JPS6334099Y2 - - Google Patents
Info
- Publication number
- JPS6334099Y2 JPS6334099Y2 JP15856481U JP15856481U JPS6334099Y2 JP S6334099 Y2 JPS6334099 Y2 JP S6334099Y2 JP 15856481 U JP15856481 U JP 15856481U JP 15856481 U JP15856481 U JP 15856481U JP S6334099 Y2 JPS6334099 Y2 JP S6334099Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- coercive force
- stripes
- stripe
- recording medium
- 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
- 238000007796 conventional method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15856481U JPS5865645U (ja) | 1981-10-24 | 1981-10-24 | 磁気記録媒体 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15856481U JPS5865645U (ja) | 1981-10-24 | 1981-10-24 | 磁気記録媒体 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5865645U JPS5865645U (ja) | 1983-05-04 |
| JPS6334099Y2 true JPS6334099Y2 (enrdf_load_stackoverflow) | 1988-09-09 |
Family
ID=29951056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15856481U Granted JPS5865645U (ja) | 1981-10-24 | 1981-10-24 | 磁気記録媒体 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5865645U (enrdf_load_stackoverflow) |
-
1981
- 1981-10-24 JP JP15856481U patent/JPS5865645U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5865645U (ja) | 1983-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5972438A (en) | Magnetic recording medium and method of manufacture of same | |
| US3873975A (en) | System and method for authenticating and interrogating a magnetic record medium | |
| DE69628764T2 (de) | Verfahren und vorrichtung zur sicheren datenspeicherung und handhabung mittels magnetischer träger | |
| DE3617319C2 (enrdf_load_stackoverflow) | ||
| US4114029A (en) | Magnetic recording | |
| US4104513A (en) | Magnetic recording | |
| JPH08202842A (ja) | 磁気カード類 | |
| JPS6334099Y2 (enrdf_load_stackoverflow) | ||
| US4197989A (en) | Magnetic recording | |
| DE2545959A1 (de) | Magnetaufzeichnung | |
| JP2626858B2 (ja) | 磁気記録媒体の製造方法 | |
| JP2687344B2 (ja) | 磁気媒体及びその確認方法 | |
| JP2966425B2 (ja) | プリペイドカードの不正使用防止方法 | |
| JPS639016A (ja) | 磁気記録媒体及びその製造法 | |
| EP0815541A1 (en) | Security system for documents with a magnetic track for recording information | |
| JPS639017A (ja) | 磁気記録媒体及びその製造方法 | |
| JP2567787B2 (ja) | 磁気記録媒体の製造方法 | |
| JPH07121864A (ja) | 磁気記録媒体とその製造方法 | |
| JPH0696444A (ja) | 磁気記録媒体の製造方法 | |
| JP2649756B2 (ja) | 磁気記録媒体およびその製造方法 | |
| JP2794214B2 (ja) | 磁気カード | |
| JPH0650053Y2 (ja) | 磁気記録媒体をもつカード | |
| JPH03281397A (ja) | 磁気記録カード及びその製造方法 | |
| JP4068762B2 (ja) | 磁気記録媒体およびその製造方法 | |
| JPS6177102A (ja) | 磁気記録媒体の真偽判定方法及び磁気記録媒体 |