KR880004447A - 광학적 정보 기록 매체 - Google Patents

광학적 정보 기록 매체 Download PDF

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Publication number
KR880004447A
KR880004447A KR1019870010405A KR870010405A KR880004447A KR 880004447 A KR880004447 A KR 880004447A KR 1019870010405 A KR1019870010405 A KR 1019870010405A KR 870010405 A KR870010405 A KR 870010405A KR 880004447 A KR880004447 A KR 880004447A
Authority
KR
South Korea
Prior art keywords
information recording
optical information
recording media
molecular weight
transparent substrate
Prior art date
Application number
KR1019870010405A
Other languages
English (en)
Other versions
KR960006305B1 (ko
Inventor
케이이찌 니또오
도오루 나가이
쯔도무 노구찌
마유미 미야시따
쥰에쯔 세토
가쯔미 고오노
Original Assignee
소니 가부시끼가이샤
오가 노리오
소니 가부시끼 가이샤
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=16790238&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR880004447(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 소니 가부시끼가이샤, 오가 노리오, 소니 가부시끼 가이샤 filed Critical 소니 가부시끼가이샤
Publication of KR880004447A publication Critical patent/KR880004447A/ko
Application granted granted Critical
Publication of KR960006305B1 publication Critical patent/KR960006305B1/ko

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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
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
    • 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
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • 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
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
    • G11B7/2534—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins polycarbonates [PC]
    • 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
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31507—Of polycarbonate

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

내용 없음

Description

광학적 정보 기록 매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 폴리카보네이트 수지의 정제전과 정제후의 분자량 분포를 비교하여 나타내는 특성도이고
제2도는 폴리카보네이트 수지의 열이력에 의한 분자량 분포의 변화를 나타내는 특성도 이며
제3도는 폴리카보네이트 수지중의 저분자량 성분 함유량이 달라지므로 인한 분자량 변화를 나타내는 특성도이다.

Claims (1)

  1. 투명기판상에 광학적 정보 기록층을 가지는 광학적 정보 기록매체에 있어서, 상기 투명기판이 스티렌 환산분자량 3,500 이하의 저분자량 성분의 함유량이 4중량% 이하인 폴리카보네이트 수지를 주체로하는 수지 재료에 의해 형성됨을 특징으로 하는 광학적 정보 기록매체
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870010405A 1986-09-20 1987-09-19 광학적 정보 기록매체 KR960006305B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP86-222939 1986-09-20
JP22293986A JP2530324B2 (ja) 1986-09-20 1986-09-20 光学的情報記録媒体
JP222939 1986-09-20

Publications (2)

Publication Number Publication Date
KR880004447A true KR880004447A (ko) 1988-06-07
KR960006305B1 KR960006305B1 (ko) 1996-05-13

Family

ID=16790238

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870010405A KR960006305B1 (ko) 1986-09-20 1987-09-19 광학적 정보 기록매체

Country Status (6)

Country Link
US (1) US5993971A (ko)
JP (1) JP2530324B2 (ko)
KR (1) KR960006305B1 (ko)
DE (1) DE3731514C2 (ko)
FR (1) FR2604279B1 (ko)
GB (1) GB2197345B (ko)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2528838B2 (ja) * 1986-10-14 1996-08-28 ソニー株式会社 光学式情報記録媒体
JPS63278929A (ja) * 1987-05-12 1988-11-16 Teijin Chem Ltd 光学用成形品の製造方法
JPH07108938B2 (ja) * 1987-06-18 1995-11-22 出光石油化学株式会社 ポリカーボネートを素材とするディスク基板
JP2621890B2 (ja) * 1987-12-04 1997-06-18 三菱瓦斯化学株式会社 光ディスク用ポリカーボネート成形材料
JP3066865B2 (ja) * 1988-10-27 2000-07-17 三菱レイヨン株式会社 プラスチック光伝送体の製造方法
EP2019121A4 (en) * 2006-05-16 2010-02-10 Mitsubishi Gas Chemical Co POLYCARBONATE RESIN AND OPTICAL MATERIAL COMPRISING SAID RESIN
FR2918058A1 (fr) * 2007-06-28 2009-01-02 Solvay Produit a base de glycerol, procede pour sa purification et son utilisation dans la fabrication de dichloropropanol
KR20110010091A (ko) * 2008-05-13 2011-01-31 테이진 카세이 가부시키가이샤 편광 안경 렌즈

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5521773B2 (ko) * 1972-07-14 1980-06-12
JPS606603B2 (ja) * 1978-08-01 1985-02-19 株式会社クボタ コンバイン
JPS6032698A (ja) * 1983-08-02 1985-02-19 Sumitomo Chem Co Ltd ポリエステル系高密度情報記録担体
JPS60184813A (ja) * 1984-03-05 1985-09-20 Mitsubishi Gas Chem Co Inc デイスク体用ポリカ−ボネ−ト樹脂成形材料の製法
US4631334A (en) * 1984-04-10 1986-12-23 Mitsubishi Gas Chemical Company, Inc. Optical articles of branched polycarbonate resin
JPH0662752B2 (ja) * 1984-08-24 1994-08-17 三菱化成株式会社 光情報材料
JPH0649750B2 (ja) * 1984-08-24 1994-06-29 三菱化成株式会社 ポリカーボネートより成る射出成形材料
JPS61213218A (ja) * 1985-03-19 1986-09-22 Idemitsu Kosan Co Ltd 光学機器用素材
JPS62196127A (ja) * 1986-02-21 1987-08-29 Mitsubishi Chem Ind Ltd 光磁気記録デイスク
JP2552121B2 (ja) * 1986-10-03 1996-11-06 ダイセル化学工業株式会社 光学式デイスク

Also Published As

Publication number Publication date
KR960006305B1 (ko) 1996-05-13
JP2530324B2 (ja) 1996-09-04
GB8721956D0 (en) 1987-10-28
DE3731514A1 (de) 1988-03-24
GB2197345B (en) 1990-09-26
JPS6377932A (ja) 1988-04-08
US5993971A (en) 1999-11-30
FR2604279B1 (fr) 1990-01-12
DE3731514C2 (de) 1998-05-14
FR2604279A1 (fr) 1988-03-25
GB2197345A (en) 1988-05-18

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