DE3671121D1 - Magnetkopf und verfahren zu seiner herstellung. - Google Patents
Magnetkopf und verfahren zu seiner herstellung.Info
- Publication number
- DE3671121D1 DE3671121D1 DE8686101864T DE3671121T DE3671121D1 DE 3671121 D1 DE3671121 D1 DE 3671121D1 DE 8686101864 T DE8686101864 T DE 8686101864T DE 3671121 T DE3671121 T DE 3671121T DE 3671121 D1 DE3671121 D1 DE 3671121D1
- Authority
- DE
- Germany
- Prior art keywords
- production
- magnetic head
- magnetic
- 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 - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/048—Lapping machines or devices; Accessories designed for working plane surfaces of sliders and magnetic heads of hard disc drives or the like
-
- 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
- G11B5/2651—Manufacture
-
- 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
- G11B5/2652—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative
- G11B5/2654—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative for recording or erasing
- G11B5/2655—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative for recording or erasing with all the gaps disposed within the track or "guard band" between tracks, e.g. with erase gaps operative on track edges, with wide erase gap followed by narrow write gap
-
- 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]
- Y10T29/4905—Employing workholding means
-
- 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
-
- 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
- Y10T29/49799—Providing transitory integral holding or handling portion
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60036274A JPS61196412A (ja) | 1985-02-27 | 1985-02-27 | 磁気ヘツドとその製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3671121D1 true DE3671121D1 (de) | 1990-06-13 |
Family
ID=12465192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8686101864T Expired - Fee Related DE3671121D1 (de) | 1985-02-27 | 1986-02-14 | Magnetkopf und verfahren zu seiner herstellung. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4745676A (de) |
EP (1) | EP0193044B1 (de) |
JP (1) | JPS61196412A (de) |
DE (1) | DE3671121D1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5063468A (en) * | 1990-05-08 | 1991-11-05 | North American Philips Corporation | Compatible magnetic head assembly |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3846840A (en) * | 1973-08-10 | 1974-11-05 | Ibm | Read/write and longitudinal edge erase head assembly having multiple similarly shaped layers |
US4058846A (en) * | 1976-06-21 | 1977-11-15 | International Business Machines Corporation | Grounded transducer for magnetic record disks |
US4276574A (en) * | 1979-12-06 | 1981-06-30 | International Business Machines Corporation | Read/write and tunnel erase magnetic head assembly |
JPS5860423A (ja) * | 1981-10-07 | 1983-04-09 | Hitachi Metals Ltd | 磁気ヘツド装置 |
JPS58150126A (ja) * | 1982-03-02 | 1983-09-06 | Hitachi Ltd | 磁気ヘツドの製造方法 |
EP0110050B1 (de) * | 1982-10-01 | 1988-06-01 | Mitsubishi Denki Kabushiki Kaisha | Platteneinheit für Disketten mit verschiedenen Spurbreiten |
JPS6028013A (ja) * | 1983-07-26 | 1985-02-13 | Canon Electronics Inc | 磁気ヘツド |
JPS6029913A (ja) * | 1983-07-29 | 1985-02-15 | Canon Electronics Inc | 磁気ヘツド |
-
1985
- 1985-02-27 JP JP60036274A patent/JPS61196412A/ja active Pending
-
1986
- 1986-02-07 US US06/827,266 patent/US4745676A/en not_active Expired - Fee Related
- 1986-02-14 DE DE8686101864T patent/DE3671121D1/de not_active Expired - Fee Related
- 1986-02-14 EP EP86101864A patent/EP0193044B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0193044A1 (de) | 1986-09-03 |
US4745676A (en) | 1988-05-24 |
JPS61196412A (ja) | 1986-08-30 |
EP0193044B1 (de) | 1990-05-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |