DE3164561D1 - Multitrack magnetic head and method of manufacture thereof - Google Patents
Multitrack magnetic head and method of manufacture thereofInfo
- Publication number
- DE3164561D1 DE3164561D1 DE8181105738T DE3164561T DE3164561D1 DE 3164561 D1 DE3164561 D1 DE 3164561D1 DE 8181105738 T DE8181105738 T DE 8181105738T DE 3164561 T DE3164561 T DE 3164561T DE 3164561 D1 DE3164561 D1 DE 3164561D1
- Authority
- DE
- Germany
- Prior art keywords
- manufacture
- magnetic head
- multitrack magnetic
- multitrack
- head
- Prior art date
- 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
- G11B5/127—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
- G11B5/127—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
- G11B5/295—Manufacture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49032—Fabricating head structure or component thereof
- Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49032—Fabricating head structure or component thereof
- Y10T29/49055—Fabricating head structure or component thereof with bond/laminating preformed parts, at least two magnetic
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/183,559 US4366518A (en) | 1980-09-02 | 1980-09-02 | Multi-track head assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3164561D1 true DE3164561D1 (en) | 1984-08-09 |
Family
ID=22673328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8181105738T Expired DE3164561D1 (en) | 1980-09-02 | 1981-07-21 | Multitrack magnetic head and method of manufacture thereof |
Country Status (4)
Country | Link |
---|---|
US (1) | US4366518A (de) |
EP (1) | EP0047383B1 (de) |
JP (1) | JPS5746316A (de) |
DE (1) | DE3164561D1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4396967A (en) * | 1981-04-13 | 1983-08-02 | International Business Machines Corporation | Multielement magnetic head assembly |
US4797767A (en) * | 1986-11-20 | 1989-01-10 | American Magnetics Corporation | Digital magnetic head structure |
US5211734A (en) * | 1989-03-31 | 1993-05-18 | Tdk Corporation | Method for making a magnetic head having surface-reinforced glass |
US5055957A (en) * | 1989-06-19 | 1991-10-08 | International Business Machines Corporation | Method of making low wear glass for magnetic heads |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2785038A (en) * | 1952-06-02 | 1957-03-12 | Rca Corp | Magnetic transducer |
US2840643A (en) * | 1955-04-04 | 1958-06-24 | Hughes Aircraft Co | Integral transformer electromagnetic transducer |
NL253072A (de) * | 1959-06-04 | |||
US3354540A (en) * | 1961-04-07 | 1967-11-28 | Philips Corp | Method of manufacturing reliable magnetic heads having accurately predetermined dimensions |
US3613228A (en) * | 1969-07-02 | 1971-10-19 | Ibm | Manufacture of multielement magnetic head assemblies |
US3655923A (en) * | 1970-02-02 | 1972-04-11 | Ceramic Magnetics Inc | Preformed multiple track magnetic head assembly |
US3943624A (en) * | 1975-01-24 | 1976-03-16 | U. S. Philips Corporation | Method of manufacturing a magnetic head |
GB1529967A (en) * | 1977-04-28 | 1978-10-25 | Bicc Ltd | Magnetic cores |
-
1980
- 1980-09-02 US US06/183,559 patent/US4366518A/en not_active Expired - Lifetime
-
1981
- 1981-06-12 JP JP56089779A patent/JPS5746316A/ja active Granted
- 1981-07-21 DE DE8181105738T patent/DE3164561D1/de not_active Expired
- 1981-07-21 EP EP81105738A patent/EP0047383B1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US4366518A (en) | 1982-12-28 |
EP0047383A1 (de) | 1982-03-17 |
EP0047383B1 (de) | 1984-07-04 |
JPS5746316A (en) | 1982-03-16 |
JPS6333205B2 (de) | 1988-07-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8339 | Ceased/non-payment of the annual fee |