CN1291403C - 多层信息记录介质 - Google Patents
多层信息记录介质 Download PDFInfo
- Publication number
- CN1291403C CN1291403C CNB2004101006088A CN200410100608A CN1291403C CN 1291403 C CN1291403 C CN 1291403C CN B2004101006088 A CNB2004101006088 A CN B2004101006088A CN 200410100608 A CN200410100608 A CN 200410100608A CN 1291403 C CN1291403 C CN 1291403C
- Authority
- CN
- China
- Prior art keywords
- layer
- information recording
- recording medium
- recording layer
- layered
- 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
- 239000010410 layer Substances 0.000 claims description 179
- 230000001681 protective effect Effects 0.000 claims description 24
- 238000000926 separation method Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 17
- 238000002310 reflectometry Methods 0.000 abstract description 3
- 230000001678 irradiating effect Effects 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 239000002355 dual-layer Substances 0.000 description 30
- 230000004075 alteration Effects 0.000 description 20
- 239000000463 material Substances 0.000 description 6
- 239000012782 phase change material Substances 0.000 description 4
- 239000010408 film Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
-
- 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
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00745—Sectoring or header formats within a track
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus pull-in only
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0945—Methods for initialising servos, start-up sequences
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
- G11B7/13925—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means
-
- 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
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24035—Recording layers
- G11B7/24038—Multiple laminated recording layers
-
- 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
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
-
- 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
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
-
- 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
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
- G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Optical Head (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Abstract
Description
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001156477A JP2002352469A (ja) | 2001-05-25 | 2001-05-25 | 多層情報記録媒体及び情報記録再生装置 |
JP156477/2001 | 2001-05-25 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB021204713A Division CN1266692C (zh) | 2001-05-25 | 2002-05-24 | 多层信息记录介质和信息记录和再现装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2006100957047A Division CN100568359C (zh) | 2001-05-25 | 2002-05-24 | 多层信息记录介质 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1619673A CN1619673A (zh) | 2005-05-25 |
CN1291403C true CN1291403C (zh) | 2006-12-20 |
Family
ID=19000481
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2006100957047A Expired - Lifetime CN100568359C (zh) | 2001-05-25 | 2002-05-24 | 多层信息记录介质 |
CNB2004101006092A Expired - Fee Related CN100373483C (zh) | 2001-05-25 | 2002-05-24 | 多层信息记录介质 |
CNB021204713A Expired - Lifetime CN1266692C (zh) | 2001-05-25 | 2002-05-24 | 多层信息记录介质和信息记录和再现装置 |
CNB2004101006088A Expired - Lifetime CN1291403C (zh) | 2001-05-25 | 2002-05-24 | 多层信息记录介质 |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2006100957047A Expired - Lifetime CN100568359C (zh) | 2001-05-25 | 2002-05-24 | 多层信息记录介质 |
CNB2004101006092A Expired - Fee Related CN100373483C (zh) | 2001-05-25 | 2002-05-24 | 多层信息记录介质 |
CNB021204713A Expired - Lifetime CN1266692C (zh) | 2001-05-25 | 2002-05-24 | 多层信息记录介质和信息记录和再现装置 |
Country Status (10)
Country | Link |
---|---|
US (4) | US6773781B2 (zh) |
EP (3) | EP1260972B1 (zh) |
JP (1) | JP2002352469A (zh) |
KR (4) | KR100687990B1 (zh) |
CN (4) | CN100568359C (zh) |
AT (2) | ATE403930T1 (zh) |
DE (3) | DE60228019D1 (zh) |
ES (1) | ES2311566T3 (zh) |
HK (3) | HK1074909A1 (zh) |
TW (1) | TWI223253B (zh) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100541626C (zh) * | 2002-06-05 | 2009-09-16 | Lg电子株式会社 | 高密度双层光盘 |
