JPH0568763B2 - - Google Patents
Info
- Publication number
- JPH0568763B2 JPH0568763B2 JP16927187A JP16927187A JPH0568763B2 JP H0568763 B2 JPH0568763 B2 JP H0568763B2 JP 16927187 A JP16927187 A JP 16927187A JP 16927187 A JP16927187 A JP 16927187A JP H0568763 B2 JPH0568763 B2 JP H0568763B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- magnetic
- magneto
- thin film
- optical disk
- 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 - Fee Related
Links
- 239000010409 thin film Substances 0.000 claims description 38
- 230000035699 permeability Effects 0.000 claims description 25
- 239000000696 magnetic material Substances 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000010408 film Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 229910000889 permalloy Inorganic materials 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16927187A JPS6413203A (en) | 1987-07-06 | 1987-07-06 | Thin film electromagnet impressing magnetic field for optical magnetic disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16927187A JPS6413203A (en) | 1987-07-06 | 1987-07-06 | Thin film electromagnet impressing magnetic field for optical magnetic disk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6413203A JPS6413203A (en) | 1989-01-18 |
| JPH0568763B2 true JPH0568763B2 (ru) | 1993-09-29 |
Family
ID=15883413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16927187A Granted JPS6413203A (en) | 1987-07-06 | 1987-07-06 | Thin film electromagnet impressing magnetic field for optical magnetic disk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6413203A (ru) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5293360A (en) * | 1989-03-09 | 1994-03-08 | Canon Kabushiki Kaisha | Magnetic field generating device |
| JPH02235205A (ja) * | 1989-03-09 | 1990-09-18 | Canon Inc | バイアス磁界発生器 |
| JP2524141Y2 (ja) * | 1989-09-22 | 1997-01-29 | ソニー株式会社 | 光磁気記録ヘッド |
| JP2861188B2 (ja) * | 1990-01-31 | 1999-02-24 | ソニー株式会社 | 光磁気記録再生装置 |
-
1987
- 1987-07-06 JP JP16927187A patent/JPS6413203A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6413203A (en) | 1989-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH065585B2 (ja) | 光磁気記憶装置 | |
| US4518657A (en) | Recording medium and recording-reproduction system provided with the recording medium | |
| JPH0630183B2 (ja) | 光磁気記録再生消去方法及びその装置 | |
| JPH0568763B2 (ru) | ||
| JPS6217282B2 (ru) | ||
| JPH0341906B2 (ru) | ||
| JP2811673B2 (ja) | 光磁気ディスク用磁界印加電磁石 | |
| JP2808597B2 (ja) | 光磁気ディスク用磁界印加電磁石 | |
| JPH0325854B2 (ru) | ||
| JPH0568764B2 (ru) | ||
| JP2604700B2 (ja) | 光磁気記録再生消去方式及び装置 | |
| JP2591729B2 (ja) | 光磁気記録再生消去方式及び装置 | |
| JPH0568762B2 (ru) | ||
| JP2604702B2 (ja) | 光磁気記録再生消去方式及びその装置 | |
| JPH01178104A (ja) | 光磁気ディスク用磁界印加電磁石 | |
| JPS63144401A (ja) | 光磁気デイスク用磁界印加装置 | |
| JPH069082B2 (ja) | 磁界印加装置 | |
| JP2834879B2 (ja) | 光磁気記録装置 | |
| JP2705598B2 (ja) | 光磁気記憶方法及び装置 | |
| JPH067401B2 (ja) | 光磁気ディスク用磁界印加電磁石 | |
| JPS61269204A (ja) | 磁界印加装置 | |
| JPS61184745A (ja) | 光磁気記録再生消去方法及びその装置 | |
| JPS63217504A (ja) | 光磁気デイスク用磁界印加装置 | |
| JPS61269203A (ja) | 磁界印加装置 | |
| JPH03209650A (ja) | 光磁気情報装置の磁界印加電磁石 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |