EP0882599A1 - Dessin de sécurité pour papiers-valeurs - Google Patents
Dessin de sécurité pour papiers-valeurs Download PDFInfo
- Publication number
- EP0882599A1 EP0882599A1 EP98810504A EP98810504A EP0882599A1 EP 0882599 A1 EP0882599 A1 EP 0882599A1 EP 98810504 A EP98810504 A EP 98810504A EP 98810504 A EP98810504 A EP 98810504A EP 0882599 A1 EP0882599 A1 EP 0882599A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- region
- lines
- pattern
- security
- color
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims description 17
- 239000003086 colorant Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 208000003580 polydactyly Diseases 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/04—Preventing copies being made of an original
- G03G21/043—Preventing copies being made of an original by using an original which is not reproducible or only reproducible with a different appearence, e.g. originals with a photochromic layer or a colour background
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
- B41M3/146—Security printing using a non human-readable pattern which becomes visible on reproduction, e.g. a void mark
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/45—Associating two or more layers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S283/00—Printed matter
- Y10S283/901—Concealed data
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S283/00—Printed matter
- Y10S283/902—Anti-photocopy
Definitions
- the present invention relates to a safety design for securities, in particular banknotes, a security paper with such a security drawing and a method of printing such a security drawing on value paper.
- the object of the present invention is to improve the known security drawings, and more particularly of make a safety drawing with a pattern in a latent color invisible or almost invisible to the naked eye on real value paper, this latent color pattern clearly revealed on a color photocopy of the said value paper, also on photocopies made using photocopiers from the last generation.
- the principle of the invention is based on the fact that, on the one hand, the background of the drawing is made up of two regions with straight lines and curved lines, both regions with different color density and the lowest color density region forming a pattern.
- the safety drawing also includes a overprint corresponding to the pattern and which is printed overlay on said density region lower in color to a selected color of so as to compensate for the difference in color density between the two regions, thus forming a pattern in latent color or a latent color image, of so that the safety pattern appears as uniform and without pattern with the naked eye, but that the pattern stands out clearly and in a different color than that of the highest color density region in a photocopy of the safety drawing.
- the latent pattern or design is preferably a letter or sign, such as "X”, or still a set of letters forming a word such as "VOID” or "COPY”. It can also include one or multiple digits, or even any pattern.
- Independent claim 12 defines a security with a safety drawing according to the present invention.
- the use of such drawings of security is of course not limited to only securities and banknotes. Indeed, this safety drawing can also be used on cards, such as credit cards or other, checks or stamps. In fact, we may use this design on any printed medium of which we wish to avoid falsification by such means than the photocopy.
- Independent claim 13 defines a method of production of a security paper with a drawing of security according to the present invention.
- Dependent claims 14 and 15 define particular printing processes used for production of a security paper with a drawing of security according to the present invention.
- Figure 1 shows a known safety drawing according to the prior art.
- FIG. 2 represents an example according to the invention, in black and white, from the bottom of a security drawing and a latent motif or design in the form of a cross, the background and latent drawing being shown separately.
- Figure 3 shows an enlargement of different geometric patterns of the background.
- Figure 4 shows a color photograph of a safety design with an "X" pattern according to the invention.
- Figure 5 shows a color photocopy of the photograph of figure 4.
- FIG 1 an art security element according to patent application EP 0 384 897 is represented.
- the three designs of three colors have already been stacked into a set 1 of parallel and dense lines giving an impression of uniform background.
- Safety drawing has areas 2, 3, 4 in which the parallel lines are oriented in a direction other than the direction general of the bottom lines, these areas having the form of letters, the letters making up the word "VOID".
- the figure being an enlargement of the safety drawing and already a copy of it, the words are easily recognizable on it. If we consider the actual size of such safety drawings, then these words are much more difficult to discern on a original drawing. On the other hand, all the lines are straight lines or line segments.
- FIG. 2 the bottom 10 of a safety drawing according to the invention is shown with separate next to it, an overprint 20 in the shape of a cross, this overprint 20 being intended to be printed on the background 10.
- the nuances of colors are obviously difficult to render with photocopies, but this example is given by way of illustration.
- the background 10 of the security drawing is divided into regions having triangular geometric areas 11 placed next to each other, alternately.
- the first type of zones 11 has only parallel lines.
- zones 11a with lines oriented angularly according to a first direction there are zones 11b with oriented straight lines angularly in a second direction and zones 11c with straight lines oriented angularly according to a third direction.
- the bottom also includes a second type of zones 12 having lines spiral curves and a third type of zones 13 comprising a mixture of line segments angularly oriented parallels and segments of spiral lines.
- Printing lines and spirals is made so that they form a pattern corresponding to the overprint 20 intended for be printed as an overlay, in the example described a "X".
- the overprint 20 of this embodiment has the form an "X" also comprising parallel lines oriented in a given angular direction, by example 45 °.
- an overlay of straight lines and curves will therefore occur actually as well as a color overlay compensating for differences in color density.
- the angles of orientation of the parallel lines of the background and overprint can have any value, the important thing being that the background has at least lines oriented in two different directions, and the overlay of lines oriented in one direction different from the other two.
- the lines parallels from the bottom are oriented at about 22.5 ° and 67.5 ° and those of the overlay are oriented about 45 °.
- the angle chosen is preferably about 112.5 °.
- the width of the lines printed in parallel, spiral lines and lines of the overlay is also variable. It can vary between around 15 ⁇ m and 100 ⁇ m.
- the lines printed in have a width of approximately 82.55 ⁇ m and the curved lines a width of about 41.275 ⁇ m.
- the lines of the overlay have preferably a width of about 41.275 ⁇ m. These values have an approximate tolerance of +/- 20%.
- the distance between each printed line measured between the center of two adjacent lines, which we calls the pitch, can vary between around 100 ⁇ m and 800 ⁇ m. The value chosen depends on the uniformity that we want to get for the background and for the overprint. Preferably, this distance is worth around 349.25 ⁇ m for the parallel bottom lines, approximately 247.65 ⁇ m for overprinting and approximately 250 ⁇ m for curved lines. These values have a approximate tolerance of +/- 20%.
- the color density of the overlay intended for to be printed as an overlay is worth approximately 0.010 to 0.300.
- the background areas containing the lines can have any geometric shape, for example a triangular, hexagonal, rectangular shape, circular etc.
- Figure 4 shows a color photograph of a safety drawing according to the invention with the motif in "X" shape printed on top of a background.
- the bottom of this safety drawing corresponds to bottom 10 of embodiment described with reference to FIG. 2, with alternating triangular areas whose lines are oriented in three different directions and the pattern corresponds to the overprint 20 described in reference to figure 2.
- the latent color pattern is difficult to distinguish from background, which has a uniform appearance At first glance.
- Safety drawings according to the invention are produced by conventional printing methods such as: Offset dry or wet, intaglio or a combination of these.
- Offset dry or wet, intaglio or a combination of these.
- at least two plates are required, one for the background and the other for the overprint. These plates may of course contain other patterns in addition and they are mounted on a plate cylinder Offset.
- the drawings are then transferred to a blanket cylinder which then transfers them on the paper itself.
- Multi-color offset are described in EP B 0 092 887 and EP B 0 132 858, for example.
- geometric zones are possible, for example a hexagonal, circular shape or a any other form.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Printing Methods (AREA)
- Credit Cards Or The Like (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
- impression avec une première plaque d'impression d'un fond composé d'au moins une première région et une deuxième région juxtaposées, lesdites régions comportant des dessins géométriques propres à chaque région, de manière que la première région ait une densité de couleur plus forte que celle de la deuxième région, la deuxième région formant un motif,
- impression avec une deuxième plaque d'impression d'une surimpression correspondant au motif formé par la deuxième région en superposition sur ladite deuxième région en une couleur choisie de manière à compenser la différence de densité entre les deux régions, de sorte que le dessin de sécurité apparaít comme uniforme et sans motif à l'oeil nu, mais que ledit motif ressort clairement et dans une autre couleur que la première région lors d'une photocopie du dessin de sécurité.
Claims (15)
- Dessin de sécurité pour papiers-valeurs, notamment des billets de banque, ayant un fond (10) composé d'au moins une première région et une deuxième région juxtaposées, caractérisé en ce que lesdites régions comportent des dessins géométriques propres à chaque région de manière que la première région ait une densité de couleur plus forte que celle de la deuxième région, ladite deuxième région formant un motif, et en ce que sur ladite deuxième région est superposée une surimpression (20) correspondant audit motif, ladite surimpression (20) comportant des dessins géométriques différents de ceux de ladite deuxième région et en une couleur choisie de manière à compenser la différence de densité de couleur entre lesdites régions, de sorte que le dessin de sécurité apparaít comme uniforme et sans motif à l'oeil nu, mais que ledit motif ressort clairement et dans une autre couleur que la première région lors d'une photocopie du dessin de sécurité.
