Title:
HIGH FREQUENCY POWER INDUCTANCE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2002/078022
Kind Code:
A1
Abstract:
A high frequency power inductance element capable of remarkably reducing a leakage by remarkably reducing an interwinding capacity, remarkably increasing a heat radiation from coils, and remarkably improving a productivity and a cost, comprising coils (L1, L2) formed of a band-shaped conductor (10) spirally wound in a cylindrical shape so that the wider surfaces thereof come flush with each other, an electrically insulated bobbin (2) for installing the coils (L1, L2) thereon, and cores (31, 32) inserted into the bobbin (2) to form a closed magnetic circuit.
Inventors:
YAMADA KATSUO (JP)
NAKAO FUMIAKI (JP)
AKAYA TOMOYUKI (JP)
OTA SATOSHI (JP)
NAKAO FUMIAKI (JP)
AKAYA TOMOYUKI (JP)
OTA SATOSHI (JP)
Application Number:
PCT/JP2002/002610
Publication Date:
October 03, 2002
Filing Date:
March 19, 2002
Export Citation:
Assignee:
FDK CORP (JP)
YAMADA KATSUO (JP)
NAKAO FUMIAKI (JP)
AKAYA TOMOYUKI (JP)
OTA SATOSHI (JP)
YAMADA KATSUO (JP)
NAKAO FUMIAKI (JP)
AKAYA TOMOYUKI (JP)
OTA SATOSHI (JP)
International Classes:
H01F17/04; H01F19/00; H01F27/26; H01F27/28; H01F27/32; H01F30/00; H01F37/00; H01F27/29; (IPC1-7): H01F37/00; H01F17/04; H01F19/00; H01F27/28
Foreign References:
| JPH04338616A | 1992-11-25 | |||
| JPH077111U | 1995-01-31 | |||
| JPH0696971A | 1994-04-08 | |||
| JP2000133532A | 2000-05-12 | |||
| JP2000261135A | 2000-09-22 | |||
| JP2002033226A | 2002-01-31 | |||
| JPH06196341A | 1994-07-15 |
Attorney, Agent or Firm:
Isshiki, Kensuke (Shinbashi 2-chome Minato-ku, Tokyo, JP)
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