FR2203130B1 - - Google Patents
Info
- Publication number
- FR2203130B1 FR2203130B1 FR7336579A FR7336579A FR2203130B1 FR 2203130 B1 FR2203130 B1 FR 2203130B1 FR 7336579 A FR7336579 A FR 7336579A FR 7336579 A FR7336579 A FR 7336579A FR 2203130 B1 FR2203130 B1 FR 2203130B1
- Authority
- FR
- France
- 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
Links
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
- G11B5/7013—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 dispersing agent
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722250384 DE2250384C3 (de) | 1972-10-13 | 1972-10-13 | Magnetisches Speichermedium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2203130A1 FR2203130A1 (nl) | 1974-05-10 |
| FR2203130B1 true FR2203130B1 (nl) | 1979-03-30 |
Family
ID=5859014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7336579A Expired FR2203130B1 (nl) | 1972-10-13 | 1973-10-12 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE805550A (nl) |
| DE (1) | DE2250384C3 (nl) |
| FR (1) | FR2203130B1 (nl) |
| GB (1) | GB1415949A (nl) |
| IT (1) | IT994393B (nl) |
| NL (1) | NL7313596A (nl) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6047650B2 (ja) * | 1976-06-22 | 1985-10-23 | ソニー株式会社 | 磁気記録媒体とその製法 |
| DE3125567C2 (de) * | 1981-06-30 | 1986-11-06 | Agfa-Gevaert Ag, 5090 Leverkusen | Verfahren zur Dispergierung von nadelförmigen magnetischen Pigmenten in einem polymeren Bindemittel unter Verwendung von organischen Borverbindungen als Dispergatoren |
| DE3526415A1 (de) * | 1985-07-24 | 1987-02-05 | Basf Ag | Verfahren zur herstellung von magnetischen aufzeichnungstraegern |
| JPS62128022A (ja) * | 1985-11-29 | 1987-06-10 | Victor Co Of Japan Ltd | 磁気記録媒体 |
| DE3825619A1 (de) * | 1988-07-28 | 1990-02-01 | Agfa Gevaert Ag | Verfahren zur herstellung eines magnetischen aufzeichnungstraegers |
-
1972
- 1972-10-13 DE DE19722250384 patent/DE2250384C3/de not_active Expired
-
1973
- 1973-10-02 BE BE1005395A patent/BE805550A/nl unknown
- 1973-10-03 NL NL7313596A patent/NL7313596A/xx not_active Application Discontinuation
- 1973-10-11 IT IT5305373A patent/IT994393B/it active
- 1973-10-12 FR FR7336579A patent/FR2203130B1/fr not_active Expired
- 1973-10-12 GB GB4766373A patent/GB1415949A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT994393B (it) | 1975-10-20 |
| BE805550A (nl) | 1974-04-02 |
| DE2250384C3 (de) | 1980-12-11 |
| DE2250384A1 (de) | 1974-04-25 |
| NL7313596A (nl) | 1974-03-25 |
| DE2250384B2 (de) | 1980-04-24 |
| FR2203130A1 (nl) | 1974-05-10 |
| GB1415949A (en) | 1975-12-03 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |