EP0464474A3 - Delible magnetic ink and process for making the same - Google Patents
Delible magnetic ink and process for making the same Download PDFInfo
- Publication number
- EP0464474A3 EP0464474A3 EP19910110061 EP91110061A EP0464474A3 EP 0464474 A3 EP0464474 A3 EP 0464474A3 EP 19910110061 EP19910110061 EP 19910110061 EP 91110061 A EP91110061 A EP 91110061A EP 0464474 A3 EP0464474 A3 EP 0464474A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- delible
- making
- same
- magnetic ink
- ink
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
- H01F41/16—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates the magnetic material being applied in the form of particles, e.g. by serigraphy, to form thick magnetic films or precursors therefor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT02072590A IT1248972B (it) | 1990-06-22 | 1990-06-22 | Inchiostro magnetico delebile particolarmente per contrassegnare documenti e simili |
IT2072590 | 1990-06-22 | ||
ITMI911494 | 1991-05-31 | ||
ITMI911494A IT1250424B (it) | 1991-05-31 | 1991-05-31 | Inchiostro magnetico delebile particolarmente per contrassegnare documenti e simili. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0464474A2 EP0464474A2 (de) | 1992-01-08 |
EP0464474A3 true EP0464474A3 (en) | 1993-04-21 |
Family
ID=26327633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19910110061 Withdrawn EP0464474A3 (en) | 1990-06-22 | 1991-06-19 | Delible magnetic ink and process for making the same |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0464474A3 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5792380A (en) * | 1997-04-30 | 1998-08-11 | Eastman Kodak Company | Ink jet printing ink composition with detectable label material |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB748763A (en) * | 1951-07-17 | 1956-05-09 | Burroughs Corp | Improvements in or relating to magnetic ink |
GB857820A (en) * | 1958-10-14 | 1961-01-04 | Dick Co Ab | Improvements in or relating to printing ink |
US3072577A (en) * | 1958-12-19 | 1963-01-08 | Ibm | Moisture set magnetic inks |
FR2314235A1 (fr) * | 1975-06-12 | 1977-01-07 | Ibm | Encres magnetiques et leur procede de fabrication |
WO1983003426A1 (en) * | 1982-03-29 | 1983-10-13 | SCHRÖDER, Ulf | Magnetic carbohydrate particles as carriers for affinity separation purposes, e.g. cell separation |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56105338A (en) * | 1980-01-25 | 1981-08-21 | Tokyo Jiki Insatsu Kk | Magnetic card having forgery preventing function |
-
1991
- 1991-06-19 EP EP19910110061 patent/EP0464474A3/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB748763A (en) * | 1951-07-17 | 1956-05-09 | Burroughs Corp | Improvements in or relating to magnetic ink |
GB857820A (en) * | 1958-10-14 | 1961-01-04 | Dick Co Ab | Improvements in or relating to printing ink |
US3072577A (en) * | 1958-12-19 | 1963-01-08 | Ibm | Moisture set magnetic inks |
FR2314235A1 (fr) * | 1975-06-12 | 1977-01-07 | Ibm | Encres magnetiques et leur procede de fabrication |
WO1983003426A1 (en) * | 1982-03-29 | 1983-10-13 | SCHRÖDER, Ulf | Magnetic carbohydrate particles as carriers for affinity separation purposes, e.g. cell separation |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 5, no. 175 (P-88)(847) 11 November 1981 & JP-56 105 338 ( TOKYO JIKI INSATSU K.K. ) 21 August 1981 * |
Also Published As
Publication number | Publication date |
---|---|
EP0464474A2 (de) | 1992-01-08 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 19931217 |
|
17Q | First examination report despatched |
Effective date: 19950412 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19960311 |