Title:
圧電磁器組成物
Document Type and Number:
Japanese Patent JP3588215
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a piezoelectric porcelain compsn. ensuring a higher electromechanical coupling factor than the conventional compsn. SOLUTION: This piezoelectric porcelain compsn. is a multiple perovskite type compd. contg. at least Pb, Zr, Ti, Nb, Yb, Co and Sb as metallic components represented by the formula (molar ratio) Pba [(Nb1/2 Yb1/2 )d (Nb2/3 Co1/3 )e (Nb1/2 Sb1/2 )1-d-e ]b (Zr1-c Tic )1-b O3 (where 0.98<=a<=1.04, 0.08<=b<=0.12, 0.49<=c<=0.52, 0.40<=d<=0.60 and 0.35<=e<=0.55).
Inventors:
Tomohiro Kawamoto
Kenichi Yoshimura
Kenichi Yoshimura
Application Number:
JP35119996A
Publication Date:
November 10, 2004
Filing Date:
December 27, 1996
Export Citation:
Assignee:
Kyocera Corporation
International Classes:
C04B35/49; H01L41/187; (IPC1-7): C04B35/49; H01L41/187
Domestic Patent References:
| JP45010311B1 | ||||
| JP9124367A | ||||
| JP61010061A | ||||
| JP8165169A | ||||
| JP7187781A | ||||
| JP7172915A | ||||
| JP4055366A | ||||
| JP50064800A | ||||
| JP46027070A | ||||
| JP7267733A | ||||
| JP10101422A | ||||
| JP9020559A |