JP3988236B2 - 光ディスク - Google Patents

光ディスク Download PDF

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Publication number
JP3988236B2
JP3988236B2 JP04875798A JP4875798A JP3988236B2 JP 3988236 B2 JP3988236 B2 JP 3988236B2 JP 04875798 A JP04875798 A JP 04875798A JP 4875798 A JP4875798 A JP 4875798A JP 3988236 B2 JP3988236 B2 JP 3988236B2
Authority
JP
Japan
Prior art keywords
layer
recording
disk
disc
density
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
Application number
JP04875798A
Other languages
English (en)
Japanese (ja)
Other versions
JPH11232701A5 (enExample
JPH11232701A (ja
Inventor
和彦 本多
保 本間
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Corp
Original Assignee
Yamaha Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yamaha Corp filed Critical Yamaha Corp
Priority to JP04875798A priority Critical patent/JP3988236B2/ja
Publication of JPH11232701A publication Critical patent/JPH11232701A/ja
Publication of JPH11232701A5 publication Critical patent/JPH11232701A5/ja
Application granted granted Critical
Publication of JP3988236B2 publication Critical patent/JP3988236B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G11B7/24—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

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
JP04875798A 1998-02-13 1998-02-13 光ディスク Expired - Fee Related JP3988236B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP04875798A JP3988236B2 (ja) 1998-02-13 1998-02-13 光ディスク

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04875798A JP3988236B2 (ja) 1998-02-13 1998-02-13 光ディスク

Publications (3)

Publication Number Publication Date
JPH11232701A JPH11232701A (ja) 1999-08-27
JPH11232701A5 JPH11232701A5 (enExample) 2005-07-14
JP3988236B2 true JP3988236B2 (ja) 2007-10-10

Family

ID=12812162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP04875798A Expired - Fee Related JP3988236B2 (ja) 1998-02-13 1998-02-13 光ディスク

Country Status (1)

Country Link
JP (1) JP3988236B2 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW527590B (en) * 2000-04-25 2003-04-11 Matsushita Electric Industrial Co Ltd Compact disk, and the manufacturing method of the same, and the manufacturing device of compact disk
EP1296319B1 (en) * 2000-04-25 2007-02-14 Matsushita Electric Industrial Co., Ltd. Method of manufacturing disk substrate, and method and device for manufacturing optical disk
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
KR100378086B1 (ko) 2001-05-14 2003-03-29 엘지전자 주식회사 클랭핑 영역의 상하면이 서로다른 높이를 갖는 고밀도 광디스크
GB2380595B (en) * 2001-10-02 2005-06-15 Flipperdisc Ltd An optically readable carrier
JP3956756B2 (ja) 2001-10-31 2007-08-08 ヤマハ株式会社 光ディスク記録装置
EP1629472A4 (en) 2003-06-03 2007-11-07 Lg Electronics Inc HIGH-SEAL RECORDING MEDIUM AND RECORDING AND / OR REPRODUCTION DEVICE THEREFOR
EP1505600A1 (en) 2003-07-30 2005-02-09 Sony DADC Austria AG Disc shaped optical record carrier

Also Published As

Publication number Publication date
JPH11232701A (ja) 1999-08-27

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