JPH0548539B2 - - Google Patents

Info

Publication number: JPH0548539B2
Authority: JP; Japan
Prior art keywords: magneto; optical recording; protective film; comparative example; ratio
Prior art date: 1985-08-28
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.): Expired - Lifetime

Application number

JP18890785A

Other languages

English (en)

Japanese (ja)

Other versions

JPS6247848A (ja

Inventor

Katsuhiko Yorozu

Mikihiko Ito

Junya Tada

Takehiko Sato

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.)

Sumitomo Metal Mining Co Ltd

Original Assignee

Sumitomo Metal Mining 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.)

1985-08-28

Filing date

1985-08-28

Publication date

1993-07-21

1985-08-28 Application filed by Sumitomo Metal Mining Co Ltd filed Critical Sumitomo Metal Mining Co Ltd

1985-08-28 Priority to JP18890785A priority Critical patent/JPS6247848A/ja

1987-03-02 Publication of JPS6247848A publication Critical patent/JPS6247848A/ja

1993-07-21 Publication of JPH0548539B2 publication Critical patent/JPH0548539B2/ja

Status Granted legal-status Critical Current

Links

230000001681 protective effect Effects 0.000 claims description 84
239000000203 mixture Substances 0.000 claims description 45
239000000758 substrate Substances 0.000 claims description 10
230000001678 irradiating effect Effects 0.000 claims 1
239000010408 film Substances 0.000 description 129
230000000052 comparative effect Effects 0.000 description 116
239000010410 layer Substances 0.000 description 37
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 23
239000001301 oxygen Substances 0.000 description 23
229910052760 oxygen Inorganic materials 0.000 description 23
230000007774 longterm Effects 0.000 description 15
238000000034 method Methods 0.000 description 10
230000002123 temporal effect Effects 0.000 description 9
239000000463 material Substances 0.000 description 7
230000015572 biosynthetic process Effects 0.000 description 6
238000005259 measurement Methods 0.000 description 6
238000009792 diffusion process Methods 0.000 description 4
238000004544 sputter deposition Methods 0.000 description 4
238000004519 manufacturing process Methods 0.000 description 3
230000003647 oxidation Effects 0.000 description 3
238000007254 oxidation reaction Methods 0.000 description 3
239000010409 thin film Substances 0.000 description 3
MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
-1 Rare earth transition metal Chemical class 0.000 description 2
230000032683 aging Effects 0.000 description 2
229910045601 alloy Inorganic materials 0.000 description 2
239000000956 alloy Substances 0.000 description 2
230000007797 corrosion Effects 0.000 description 2
238000005260 corrosion Methods 0.000 description 2
230000007423 decrease Effects 0.000 description 2
229910001882 dioxygen Inorganic materials 0.000 description 2
230000000694 effects Effects 0.000 description 2
229910052745 lead Inorganic materials 0.000 description 2
229910052751 metal Inorganic materials 0.000 description 2
239000002184 metal Substances 0.000 description 2
229910052761 rare earth metal Inorganic materials 0.000 description 2
230000008929 regeneration Effects 0.000 description 2
238000011069 regeneration method Methods 0.000 description 2
229910052723 transition metal Inorganic materials 0.000 description 2
229910017061 Fe Co Inorganic materials 0.000 description 1
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
229910052782 aluminium Inorganic materials 0.000 description 1
229910052797 bismuth Inorganic materials 0.000 description 1
229910052796 boron Inorganic materials 0.000 description 1
229910052804 chromium Inorganic materials 0.000 description 1
230000000593 degrading effect Effects 0.000 description 1
230000006866 deterioration Effects 0.000 description 1
239000011521 glass Substances 0.000 description 1
239000011261 inert gas Substances 0.000 description 1
230000035699 permeability Effects 0.000 description 1
239000011347 resin Substances 0.000 description 1
229920005989 resin Polymers 0.000 description 1
239000002356 single layer Substances 0.000 description 1
229910052718 tin Inorganic materials 0.000 description 1
238000007738 vacuum evaporation Methods 0.000 description 1
229910052725 zinc Inorganic materials 0.000 description 1

JP18890785A 1985-08-28 1985-08-28 光磁気デイスク Granted JPS6247848A (ja)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
JP18890785A JPS6247848A (ja)	1985-08-28	1985-08-28	光磁気デイスク

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP18890785A JPS6247848A (ja)	1985-08-28	1985-08-28	光磁気デイスク

Publications (2)

Publication Number	Publication Date
JPS6247848A JPS6247848A (ja)	1987-03-02
JPH0548539B2 true JPH0548539B2 (de)	1993-07-21

Family

ID=16231971

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP18890785A Granted JPS6247848A (ja)	1985-08-28	1985-08-28	光磁気デイスク

Country Status (1)

Country	Link
JP (1)	JPS6247848A (de)

1985
- 1985-08-28 JP JP18890785A patent/JPS6247848A/ja active Granted

Also Published As

Publication number	Publication date
JPS6247848A (ja)	1987-03-02

Publication	Publication Date	Title
JPH0514407B2 (de)	1993-02-25
US5577020A (en)	1996-11-19	Magneto-optical disc with intermediate film layer between a recording film and a dielectric film
US4618537A (en)	1986-10-21	Recording medium
JPH0548539B2 (de)	1993-07-21
JP2556563B2 (ja)	1996-11-20	光磁気記録媒体
JPS62281139A (ja)	1987-12-07	光磁気デイスク
JPS62239349A (ja)	1987-10-20	光磁気記録媒体
EP0502425B1 (de)	1998-04-15	Verfahren zur Herstellung eines magnetooptischen Aufzeichnungsmediums
US5536589A (en)	1996-07-16	Magneto-optical recording medium
JPS6233350A (ja)	1987-02-13	光磁気デイスク
JPS6267750A (ja)	1987-03-27	光磁気デイスク
JPH0777046B2 (ja)	1995-08-16	光磁気デイスク
JPS6252743A (ja)	1987-03-07	光学的記録媒体
JPS60258747A (ja)	1985-12-20	光磁気記録素子
US6048597A (en)	2000-04-11	Optical device and manufacturing method thereof
JP2754658B2 (ja)	1998-05-20	光磁気記録媒体
JPS62121943A (ja)	1987-06-03	光学的記録媒体
JPS60205846A (ja)	1985-10-17	光学的記録媒体
JPS62295232A (ja)	1987-12-22	光学的記録媒体
CA2292025C (en)	2000-11-28	Magneto-optical recording medium and method for producing same
JPS61278061A (ja)	1986-12-08	光磁気記録媒体
JPS63184940A (ja)	1988-07-30	光磁気デイスク
JPS62114134A (ja)	1987-05-25	光学的情報記録媒体
JPH0619860B2 (ja)	1994-03-16	光磁気記録担体
JPS63160037A (ja)	1988-07-02	光磁気デイスク