(19)
(11) EP 2 800 400 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
21.01.2015 Bulletin 2015/04

(43) Date of publication:
05.11.2014 Bulletin 2014/45

(21) Application number: 12862613.2

(22) Date of filing: 22.11.2012
(51) International Patent Classification (IPC): 
H04R 17/00(2006.01)
A61B 18/00(2006.01)
H01L 41/18(2006.01)
 A61B 8/00(2006.01)
H01L 41/083(2006.01)
H04R 17/10(2006.01)
(86) International application number:
PCT/JP2012/080315
(87) International publication number:
WO 2013/099482 (04.07.2013 Gazette 2013/27)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 26.12.2011 JP 2011283670

(71) Applicant: Olympus Corporation
Shibuya-ku Tokyo 151-0072 (JP)

(72) Inventor:
  • ITO, Hiroshi
    Shibuya-ku, Tokyo 151-0072 (JP)

(74) Representative: Winter, Brandl, Fürniss, Hübner, Röss, Kaiser, Polte - Partnerschaft mbB 
Patent- und Rechtsanwaltskanzlei Alois-Steinecker-Strasse 22
85354 Freising
85354 Freising (DE)

   


(54) ULTRASONIC VIBRATION DEVICE, AND ULTRASONIC MEDICAL APPARATUS


(57) There is provided an ultrasound transducer device 2 including a plurality of piezoelectric single-crystal plates 44a to 44f that are stacked such that polarization components thereof are alternately inverted. The plurality of piezoelectric single-crystal plates 44a to 44f are stacked such that directions thereof in which strain deformation in a direction orthogonal to a direction of voltage application from electrodes 45a, 45b respectively interposed between the plurality of piezoelectric single-crystal plates becomes largest coincide with each other. There is also provided an ultrasound medical apparatus 1 including the ultrasound transducer device 2.