JPH03248338A - Optical information recording medium - Google Patents

Optical information recording medium

Info

Publication number
JPH03248338A
JPH03248338A JP4410690A JP4410690A JPH03248338A JP H03248338 A JPH03248338 A JP H03248338A JP 4410690 A JP4410690 A JP 4410690A JP 4410690 A JP4410690 A JP 4410690A JP H03248338 A JPH03248338 A JP H03248338A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
protective film
zr
ge
si
recording medium
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
JP4410690A
Inventor
Eri Kinou
Kazuhiko Nakamura
Atsushi Uetake
Original Assignee
Sekisui Chem 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

Links

Abstract

PURPOSE: To make improvement in reliability, reproduced signal characteristics and reproducing efficiency by using a protective film consisting of an Si-Zr-Ge-N system as a protective film.
CONSTITUTION: The protective film consisting of the Si-Zr-Ge-N system is used as the protective film of the optical information recording medium constituted by forming a recording layer protected with the protective film on a substrate. The generation of peeling and cracking is suppressed in spite of the conduction of an accelerated deterioration test at and under a high temp. and high humidity by using the Si-Zr-Ge-N film having the excellent adhesive strength as the protective film in such a manner. Since the refractive index is high, the C/N is enhanced by a Kerr enhancement effect and the coefft. of absorption is lowered. The improvement in the reliability, reproduced signal characteristics and reproducing efficiency is made in this way.
COPYRIGHT: (C)1991,JPO&Japio
JP4410690A 1990-02-23 1990-02-23 Optical information recording medium Pending JPH03248338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4410690A JPH03248338A (en) 1990-02-23 1990-02-23 Optical information recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4410690A JPH03248338A (en) 1990-02-23 1990-02-23 Optical information recording medium

Publications (1)

Publication Number Publication Date
JPH03248338A true true JPH03248338A (en) 1991-11-06

Family

ID=12682359

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4410690A Pending JPH03248338A (en) 1990-02-23 1990-02-23 Optical information recording medium

Country Status (1)

Country Link
JP (1) JPH03248338A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6268034B1 (en) 1998-08-05 2001-07-31 Matsushita Electric Industrial Co., Ltd. Optical information recording medium and method for producing the same, method for recording and reproducing information thereon and recording/reproducing apparatus
US6343062B1 (en) 1997-09-26 2002-01-29 Matsushita Electric Industrial Co., Ltd Optical disk device and optical disk for recording and reproducing high-density signals
US6388984B2 (en) 1997-08-28 2002-05-14 Matsushita Electric Industrial Co., Ltd. Optical information recording medium and its recording and reproducing method
US6503690B1 (en) 1997-08-12 2003-01-07 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, method for producing the same, and method for recording and reproducing optical information
US6660451B1 (en) * 1999-06-18 2003-12-09 Matsushita Electric Industrial Co., Ltd. Optical information recording medium
US6821707B2 (en) * 1996-03-11 2004-11-23 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information
US7037413B1 (en) 1996-03-11 2006-05-02 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information
US7169533B2 (en) 2001-03-19 2007-01-30 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, method for manufacturing the same and recording/reproduction method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7037413B1 (en) 1996-03-11 2006-05-02 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information
US6821707B2 (en) * 1996-03-11 2004-11-23 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information
US6503690B1 (en) 1997-08-12 2003-01-07 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, method for producing the same, and method for recording and reproducing optical information
US6388984B2 (en) 1997-08-28 2002-05-14 Matsushita Electric Industrial Co., Ltd. Optical information recording medium and its recording and reproducing method
US6343062B1 (en) 1997-09-26 2002-01-29 Matsushita Electric Industrial Co., Ltd Optical disk device and optical disk for recording and reproducing high-density signals
US6268034B1 (en) 1998-08-05 2001-07-31 Matsushita Electric Industrial Co., Ltd. Optical information recording medium and method for producing the same, method for recording and reproducing information thereon and recording/reproducing apparatus
US6660451B1 (en) * 1999-06-18 2003-12-09 Matsushita Electric Industrial Co., Ltd. Optical information recording medium
US7169533B2 (en) 2001-03-19 2007-01-30 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, method for manufacturing the same and recording/reproduction method

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