| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1476752f2420c8f8eb53464cf7fc922b |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-4672
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-461 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-491
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-49
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10N30-853 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-467
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-461 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-49
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-491
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L41-187 |
| filingDate |
2000-05-19^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_97eb24a586a3e1c068b7f9629fe0ebef
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df5213eec7b10820f07fd6a77adc335e |
| publicationDate |
2001-06-15^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20010049376-A |
| titleOfInvention |
Piezoelectric ceramic material and piezoelectric ceramic sintered body obtained using the same |
| abstract |
The present invention relates to a piezoelectric ceramic sintered having the characteristics of low electromechanical coupling coefficient, small resonance resistance, and small temperature dependence of the resonant frequency required for designing a narrow-band filter. To provide a piezoelectric ceramic material capable of obtaining a body), the piezoelectric ceramic material herein is represented by the general formula (Pb a Sr b ) (Zr c Ti d Mn e Nb f ) O 3 as a main component and each composition is Contains components satisfying the ratio 0.93 ≤ a ≤ 1.01, 0.01 ≤ b ≤ 0.04, 0.37 ≤ c ≤ 0.47, 0.48 ≤ d ≤ 0.58, 0.0105 ≤ e ≤ 0.06, 0.02 ≤ f ≤ 0.06 and 1.05 ≤ 2e / f ≤ 2 and, as additives or less in a weight ratio to the main component of 0.1 wt% or more and 0.003% by weight and a SiO 2 and 0.003 wt.% 0.1 wt.% or less Al 2 O 3. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100434418-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100431178-B1 |
| priorityDate |
1999-05-20^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |