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Title:
DIELECTRIC CERAMIC COMPOSITION AND CERAMIC ELECTRONIC COMPONENT
Document Type and Number:
WIPO Patent Application WO/2019/198418
Kind Code:
A1
Abstract:
This dielectric ceramic composition comprises a first ingredient and a second ingredient. The first ingredient comprises 0.00 to 35.85% by mole of an oxide of Ca, 0.00 to 47.12% by mole of an oxide of Sr, 0.00 to 51.22% by mole of an oxide of Ba, 0.00 to 17.36% by mole of an oxide of Ti, 0.00 to 17.36% by mole of an oxide of Zr, 0.00 to 2.60% by mole of an oxide of Sn, 0.00 to 35.32% by mole of an oxide of Nb, 0.00 to 35.32% by mole of an oxide of Ta, and 0.00 to 2.65% by mole of an oxide of V. As the second ingredient, this dielectric ceramic composition comprises at least: 0.005 to 3.500% by mass of an oxide of Mn (a); and 0.080 to 20.000% by mass of an oxide of Cu and/or 0.300 to 45.000% by mass of an oxide of Ru (b). According to the present invention, a dielectric ceramic composition can be provided, wherein changes in the electrostatic capacity are small even under a high-temperature environment, dielectric losses at 25°C and 200°C are small, and the insulation resistance value under a high-temperature environment is high.

Inventors:
NOMURA Takeshi (Tosu Plant 5-3, Aza-wakazakura, Fujinoki-machi, Tosu-sh, Saga 48, 〒8410048, JP)
SASAKI Yukari (Tosu Plant 5-3, Aza-wakazakura, Fujinoki-machi, Tosu-sh, Saga 48, 〒8410048, JP)
Application Number:
JP2019/010830
Publication Date:
October 17, 2019
Filing Date:
March 15, 2019
Export Citation:
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Assignee:
SHOEI CHEMICAL INC. (1-1 Nishishinjuku 2-chome, Shinjuku-ku Tokyo, 43, 〒1630443, JP)
International Classes:
C04B35/495; C04B35/499; H01B3/12; H01G4/30
Domestic Patent References:
WO2017163842A12017-09-28
WO2017163845A12017-09-28
Foreign References:
JPH03274607A1991-12-05
Attorney, Agent or Firm:
ASHITABA INTERNATIONAL PATENT OFFICE (Kaede Bldg. 2F, 2-3-6 Uchikanda, Chiyoda-k, Tokyo 47, 〒1010047, JP)
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