- Dessin de sécurité selon la revendication 1, caractérisé en ce que la région de densité de couleur la plus forte comporte des groupes de lignes (lla,llb) imprimées en parallèle et orientées angulairement selon au moins deux directions différentes, et l'autre région comporte des lignes courbes (12) ou des lignes droites, et en ce que la surimpression (20) comprend des lignes droites ou courbes de manière que les lignes de la surimpression croisent les lignes de ladite région de densité de couleur la plus faible lors de la superposition.
- Dessin de sécurité selon la revendication 2, caractérisé en ce que lesdits groupes de lignes et lesdites lignes courbes ou droites sont arrangés dans des zones géométriques fermées (11).
- Dessin de sécurité selon l'une des revendication 2 ou 3, caractérisé en ce que les lignes courbes de la région de densité de couleur la plus faible sont des spirales et les lignes de la surimpression (20) sont des droites.
- Dessin de sécurité selon l'une des revendications 2 à 4, caractérisé en ce que l'angle des lignes orientées (11a,11b) selon une première direction vaut environ 22,5°, selon une deuxième direction vaut environ 67,5°, et l'angle des lignes de la surimpression (20) vaut environ 45°, ces valeurs ayant une tolérance de +/- 20%.
- Dessin de sécurité selon l'une des revendication 2 à 5, caractérisé en ce qu'il comporte des zones (11c) ayant des lignes parallèles orientées selon une troisième direction et en ce que l'angle selon la troisième direction vaut environ 112,5°, avec une tolérance de +/- 20%.
- Dessin de sécurité selon l'une des revendications 2 à 6, caractérisé en ce que l'épaisseur des lignes droites vaut environ 90 µm et la distance entre les différentes lignes d'une même zone prise entre le centre de chaque ligne vaut environ 350 µm, avec une tolérance de +/- 20%.
- Dessin de sécurité selon l'une des revendication 2 à 7, caractérisé en ce que l'épaisseur des lignes courbes vaut environ 41 µm et en ce que la distance entre chaque ligne courbe prise entre le centre de chaque ligne vaut environ 250 µm, avec une tolérance de +/- 20%.
- Dessin de sécurité selon l'une des revendications 1 à 8, caractérisé en ce que la densité de la couleur de la surimpression (20) vaut environ 0,010 à 0,300.
- Dessin de sécurité selon l'une des revendications 3 à 9, caractérisé en ce que lesdites zones (11) ont une forme triangulaire, ou rectangulaire, ou hexagonale, ou circulaire ou autre.
- Dessin de sécurité selon l'une des revendications 1 à 10, caractérisé en ce que lesdits dessins géométriques sont de couleurs différentes et ladite surimpression (20) est composée de plusieurs couleurs.
- Papier-valeur caractérisé en ce qu'il comprend sur au moins l'une de ses faces un dessin de sécurité selon l'une des revendications 1 à 11.
- Procédé d'impression d'un dessin de sécurité sur des papiers-valeurs, notamment des billets de banque, caractérisé par les étapes suivantes:impression avec une première plaque d'impression d'un fond composé d'au moins une première région et une deuxième région juxtaposées, lesdites régions comportant des dessins géométriques propres à chaque région, de manière que la première région ait une densité de couleur plus forte que celle de la deuxième région, la deuxième région formant un motif,impression avec une deuxième plaque d'impression d'une surimpression correspondant au motif formé par la deuxième région en superposition sur ladite deuxième région en une couleur choisie de manière à compenser la différence de densité entre les deux régions, de sorte que le dessin de sécurité apparaít comme uniforme et sans motif à l'oeil nu, mais que ledit motif ressort clairement et dans une autre couleur que la première région lors d'une photocopie du dessin de sécurité.
- Procédé selon la revendication 13, caractérisé en ce que l'on utilise autant de plaques d'impression qu'il y a de couleurs différentes.
