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:
Aug. 02, 2005
Filed:
Nov. 08, 2002
Hiroyuki Muramatsu, Chiba, JP;
Masataka Shinogi, Chiba, JP;
Takashi Nakamura, Chiba, JP;
Seiko Instruments Inc., Chiba, JP;
Abstract
A piezoelectric transducer comprises: a substrate having first and second substrate electrodes forming input and output terminals, and one or more piezoelectric elements for transmitting a supersonic wave to an object to be measured and receiving a reflected wave from the object. The piezoelectric elements are arranged on the substrate and have a first surface electrode connected to the first substrate electrode and a second surface electrode connected to the second substrate electrode via a conductive member. An acoustic matching layer is superposed on the piezoelectric elements for efficiently propagating the supersonic wave on the second surface electrode. The conductive member has a thickness not more than that of the acoustic matching layer and is embedded in the acoustic matching layer.