NL121891C - - Google Patents
Info
- Publication number
- NL121891C NL121891C NL121891DA NL121891C NL 121891 C NL121891 C NL 121891C NL 121891D A NL121891D A NL 121891DA NL 121891 C NL121891 C NL 121891C
- Authority
- NL
- Netherlands
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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/488—Disposition of heads
-
- 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
- G11B5/004—Recording on, or reproducing or erasing from, magnetic drums
-
- 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
-
- 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
- G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Digital Magnetic Recording (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28881A US3132214A (en) | 1960-05-13 | 1960-05-13 | Magnetic recorder head assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL121891C true NL121891C (https=) |
Family
ID=21846033
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL121891D NL121891C (https=) | 1960-05-13 | ||
| NL264552D NL264552A (https=) | 1960-05-13 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL264552D NL264552A (https=) | 1960-05-13 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3132214A (https=) |
| CH (1) | CH412001A (https=) |
| GB (1) | GB943558A (https=) |
| NL (2) | NL264552A (https=) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3325795A (en) * | 1963-05-20 | 1967-06-13 | Cons Electrodynamics Corp | High resolution digital magnetic head with flux focusing shield |
| NL6402051A (https=) * | 1964-02-29 | 1965-08-30 | ||
| NL156528B (nl) * | 1966-09-15 | 1978-04-17 | Philips Nv | Magnetische schrijf-lees-wiskop. |
| GB1291615A (en) * | 1970-05-26 | 1972-10-04 | Int Computers Ltd | Improvements in or relating to magnetic recording apparatus |
| US3668332A (en) * | 1970-08-26 | 1972-06-06 | Xerox Corp | Magnetic recording heat which accurately defines the width of the recording track |
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2538892A (en) * | 1946-12-04 | 1951-01-23 | Brush Dev Co | System to prevent accidental rerecording on a magnetic record |
| US2668878A (en) * | 1950-07-29 | 1954-02-09 | Webster Electric Co Inc | Transducer |
| US2736776A (en) * | 1951-06-02 | 1956-02-28 | Armour Res Found | Magnetic recorder head assembly |
| US2987582A (en) * | 1955-08-12 | 1961-06-06 | Sperry Rand Corp | Multichannel magnetic erasing heads |
| US2927974A (en) * | 1956-08-29 | 1960-03-08 | Sperry Rand Corp | Magnetic transducer |
-
0
- NL NL121891D patent/NL121891C/xx active
- NL NL264552D patent/NL264552A/xx unknown
-
1960
- 1960-05-13 US US28881A patent/US3132214A/en not_active Expired - Lifetime
-
1961
- 1961-05-10 GB GB17093/61A patent/GB943558A/en not_active Expired
- 1961-05-13 CH CH562861A patent/CH412001A/it unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL264552A (https=) | |
| GB943558A (en) | 1963-12-04 |
| US3132214A (en) | 1964-05-05 |
| CH412001A (it) | 1966-04-30 |