JPS5739989A - Heat mode photorecording medium - Google Patents

Heat mode photorecording medium

Info

Publication number
JPS5739989A
JPS5739989A JP55115629A JP11562980A JPS5739989A JP S5739989 A JPS5739989 A JP S5739989A JP 55115629 A JP55115629 A JP 55115629A JP 11562980 A JP11562980 A JP 11562980A JP S5739989 A JPS5739989 A JP S5739989A
Authority
JP
Japan
Prior art keywords
binder
photorecording medium
recording
metal
powder
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.)
Pending
Application number
JP55115629A
Other languages
Japanese (ja)
Inventor
Noriyoshi Nanba
Shigeru Asami
Kazuo Ooya
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP55115629A priority Critical patent/JPS5739989A/en
Publication of JPS5739989A publication Critical patent/JPS5739989A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/251Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials dispersed in an organic matrix

Abstract

PURPOSE:To provide a photorecording medium which has a high recording sensitivity and efficiency, by a method wherein a minute powder, whose mean particle size is 50nm or less, of an alloy including at least 1 kind of metals, such as In, Sn, Ga, etc., is dispersed into a binder to compose the photorecording medium. CONSTITUTION:A minute powder, whose mean particle size is 50nm or less, of an alloy including at least 1 kind of In, Sn, Ga, Bi, Pd, and Hg, having preferably a melting point below 250 deg.C, is dispersed in a binder, such as thermoplastic resin. The binder shows a comparatively low viscosity at a heating temperature generated when the metal minute powder is irradiated with recording light, and is preferably a comparatively low melting point or glass transition point. A ratio of the binder to the metal powder is about 1:99-30:70 in a weight ratio. The dispersion is applied on a substrate to from a recording layer. In the photorecording medium so obtained, a reflection rate becomes almost a zero at a nonirradiation part, and becomes high due to a metal luster at an irradiation part. This obtains a recording point having a high contrast ratio.
JP55115629A 1980-08-21 1980-08-21 Heat mode photorecording medium Pending JPS5739989A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55115629A JPS5739989A (en) 1980-08-21 1980-08-21 Heat mode photorecording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55115629A JPS5739989A (en) 1980-08-21 1980-08-21 Heat mode photorecording medium

Publications (1)

Publication Number Publication Date
JPS5739989A true JPS5739989A (en) 1982-03-05

Family

ID=14667374

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55115629A Pending JPS5739989A (en) 1980-08-21 1980-08-21 Heat mode photorecording medium

Country Status (1)

Country Link
JP (1) JPS5739989A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58118292A (en) * 1982-01-07 1983-07-14 Ulvac Corp Optical recording medium
JPS58188346A (en) * 1982-04-27 1983-11-02 ドレクスラ−・テクノロジイ・コ−ポレ−シヨン Optical data memory and recording medium
JPH01123580U (en) * 1988-02-18 1989-08-22
JPH03103871U (en) * 1989-11-10 1991-10-29
JP2007069483A (en) * 2005-09-07 2007-03-22 Ricoh Co Ltd Rerecording type optical recording medium
US7527914B2 (en) 2001-11-06 2009-05-05 Stx Aprilis, Inc. Reading inhibit agents

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58118292A (en) * 1982-01-07 1983-07-14 Ulvac Corp Optical recording medium
JPH0126355B2 (en) * 1982-01-07 1989-05-23 Ulvac Corp
JPS58188346A (en) * 1982-04-27 1983-11-02 ドレクスラ−・テクノロジイ・コ−ポレ−シヨン Optical data memory and recording medium
JPH0323982B2 (en) * 1982-04-27 1991-04-02 Doretsukusuraa Tekunorojii Corp
JPH01123580U (en) * 1988-02-18 1989-08-22
JPH03103871U (en) * 1989-11-10 1991-10-29
US7527914B2 (en) 2001-11-06 2009-05-05 Stx Aprilis, Inc. Reading inhibit agents
JP2007069483A (en) * 2005-09-07 2007-03-22 Ricoh Co Ltd Rerecording type optical recording medium

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