Title:
LC複合電子部品
Document Type and Number:
Japanese Patent JP4434301
Kind Code:
B2
Abstract:
An LC composite electronic component, having a large noise suppression effect without increasing in size, includes a multilayer structure in which first and second capacitor units (10), (20) and first and second coil units (30), (40) are stacked and incorporates four LC resonance circuits. A noise circulating capacitance (C21) is formed between a coil electrode (31a) and a resonance adjusting electrode (51a), and a noise circulating capacitance (C22) is formed between a coil electrode (31c) and a resonance adjusting electrode (51b). A noise circulating capacitance (C23) is formed between a coil electrode (42a) and a resonance adjusting electrode (53a), and a noise circulating capacitance (C24) is formed between a coil electrode (42c) and a resonance adjusting electrode (53b). A noise circulating capacitance (C25) is formed between lead-out electrodes (32a), (41b), and a noise circulating capacitance (C26) is formed between lead-out electrodes (32d), (41d).
Inventors:
Hiroshi Fukushima
Yuka Sasaki
Daisuke Tanaka
Haruhiko Ueno
Yuka Sasaki
Daisuke Tanaka
Haruhiko Ueno
Application Number:
JP2008290830A
Publication Date:
March 17, 2010
Filing Date:
November 13, 2008
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H03H7/01; H01F17/00; H01F27/00; H01G4/40
Domestic Patent References:
| JP2006041820A | ||||
| JP2006019936A | ||||
| JP2006025144A |
Foreign References:
| WO2006022115A1 |
Attorney, Agent or Firm:
Takeichi Morishita
Tani Kazuhiro
Tani Kazuhiro