US 12,133,468 B2
Ultrasonic wave generation device with low profile
Takaaki Asada, Nagaokakyo (JP); Motonori Nakamura, Nagaokakyo (JP); and Shinichi Sasaki, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Nagaokakyo (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Sep. 13, 2021, as Appl. No. 17/473,221.
Application 17/473,221 is a continuation of application No. PCT/JP2020/009292, filed on Mar. 5, 2020.
Claims priority of application No. 2019-047399 (JP), filed on Mar. 14, 2019.
Prior Publication US 2021/0408363 A1, Dec. 30, 2021
Int. Cl. H10N 30/20 (2023.01); H10N 30/87 (2023.01); H10N 30/88 (2023.01); H04R 17/00 (2006.01)
CPC H10N 30/20 (2023.02) [H10N 30/87 (2023.02); H10N 30/88 (2023.02); H04R 17/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An ultrasonic wave generation device, comprising:
a drive unit having a piezoelectric member and an electrode disposed on a surface of the piezoelectric member and that is constructed to entirely vibrate flexurally;
a connection member connected to a portion of the drive unit that includes a point of maximum displacement of the drive unit when the drive unit is subjected to flexural vibration; and
a vibrating unit connected to the connection member and constructed to generate ultrasonic waves when the vibrating unit vibrates due to the flexural vibration transmitted by the connection member.