FR2298850B1 - - Google Patents
Info
- Publication number
- FR2298850B1 FR2298850B1 FR7502137A FR7502137A FR2298850B1 FR 2298850 B1 FR2298850 B1 FR 2298850B1 FR 7502137 A FR7502137 A FR 7502137A FR 7502137 A FR7502137 A FR 7502137A FR 2298850 B1 FR2298850 B1 FR 2298850B1
- 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
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- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G19/00—Processes using magnetic patterns; Apparatus therefor, i.e. magnetography
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Heads (AREA)
- Digital Magnetic Recording (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7502137A FR2298850A1 (fr) | 1975-01-23 | 1975-01-23 | Dispositif d'enregistrement d'informations sur un support magnetique |
| GB220876A GB1529085A (en) | 1975-01-23 | 1976-01-20 | Arrangement for recording information on a magnetic record carrier |
| DE19762601916 DE2601916A1 (de) | 1975-01-23 | 1976-01-20 | Vorrichtung zur aufzeichnung von informationen auf einem magnetischen traeger |
| JP51005520A JPS5197415A (US20070167544A1-20070719-C00007.png) | 1975-01-23 | 1976-01-22 | |
| US05/854,682 US4138702A (en) | 1975-01-23 | 1977-11-25 | Head arrangement for perpendicular recording information on a magnetic record carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7502137A FR2298850A1 (fr) | 1975-01-23 | 1975-01-23 | Dispositif d'enregistrement d'informations sur un support magnetique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2298850A1 FR2298850A1 (fr) | 1976-08-20 |
| FR2298850B1 true FR2298850B1 (US20070167544A1-20070719-C00007.png) | 1977-10-21 |
Family
ID=9150237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7502137A Granted FR2298850A1 (fr) | 1975-01-23 | 1975-01-23 | Dispositif d'enregistrement d'informations sur un support magnetique |
Country Status (4)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2402921A1 (fr) * | 1977-09-07 | 1979-04-06 | Cii Honeywell Bull | Element d'enregistrement magnetique et son procede de fabrication |
| FR2449911A1 (fr) * | 1979-02-23 | 1980-09-19 | Cii Honeywell Bull | Procede d'impression de type magnetique et machine imprimante mettant en oeuvre ce procede |
| FR2522857B1 (fr) * | 1982-03-03 | 1988-01-22 | Cii Honeywell Bull | Dispositif d'ecriture et/ou de lecture d'informations sur un support magnetique, a frottements reduits contre ce support |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2840440A (en) * | 1953-10-07 | 1958-06-24 | Donald J Mclaughlin | Magnetic recording and pickup system |
| DE1153069B (de) * | 1960-02-06 | 1963-08-22 | Grundig Max | Anordnung zur Aufzeichnung von beliebigen Signalen mit einem Quermagnetisierungsmagnetkopf |
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1975
- 1975-01-23 FR FR7502137A patent/FR2298850A1/fr active Granted
-
1976
- 1976-01-20 GB GB220876A patent/GB1529085A/en not_active Expired
- 1976-01-20 DE DE19762601916 patent/DE2601916A1/de not_active Withdrawn
- 1976-01-22 JP JP51005520A patent/JPS5197415A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2601916A1 (de) | 1976-07-29 |
| GB1529085A (en) | 1978-10-18 |
| JPS5197415A (US20070167544A1-20070719-C00007.png) | 1976-08-27 |
| FR2298850A1 (fr) | 1976-08-20 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |