A piezoelectric vibrator, an ultrasonic probe, a piezoelectric vibrator manufacturing method, and an ultrasonic probe manufacturing method

Japanese Patent JP6091951

B2

According to embodiment, a piezoelectric transducer includes a polarized single crystal piezoelectric body comprising a lead complex perovskite compound containing niobium oxide and at least one of magnesium oxide and indium oxide and including a first plane whose crystal orientation is [100] and a second plane which faces the first plane and whose crystal orientation is [100], and first electrode provided on the first plane side of the body and a second electrode provided on the second plane side of the body. A ratio of a second FWHM of diffracted X-rays at the Miller index (400) of the body to a first FWHM of diffracted X-rays at the miller index (400) of the body which is unpolarized or has undergone depolarization processing is not less than 0.22 and not more than 0.4.

Yohachi Yamashita
Noriko Yamamoto
Yasuharu Hosono
Kazuhiro Izumi

JP2013062250A

March 08, 2017

March 25, 2013

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Toshiba Medical Systems Corporation

H01L41/187; A61B8/00; C01G33/00; G01N29/24; H01L41/09; H01L41/113; H01L41/257; H04R17/00; H04R31/00

JP2006156976A
JP2013026682A
JP2009094139A
JP9083038A
JP2009188104A

US20060091353

Kurata Masatoshi
Yoshihiro Fukuhara
Makoto Nakamura
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Takao Ako
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi

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