GB8900398D0 - Magnetic materials - Google Patents

Magnetic materials

Info

Publication number
GB8900398D0
GB8900398D0 GB898900398A GB8900398A GB8900398D0 GB 8900398 D0 GB8900398 D0 GB 8900398D0 GB 898900398 A GB898900398 A GB 898900398A GB 8900398 A GB8900398 A GB 8900398A GB 8900398 D0 GB8900398 D0 GB 8900398D0
Authority
GB
United Kingdom
Prior art keywords
active
magnetic
deactivating
tag
marker
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.)
Pending
Application number
GB898900398A
Other languages
English (en)
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.)
Scientific Generics Ltd
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=GB8900398(D0) "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
Priority to GB898900398A priority Critical patent/GB8900398D0/en
Publication of GB8900398D0 publication Critical patent/GB8900398D0/en
Priority to AT9090901612T priority patent/ATE105649T1/de
Priority to AU48248/90A priority patent/AU620198B2/en
Priority to PCT/GB1990/000024 priority patent/WO1990007784A1/en
Priority to DK90901612.3T priority patent/DK0412137T3/da
Priority to BR909004571A priority patent/BR9004571A/pt
Priority to DE69008789T priority patent/DE69008789T2/de
Priority to EP90901612A priority patent/EP0412137B1/de
Priority to JP2501785A priority patent/JP2582942B2/ja
Priority to CA002024608A priority patent/CA2024608C/en
Priority to NO903875A priority patent/NO903875D0/no
Priority to US08/044,111 priority patent/US5368948A/en
Priority to US08/302,981 priority patent/US5582924A/en
Pending 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)
  • 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)
  • Magnetic Treatment Devices (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
GB898900398A 1989-01-09 1989-01-09 Magnetic materials Pending GB8900398D0 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
GB898900398A GB8900398D0 (en) 1989-01-09 1989-01-09 Magnetic materials
CA002024608A CA2024608C (en) 1989-01-09 1990-01-09 Magnetic materials for security applications
JP2501785A JP2582942B2 (ja) 1989-01-09 1990-01-09 保安用の磁気材料
BR909004571A BR9004571A (pt) 1989-01-09 1990-01-09 Marcador magneticamente ativo
AU48248/90A AU620198B2 (en) 1989-01-09 1990-01-09 Magnetic materials for security applications
PCT/GB1990/000024 WO1990007784A1 (en) 1989-01-09 1990-01-09 Magnetic materials for security applications
DK90901612.3T DK0412137T3 (da) 1989-01-09 1990-01-09 Magnetiske materialer til sikkerhedanvendelser
AT9090901612T ATE105649T1 (de) 1989-01-09 1990-01-09 Magnetische materialien fuer sicherheitsanwendungen.
DE69008789T DE69008789T2 (de) 1989-01-09 1990-01-09 Magnetische materialien für sicherheitsanwendungen.
EP90901612A EP0412137B1 (de) 1989-01-09 1990-01-09 Magnetische materialien für sicherheitsanwendungen
NO903875A NO903875D0 (no) 1989-01-09 1990-09-05 Magnetiske materialer for sikkerhets-applikasjoner.
US08/044,111 US5368948A (en) 1989-01-09 1993-04-09 Magnetic materials for security applications
US08/302,981 US5582924A (en) 1989-01-09 1994-09-12 Magnetic materials for security applications

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB8900398D0 true GB8900398D0 (en) 1989-03-08

Family

ID=10649786

Family Applications (1)

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

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) NO903875D0 (de)
WO (1) WO1990007784A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0774740B1 (de) * 1989-10-31 2003-03-12 Checkpoint Systems, Inc. Etiketten für elektronisches Warenüberwachungssystem
US5580664A (en) * 1992-12-23 1996-12-03 Minnesota Mining And Manufacturing Company Dual status thin-film eas marker having multiple magnetic layers
AU669014B2 (en) * 1992-12-23 1996-05-23 Minnesota Mining And Manufacturing Company Dual status thin-film EAS marker
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

Family Cites Families (6)

* 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
DE3880202T2 (de) * 1987-06-08 1993-08-05 Esselte Meto Int Gmbh Magnetische vorrichtungen.

Also Published As

Publication number Publication date
CA2024608C (en) 1997-08-19
NO903875L (no) 1990-09-05
BR9004571A (pt) 1991-07-30
JP2582942B2 (ja) 1997-02-19
WO1990007784A1 (en) 1990-07-12
JPH03504183A (ja) 1991-09-12
EP0412137B1 (de) 1994-05-11
NO903875D0 (no) 1990-09-05
CA2024608A1 (en) 1990-07-10
ATE105649T1 (de) 1994-05-15
DE69008789D1 (de) 1994-06-16
DK0412137T3 (da) 1994-06-06
EP0412137A1 (de) 1991-02-13
AU4824890A (en) 1990-08-01
AU620198B2 (en) 1992-02-13
DE69008789T2 (de) 1994-11-24

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