US 9,812,633 B2
Piezoelectric composition and method for producing same, piezoelectric element/non-lead piezoelectric element and method for producing same, ultrasonic probe and diagnostic imaging device
Hisashi Minemoto, Osaka (JP); and Satoshi Wada, Tokyo (JP)
Assigned to KONICA MINOLTA, INC., Tokyo (JP)
Appl. No. 14/402,659
Filed by KONICA MINOLTA, INC., Chiyoda-ku, Tokyo (JP)
PCT Filed May 16, 2013, PCT No. PCT/JP2013/003130
§ 371(c)(1), (2) Date Nov. 20, 2014,
PCT Pub. No. WO2013/175740, PCT Pub. Date Nov. 28, 2013.
Claims priority of application No. 2012-115712 (JP), filed on May 21, 2012; application No. 2012-115713 (JP), filed on May 21, 2012; application No. 2012-199742 (JP), filed on Sep. 11, 2012; and application No. 2012-199743 (JP), filed on Sep. 11, 2012.
Prior Publication US 2015/0141834 A1, May 21, 2015
Int. Cl. H01L 41/187 (2006.01); H01L 41/193 (2006.01); C04B 35/462 (2006.01); H01L 41/43 (2013.01); C04B 35/26 (2006.01); C04B 35/475 (2006.01); H01L 41/18 (2006.01); H01L 41/37 (2013.01); A61B 8/00 (2006.01)
CPC H01L 41/1878 (2013.01) [A61B 8/4494 (2013.01); C04B 35/26 (2013.01); C04B 35/462 (2013.01); C04B 35/475 (2013.01); H01L 41/18 (2013.01); H01L 41/37 (2013.01); H01L 41/43 (2013.01); A61B 8/4444 (2013.01); A61B 8/4483 (2013.01); C04B 2235/3201 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3234 (2013.01); C04B 2235/3236 (2013.01); C04B 2235/3239 (2013.01); C04B 2235/3251 (2013.01); C04B 2235/3258 (2013.01); C04B 2235/3262 (2013.01); C04B 2235/3274 (2013.01); C04B 2235/3275 (2013.01); C04B 2235/3279 (2013.01); C04B 2235/3287 (2013.01); C04B 2235/3298 (2013.01); C04B 2235/3418 (2013.01); Y10T 29/42 (2015.01)] 53 Claims
OG exemplary drawing
 
1. A piezoelectric composition having a perovskite structure represented by general formula ABO3, and having a composition represented by compositional formula x(Bi0.5K0.5)TiO3-yBi(Mg0.5Ti0.5)O3-zBiFeO3, wherein x+y+z=1, and also represented by a region, in triangle coordinates using x, y, and z in the compositional formula, enclosed by pentagon ABCDE with vertices of point A (1,0,0), point B (0.7,0.3,0), point C (0.1,0.3,0.6), point D (0.1,0.1,0.8), and point E (0.2,0,0.8) but exclusive of segment AE joining point A (1,0,0) and point E (0.2,0,0.8).