JPH0115924B2 - - Google Patents
Info
- Publication number
- JPH0115924B2 JPH0115924B2 JP56159476A JP15947681A JPH0115924B2 JP H0115924 B2 JPH0115924 B2 JP H0115924B2 JP 56159476 A JP56159476 A JP 56159476A JP 15947681 A JP15947681 A JP 15947681A JP H0115924 B2 JPH0115924 B2 JP H0115924B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic pole
- side member
- recording
- winding
- 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
- 238000004804 winding Methods 0.000 claims description 27
- 230000005415 magnetization Effects 0.000 claims description 18
- 230000005284 excitation Effects 0.000 claims description 13
- 230000035699 permeability Effects 0.000 claims description 7
- 239000010409 thin film Substances 0.000 claims description 7
- 239000010408 film Substances 0.000 claims description 3
- 230000007423 decrease Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 101100398686 Drosophila melanogaster larp gene Proteins 0.000 description 1
- 101100510663 Mus musculus Larp1 gene Proteins 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
-
- 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
- G11B5/17—Construction or disposition of windings
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56159476A JPS5862810A (ja) | 1981-10-08 | 1981-10-08 | 垂直磁化型磁気ヘッド |
US06/421,738 US4571653A (en) | 1981-10-08 | 1982-09-23 | Perpendicular magnetic recording head |
DE8282108980T DE3268434D1 (en) | 1981-10-08 | 1982-09-28 | Perpendicular magnetic recording head |
EP82108980A EP0076969B1 (en) | 1981-10-08 | 1982-09-28 | Perpendicular magnetic recording head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56159476A JPS5862810A (ja) | 1981-10-08 | 1981-10-08 | 垂直磁化型磁気ヘッド |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5862810A JPS5862810A (ja) | 1983-04-14 |
JPH0115924B2 true JPH0115924B2 (en]) | 1989-03-22 |
Family
ID=15694599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56159476A Granted JPS5862810A (ja) | 1981-10-08 | 1981-10-08 | 垂直磁化型磁気ヘッド |
Country Status (4)
Country | Link |
---|---|
US (1) | US4571653A (en]) |
EP (1) | EP0076969B1 (en]) |
JP (1) | JPS5862810A (en]) |
DE (1) | DE3268434D1 (en]) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4745509A (en) * | 1981-08-21 | 1988-05-17 | Matsushita Electric Industrial Company, Limited | Magnetic head with improved supporter for perpendicular magnetization recording |
JPS60197914A (ja) * | 1984-03-20 | 1985-10-07 | Olympus Optical Co Ltd | 垂直磁化型磁気ヘツド |
JPS6289201A (ja) * | 1985-10-16 | 1987-04-23 | Hitachi Ltd | 磁気記録再生装置 |
US20020171975A1 (en) * | 2001-05-15 | 2002-11-21 | Plumer Martin L. | Writing element with no return path |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2846517A (en) * | 1954-03-01 | 1958-08-05 | North American Aviation Inc | Magnetic head |
US3046359A (en) * | 1959-02-02 | 1962-07-24 | Rca Corp | Magnetic heads |
GB993843A (en) * | 1960-11-17 | 1965-06-02 | Emi Ltd | Improvements in or relating to multitrack magnetic transducing heads |
US3875545A (en) * | 1969-09-12 | 1975-04-01 | Nortec Computer Devices | Variable reluctance transducer |
US4115827A (en) * | 1975-09-22 | 1978-09-19 | Ampex Corporation | Magnetic transducer for narrow track recording and playback |
JPS55125519A (en) * | 1979-03-23 | 1980-09-27 | Hitachi Ltd | Magnetic head |
US4287540A (en) * | 1979-12-07 | 1981-09-01 | International Business Machines Corporation | Stabilized recording |
JPS5687220A (en) * | 1979-12-14 | 1981-07-15 | Toshiba Corp | Vertical magnetization type magnetic head |
JPS5687219A (en) * | 1979-12-14 | 1981-07-15 | Toshiba Corp | Vertical magnetization type magnetic head |
JPS5687217A (en) * | 1979-12-14 | 1981-07-15 | Toshiba Corp | Vertical magnetization type magnetic head and its manufacture |
US4383284A (en) * | 1979-12-14 | 1983-05-10 | Tokyo Shibaura Denki Kabushiki Kaisha | Perpendicular magnetic head and method of manufacturing the same |
JPS56165918A (en) * | 1980-05-23 | 1981-12-19 | Ricoh Co Ltd | Vertical magnetic recorder and reproducer |
-
1981
- 1981-10-08 JP JP56159476A patent/JPS5862810A/ja active Granted
-
1982
- 1982-09-23 US US06/421,738 patent/US4571653A/en not_active Expired - Lifetime
- 1982-09-28 EP EP82108980A patent/EP0076969B1/en not_active Expired
- 1982-09-28 DE DE8282108980T patent/DE3268434D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0076969B1 (en) | 1986-01-08 |
US4571653A (en) | 1986-02-18 |
DE3268434D1 (en) | 1986-02-20 |
JPS5862810A (ja) | 1983-04-14 |
EP0076969A1 (en) | 1983-04-20 |
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