Title:
CHOKE COIL
Document Type and Number:
WIPO Patent Application WO/2002/050849
Kind Code:
A1
Abstract:
A choke coil which can be arranged tightly on an electronic circuit board (high-density mounting) and can be used over a wide band up to a microwave band while preventing oscillation due to magnetic coupling of choke coils. The choke coil comprises a combination of a coil section (1) formed by winding a conductor wire (2) covered with an insulation coating, rings (3) of width d disposed on the opposite end sides of the coil section (1) and having a center line in the same direction as a core 4 penetrating the coil section (1), and a rod-like core (4) of ferrite or ceramics inserted into the coil section (1).
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Inventors:
KOMIYA KUNIFUMI (JP)
Application Number:
PCT/JP2001/009413
Publication Date:
June 27, 2002
Filing Date:
October 25, 2001
Export Citation:
Assignee:
KOMIYA KUNIFUMI (JP)
International Classes:
H01F17/04; H01F27/29; H01F37/00; H01F27/34; (IPC1-7): H01F17/04; H01F37/00
Foreign References:
| JPS6370116U | 1988-05-11 | |||
| JPH09326317A | 1997-12-16 |
Other References:
See also references of EP 1357564A4
Attorney, Agent or Firm:
KYOSEI INTERNATIONAL PATENT OFFICE (8-14 Akasaka 3-chome Minato-ku, Tokyo, JP)
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