BE852362A - Oxyde ferrique pour l'enregistrement magnetique et procede pour sa fabrication - Google Patents
Oxyde ferrique pour l'enregistrement magnetique et procede pour sa fabricationInfo
- Publication number
- BE852362A BE852362A BE175714A BE175714A BE852362A BE 852362 A BE852362 A BE 852362A BE 175714 A BE175714 A BE 175714A BE 175714 A BE175714 A BE 175714A BE 852362 A BE852362 A BE 852362A
- Authority
- BE
- Belgium
- Prior art keywords
- manufacturing
- magnetic recording
- ferric oxide
- ferric
- oxide
- Prior art date
Links
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
- G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
- G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
- G11B5/70652—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3
- G11B5/70668—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3 containing a dopant
- G11B5/70673—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3 containing a dopant containing Co
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7607074A FR2344107A1 (fr) | 1976-03-12 | 1976-03-12 | Oxyde ferrique aciculaire pour l'enregistrement magnetique et procede pour sa fabrication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE852362A true BE852362A (fr) | 1977-09-12 |
Family
ID=9170308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE175714A BE852362A (fr) | 1976-03-12 | 1977-03-10 | Oxyde ferrique pour l'enregistrement magnetique et procede pour sa fabrication |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS52114499A (enrdf_load_stackoverflow) |
| BE (1) | BE852362A (enrdf_load_stackoverflow) |
| DE (1) | DE2710776A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2344107A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1552405A (enrdf_load_stackoverflow) |
| NL (1) | NL7702651A (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57501053A (enrdf_load_stackoverflow) * | 1980-07-16 | 1982-06-10 | ||
| JPS5826035A (ja) * | 1981-07-31 | 1983-02-16 | Ishihara Sangyo Kaisha Ltd | コバルト含有磁性酸化鉄の製造方法 |
| DE3514008A1 (de) * | 1985-04-18 | 1986-10-23 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung isotroper magnetischer, kobalthaltiger eisenoxide aus eisen (iii)-salzen |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD91017A (enrdf_load_stackoverflow) * | ||||
| JPS5523449B2 (enrdf_load_stackoverflow) * | 1974-08-11 | 1980-06-23 | ||
| JPS5422838B2 (enrdf_load_stackoverflow) * | 1974-08-11 | 1979-08-09 |
-
1976
- 1976-03-12 FR FR7607074A patent/FR2344107A1/fr active Granted
-
1977
- 1977-03-10 BE BE175714A patent/BE852362A/xx not_active IP Right Cessation
- 1977-03-11 DE DE19772710776 patent/DE2710776A1/de not_active Withdrawn
- 1977-03-11 JP JP2686877A patent/JPS52114499A/ja active Pending
- 1977-03-11 GB GB1044877A patent/GB1552405A/en not_active Expired
- 1977-03-11 NL NL7702651A patent/NL7702651A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52114499A (en) | 1977-09-26 |
| NL7702651A (nl) | 1977-09-14 |
| FR2344107B1 (enrdf_load_stackoverflow) | 1980-04-30 |
| DE2710776A1 (de) | 1977-09-15 |
| GB1552405A (en) | 1979-09-12 |
| FR2344107A1 (fr) | 1977-10-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: EASTMAN KODAK CY Effective date: 19860331 |