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:
Jul. 05, 2022
Filed:
Aug. 07, 2019
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B06B 1/02 (2006.01); G01N 29/24 (2006.01); A61B 8/00 (2006.01); B06B 1/06 (2006.01);
U.S. Cl.
CPC ...
B06B 1/0292 (2013.01); A61B 8/4494 (2013.01); B06B 1/067 (2013.01); G01N 29/245 (2013.01); G01N 29/2406 (2013.01); A61B 8/4483 (2013.01);
Abstract
A capacitive device includes a unit cell including a CMUT, and a transmission/reception plate for impedance matching which is provided above the unit cell via a connection portion, in which a membrane of the CMUT constituting the unit cell is connected to the transmission/reception plate via the connection portion having an area smaller than that of the transmission/reception plate. The area of the transmission/reception plate is desirably larger than the area of a hollow portion of the CMUT.