JPS6226084B2 - - Google Patents
Info
- Publication number
- JPS6226084B2 JPS6226084B2 JP3631577A JP3631577A JPS6226084B2 JP S6226084 B2 JPS6226084 B2 JP S6226084B2 JP 3631577 A JP3631577 A JP 3631577A JP 3631577 A JP3631577 A JP 3631577A JP S6226084 B2 JPS6226084 B2 JP S6226084B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic pole
- pole
- main
- auxiliary
- 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
- 230000035699 permeability Effects 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims 1
- 238000009826 distribution Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 12
- 238000004804 winding Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 230000005415 magnetization Effects 0.000 description 7
- 239000002344 surface layer Substances 0.000 description 7
- 239000010410 layer Substances 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 239000011162 core material Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 229910000702 sendust 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Magnetic Heads (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3631577A JPS53121608A (en) | 1977-03-31 | 1977-03-31 | Magnetic recording system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3631577A JPS53121608A (en) | 1977-03-31 | 1977-03-31 | Magnetic recording system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53121608A JPS53121608A (en) | 1978-10-24 |
| JPS6226084B2 true JPS6226084B2 (en]) | 1987-06-06 |
Family
ID=12466395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3631577A Granted JPS53121608A (en) | 1977-03-31 | 1977-03-31 | Magnetic recording system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS53121608A (en]) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5613514A (en) * | 1979-07-16 | 1981-02-09 | Olympus Optical Co Ltd | Magnetic head |
| JPS5616932A (en) * | 1979-07-18 | 1981-02-18 | Olympus Optical Co Ltd | Recording and reproducing head for vertical magnetic recording and manufacture of this recording and reproducing head and recording and reproducing unit using this recording and reproducing head |
| US4317148A (en) * | 1980-01-24 | 1982-02-23 | Sperry Corporation | Transducer for perpendicular magnetic recording |
| JPS5737713A (en) * | 1980-08-20 | 1982-03-02 | Seiko Epson Corp | Vertical magnetic recording head |
| JPS57162112A (en) * | 1981-03-30 | 1982-10-05 | Nec Corp | Magnetic head for vertical magnetic recording and reproduction |
| JPS5897117A (ja) * | 1981-12-03 | 1983-06-09 | Nippon Columbia Co Ltd | 磁気ヘッド |
| JPS5898805A (ja) * | 1981-12-07 | 1983-06-11 | Akai Electric Co Ltd | 磁気記録方式 |
| JPS58165733U (ja) * | 1982-04-28 | 1983-11-04 | ティーディーケイ株式会社 | 磁気記録ヘツド |
| JPS5971115A (ja) * | 1982-10-15 | 1984-04-21 | Hitachi Ltd | 磁気ヘッド |
| JPS59178610A (ja) * | 1983-03-29 | 1984-10-09 | Fujitsu Ltd | 垂直磁化記録用薄膜ヘツド |
| JP4244216B2 (ja) | 2005-04-08 | 2009-03-25 | 東海旅客鉄道株式会社 | 集電舟装置 |
-
1977
- 1977-03-31 JP JP3631577A patent/JPS53121608A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53121608A (en) | 1978-10-24 |
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