- Procédé selon la revendication 14, caractérisé en ce que le procédé d'impression utilisé est un procédé Offset ou un procédé taille-douce.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1381/97 | 1997-06-06 | ||
CH138197 | 1997-06-06 | ||
CH138197 | 2011-09-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0882599A1 true EP0882599A1 (fr) | 1998-12-09 |
EP0882599B1 EP0882599B1 (fr) | 2002-03-13 |
Family
ID=4209107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98810504A Expired - Lifetime EP0882599B1 (fr) | 1997-06-06 | 1998-06-02 | Dessin de sécurité pour papiers-valeurs |
Country Status (12)
Country | Link |
---|---|
US (1) | US6050606A (fr) |
EP (1) | EP0882599B1 (fr) |
JP (1) | JP4260926B2 (fr) |
KR (1) | KR100474523B1 (fr) |
CN (1) | CN1101756C (fr) |
AT (1) | ATE214337T1 (fr) |
AU (1) | AU729627B2 (fr) |
CA (1) | CA2239578C (fr) |
DE (1) | DE69804157T2 (fr) |
PL (1) | PL189595B1 (fr) |
RU (1) | RU2199446C2 (fr) |
UA (1) | UA61063C2 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000045344A1 (fr) * | 1999-01-26 | 2000-08-03 | The Governor And Company Of The Bank Of England | Substrats pour impression |
EP2183118A1 (fr) * | 2007-08-16 | 2010-05-12 | Document Security Systems, Inc. | Moirages monochromes pour une protection de copie |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6320675B1 (en) * | 1997-07-15 | 2001-11-20 | Canon Kabushiki Kaisha | Image processing apparatus and method and storage medium |
DE10015097A1 (de) * | 2000-03-28 | 2001-10-04 | Giesecke & Devrient Gmbh | Im Stichtiefdruck bedruckter Datenträger |
US6538757B1 (en) | 2000-05-19 | 2003-03-25 | Pitney Bowes Inc. | Method for automatically reading electronic tickets |
JP3718712B2 (ja) * | 2001-08-06 | 2005-11-24 | 独立行政法人 国立印刷局 | 真偽判別可能な印刷物及びその作製方法 |
CA2399356C (fr) * | 2001-09-07 | 2012-01-24 | Kba-Giori S.A. | Element de controle pour articles imprimes |
ATE364512T1 (de) * | 2001-09-07 | 2007-07-15 | Kba Giori Sa | Bedienelement für bedruckte gegenstände |
WO2004033229A2 (fr) * | 2002-10-10 | 2004-04-22 | Document Security Systems, Inc. | Document contenant des images de securite |
US20070029394A1 (en) * | 2005-08-01 | 2007-02-08 | Wicker David M | Covert document system |
EP1447234A1 (fr) | 2003-02-13 | 2004-08-18 | Kba-Giori S.A. | Procédé d'impression d'un élément de securité et élément de sécurité |
EP1447235A1 (fr) * | 2003-02-13 | 2004-08-18 | Kba-Giori S.A. | Elément de sécurité et procédé d'impression |
DE602004005448T2 (de) * | 2003-05-29 | 2007-11-29 | Document Security Systems, Inc. | Sicherheitsbilder enthaltendes dokument |
CA2530413C (fr) | 2003-06-30 | 2012-06-19 | Kba-Giori S.A. | Machine d'impression |
KR100744035B1 (ko) | 2006-03-21 | 2007-07-30 | 한국조폐공사 | 중첩 패턴을 이용한 위조방지 요소 및 그 제조방법 |
WO2007127862A2 (fr) * | 2006-04-26 | 2007-11-08 | Document Security Systems, Inc. | fonctionnalité de sécurité intégrée à couleur opaque |
EP2020303B1 (fr) * | 2007-07-26 | 2010-11-10 | Kabushiki Kaisha Toshiba | Procédé de formation d'image et support d'authentification personnelle l'utilisant |
JP5062645B2 (ja) * | 2009-07-31 | 2012-10-31 | 独立行政法人 国立印刷局 | 潜像模様形成体 |
RU2527791C1 (ru) * | 2013-07-18 | 2014-09-10 | Федеральное государственное унитарное предприятие "Гознак" (ФГУП Гознак") | Многослойная защищенная композиция (варианты) и изделие из такой композиции |
CN103895374B (zh) * | 2013-11-01 | 2016-09-14 | 中钞油墨有限公司 | 具有光变结构的防伪图纹及其制备方法 |
KR101655443B1 (ko) | 2015-04-13 | 2016-09-09 | 한국에스케이에프씰 주식회사 | 자기 엔코더용 조합형 착자기 |
CN108538187B (zh) * | 2018-04-16 | 2021-06-01 | 上海印钞有限公司 | 一种组合荧光图案及其应用 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0551205A1 (fr) * | 1992-01-08 | 1993-07-14 | Moore Business Forms, Inc. | Documents de sécurité |
EP0614133A2 (fr) * | 1993-03-01 | 1994-09-07 | The Standard Register Company | Document de sécurité à tons variables |
Family Cites Families (10)
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NL267828A (fr) * | 1960-08-04 | |||
FR2289992A1 (fr) * | 1974-10-31 | 1976-05-28 | Opi Metriservice Sa | Procede de coloration de surface |
US4310180A (en) * | 1977-05-18 | 1982-01-12 | Burroughs Corporation | Protected document and method of making same |
US4227719A (en) * | 1978-09-20 | 1980-10-14 | Burroughs Corporation | Protection system for documents |
US4227720A (en) * | 1978-11-08 | 1980-10-14 | Burroughs Corporation | Protected document |
JPS6381076A (ja) * | 1986-09-25 | 1988-04-11 | Ricoh Co Ltd | 高精度コピ−ができない有価証券の印刷方法 |
US5487567A (en) * | 1992-04-24 | 1996-01-30 | Francois-Charles Oberthur Group | Printing method and copy-evident secure document |
JP2600094B2 (ja) * | 1992-06-04 | 1997-04-16 | 大蔵省印刷局長 | 偽造防止用潜像印刷物及びその印刷方法 |
US5853197A (en) * | 1996-03-05 | 1998-12-29 | The Standard Register Company | Security document |
GB9718958D0 (en) * | 1997-09-08 | 1997-11-12 | House Of Questa The Limited | Improvements relating to security printing |
-
1997
- 1997-09-29 PL PL97322352A patent/PL189595B1/pl not_active IP Right Cessation
-
1998
- 1998-06-02 DE DE69804157T patent/DE69804157T2/de not_active Expired - Lifetime
- 1998-06-02 EP EP98810504A patent/EP0882599B1/fr not_active Expired - Lifetime
- 1998-06-02 AU AU69870/98A patent/AU729627B2/en not_active Ceased
- 1998-06-02 AT AT98810504T patent/ATE214337T1/de not_active IP Right Cessation
- 1998-06-03 US US09/090,079 patent/US6050606A/en not_active Expired - Fee Related
- 1998-06-03 KR KR10-1998-0020477A patent/KR100474523B1/ko not_active IP Right Cessation
- 1998-06-03 CA CA002239578A patent/CA2239578C/fr not_active Expired - Fee Related
- 1998-06-04 UA UA98062920A patent/UA61063C2/uk unknown
- 1998-06-05 CN CN98109659A patent/CN1101756C/zh not_active Expired - Fee Related
- 1998-06-05 RU RU98110821/12A patent/RU2199446C2/ru not_active IP Right Cessation
- 1998-06-08 JP JP17385698A patent/JP4260926B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0551205A1 (fr) * | 1992-01-08 | 1993-07-14 | Moore Business Forms, Inc. | Documents de sécurité |
EP0614133A2 (fr) * | 1993-03-01 | 1994-09-07 | The Standard Register Company | Document de sécurité à tons variables |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000045344A1 (fr) * | 1999-01-26 | 2000-08-03 | The Governor And Company Of The Bank Of England | Substrats pour impression |
US8444181B2 (en) | 2002-10-10 | 2013-05-21 | Document Security Systems, Inc. | Single-color screen patterns for copy protection |
EP2183118A1 (fr) * | 2007-08-16 | 2010-05-12 | Document Security Systems, Inc. | Moirages monochromes pour une protection de copie |
EP2183118A4 (fr) * | 2007-08-16 | 2010-10-06 | Document Security Systems Inc | Moirages monochromes pour une protection de copie |
Also Published As
Publication number | Publication date |
---|---|
JPH11227315A (ja) | 1999-08-24 |
KR100474523B1 (ko) | 2005-07-12 |
DE69804157T2 (de) | 2002-09-05 |
JP4260926B2 (ja) | 2009-04-30 |
AU729627B2 (en) | 2001-02-08 |
RU2199446C2 (ru) | 2003-02-27 |
ATE214337T1 (de) | 2002-03-15 |
PL322352A1 (en) | 1998-12-07 |
CA2239578C (fr) | 2007-05-15 |
UA61063C2 (uk) | 2003-11-17 |
CN1205276A (zh) | 1999-01-20 |
DE69804157D1 (de) | 2002-04-18 |
EP0882599B1 (fr) | 2002-03-13 |
CN1101756C (zh) | 2003-02-19 |
PL189595B1 (pl) | 2005-08-31 |
US6050606A (en) | 2000-04-18 |
KR19990006600A (ko) | 1999-01-25 |
AU6987098A (en) | 1998-12-10 |
CA2239578A1 (fr) | 1998-12-06 |
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