Patent Number: 7,821,872

Title: Method for ultrasonic wave transmission and apparatus for ultrasonic wave transmission

Abstract: A method for transmitting an ultrasonic wave is disclosed. The method includes: selecting a first combination of transmission elements from among multiple transmission elements, wherein the first combination of transmission elements includes at least two transmission elements adjacent to each other; and vibrating the transmission surfaces of the first combination of transmission elements in a substantially same phase to transmit the ultrasonic wave with a first directivity. The first directivity is different from a second directivity of the ultrasonic wave transmitted from single transmission element.

Inventors: Okuda; Yasuyuki (Aichi-gun, JP)

Assignee: Denso Corporation

International Classification: G01V 1/18 (20060101); H01L 41/00 (20060101)

Expiration Date: 2018-10-26 0:00:00