JP2004079071A (ja) * | 2002-08-16 | 2004-03-11 | Pioneer Electronic Corp | 光記録媒体及び光記録方法 |
AU2003257644A1 (en) * | 2002-08-21 | 2004-03-11 | Nec Corporation | Optical information recording/reproduction medium recording method, recording/reproduction method, and reproduction method, recording device, recording/reproduction device, reproduction device, and optical information recording/reproduction medium |
JP2004127390A (ja) * | 2002-09-30 | 2004-04-22 | Toshiba Corp | 多層光ディスク及び光ディスク記録再生装置 |
AU2003263461A1 (en) * | 2002-10-02 | 2004-04-23 | Koninklijke Philips Electronics N.V. | Optical record carrier for use with uv radiation beam |
CA2472075C (en) * | 2003-06-25 | 2013-02-26 | Matsushita Electric Industrial Co., Ltd. | Optical disk, method for manufacturing the same, and method for recording and method for reproducing data using optical disk |
JP3782426B2 (ja) * | 2003-08-07 | 2006-06-07 | 株式会社リコー | 光情報記録媒体及びその記録再生装置 |
JP2005149606A (ja) | 2003-11-14 | 2005-06-09 | Funai Electric Co Ltd | 光ピックアップ |
JP4476938B2 (ja) * | 2003-12-26 | 2010-06-09 | パナソニック株式会社 | 情報記録媒体 |
JP2007519151A (ja) * | 2004-01-20 | 2007-07-12 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 焦点のジャンプを伴う焦点制御方式 |
JP2005244502A (ja) * | 2004-02-25 | 2005-09-08 | Pioneer Electronic Corp | 光ディスク記録装置、光ディスク再生装置および多層型光ディスク |
JP4713839B2 (ja) * | 2004-03-17 | 2011-06-29 | 株式会社日立エルジーデータストレージ | 光ディスク装置及びそのフォーカスジャンプ制御方法 |
JP4515292B2 (ja) | 2004-05-25 | 2010-07-28 | 株式会社リコー | 情報記録装置および情報再生装置 |
EP1811382A4 (en) | 2004-09-17 | 2011-12-21 | Pioneer Corp | INFORMATION RECORDING MEDIUM, INFORMATION RECORDING DEVICE AND METHOD, INFORMATION REPRODUCING DEVICE AND METHOD AND COMPUTER PROGRAM |
CN100555439C (zh) | 2004-09-17 | 2009-10-28 | 日本先锋公司 | 信息记录装置和方法 |
ATE502382T1 (de) | 2004-10-12 | 2011-04-15 | Pioneer Corp | Informationsaufzeichnungsmedium, vorrichtung und verfahren zum aufzeichnen von informationen und computerprogramm |
JP2007128617A (ja) * | 2005-11-04 | 2007-05-24 | Tdk Corp | 書換型光記録媒体への情報記録方法、書換型光記録媒体及び書換型光記録媒体への情報記録装置 |
CN101840707B (zh) | 2007-10-19 | 2015-07-08 | 夏普株式会社 | 光信息记录介质重放装置及其控制方法 |
US8198083B1 (en) | 2007-10-31 | 2012-06-12 | William Gunter Loudon | Organotypic slices of the central nervous system |
WO2009119587A1 (ja) * | 2008-03-27 | 2009-10-01 | 日本電気株式会社 | 光ディスクドライブ装置 |
CN102037511B (zh) * | 2008-05-23 | 2012-08-22 | 松下电器产业株式会社 | 光学信息记录再生装置、光学信息记录再生方法、光学信息记录介质以及固体浸没透镜 |
CN102077284B (zh) | 2009-08-24 | 2014-11-05 | 松下电器产业株式会社 | 光记录介质的制造方法、光记录介质、光信息装置及信息再生方法 |
US8130628B2 (en) | 2009-08-25 | 2012-03-06 | Panasonic Corporation | Manufacturing method for optical recording medium, optical recording medium, optical information device, and information reproducing method |
CN108112072A (zh) * | 2016-11-24 | 2018-06-01 | 光宝电子(广州)有限公司 | 定位***及其定位方法 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0354740A (ja) | 1989-07-24 | 1991-03-08 | Matsushita Electric Ind Co Ltd | 光学情報記録部材および光学情報記録再生装置 |
US5303225A (en) * | 1989-10-30 | 1994-04-12 | Matsushita Electrical Industrial Co., Ltd. | Multi-layered optical disk with track and layer identification |
US5202875A (en) | 1991-06-04 | 1993-04-13 | International Business Machines Corporation | Multiple data surface optical data storage system |
US5838646A (en) * | 1991-09-11 | 1998-11-17 | Sony Corporation | Optical disk having a protective layer of specified thickness relative to the numerical aperture of the objective lens |
JP3558306B2 (ja) * | 1994-07-26 | 2004-08-25 | パイオニア株式会社 | 多層記録ディスク及びこれを用いた記録/再生システム |
JP3351164B2 (ja) * | 1995-03-24 | 2002-11-25 | 日本ビクター株式会社 | 光学的情報記録媒体の製造方法 |
JP3751073B2 (ja) * | 1995-06-08 | 2006-03-01 | 松下電器産業株式会社 | 光ディスク再生システム |
KR100199298B1 (ko) | 1995-06-08 | 1999-06-15 | 모리시따요오이 찌 | 한면 판독형 2층식 광디스크 및 재생헤드 |
JPH09138970A (ja) | 1995-11-09 | 1997-05-27 | Pioneer Electron Corp | 2層光ディスク |
KR19990011140A (ko) * | 1997-07-21 | 1999-02-18 | 윤종용 | 광디스크 |
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 |
US6175548B1 (en) * | 1998-06-29 | 2001-01-16 | Sony Corporation | Optical recording medium and optical recording and reproducing apparatus |
JP2000235732A (ja) * | 1999-02-12 | 2000-08-29 | Sony Corp | 多層光ディスク |
JP2001023244A (ja) * | 1999-07-09 | 2001-01-26 | Sony Corp | 光記録媒体およびその製造方法と、光記録装置 |
KR20010010565A (ko) * | 1999-07-21 | 2001-02-15 | 윤종용 | 2층 광디스크 |
JP2002050053A (ja) * | 2000-08-01 | 2002-02-15 | Tdk Corp | 光情報媒体 |
JP4150155B2 (ja) * | 2000-10-10 | 2008-09-17 | 株式会社日立製作所 | 情報記録媒体、情報の記録方法、再生方法、記録記録装置及び情報再生装置 |
JP2002170276A (ja) * | 2000-12-01 | 2002-06-14 | Pioneer Electronic Corp | 光学式多層情報記録媒体 |
TW588346B (en) * | 2000-12-22 | 2004-05-21 | Koninkl Philips Electronics Nv | Multilayer record carrier and method of manufacturing thereof and recording thereon |
TW583660B (en) * | 2001-01-25 | 2004-04-11 | Koninkl Philips Electronics Nv | Optical information medium and a method of manufacturing the medium |
JP3726254B2 (ja) * | 2001-09-17 | 2005-12-14 | 日本ビクター株式会社 | 情報記録媒体の製造方法 |
-
2001
- 2001-05-25 JP JP2001156477A patent/JP2002352469A/ja active Pending
-
2002
- 2002-05-20 US US10/147,979 patent/US6773781B2/en not_active Ceased
- 2002-05-21 AT AT02010300T patent/ATE403930T1/de not_active IP Right Cessation
- 2002-05-21 EP EP02010300A patent/EP1260972B1/en not_active Expired - Lifetime
- 2002-05-21 ES ES02010300T patent/ES2311566T3/es not_active Expired - Lifetime
- 2002-05-21 DE DE60228019T patent/DE60228019D1/de not_active Expired - Lifetime
- 2002-05-21 EP EP05001940A patent/EP1526525B1/en not_active Expired - Lifetime
- 2002-05-21 DE DE60239014T patent/DE60239014D1/de not_active Expired - Lifetime
- 2002-05-21 EP EP05001939A patent/EP1526524B1/en not_active Expired - Lifetime
- 2002-05-21 AT AT05001939T patent/ATE496371T1/de not_active IP Right Cessation
- 2002-05-21 DE DE60238875T patent/DE60238875D1/de not_active Expired - Lifetime
- 2002-05-22 TW TW091110806A patent/TWI223253B/zh not_active IP Right Cessation
- 2002-05-24 CN CNB2006100957047A patent/CN100568359C/zh not_active Expired - Lifetime
- 2002-05-24 CN CNB2004101006092A patent/CN100373483C/zh not_active Expired - Fee Related
- 2002-05-24 CN CNB021204713A patent/CN1266692C/zh not_active Expired - Lifetime
- 2002-05-24 CN CNB2004101006088A patent/CN1291403C/zh not_active Expired - Lifetime
- 2002-05-25 KR KR1020020029075A patent/KR100687990B1/ko active IP Right Grant
-
2003
- 2003-04-30 HK HK05107194.4A patent/HK1074909A1/xx not_active IP Right Cessation
- 2003-04-30 HK HK05107195.3A patent/HK1074910A1/xx not_active IP Right Cessation
- 2003-04-30 HK HK03103117.9A patent/HK1050954A1/xx not_active IP Right Cessation
-
2004
- 2004-12-21 KR KR1020040109355A patent/KR100699620B1/ko active IP Right Grant
- 2004-12-21 KR KR1020040109353A patent/KR100699619B1/ko active IP Right Grant
- 2004-12-21 KR KR1020040109354A patent/KR100702269B1/ko not_active IP Right Cessation
-
2005
- 2005-03-31 US US11/094,756 patent/USRE39322E1/en not_active Expired - Lifetime
- 2005-08-10 US US11/200,543 patent/USRE39463E1/en not_active Expired - Lifetime
- 2005-08-10 US US11/200,545 patent/USRE40556E1/en not_active Expired - Lifetime
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: NIPPON PIONEER CORP. Free format text: FORMER NAME: PIONEER ELECTRONIC CORP. |
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Address after: Tokyo, Japan Patentee after: Nippon Pioneer Co., Ltd. Address before: Tokyo, Japan Patentee before: Pioneer Corporation |
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Application publication date: 20050525 Assignee: China Hualu Group Ltd. Assignor: Blue light United Co., Ltd. Contract record no.: 2015990000016 Denomination of invention: Process for producing multilayered information recording medium, signal transfer substrate, and process for producing the signal transfer substrate Granted publication date: 20061220 License type: Common License Record date: 20150108 |
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Application publication date: 20050525 Assignee: Shanghai Epic Music Entertainment Co., Ltd. Assignor: Blue light United Co., Ltd. Contract record no.: 2016990000555 Denomination of invention: Process for producing multilayered information recording medium, signal transfer substrate, and process for producing the signal transfer substrate Granted publication date: 20061220 License type: Common License Record date: 20161228 |
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