JPS6220606B2 - - Google Patents
Info
- Publication number
- JPS6220606B2 JPS6220606B2 JP54077159A JP7715979A JPS6220606B2 JP S6220606 B2 JPS6220606 B2 JP S6220606B2 JP 54077159 A JP54077159 A JP 54077159A JP 7715979 A JP7715979 A JP 7715979A JP S6220606 B2 JPS6220606 B2 JP S6220606B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic flux
- film
- present
- eddy current
- 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
- 230000004907 flux Effects 0.000 claims description 29
- 230000000694 effects Effects 0.000 claims description 11
- 230000004044 response Effects 0.000 claims description 2
- 239000011162 core material Substances 0.000 description 11
- 229910000859 α-Fe Inorganic materials 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910000702 sendust Inorganic materials 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000758 substrate Substances 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7715979A JPS563424A (en) | 1979-06-19 | 1979-06-19 | Magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7715979A JPS563424A (en) | 1979-06-19 | 1979-06-19 | Magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS563424A JPS563424A (en) | 1981-01-14 |
| JPS6220606B2 true JPS6220606B2 (US07534539-20090519-C00280.png) | 1987-05-08 |
Family
ID=13626006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7715979A Granted JPS563424A (en) | 1979-06-19 | 1979-06-19 | Magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS563424A (US07534539-20090519-C00280.png) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1983003918A1 (en) * | 1982-05-04 | 1983-11-10 | Eastman Kodak Company | Magnetic head having highly saturable gap liner |
| US7099121B2 (en) * | 2002-06-06 | 2006-08-29 | Seagate Technology Llc | Perpendicular magnetic recording head having a reduced field under the return pole and minimal eddy current losses |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5122649U (US07534539-20090519-C00280.png) * | 1974-08-09 | 1976-02-19 | ||
| JPS5347811A (en) * | 1976-10-12 | 1978-04-28 | Matsushita Electric Ind Co Ltd | Magnetic head |
| JPS5573918A (en) * | 1978-11-27 | 1980-06-04 | Sony Corp | Magnetic head |
| JPS55157121A (en) * | 1979-05-19 | 1980-12-06 | Nippon Telegr & Teleph Corp <Ntt> | Magnetic head core |
-
1979
- 1979-06-19 JP JP7715979A patent/JPS563424A/ja active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5122649U (US07534539-20090519-C00280.png) * | 1974-08-09 | 1976-02-19 | ||
| JPS5347811A (en) * | 1976-10-12 | 1978-04-28 | Matsushita Electric Ind Co Ltd | Magnetic head |
| JPS5573918A (en) * | 1978-11-27 | 1980-06-04 | Sony Corp | Magnetic head |
| JPS55157121A (en) * | 1979-05-19 | 1980-12-06 | Nippon Telegr & Teleph Corp <Ntt> | Magnetic head core |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS563424A (en) | 1981-01-14 |
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