JPS6432438A - Optical information recording medium - Google Patents
Optical information recording mediumInfo
- Publication number
- JPS6432438A JPS6432438A JP62188540A JP18854087A JPS6432438A JP S6432438 A JPS6432438 A JP S6432438A JP 62188540 A JP62188540 A JP 62188540A JP 18854087 A JP18854087 A JP 18854087A JP S6432438 A JPS6432438 A JP S6432438A
- Authority
- JP
- Japan
- Prior art keywords
- information recording
- recording medium
- optical information
- gete
- erasing
- 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
Links
Abstract
PURPOSE:To speed up erasing by adding Sb to Ge-Te and specifying the atomic number ratios of Ge, Te and Sb so as to exist within the range enclosed with specific points thereby forming a recording film on an optical information recording medium. CONSTITUTION:Ge, Te and Sb are respectively deposited by vacuum deposition, sputtering, etc., on a glass substrate 2 to form the recording layer 3 consisting of the compsn. within the range enclosed with the lines connecting the points A, B, C, D, and E of the figure. A protective layer 4 consisting of SiO2, AlN, Si3N4, etc., is further deposited thereon. The concn. of Te in the information recording medium is confined to <=50at.% and Sb is added as a 3rd element to said medium. Both the Sb lattice and the GeTe lattice have rhombohedron structure and can be substd. and, therefore, a solid soln. is formed and since the phase sepn. to Te, Sb2Te3 and GeTe, etc., is obviated, the crystallization rate is increased. The erasing is thereby speeded up.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62188540A JPS6432438A (en) | 1987-07-28 | 1987-07-28 | Optical information recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62188540A JPS6432438A (en) | 1987-07-28 | 1987-07-28 | Optical information recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6432438A true JPS6432438A (en) | 1989-02-02 |
Family
ID=16225495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62188540A Pending JPS6432438A (en) | 1987-07-28 | 1987-07-28 | Optical information recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6432438A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01251342A (en) * | 1988-03-31 | 1989-10-06 | Toshiba Corp | Information recording medium |
JPH0211388A (en) * | 1988-06-30 | 1990-01-16 | Ricoh Co Ltd | Sublimation-type thermal transfer recording method |
JPH02130186A (en) * | 1988-11-11 | 1990-05-18 | Toray Ind Inc | Optical recording medium |
JPH0371887A (en) * | 1989-08-11 | 1991-03-27 | Hisankabutsu Glass Kenkyu Kaihatsu Kk | Optical data recording medium |
WO2001085464A1 (en) | 2000-05-12 | 2001-11-15 | Tdk Corporation | Optical recording medium |
US6605328B2 (en) | 2000-06-23 | 2003-08-12 | Tdk Corporation | Optical recording medium |
WO2010070901A1 (en) * | 2008-12-16 | 2010-06-24 | パナソニック株式会社 | Optical information recording medium and recording/reproducing method therefor |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5042841A (en) * | 1973-08-20 | 1975-04-18 | ||
JPS6196536A (en) * | 1984-10-16 | 1986-05-15 | Nippon Columbia Co Ltd | Optical information recording medium and its manufacturing device |
JPS6211683A (en) * | 1985-07-10 | 1987-01-20 | Asahi Chem Ind Co Ltd | Preparation of recording medium |
JPS6253886A (en) * | 1984-12-26 | 1987-03-09 | Asahi Chem Ind Co Ltd | Information-recording medium |
JPS6273438A (en) * | 1985-09-25 | 1987-04-04 | Matsushita Electric Ind Co Ltd | Optical information recording member |
JPS62209742A (en) * | 1986-03-11 | 1987-09-14 | Matsushita Electric Ind Co Ltd | Optical information recording member |
-
1987
- 1987-07-28 JP JP62188540A patent/JPS6432438A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5042841A (en) * | 1973-08-20 | 1975-04-18 | ||
JPS6196536A (en) * | 1984-10-16 | 1986-05-15 | Nippon Columbia Co Ltd | Optical information recording medium and its manufacturing device |
JPS6253886A (en) * | 1984-12-26 | 1987-03-09 | Asahi Chem Ind Co Ltd | Information-recording medium |
JPS6211683A (en) * | 1985-07-10 | 1987-01-20 | Asahi Chem Ind Co Ltd | Preparation of recording medium |
JPS6273438A (en) * | 1985-09-25 | 1987-04-04 | Matsushita Electric Ind Co Ltd | Optical information recording member |
JPS62209742A (en) * | 1986-03-11 | 1987-09-14 | Matsushita Electric Ind Co Ltd | Optical information recording member |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01251342A (en) * | 1988-03-31 | 1989-10-06 | Toshiba Corp | Information recording medium |
JPH0211388A (en) * | 1988-06-30 | 1990-01-16 | Ricoh Co Ltd | Sublimation-type thermal transfer recording method |
JPH02130186A (en) * | 1988-11-11 | 1990-05-18 | Toray Ind Inc | Optical recording medium |
JPH0371887A (en) * | 1989-08-11 | 1991-03-27 | Hisankabutsu Glass Kenkyu Kaihatsu Kk | Optical data recording medium |
WO2001085464A1 (en) | 2000-05-12 | 2001-11-15 | Tdk Corporation | Optical recording medium |
US6605328B2 (en) | 2000-06-23 | 2003-08-12 | Tdk Corporation | Optical recording medium |
WO2010070901A1 (en) * | 2008-12-16 | 2010-06-24 | パナソニック株式会社 | Optical information recording medium and recording/reproducing method therefor |
US8437235B2 (en) | 2008-12-16 | 2013-05-07 | Panasonic Corporation | Optical information recording medium and recording/reproducing method therefor |
JP5398741B2 (en) * | 2008-12-16 | 2014-01-29 | パナソニック株式会社 | Optical information recording medium and recording / reproducing method thereof |
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