JPS6318030Y2 - - Google Patents
Info
- Publication number
- JPS6318030Y2 JPS6318030Y2 JP15399681U JP15399681U JPS6318030Y2 JP S6318030 Y2 JPS6318030 Y2 JP S6318030Y2 JP 15399681 U JP15399681 U JP 15399681U JP 15399681 U JP15399681 U JP 15399681U JP S6318030 Y2 JPS6318030 Y2 JP S6318030Y2
- Authority
- JP
- Japan
- Prior art keywords
- pattern
- line
- line group
- password
- copying machine
- 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
- 238000010586 diagram Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Inspection Of Paper Currency And Valuable Securities (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15399681U JPS5859038U (ja) | 1981-10-16 | 1981-10-16 | 偽造防止策を施した画像形成体 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15399681U JPS5859038U (ja) | 1981-10-16 | 1981-10-16 | 偽造防止策を施した画像形成体 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5859038U JPS5859038U (ja) | 1983-04-21 |
JPS6318030Y2 true JPS6318030Y2 (pt) | 1988-05-20 |
Family
ID=29946597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15399681U Granted JPS5859038U (ja) | 1981-10-16 | 1981-10-16 | 偽造防止策を施した画像形成体 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5859038U (pt) |
-
1981
- 1981-10-16 JP JP15399681U patent/JPS5859038U/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5859038U (ja) | 1983-04-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4668597A (en) | Dormant tone imaging | |
US5722693A (en) | Embossed document protection methods and products | |
US5788285A (en) | Document protection methods and products | |
US4582346A (en) | Document security system | |
US5735547A (en) | Anti-photographic/photocopy imaging process and product made by same | |
US4265469A (en) | Protected document and method of making same | |
US4341404A (en) | Security document using a variable dot screen | |
US4310180A (en) | Protected document and method of making same | |
MXPA97004348A (es) | Metodos de proteccion de documentos y productos | |
WO2000025276A1 (en) | Security document including subtle image and system and method for viewing the same | |
US4780397A (en) | Process for preparing film positive sheets for forging-by-copying-proof prints and prints therefrom | |
JP2695523B2 (ja) | 複写防止に適する印刷物 | |
JPH0414220Y2 (pt) | ||
JP3030534U (ja) | 微小文字を有する印刷物 | |
EP0513195A4 (en) | Anti-photographic/photocopy imaging process and product made by same | |
JPS6318030Y2 (pt) | ||
JP3495822B2 (ja) | 複写防止印刷物 | |
JP3529084B2 (ja) | 凹版潜像及び該潜像の作成方法 | |
JP2827786B2 (ja) | 複写による偽造防止策を施した画像形成体 | |
JPS5923023Y2 (ja) | 複写による偽造の防止策を施した印刷物 | |
AU2004321079A1 (en) | Full color scanning protection of document | |
JP2000203147A (ja) | 偽造防止印刷物とその作製方法 | |
JPH0414221Y2 (pt) | ||
JP2021011098A (ja) | 複写防止用紙及びその製造方法 | |
JPH10278408A (ja) | 複写防止印刷物 |