Global Patent Index - EP 1055132 A1

EP 1055132 A1 2000-11-29 - GIANT MAGNETORESISTIVE MAGNETIC FIELD SENSOR

Title (en)

GIANT MAGNETORESISTIVE MAGNETIC FIELD SENSOR

Title (de)

RIESENMAGNETOWIEDERSTANDSMAGNETFELDWANDLER

Title (fr)

CAPTEUR DE CHAMP MAGNETIQUE A MAGNETORESISTANCE GEANTE

Publication

EP 1055132 A1 (FR)

Application

EP 99958303 A

Priority

  • FR 9903101 W
  • FR 9815697 A

Abstract (en)

[origin: FR2787197A1] The invention concerns a magnetic sensor comprising first and second elements (1, 2) in thin magnetic material layers with magnetic anisotropy in the plane having in said plane two easy magnetisation axes. The coercitive field of one of the elements is of a different value from that of the other element. The two elements have mutually parallel elongated shapes perpendicular to their easy magnetisation direction in the absence of an external magnetic field. The width of said elements is such that it compels at least one of the elements to have its magnetisation oriented along the length of the element in the absence of external magnetic field. The invention is useful for measuring magnetic field.

IPC 1-7 (main, further and additional classification)

G01R 33/09

IPC 8 full level (invention and additional information)

G01R 33/09 (2006.01); G11B 5/39 (2006.01); H01L 43/08 (2006.01); H01L 43/12 (2006.01)

CPC (invention and additional information)

B82Y 25/00 (2013.01); G01R 33/093 (2013.01); Y10T 428/1121 (2013.01)

Citation (search report)

See references of WO 0036429A1

Designated contracting state (EPC)

DE ES GB IT

EPO simple patent family

FR 2787197 A1 20000616; FR 2787197 B1 20010223; EP 1055132 A1 20001129; JP 2002532894 A 20021002; US 6496004 B1 20021217; WO 0036429 A1 20000622

INPADOC legal status


2006-06-21 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20051228

2004-05-12 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): DE ES GB IT

2001-10-04 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: THALES

2000-11-29 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000810

2000-11-29 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE