JPS5219087B1 - - Google Patents
Info
- Publication number
- JPS5219087B1 JPS5219087B1 JP46042071A JP4207171A JPS5219087B1 JP S5219087 B1 JPS5219087 B1 JP S5219087B1 JP 46042071 A JP46042071 A JP 46042071A JP 4207171 A JP4207171 A JP 4207171A JP S5219087 B1 JPS5219087 B1 JP S5219087B1
- Authority
- JP
- Japan
- 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.)
- Pending
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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6693070A | 1970-08-26 | 1970-08-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5219087B1 true JPS5219087B1 (enExample) | 1977-05-26 |
Family
ID=22072641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP46042071A Pending JPS5219087B1 (enExample) | 1970-08-26 | 1971-06-12 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3668332A (enExample) |
| JP (1) | JPS5219087B1 (enExample) |
| BE (1) | BE771786A (enExample) |
| CA (1) | CA960355A (enExample) |
| DE (1) | DE2142605A1 (enExample) |
| FR (1) | FR2107284A5 (enExample) |
| GB (1) | GB1356005A (enExample) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3769469A (en) * | 1972-06-28 | 1973-10-30 | Ibm | Trim erase mead assembly for providing a uniform erase field |
| US3859664A (en) * | 1973-07-09 | 1975-01-07 | Honeywell Inf Systems | Batch fabricated thin-film transducers having a common pole with tunnel erase poles and a plurality of read/write poles |
| JPS51147312A (en) * | 1975-06-13 | 1976-12-17 | Canon Inc | Magnetic head |
| US4101947A (en) * | 1976-10-04 | 1978-07-18 | Eastman Kodak Company | Narrow track magnetic-head recorder |
| JPS56156920A (en) * | 1980-04-30 | 1981-12-03 | Toshiba Corp | Composite magnetic head and its production |
| JPS57189325A (en) * | 1981-05-18 | 1982-11-20 | Toshiba Corp | Composite magnetic head |
| JPS58215717A (ja) * | 1982-06-09 | 1983-12-15 | Hitachi Ltd | 磁気ヘツド |
| EP0110513A3 (en) * | 1982-10-19 | 1985-09-18 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Common reluctance path multi-gap magnetic transducer |
| JPH0770013B2 (ja) * | 1985-07-17 | 1995-07-31 | 株式会社日立製作所 | フレキシブルディスク装置の情報記録方法 |
| US4821126A (en) * | 1985-10-22 | 1989-04-11 | Fuji Photo Film Co., Ltd. | Magnetic recording method involving core pieces of different thickness |
| US4849841A (en) * | 1987-04-10 | 1989-07-18 | Irwin Magnetic Systems, Inc. | Transducer head core structure with recessed magnetic closures |
| US4894736A (en) * | 1987-10-30 | 1990-01-16 | Ampex Corporation | Bendable E-shaped transducer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL121891C (enExample) * | 1960-05-13 | |||
| US3155949A (en) * | 1961-11-24 | 1964-11-03 | Ibm | Tunnel erase magnetic transducer |
| US3514851A (en) * | 1967-04-03 | 1970-06-02 | Control Data Corp | Method of manufacturing a magnetic head structure |
-
1970
- 1970-08-26 US US66930A patent/US3668332A/en not_active Expired - Lifetime
-
1971
- 1971-03-16 CA CA107,845A patent/CA960355A/en not_active Expired
- 1971-06-12 JP JP46042071A patent/JPS5219087B1/ja active Pending
- 1971-08-24 GB GB3961471A patent/GB1356005A/en not_active Expired
- 1971-08-24 FR FR7132031A patent/FR2107284A5/fr not_active Expired
- 1971-08-25 DE DE19712142605 patent/DE2142605A1/de active Pending
- 1971-08-26 BE BE771786A patent/BE771786A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2142605A1 (de) | 1972-03-02 |
| GB1356005A (en) | 1974-06-12 |
| CA960355A (en) | 1974-12-31 |
| BE771786A (fr) | 1972-02-28 |
| FR2107284A5 (enExample) | 1972-05-05 |
| US3668332A (en) | 1972-06-06 |