The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2018
Filed:
Sep. 19, 2016
Seiko Epson Corporation, Tokyo, JP;
Jiro Tsuruno, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An ultrasonic transducer includes 'm' first ultrasonic elements including first diaphragms, and 'n' second ultrasonic elements including second diaphragms. “m” represents a number of the first ultrasonic elements and is an integer of 1 or more. Each of the first diaphragms has a first area. “n” second ultrasonic elements includes second diaphragms. Each of the “n” second diaphragms has a second area being smaller than the first area. “n” represents a number of the second ultrasonic elements and is an integer larger than “m”. The “m” first ultrasonic elements are electrically connected in series in a case where “m” is an integer of 2 or more. The “n” second ultrasonic elements are electrically connected in series. B/A is within a range of 0.9 to 1.1, when a total sum of the first areas is “A” and a total sum of the second areas is “B”.