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. 06, 2019
Filed:
Oct. 01, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Kazutoshi Torashima, Yokohama, JP;
Takahiro Akiyama, Atsugi, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An electrostatic capacitance type transducer includes one or more elements. The one or more elements each include a plurality of cell groupseach including a cellincluding a first electrodeand a second electrodearranged with a gap therebetween, the second electrode being electrically connected to a shared signal extraction electrode. In the cell group, each of the cells has an equal wiring length from the shared signal extraction electrode. The electrostatic capacitance of the plurality of cell groups, the wiring resistance between two adjacent cell groups, the number of cell groups in the element, and the central frequency of the element satisfy a predetermined relationship to increase transmission efficiency or reception sensitivity.