AU620198B2 - Magnetic materials for security applications - Google Patents

Magnetic materials for security applications Download PDF

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Publication number
AU620198B2
AU620198B2 AU48248/90A AU4824890A AU620198B2 AU 620198 B2 AU620198 B2 AU 620198B2 AU 48248/90 A AU48248/90 A AU 48248/90A AU 4824890 A AU4824890 A AU 4824890A AU 620198 B2 AU620198 B2 AU 620198B2
Authority
AU
Australia
Prior art keywords
marker
tag
magnetic
active
deactivating
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.)
Ceased
Application number
AU48248/90A
Other languages
English (en)
Other versions
AU4824890A (en
Inventor
Dafydd Geraint Davies
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meto International GmbH
Original Assignee
Scientific Generics Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10649786&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU620198(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Scientific Generics Ltd filed Critical Scientific Generics Ltd
Publication of AU4824890A publication Critical patent/AU4824890A/en
Application granted granted Critical
Publication of AU620198B2 publication Critical patent/AU620198B2/en
Assigned to ESSELTE METO INTERNATIONAL PRODUKTIONS GMBH reassignment ESSELTE METO INTERNATIONAL PRODUKTIONS GMBH Alteration of Name(s) in Register under S187 Assignors: SCIENTIFIC GENERICS LIMITED
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2408—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using ferromagnetic tags
    • G08B13/2411—Tag deactivation
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2414—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using inductive tags
    • G08B13/2417—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using inductive tags having a radio frequency identification chip
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered tags
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered tags
    • G08B13/2442—Tag materials and material properties thereof, e.g. magnetic material details
    • 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
    • H01F41/24—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 from liquids
    • H01F41/26—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 from liquids using electric currents, e.g. electroplating

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Soft Magnetic Materials (AREA)
  • Paints Or Removers (AREA)
  • Hard Magnetic Materials (AREA)
  • Burglar Alarm Systems (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Magnetic Treatment Devices (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Road Signs Or Road Markings (AREA)
  • Guiding Agricultural Machines (AREA)
  • Valve Device For Special Equipments (AREA)
AU48248/90A 1989-01-09 1990-01-09 Magnetic materials for security applications Ceased AU620198B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8900398 1989-01-09
GB898900398A GB8900398D0 (en) 1989-01-09 1989-01-09 Magnetic materials

Publications (2)

Publication Number Publication Date
AU4824890A AU4824890A (en) 1990-08-01
AU620198B2 true AU620198B2 (en) 1992-02-13

Family

ID=10649786

Family Applications (1)

Application Number Title Priority Date Filing Date
AU48248/90A Ceased AU620198B2 (en) 1989-01-09 1990-01-09 Magnetic materials for security applications

Country Status (11)

Country Link
EP (1) EP0412137B1 (de)
JP (1) JP2582942B2 (de)
AT (1) ATE105649T1 (de)
AU (1) AU620198B2 (de)
BR (1) BR9004571A (de)
CA (1) CA2024608C (de)
DE (1) DE69008789T2 (de)
DK (1) DK0412137T3 (de)
GB (1) GB8900398D0 (de)
NO (1) NO903875L (de)
WO (1) WO1990007784A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU637418B2 (en) * 1989-10-31 1993-05-27 Checkpoint Systems, Inc. Method for tagging articles used in conjunction with an electronic article surveillance system, and tags or labels useful in connection therewith

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU669014B2 (en) * 1992-12-23 1996-05-23 Minnesota Mining And Manufacturing Company Dual status thin-film EAS marker
US5580664A (en) * 1992-12-23 1996-12-03 Minnesota Mining And Manufacturing Company Dual status thin-film eas marker having multiple magnetic layers
US5401584A (en) * 1993-09-10 1995-03-28 Knogo Corporation Surveillance marker and method of making same
US5405702A (en) * 1993-12-30 1995-04-11 Minnesota Mining And Manufacturing Company Method for manufacturing a thin-film EAS and marker
US5847650A (en) * 1996-10-04 1998-12-08 Knogo North America Inc. Theft resistant circuit assembly
DE19834367A1 (de) 1998-07-30 2000-02-03 Meto International Gmbh Bandmaterial, Sicherungselement und Verfahren zur Herstellung eines Sicherungselements für die elektronische Artikelsicherung
GB2394725A (en) * 2002-10-04 2004-05-05 Qinetiq Ltd Method of forming a magnetic information tag by electroless deposition

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295028B1 (de) * 1987-06-08 1993-04-14 Esselte Meto International GmbH Magnetische Vorrichtungen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4484184A (en) * 1979-04-23 1984-11-20 Allied Corporation Amorphous antipilferage marker
NL8102148A (nl) * 1981-05-01 1982-12-01 Philips Nv Magnetisch overdrachtselement alsmede magnetisch permeabel onderdeel voor een magnetisch overdrachtselement.
US4661216A (en) * 1986-04-21 1987-04-28 International Business Machines Corporation Electrodepositing CoNiFe alloys for thin film heads
US4808279A (en) * 1986-10-02 1989-02-28 The University Of Toronto Innovations Foundation Process for preparing magnetic recording material
GB8713353D0 (en) * 1987-06-08 1987-07-15 Scient Generics Ltd Magnetic article surveillance systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295028B1 (de) * 1987-06-08 1993-04-14 Esselte Meto International GmbH Magnetische Vorrichtungen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU637418B2 (en) * 1989-10-31 1993-05-27 Checkpoint Systems, Inc. Method for tagging articles used in conjunction with an electronic article surveillance system, and tags or labels useful in connection therewith

Also Published As

Publication number Publication date
BR9004571A (pt) 1991-07-30
CA2024608A1 (en) 1990-07-10
JP2582942B2 (ja) 1997-02-19
DE69008789T2 (de) 1994-11-24
EP0412137B1 (de) 1994-05-11
CA2024608C (en) 1997-08-19
DE69008789D1 (de) 1994-06-16
AU4824890A (en) 1990-08-01
DK0412137T3 (da) 1994-06-06
GB8900398D0 (en) 1989-03-08
EP0412137A1 (de) 1991-02-13
NO903875D0 (no) 1990-09-05
ATE105649T1 (de) 1994-05-15
NO903875L (no) 1990-09-05
JPH03504183A (ja) 1991-09-12
WO1990007784A1 (en) 1990-07-12

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