AR009662A1 - Particulas magneticas, un sustrato que comprende tales particulas, un documento de seguridad, articulo de seguridad y un metodo para detectartales particulas - Google Patents
Particulas magneticas, un sustrato que comprende tales particulas, un documento de seguridad, articulo de seguridad y un metodo para detectartales particulasInfo
- Publication number
- AR009662A1 AR009662A1 ARP970105815A ARP970105815A AR009662A1 AR 009662 A1 AR009662 A1 AR 009662A1 AR P970105815 A ARP970105815 A AR P970105815A AR P970105815 A ARP970105815 A AR P970105815A AR 009662 A1 AR009662 A1 AR 009662A1
- Authority
- AR
- Argentina
- Prior art keywords
- particles
- substrate
- security
- detectartals
- magnetic particles
- Prior art date
Links
- 239000002245 particle Substances 0.000 title abstract 4
- 239000000758 substrate Substances 0.000 title abstract 2
- 239000006249 magnetic particle Substances 0.000 title 1
- 239000000463 material Substances 0.000 abstract 3
- 230000005347 demagnetization Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/04—Testing magnetic properties of the materials thereof, e.g. by detection of magnetic imprint
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cosmetics (AREA)
- Paints Or Removers (AREA)
- Burglar Alarm Systems (AREA)
Abstract
Se refiere a un sustrato que comprende un material base y partículas alargadas en el interior de dicho material base, difiriendo las propiedadesmagnéticas de dichas partículas de las propiedades magnéticas correspondientes de dicho material base, teniendo las partículas una forma tan larga y delgadaque su factor de desmagnetizacion N es menor que 1/250, siendo su diámetro menor que 30 micrometros y su campo de saturacion magnética mayor que 100 A/m,preferentemente mayor que 300 A/m.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP96402721A EP0848356A1 (en) | 1996-12-12 | 1996-12-12 | Substrate comprising magnetic particles, security document and method for detecting them |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR009662A1 true AR009662A1 (es) | 2000-04-26 |
Family
ID=8225342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP970105815A AR009662A1 (es) | 1996-12-12 | 1997-12-11 | Particulas magneticas, un sustrato que comprende tales particulas, un documento de seguridad, articulo de seguridad y un metodo para detectartales particulas |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0848356A1 (es) |
| AR (1) | AR009662A1 (es) |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR763681A (fr) | 1933-11-10 | 1934-05-04 | Procédé de repérage des objets par modification d'un champ magnétique | |
| US3313941A (en) | 1963-11-12 | 1967-04-11 | Mortimer M Marks | Identifying apparatus employing fibers and polarized light |
| US3449585A (en) | 1966-02-15 | 1969-06-10 | Arnold Trehub | Automatic recognition system using constant intensity image bearing light beam |
| US3631442A (en) | 1968-03-22 | 1971-12-28 | Robert E Fearon | Anti-shoplifting system |
| NL7406230A (es) | 1973-05-11 | 1974-11-13 | ||
| US3990065A (en) | 1975-02-20 | 1976-11-02 | The Magnavox Company | Theft detection system |
| US4218674A (en) | 1975-09-09 | 1980-08-19 | Dasy Inter S.A. | Method and a system for verifying authenticity safe against forgery |
| DE2635795B2 (de) * | 1975-09-09 | 1980-08-21 | Dasy Inter S.A., Genf (Schweiz) | Verfahren und Vorrichtung zur EchtheitskontroHe von Identifuierungskarten u.dgl. Dokumenten |
| FR2425937A1 (fr) | 1978-05-17 | 1979-12-14 | Arjomari Prioux | Structure fibreuse contenant des fibres metalliques, son procede de preparation, et son application notamment dans l'industrie du papier |
| JPS5642217A (en) | 1979-09-14 | 1981-04-20 | Nippon Kogaku Kk <Nikon> | Diaphragm device of lens that can make close-up flash photographing |
| DE3578228D1 (de) | 1984-02-15 | 1990-07-19 | Esselte Meto Eas Int Ab | Verfahren und anordnung zur detektion eines anzeigegeraets. |
| NL8502567A (nl) | 1985-09-19 | 1987-04-16 | Bekaert Sa Nv | Werkwijze en inrichting voor het op echtheid controleren van voorwerpen en voorwerp geschikt voor het toepassen van deze werkwijze. |
| DE3880202T2 (de) | 1987-06-08 | 1993-08-05 | Esselte Meto Int Gmbh | Magnetische vorrichtungen. |
| US5602381A (en) | 1993-05-19 | 1997-02-11 | Nhk Spring Co., Ltd. | Objects to be checked for authenticity, and method and apparatus for checking whether or not objects are authentic |
| US5451759A (en) | 1993-06-24 | 1995-09-19 | Nhk Spring Co., Ltd. | Using high-permeability magnetic elements randomly scattered in the objects |
| US5601931A (en) | 1993-12-02 | 1997-02-11 | Nhk Spring Company, Ltd. | Object to be checked for authenticity and a method for manufacturing the same |
| US5672859A (en) | 1994-03-04 | 1997-09-30 | N.V. Bekaert S.A. | Reproduction apparatus with microwave detection |
-
1996
- 1996-12-12 EP EP96402721A patent/EP0848356A1/en not_active Withdrawn
-
1997
- 1997-12-11 AR ARP970105815A patent/AR009662A1/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0848356A1 (en) | 1998-06-17 |
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