DE68914490T2 - Optisches Aufzeichnungsmedium und dessen Herstellungsverfahren. - Google Patents

Optisches Aufzeichnungsmedium und dessen Herstellungsverfahren.

Info

Publication number
DE68914490T2
DE68914490T2 DE1989614490 DE68914490T DE68914490T2 DE 68914490 T2 DE68914490 T2 DE 68914490T2 DE 1989614490 DE1989614490 DE 1989614490 DE 68914490 T DE68914490 T DE 68914490T DE 68914490 T2 DE68914490 T2 DE 68914490T2
Authority
DE
Germany
Prior art keywords
recording medium
manufacturing process
optical recording
optical
manufacturing
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
Application number
DE1989614490
Other languages
English (en)
Other versions
DE68914490D1 (de
Inventor
Akira Takahashi
Michinobu Mieda
Yoshiteru Murakami
Junichiro Nakayama
Tomoyuki Miyake
Kenji Ohta
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Publication of DE68914490D1 publication Critical patent/DE68914490D1/de
Application granted granted Critical
Publication of DE68914490T2 publication Critical patent/DE68914490T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • 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
    • Y10T428/23—Sheet including cover or casing
    • Y10T428/239—Complete cover or casing
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • Y10T428/24529—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface and conforming component on an opposite nonplanar surface
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31507—Of polycarbonate
DE1989614490 1988-02-15 1989-02-15 Optisches Aufzeichnungsmedium und dessen Herstellungsverfahren. Expired - Lifetime DE68914490T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3212388A JP2680591B2 (ja) 1988-02-15 1988-02-15 光メモリ素子の製造方法

Publications (2)

Publication Number Publication Date
DE68914490D1 DE68914490D1 (de) 1994-05-19
DE68914490T2 true DE68914490T2 (de) 1994-11-24

Family

ID=12350107

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1989614490 Expired - Lifetime DE68914490T2 (de) 1988-02-15 1989-02-15 Optisches Aufzeichnungsmedium und dessen Herstellungsverfahren.

Country Status (5)

Country Link
US (1) US5059473A (de)
EP (1) EP0329425B1 (de)
JP (1) JP2680591B2 (de)
CA (1) CA1316603C (de)
DE (1) DE68914490T2 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04149834A (ja) * 1990-10-12 1992-05-22 Pioneer Electron Corp 相変化型光学式情報記録媒体
US5470627A (en) * 1992-03-06 1995-11-28 Quantum Corporation Double-sided optical media for a disk storage device
US5202880A (en) * 1992-03-06 1993-04-13 Digital Equipment Corporation Double-sided magneto-optical media for a multi-disk storage device
US5808974A (en) * 1993-12-22 1998-09-15 Jamail; Randall H. Method of masking data on a storage medium using a directory
US5471443A (en) * 1993-12-22 1995-11-28 Randall Jamail Method of selectively concealing magneto-optical compact disk data for playback upon demand
US5467327A (en) * 1993-12-22 1995-11-14 Jamail; Randall Method of masking data on a storage medium
US5488597A (en) * 1994-04-19 1996-01-30 Alan G. Chen Multilayer optical memory with means for recording and reading information
DE69520920T2 (de) * 1994-10-03 2001-09-27 Matsushita Electric Ind Co Ltd Optisches Informationsmedium, sowie Einheit und Verfahren zu dessen Herstellung
USRE39412E1 (en) 1995-02-15 2006-11-28 Matsushita Electric Industrial Co., Ltd. Optical information medium, and method and apparatus for fabricating the same
US6676791B1 (en) * 1995-03-24 2004-01-13 Jvc Victor Company Of Japan, Ltd. Multilayered optical information-recording media and process for manufacture thereof
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
US5764619A (en) 1995-04-07 1998-06-09 Matsushita Electric Industrial Co., Ltd. Optical recording medium having two separate recording layers
JPH09180251A (ja) * 1995-12-22 1997-07-11 Pioneer Electron Corp ディスク基板、その成形用金型及び光ディスク
JPH113541A (ja) * 1997-06-11 1999-01-06 Sony Corp 光ディスク及びその製造方法
US5922430A (en) * 1998-04-02 1999-07-13 Biddlecome; Robert L. Compact disk protector
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
JP2002536778A (ja) 1999-02-12 2002-10-29 ゼネラル・エレクトリック・カンパニイ データ記憶媒体
TW559800B (en) * 2001-11-27 2003-11-01 Ind Tech Res Inst Manufacturing method for multi-layer information storage medium
TWI297493B (en) * 2002-09-09 2008-06-01 Ind Tech Res Inst Double-sided high-density information storage medium
TWI233936B (en) * 2003-11-07 2005-06-11 Ind Tech Res Inst Polymer material applied to be signal recording layer of multi-layer information storage medium
US20050238145A1 (en) * 2004-04-22 2005-10-27 Sbc Knowledge Ventures, L.P. User interface for "how to use" application of automated self service call center
JP2005332480A (ja) * 2004-05-19 2005-12-02 Fuji Photo Film Co Ltd 光情報記録担体
US20060177622A1 (en) * 2005-02-08 2006-08-10 Wu-Hsuan Ho Structure of double-side optical storage medium

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2306496A1 (fr) * 1975-04-02 1976-10-29 Thomson Brandt Procede de fabrication de supports d'information lisibles optiquement par reflexion et supports obtenus par un tel procede
US4179532A (en) * 1976-04-09 1979-12-18 Polygram Gmbh Process for producing a disc-shaped information carrier which has information in the form of a beam-reflecting structure
US4268369A (en) * 1977-07-18 1981-05-19 Ampex Corporation Process of making silicon dioxide films for use as wear resistant coatings in video and digital magnetic recording
US4363844A (en) * 1980-09-22 1982-12-14 Lewis Terry W Metallized information carrying discs
US4544443A (en) * 1983-05-13 1985-10-01 Shap Kabushiki Kaisha Method for manufacturing an optical memory element
JPS60155424A (ja) * 1984-01-26 1985-08-15 Daicel Chem Ind Ltd 大径のポリカ−ボネ−ト製光デイスク基板およびその製造法
DE3583754D1 (de) * 1984-03-16 1991-09-19 Sharp Kk Verfahren zur herstellung eines optischen speicherelements.
EP0166614A3 (en) * 1984-06-29 1987-12-23 Minnesota Mining And Manufacturing Company Encoated optical recording medium
JPS6124039A (ja) * 1984-07-12 1986-02-01 Pioneer Electronic Corp 情報記録用デイスク及びその製造方法
NL8402681A (nl) * 1984-09-03 1986-04-01 Philips Nv Optisch uitleesbare informatieschijf en methode voor de vervaardiging ervan.
JPS62185264A (ja) * 1986-02-12 1987-08-13 Fuji Photo Film Co Ltd 情報記録媒体
JPS6429530U (de) * 1987-08-14 1989-02-22

Also Published As

Publication number Publication date
EP0329425B1 (de) 1994-04-13
DE68914490D1 (de) 1994-05-19
US5059473A (en) 1991-10-22
JP2680591B2 (ja) 1997-11-19
EP0329425A2 (de) 1989-08-23
CA1316603C (en) 1993-04-20
JPH01208742A (ja) 1989-08-22
EP0329425A3 (en) 1990-10-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

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