JPS5220255B2 - - Google Patents
Info
- Publication number
- JPS5220255B2 JPS5220255B2 JP48065472A JP6547273A JPS5220255B2 JP S5220255 B2 JPS5220255 B2 JP S5220255B2 JP 48065472 A JP48065472 A JP 48065472A JP 6547273 A JP6547273 A JP 6547273A JP S5220255 B2 JPS5220255 B2 JP S5220255B2
- 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.)
- 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
- G11B5/48—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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
-
- 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 |
|---|---|---|---|
| US26694772A | 1972-06-28 | 1972-06-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4958816A JPS4958816A (enExample) | 1974-06-07 |
| JPS5220255B2 true JPS5220255B2 (enExample) | 1977-06-02 |
Family
ID=23016637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48065472A Expired JPS5220255B2 (enExample) | 1972-06-28 | 1973-06-12 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3769469A (enExample) |
| JP (1) | JPS5220255B2 (enExample) |
| CA (1) | CA998470A (enExample) |
| DE (1) | DE2329693A1 (enExample) |
| FR (1) | FR2191188B1 (enExample) |
| GB (1) | GB1402681A (enExample) |
| IT (1) | IT982621B (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5788509A (en) * | 1980-11-20 | 1982-06-02 | Ibm | Protective device for data of magnetic recording device |
| US4819092A (en) * | 1987-05-08 | 1989-04-04 | Colorado Memory Systems, Inc. | Apparatus for writing signal density information on a magnetic medium |
| AU6626294A (en) * | 1993-04-09 | 1994-11-08 | Washington University | Magnetic recording head with continuously monitored track following servo |
| US6564307B1 (en) | 1999-08-18 | 2003-05-13 | International Business Machines Corporation | Method, system, and program for logically erasing data |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB832036A (en) * | 1958-01-15 | 1960-04-06 | Gerhard Dirks | Improvements in or relating to magnetic recording and reading apparatus |
| US3155949A (en) * | 1961-11-24 | 1964-11-03 | Ibm | Tunnel erase magnetic transducer |
| US3504134A (en) * | 1966-07-13 | 1970-03-31 | Ncr Co | Multiple magnetic head with a strip core having a common base portion |
| NL156528B (nl) * | 1966-09-15 | 1978-04-17 | Philips Nv | Magnetische schrijf-lees-wiskop. |
| US3684841A (en) * | 1969-12-30 | 1972-08-15 | Honeywell Inc | Multi-channel magnetic transducer structure having full width erase head in non-magnetic housing |
| US3668332A (en) * | 1970-08-26 | 1972-06-06 | Xerox Corp | Magnetic recording heat which accurately defines the width of the recording track |
-
1972
- 1972-06-28 US US00266947A patent/US3769469A/en not_active Expired - Lifetime
-
1973
- 1973-03-06 IT IT22104/73A patent/IT982621B/it active
- 1973-05-10 CA CA171,177A patent/CA998470A/en not_active Expired
- 1973-05-30 GB GB2581373A patent/GB1402681A/en not_active Expired
- 1973-06-06 FR FR7321777A patent/FR2191188B1/fr not_active Expired
- 1973-06-09 DE DE2329693A patent/DE2329693A1/de active Pending
- 1973-06-12 JP JP48065472A patent/JPS5220255B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2329693A1 (de) | 1974-01-17 |
| GB1402681A (en) | 1975-08-13 |
| IT982621B (it) | 1974-10-21 |
| FR2191188A1 (enExample) | 1974-02-01 |
| FR2191188B1 (enExample) | 1976-09-17 |
| JPS4958816A (enExample) | 1974-06-07 |
| US3769469A (en) | 1973-10-30 |
| CA998470A (en) | 1976-10-12 |