CA2492950A1 - Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same - Google Patents

Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same Download PDF

Info

Publication number
CA2492950A1
CA2492950A1 CA002492950A CA2492950A CA2492950A1 CA 2492950 A1 CA2492950 A1 CA 2492950A1 CA 002492950 A CA002492950 A CA 002492950A CA 2492950 A CA2492950 A CA 2492950A CA 2492950 A1 CA2492950 A1 CA 2492950A1
Authority
CA
Canada
Prior art keywords
magnetic field
surveillance system
electronic article
article surveillance
making same
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
Application number
CA002492950A
Other languages
French (fr)
Other versions
CA2492950C (en
Inventor
Nen-Chin Liu
Ming-Ren Lian
Jimmy Cantey
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.)
Tyco Fire and Security GmbH
Original Assignee
Individual
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
Priority claimed from US08/269,651 external-priority patent/US5469140A/en
Application filed by Individual filed Critical Individual
Publication of CA2492950A1 publication Critical patent/CA2492950A1/en
Application granted granted Critical
Publication of CA2492950C publication Critical patent/CA2492950C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

A ribbon-shaped strip of an amorphous magnetic alloy is heat treated, while applying a transverse saturating magnetic field. The treated strip is used in a marker for a pulsed-interrogation electronic article surveillance system. A preferred material for the strip is formed of iron, cobalt, silicon and boron with the proportion of cobalt exceeding 30% by atomic percent.
CA002492950A 1994-06-30 1995-04-11 Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same Expired - Lifetime CA2492950C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/269,651 1994-06-30
US08/269,651 US5469140A (en) 1994-06-30 1994-06-30 Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same
CA002146814A CA2146814C (en) 1994-06-30 1995-04-11 Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002146814A Division CA2146814C (en) 1994-06-30 1995-04-11 Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same

Publications (2)

Publication Number Publication Date
CA2492950A1 true CA2492950A1 (en) 1995-12-31
CA2492950C CA2492950C (en) 2007-06-26

Family

ID=34378549

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002492950A Expired - Lifetime CA2492950C (en) 1994-06-30 1995-04-11 Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same
CA002494255A Expired - Lifetime CA2494255C (en) 1994-06-30 1995-04-11 Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002494255A Expired - Lifetime CA2494255C (en) 1994-06-30 1995-04-11 Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same

Country Status (1)

Country Link
CA (2) CA2492950C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110544356A (en) * 2019-09-20 2019-12-06 深圳亿东科技股份有限公司 Anti-theft label

Also Published As

Publication number Publication date
CA2494255A1 (en) 1995-12-31
CA2494255C (en) 2007-04-10
CA2492950C (en) 2007-06-26

Similar Documents

Publication Publication Date Title
CA2146814A1 (en) Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same
CA2269041A1 (en) Magnetostrictive element for use in a magnetomechanical surveillance system
CA2093938C (en) Deactivatable/reactivatable magnetic marker having a step change in magnetic flux
ATE226645T1 (en) METHOD FOR ANNEALING AMORPHIC ALLOYS AND METHOD FOR PRODUCING A MARKING ELEMENT
AU7037100A (en) A glass-coated amorphous magnetic microwire marker for article surveillance
DE60143820D1 (en) Method for annealing amorphous alloys
AU4819696A (en) Continuous process and reel-to-reel transport apparatus for transverse magnetic field annealing of amorphous material used in an EAS marker
ATE340396T1 (en) METHOD FOR ANNOUNCING AMORPHIC TAPE AND LABEL FOR ELECTRONIC MONITORING SYSTEM
JPS56116844A (en) Manufacture of amorphous magnetic material and rare earth element magnet
CA2280143A1 (en) Active element for magnetomechanical eas marker incorporating particles of bias material
CA2097150A1 (en) Semi-Hard Magnetic Elements and Method of Making Same
TW244390B (en) Permanent magnet, production method thereof and material therefor
EP0378131A3 (en) A method of manufacturing a grain-oriented electrical steel strip
CA2494255A1 (en) Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same
EP0437635A4 (en) Ferromagnetic metal particle and production thereof
AU6066596A (en) A deactivatable security strip and a process and a facility for manufacture of a deactivatable security strip
ZA983959B (en) Continuous process for transverse magnetic field annealing of amorphous material used in an eas marker and composition of amorphous material.
ES2004958A6 (en) Device for protecting against an environing magnetic flux, objects susceptible of being altered by a magnetic flux, particularly objects presenting a carrier medium for magnetic inscriptions.
EP0420699A3 (en) Organic magnetic member, organic ferromagnetic member, and process for producing the same, and time-responsible organic ferromagnetic member and process for controlling development of ferromagnetism
AU7319798A (en) Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same
EP0417951A3 (en) Fe-si-al alloy magnetic thin film and method of manufacturing the same
Deryagin et al. Influence of Intense Plastic Deformations on the Ferromagnetic Phase Formation in Stable Austenite Steels
Shulika et al. Effect of Annealing in Alternating and Constant Magnetic Fields on the Magnetic Properties of the Amorphous Alloy Fe sub 81 Si sub 7 B sub 12
Belova et al. Specific thermal properties of Fe-Cr-Co system alloys
Klinger et al. Stress effects on the domain configuration of amorphous and crystalline soft magnetic materials

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20150413