HK1012773A1 - Optical data recording media and manufacture thereof - Google Patents

Optical data recording media and manufacture thereof

Info

Publication number
HK1012773A1
HK1012773A1 HK98114105A HK98114105A HK1012773A1 HK 1012773 A1 HK1012773 A1 HK 1012773A1 HK 98114105 A HK98114105 A HK 98114105A HK 98114105 A HK98114105 A HK 98114105A HK 1012773 A1 HK1012773 A1 HK 1012773A1
Authority
HK
Hong Kong
Prior art keywords
manufacture
data recording
recording media
optical data
optical
Prior art date
Application number
HK98114105A
Other languages
English (en)
Inventor
Hisamitsu Kamezaki
Yoshiaki Minagawa
Kazuya Fukunaga
Original Assignee
Hitachi Maxell
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 Hitachi Maxell filed Critical Hitachi Maxell
Publication of HK1012773A1 publication Critical patent/HK1012773A1/xx

Links

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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24073—Tracks
    • G11B7/24076—Cross sectional shape in the radial direction of a disc, e.g. asymmetrical cross sectional shape
    • 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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B7/261—Preparing a master, e.g. exposing photoresist, electroforming
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
HK98114105A 1995-07-07 1998-12-18 Optical data recording media and manufacture thereof HK1012773A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17236595 1995-07-07

Publications (1)

Publication Number Publication Date
HK1012773A1 true HK1012773A1 (en) 1999-08-06

Family

ID=15940562

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98114105A HK1012773A1 (en) 1995-07-07 1998-12-18 Optical data recording media and manufacture thereof

Country Status (5)

Country Link
US (1) US5904969A (xx)
GB (1) GB2303242B (xx)
HK (1) HK1012773A1 (xx)
SG (1) SG43384A1 (xx)
TW (1) TW303462B (xx)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6039898A (en) * 1997-05-08 2000-03-21 O.M.D. Optical Memory Devices, Ltd. Optical memory device and a method for manufacturing thereof
FR2768842B1 (fr) * 1997-09-19 2000-01-07 Maurice Milgram Protection anti-copie d'un disque optique numerique par adjonction d'une zone ayant des proprietes optiques modifiables lors de la lecture
KR100224871B1 (ko) * 1997-09-30 1999-10-15 윤종용 광디스크 및 그 광디스크의 제조방법
JPH11259910A (ja) * 1998-03-13 1999-09-24 Toshiba Corp 光ディスクおよびその原盤製造方法
JP3519623B2 (ja) * 1998-03-13 2004-04-19 株式会社東芝 記録媒体およびその製造方法
US6706358B1 (en) * 1998-04-09 2004-03-16 Seagate Technology Llc Storage disk comprising depressions and /or raised features
US6587427B1 (en) * 1998-06-01 2003-07-01 Terastor Corporation Magneto-optical recording medium
JP3520203B2 (ja) * 1998-07-23 2004-04-19 太陽誘電株式会社 光情報媒体
KR20000025408A (ko) * 1998-10-12 2000-05-06 윤종용 텍스처구조를 지닌 광디스크
WO2001037274A1 (en) * 1999-11-12 2001-05-25 Matsushita Electric Industrial Co., Ltd. Optical disk and optical disk device
JP2002002112A (ja) * 2000-06-26 2002-01-08 Toyo Ink Mfg Co Ltd 透明な記録層を有する光記録媒体及びそれに使用する組成物
US7151729B1 (en) 2000-06-29 2006-12-19 Samsung Electronics Co., Ltd. Optical recording medium having read-only storage area and writeable storage area and recording/reproducing apparatus and method therefor
US20080123491A1 (en) * 2000-09-07 2008-05-29 Samsung Electronics Co., Ltd Optical recording medium having read-only storage area and writeable storage area and recording/reproducing apparatus and method therefor
JP2003109246A (ja) * 2000-09-29 2003-04-11 Matsushita Electric Ind Co Ltd 光ディスクとその作製方法
US6500512B2 (en) * 2001-02-06 2002-12-31 Sony Corporation Apparatus and method for use in the manufacture of multiple layer optical discs
US6982110B2 (en) * 2001-05-25 2006-01-03 Ricoh Company, Ltd. Information recording medium and manufacturing method thereof
DE60304232T2 (de) * 2002-01-11 2006-12-28 Fuji Photo Film Co., Ltd., Minami-Ashigara Optisches Informationsaufzeichnungsmedium
JP3940711B2 (ja) * 2003-07-24 2007-07-04 株式会社東芝 追記型情報記録媒体
JP4285451B2 (ja) * 2005-07-06 2009-06-24 株式会社日立製作所 情報記録媒体、情報再生方法及び情報記録方法
US7957091B2 (en) * 2007-01-23 2011-06-07 Seagate Technology Llc Recordable disc with fluid bearing features
US11421318B2 (en) * 2018-05-04 2022-08-23 Applied Materials, Inc. Methods and apparatus for high reflectivity aluminum layers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3008406B2 (ja) * 1988-06-20 2000-02-14 日立マクセル株式会社 光情報記録媒体及びその製造方法
EP0348122B1 (en) * 1988-06-20 1999-12-08 Hitachi Maxell Ltd. Optical data recording medium and manufacturing method thereof
JP2904434B2 (ja) * 1988-08-12 1999-06-14 パイオニア株式会社 光学式情報記録媒体及びその再生装置
JP2564638B2 (ja) * 1988-12-30 1996-12-18 太陽誘電株式会社 コンパクトディスクの製造方法
JPH05109119A (ja) * 1991-10-14 1993-04-30 Sony Corp 光デイスク
EP0549488B1 (en) * 1991-12-20 1998-09-30 Eastman Kodak Company A storage media for an optical information system having an identification code embedded therein
US5591501A (en) * 1995-12-20 1997-01-07 Energy Conversion Devices, Inc. Optical recording medium having a plurality of discrete phase change data recording points

Also Published As

Publication number Publication date
US5904969A (en) 1999-05-18
GB2303242B (en) 1999-11-24
SG43384A1 (en) 1997-10-17
GB9614301D0 (en) 1996-09-04
GB2303242A (en) 1997-02-12
TW303462B (xx) 1997-04-21

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20040708