Junior University | Optical recording system employing a solid immersion lens |
| DE4223850A1 (de) * | 1991-07-23 | 1993-01-28 | Mitsubishi Chem Ind | Magnetooptisches aufzeichnungsmedium |
| DE69225771T2 (de) * | 1991-11-07 | 1998-10-01 | Toray Industries | Optisches Aufzeichnungsmedium |
| JPH05225609A (ja) * | 1992-02-06 | 1993-09-03 | Tdk Corp | 光ディスク用基板および光ディスク |
| US5470627A (en) * | 1992-03-06 | 1995-11-28 | Quantum Corporation | Double-sided optical media for a disk storage device |
| US5576087A (en) * | 1992-09-18 | 1996-11-19 | Canon Kabushiki Kaisha | Magneto-optical recording medium |
| CA2127059A1 (en) * | 1993-07-02 | 1995-01-03 | Masahiko Sekiya | Magneto-optical recording medium |
| JPH07182709A (ja) * | 1993-11-15 | 1995-07-21 | Minnesota Mining & Mfg Co <3M> | 光磁気記録媒体 |
| US5510163A (en) | 1994-05-18 | 1996-04-23 | National Research Council Of Canada | Optical storage media having visible logos |
| JPH08115541A (ja) * | 1994-08-24 | 1996-05-07 | Hitachi Maxell Ltd | 光磁気記録媒体 |
| US5593790A (en) * | 1994-12-29 | 1997-01-14 | Imation Corp. | Interference super-resolution using two magnetic layer construction |
| JPH09180276A (ja) * | 1995-12-25 | 1997-07-11 | Sharp Corp | 光磁気記録媒体およびその再生方法 |
-
1998
- 1998-01-06 US US09/003,580 patent/US5972461A/en not_active Expired - Fee Related
- 1998-04-10 JP JP2000527939A patent/JP2002501273A/ja active Pending
- 1998-04-10 EP EP98915466A patent/EP1046162B1/en not_active Expired - Lifetime
- 1998-04-10 WO PCT/US1998/007217 patent/WO1999035642A1/en not_active Ceased
- 1998-04-10 CN CNB988129620A patent/CN1145157C/zh not_active Expired - Fee Related
- 1998-04-10 DE DE69811958T patent/DE69811958T2/de not_active Expired - Fee Related
-
1999
- 1999-07-25 US US09/360,749 patent/US6180201B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002501273A (ja) | 2002-01-15 |
| EP1046162A1 (en) | 2000-10-25 |
| US5972461A (en) | 1999-10-26 |
| US6180201B1 (en) | 2001-01-30 |
| CN1285949A (zh) | 2001-02-28 |
| WO1999035642A1 (en) | 1999-07-15 |
| EP1046162B1 (en) | 2003-03-05 |
| CN1145157C (zh) | 2004-04-07 |
| DE69811958D1 (de) | 2003-04-10 |
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