Title (en)

Coil Antenna

Title (de)

Spulenantenne

Title (fr)

Antenne bobinée

Publication

EP 1592085 A1 20051102 (EN)

Application

EP 04023835 A 20041006

Priority

• JP 2004131977 A 20040427
• JP 2004195294 A 20040701

Abstract (en)

A coil antenna is disclosed comprising a magnetic core and a wire wound around the magnetic core. The magnetic core is made of a mixture comprising soft magnetic powder and an organic binder agent. The magnetic core has a specific complex permeability whose real part µ' is 20 or more over a frequency range of 10 MHz or less and whose imaginary part µ" is 10 or more over a frequency range of 10MHz or more so that the magnetic core is also servable as a noise suppressor against high-frequency noise.

IPC 1-7

H01Q 7/08; H01Q 1/00

IPC 8 full level

H01Q 1/00 (2006.01); H01Q 1/27 (2006.01); H01Q 7/08 (2006.01)

CPC (source: EP)

H01Q 1/273 (2013.01); H01Q 7/08 (2013.01)

Citation (search report)

• [X] US 6229444 B1 20010508 - ENDO TAKANORI [JP], et al
• [A] US 3778836 A 19731211 - TANAKA T
• [A] US 6712989 B1 20040330 - AWAKURA YOSHIO [JP], et al
• [A] EP 1150311 A2 20011031 - TDK CORP [JP]
• [A] EP 0480064 A1 19920415 - CREATIC JAPAN INC [JP]
• [A] US 6329903 B1 20011211 - YAMAMORI TAKESHI [JP]
• [A] EP 0443491 A1 19910828 - NIPPON TELEGRAPH & TELEPHONE [JP]
• [A] EP 0877394 A1 19981111 - TOKIN CORP [JP]

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1592085 A1 20051102; EP 1592085 B1 20080716; DE 602004015075 D1 20080828

DOCDB simple family (application)

EP 04023835 A 20041006; DE 602004015075 T 20041006