CA2319237A1 - Magnetic markers or tags - Google Patents
Magnetic markers or tags Download PDFInfo
- Publication number
- CA2319237A1 CA2319237A1 CA002319237A CA2319237A CA2319237A1 CA 2319237 A1 CA2319237 A1 CA 2319237A1 CA 002319237 A CA002319237 A CA 002319237A CA 2319237 A CA2319237 A CA 2319237A CA 2319237 A1 CA2319237 A1 CA 2319237A1
- Authority
- CA
- Canada
- Prior art keywords
- tags
- magnetic markers
- magnetisation
- active regions
- magnetically active
- 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
- 238000003491 array Methods 0.000 abstract 1
- 239000003550 marker Substances 0.000 abstract 1
- 239000000289 melt material Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
Landscapes
- Geophysics And Detection Of Objects (AREA)
- Burglar Alarm Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Near-Field Transmission Systems (AREA)
- Thin Magnetic Films (AREA)
Abstract
A magnetic marker or tag which is characterised by a substrate carrying a plurality of discrete magnetically active regions disposed in one or more linear arrays, the magnetically active regions being formed of a thin film or spin-melt material having a preferential axis of magnetisation, and the preferential axes of magnetisation being aligned within the (or each) linear aray.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9506909.2A GB9506909D0 (en) | 1995-04-04 | 1995-04-04 | Spatial magnetic interrogation system |
GB9506909.2 | 1995-04-04 | ||
CA002217762A CA2217762C (en) | 1995-04-04 | 1996-04-03 | Spatial magnetic interrogation |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002217762A Division CA2217762C (en) | 1995-04-04 | 1996-04-03 | Spatial magnetic interrogation |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2319237A1 true CA2319237A1 (en) | 1996-10-10 |
CA2319237C CA2319237C (en) | 2005-10-11 |
Family
ID=25679703
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002319238A Expired - Fee Related CA2319238C (en) | 1995-04-04 | 1996-04-03 | Magnetic coding of articles |
CA002320669A Expired - Fee Related CA2320669C (en) | 1995-04-04 | 1996-04-03 | Device for reading magnetic tags |
CA002319237A Expired - Fee Related CA2319237C (en) | 1995-04-04 | 1996-04-03 | Magnetic markers or tags |
CA002320670A Expired - Fee Related CA2320670C (en) | 1995-04-04 | 1996-04-03 | Apparatus for interrogating magnetic tags |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002319238A Expired - Fee Related CA2319238C (en) | 1995-04-04 | 1996-04-03 | Magnetic coding of articles |
CA002320669A Expired - Fee Related CA2320669C (en) | 1995-04-04 | 1996-04-03 | Device for reading magnetic tags |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002320670A Expired - Fee Related CA2320670C (en) | 1995-04-04 | 1996-04-03 | Apparatus for interrogating magnetic tags |
Country Status (1)
Country | Link |
---|---|
CA (4) | CA2319238C (en) |
-
1996
- 1996-04-03 CA CA002319238A patent/CA2319238C/en not_active Expired - Fee Related
- 1996-04-03 CA CA002320669A patent/CA2320669C/en not_active Expired - Fee Related
- 1996-04-03 CA CA002319237A patent/CA2319237C/en not_active Expired - Fee Related
- 1996-04-03 CA CA002320670A patent/CA2320670C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2320669A1 (en) | 1996-10-10 |
CA2319237C (en) | 2005-10-11 |
CA2319238C (en) | 2005-06-07 |
CA2320670A1 (en) | 1996-10-10 |
CA2320670C (en) | 2005-01-04 |
CA2319238A1 (en) | 1996-10-10 |
CA2320669C (en) | 2005-10-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |