Patent ID: 9660175
Date: 2017-05-23
CPC Classifications: B06B,B08B,B41J,C04B,G02B,H01L,H02N,H04N

Claim:
1. A piezoelectric ceramic, comprising: a main component containing a perovskite metal oxide having the following general formula (1); Mn as a first auxiliary component; and a second auxiliary component containing at least one element selected from the group consisting of Cu, B, and Si, wherein the amount b (mol) of Mn per mole of the metal oxide is in the range of 0.0048≦b≦0.0400, the second auxiliary component content on a metal basis is 0.001 parts by weight or more and 4.000 parts by weight or less per 100 parts by weight of the metal oxide, and the value a of the general formula (1) is in the range of 0.9925+b≦a≦1.0025+b.