JPS58139342A - 光学式記録再生円盤 - Google Patents

光学式記録再生円盤

Info

Publication number
JPS58139342A
JPS58139342A JP57020020A JP2002082A JPS58139342A JP S58139342 A JPS58139342 A JP S58139342A JP 57020020 A JP57020020 A JP 57020020A JP 2002082 A JP2002082 A JP 2002082A JP S58139342 A JPS58139342 A JP S58139342A
Authority
JP
Japan
Prior art keywords
recording
recording layer
disc
reproducing
disk
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.)
Granted
Application number
JP57020020A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0249493B2 (enrdf_load_stackoverflow
Inventor
Takao Inoue
孝夫 井上
Yukio Maeda
幸男 前田
Masami Uchida
内田　正美
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP57020020A priority Critical patent/JPS58139342A/ja
Priority to US06/548,891 priority patent/US4546464A/en
Priority to PCT/JP1983/000029 priority patent/WO1983002845A1/ja
Priority to EP83900571A priority patent/EP0105374B1/en
Priority to DE8383900571T priority patent/DE3379693D1/de
Publication of JPS58139342A publication Critical patent/JPS58139342A/ja
Publication of JPH0249493B2 publication Critical patent/JPH0249493B2/ja
Granted legal-status Critical Current

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

Landscapes

  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
JP57020020A 1982-02-05 1982-02-10 光学式記録再生円盤 Granted JPS58139342A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP57020020A JPS58139342A (ja) 1982-02-10 1982-02-10 光学式記録再生円盤
US06/548,891 US4546464A (en) 1982-02-05 1983-02-03 Method of manufacturing an optical recording/reproducing disc
PCT/JP1983/000029 WO1983002845A1 (fr) 1982-02-05 1983-02-03 Disque pour enregistrement/reproduction optique
EP83900571A EP0105374B1 (en) 1982-02-05 1983-02-03 Optical recording/reproduction disc
DE8383900571T DE3379693D1 (en) 1982-02-05 1983-02-03 Optical recording/reproduction disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57020020A JPS58139342A (ja) 1982-02-10 1982-02-10 光学式記録再生円盤

Publications (2)

Publication Number Publication Date
JPS58139342A true JPS58139342A (ja) 1983-08-18
JPH0249493B2 JPH0249493B2 (enrdf_load_stackoverflow) 1990-10-30

Family

ID=12015406

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57020020A Granted JPS58139342A (ja) 1982-02-05 1982-02-10 光学式記録再生円盤

Country Status (1)

Country Link
JP (1) JPS58139342A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61117745A (ja) * 1984-11-01 1986-06-05 エナージー・コンバーシヨン・デバイセス・インコーポレーテツド 光学式データ記憶装置とその形成方法
EP2117003A3 (en) * 2006-11-20 2010-01-13 EcoDisc Technology AG Smart video card

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61117745A (ja) * 1984-11-01 1986-06-05 エナージー・コンバーシヨン・デバイセス・インコーポレーテツド 光学式データ記憶装置とその形成方法
EP2117003A3 (en) * 2006-11-20 2010-01-13 EcoDisc Technology AG Smart video card

Also Published As

Publication number Publication date
JPH0249493B2 (enrdf_load_stackoverflow) 1990-10-30

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