Title:
CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2011/162371
Kind Code:
A1
Abstract:
Provided is a laminated ceramic capacitor that has a high dielectric constant, has a low AC bias property for the relative dielectric constant thereof, and has a small dielectric loss, while satisfying the X5R feature of the EIA standard. A dielectric layer (5) is composed of crystal particles (9), the main ingredient of which is barium titanate, and each of which comprises a core section (9a) the crystal structure of which is a tetragonal system and a shell section (9b) the crystal structure of which is a cubic system. The dielectric layer (5) is comprised of a dielectric ceramic wherein the thickness of the shell section (9b) is 11.8-26.5 nm, and the average particle diameter of the crystal particles (9) is 0.15-0.35 μm.
Inventors:
NAGOYA MASAAKI (JP)
AZUMA YUSUKE (JP)
INAYAMA SHINGO (JP)
YAMAZAKI YOUICHI (JP)
AZUMA YUSUKE (JP)
INAYAMA SHINGO (JP)
YAMAZAKI YOUICHI (JP)
Application Number:
PCT/JP2011/064528
Publication Date:
December 29, 2011
Filing Date:
June 24, 2011
Export Citation:
Assignee:
KYOCERA CORP (JP)
NAGOYA MASAAKI (JP)
AZUMA YUSUKE (JP)
INAYAMA SHINGO (JP)
YAMAZAKI YOUICHI (JP)
NAGOYA MASAAKI (JP)
AZUMA YUSUKE (JP)
INAYAMA SHINGO (JP)
YAMAZAKI YOUICHI (JP)
International Classes:
H01G4/12; C04B35/468; H01B3/12; H01G4/30
Domestic Patent References:
| WO2007063850A1 | 2007-06-07 |
Foreign References:
| JP2009084112A | 2009-04-23 | |||
| JP2009073721A | 2009-04-09 | |||
| JP2005085780A | 2005-03-31 | |||
| JP2009120466A | 2009-06-04 |
Download PDF:
Claims: