JPS57203216A - Magnetic head device - Google Patents
Magnetic head deviceInfo
- Publication number
- JPS57203216A JPS57203216A JP8839781A JP8839781A JPS57203216A JP S57203216 A JPS57203216 A JP S57203216A JP 8839781 A JP8839781 A JP 8839781A JP 8839781 A JP8839781 A JP 8839781A JP S57203216 A JPS57203216 A JP S57203216A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- magnetic pole
- recording medium
- main
- permalloy
- 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.)
- Pending
Links
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
- Magnetic Heads (AREA)
Abstract
PURPOSE: To attain high density recording, by fixing a main magnetic pole contacted with one major surface of a magnetic recording medium to a rotatable object.
CONSTITUTION: A main magnetic pole is located on a cylinder 12 in which a "Permalloy " thin film 0.3μ thick is rotatable, so that the direction of track width is orthogonal to the direction of rotation of the cylinder 12. The surface of an auxiliary magnetic pole 13 consisting of an Mn-Zn ferrite core 13a and an energizing widing 13b to the cylinder is formed to a semicylindrical curved surface having the same center as that of the cylinder so that a gap between the main magnetic pole 11 and the auxiliary magnetic pole 13 is constant. A magnetic recording medium 14 formed with a Co-Cr thin film with 0.2μ thickness and a "Permalloy " with 0.2μ thick on a polyethyleneterephthalate film is driven toward the direction 15 of rotating shaft of the cylinder 12 in contact with the cylinder 12. The main magnet pole 11 on the cylinder 12 is a pair with the auxiliary magnetic pole 13 and makes an optimum vertical recording to the film thickness of a vertical recording medium 14.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8839781A JPS57203216A (en) | 1981-06-09 | 1981-06-09 | Magnetic head device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8839781A JPS57203216A (en) | 1981-06-09 | 1981-06-09 | Magnetic head device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57203216A true JPS57203216A (en) | 1982-12-13 |
Family
ID=13941653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8839781A Pending JPS57203216A (en) | 1981-06-09 | 1981-06-09 | Magnetic head device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57203216A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59135609A (en) * | 1983-01-24 | 1984-08-03 | Asaka:Kk | Vertical magnetic recording and reproducing device |
JPS6222702U (en) * | 1985-07-24 | 1987-02-12 | ||
US4703380A (en) * | 1984-02-01 | 1987-10-27 | Olympus Optical Co., Ltd. | Perpendicular magnetic head |
WO2000055848A1 (en) * | 1999-03-16 | 2000-09-21 | Fond Intellektualnykh Tekhnology | Device for recording, reading and storing information |
-
1981
- 1981-06-09 JP JP8839781A patent/JPS57203216A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59135609A (en) * | 1983-01-24 | 1984-08-03 | Asaka:Kk | Vertical magnetic recording and reproducing device |
US4703380A (en) * | 1984-02-01 | 1987-10-27 | Olympus Optical Co., Ltd. | Perpendicular magnetic head |
JPS6222702U (en) * | 1985-07-24 | 1987-02-12 | ||
WO2000055848A1 (en) * | 1999-03-16 | 2000-09-21 | Fond Intellektualnykh Tekhnology | Device for recording, reading and storing information |
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