JPS5740727A - Magnetic head device - Google Patents
Magnetic head deviceInfo
- Publication number
- JPS5740727A JPS5740727A JP11549180A JP11549180A JPS5740727A JP S5740727 A JPS5740727 A JP S5740727A JP 11549180 A JP11549180 A JP 11549180A JP 11549180 A JP11549180 A JP 11549180A JP S5740727 A JPS5740727 A JP S5740727A
- Authority
- JP
- Japan
- Prior art keywords
- erasure
- magnetic head
- width
- recording
- core
- 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.)
- Granted
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
- G11B5/265—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)
Abstract
PURPOSE:To improve the precision of erasure gap width by adding an erasure gap restricting material to recording head. CONSTITUTION:A magnetic head consists of a magnetic head core 7 for recording and reproduction, a head core 2 for erasure, and a nonmagnetic auxiliary plate 4, and in the magnetic head core 7, a notched part 10 is formed. The notched part 10 is equivalent to erasure gap width 9. The width of the head core 7 can be made greater than recording and reproduction track width by the erasure gap width and while high-efficiency electromagnetic conversion characteristics are obtained by a decrease in magnetic resistance, high track density is attained easily. The notched part 10 is charged with a nonmagnetic material, such as glass or resin, to prevent the breaking of the core. This charged nonmagnetic material serves as the restricting material of the erasure gap.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11549180A JPS5740727A (en) | 1980-08-22 | 1980-08-22 | Magnetic head device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11549180A JPS5740727A (en) | 1980-08-22 | 1980-08-22 | Magnetic head device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5740727A true JPS5740727A (en) | 1982-03-06 |
JPS6153765B2 JPS6153765B2 (en) | 1986-11-19 |
Family
ID=14663823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11549180A Granted JPS5740727A (en) | 1980-08-22 | 1980-08-22 | Magnetic head device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5740727A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58155632U (en) * | 1982-04-09 | 1983-10-18 | 松下電器産業株式会社 | erase head device |
JPS5992421U (en) * | 1982-12-14 | 1984-06-22 | アルプス電気株式会社 | magnetic head |
US4886153A (en) * | 1986-10-16 | 1989-12-12 | Kabushiki Kaisha Daikin Seisakusho | Cooling mechanism of a clutch cover assembly |
US4923046A (en) * | 1986-10-15 | 1990-05-08 | Kabushiki Kaisha Daikin Seisakusho | Cooling mechanism of a clutch cover assembly |
-
1980
- 1980-08-22 JP JP11549180A patent/JPS5740727A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58155632U (en) * | 1982-04-09 | 1983-10-18 | 松下電器産業株式会社 | erase head device |
JPS5992421U (en) * | 1982-12-14 | 1984-06-22 | アルプス電気株式会社 | magnetic head |
JPH0110737Y2 (en) * | 1982-12-14 | 1989-03-28 | ||
US4923046A (en) * | 1986-10-15 | 1990-05-08 | Kabushiki Kaisha Daikin Seisakusho | Cooling mechanism of a clutch cover assembly |
US4886153A (en) * | 1986-10-16 | 1989-12-12 | Kabushiki Kaisha Daikin Seisakusho | Cooling mechanism of a clutch cover assembly |
Also Published As
Publication number | Publication date |
---|---|
JPS6153765B2 (en) | 1986-11-19 |
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