JPS6464105A - Composite magnetic head - Google Patents
Composite magnetic headInfo
- Publication number
- JPS6464105A JPS6464105A JP22048187A JP22048187A JPS6464105A JP S6464105 A JPS6464105 A JP S6464105A JP 22048187 A JP22048187 A JP 22048187A JP 22048187 A JP22048187 A JP 22048187A JP S6464105 A JPS6464105 A JP S6464105A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- head
- recording
- reproduction
- 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.)
- Pending
Links
Abstract
PURPOSE:To obtain the titled magnetic head which is small in size and suitable for recording and reproduction with high density, by making both magnetic gap intervals small enough, in a composite head which is formed as one body a recording/reproducing head and an erasing head. CONSTITUTION:A recording/reproducing head is constituted of first and second magnetic cores 5, 6a of a base body of a high magnetic permeability material, in which a coil groove 4 is formed, a gap spacer 7 of SiO2, and a reinforcing part 8. Also, an erasing head is constituted of the second magnetic core 6a, a third magnetic core 11 consisting of a base body of a high magnetic permeability material, in which a coil groove 10 is formed, a gap spacer 13 of SiO2, etc. interposed between both the magnetic cores 6a, 11, and the reinforcing part 8 of glass, etc. The head for recording and reproduction, and erasion uses the second magnetic core 6a jointly, goes to a structure in which a gap interval between the recording/reproduction use magnetic core and the erasion use core is shortened, since no non-magnetic material is provided, and accordingly, a composite magnetic head being small in size and suitable for a high density recording/reproducing device is obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22048187A JPS6464105A (en) | 1987-09-04 | 1987-09-04 | Composite magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22048187A JPS6464105A (en) | 1987-09-04 | 1987-09-04 | Composite magnetic head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6464105A true JPS6464105A (en) | 1989-03-10 |
Family
ID=16751765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22048187A Pending JPS6464105A (en) | 1987-09-04 | 1987-09-04 | Composite magnetic head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6464105A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103053620A (en) * | 2011-10-20 | 2013-04-24 | 南开大学 | Entomopathogenic nematodes insect corpse agent |
-
1987
- 1987-09-04 JP JP22048187A patent/JPS6464105A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103053620A (en) * | 2011-10-20 | 2013-04-24 | 南开大学 | Entomopathogenic nematodes insect corpse agent |
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