JPS54141110A - Thin metal film type magnetic recording medium - Google Patents
Thin metal film type magnetic recording mediumInfo
- Publication number
- JPS54141110A JPS54141110A JP4955578A JP4955578A JPS54141110A JP S54141110 A JPS54141110 A JP S54141110A JP 4955578 A JP4955578 A JP 4955578A JP 4955578 A JP4955578 A JP 4955578A JP S54141110 A JPS54141110 A JP S54141110A
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- metal film
- thin metal
- magnetic recording
- substrate
- 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
Links
- 230000005291 magnetic effect Effects 0.000 title abstract 4
- 239000002184 metal Substances 0.000 title abstract 3
- 229910052751 metal Inorganic materials 0.000 title abstract 3
- 239000000758 substrate Substances 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 238000000465 moulding Methods 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000005294 ferromagnetic effect Effects 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
Landscapes
- Magnetic Record Carriers (AREA)
- Thin Magnetic Films (AREA)
Abstract
PURPOSE: To prevent output drop due to repeated running, by using a nearly spherical material as the inorganic matter added to the high molecular moldings substrate in a thin metal film type magnetic recording medium composed of nonmagnetic layer and ferromagnetic layer.
CONSTITUTION: In a thin metal film magnetic recording medium formed by disposing a magnetic layer 1 mainly made of iron group elements on a high molecular moldings substrate 3 by way of a nonmagnetic layer 2 of Cu, Sn, W or the like, a material mutually ground to nearly a spherical form is used as the inorganic additive such as Al2O3 and SiO2 to be mixed into the substrate 3. The form of said inorganic substance should not be necessarily accurately spherical, but the satisfactory effect may be obtained when the ratio of the longer axis to the shorter axis is less than 2:1, and the average grain size thereof should be preferably less than the recording wavelength.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4955578A JPS6025802B2 (en) | 1978-04-25 | 1978-04-25 | Metal thin film magnetic tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4955578A JPS6025802B2 (en) | 1978-04-25 | 1978-04-25 | Metal thin film magnetic tape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54141110A true JPS54141110A (en) | 1979-11-02 |
| JPS6025802B2 JPS6025802B2 (en) | 1985-06-20 |
Family
ID=12834437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4955578A Expired JPS6025802B2 (en) | 1978-04-25 | 1978-04-25 | Metal thin film magnetic tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6025802B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57167122A (en) * | 1981-04-03 | 1982-10-14 | Hitachi Maxell Ltd | Magnetic recording medium |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102736235B1 (en) * | 2022-06-16 | 2024-12-03 | 한국원자력연구원 | Multi-wavelength Laser Camera based Gas detection system and Beam Combination Method |
-
1978
- 1978-04-25 JP JP4955578A patent/JPS6025802B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57167122A (en) * | 1981-04-03 | 1982-10-14 | Hitachi Maxell Ltd | Magnetic recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6025802B2 (en) | 1985-06-20 |
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