Patent ID: 9698337
Date: 2017-07-04
CPC Classifications: B06B,B41J,G02B,H01L,H02N,H04N

Claim:
1. A piezoelectric material comprising: a metal oxide represented by General Formula (1); and 0.04 parts by weight or more and 0.36 parts by weight or less of Mn and 0.042 parts by weight or more and 0.850 parts by weight or less of Bi on a metal basis relative to 100 parts by weight of the metal oxide, wherein the piezoelectric material includes first crystal grains having a perovskite structure, and second crystal grains having a crystal structure different from that of the first crystal grain, and the second crystal grain contains at least one metal oxide selected from Ba 4 Ti 12 O 27 and Ba 6 Ti 17 O 40 (where 0.09≦x≦0.30, 0.025≦y≦0.085, 0.986≦a≦1.02).