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.

Date of Patent:
Jul. 19, 2022

Filed:

Mar. 27, 2020
Applicant:

National Univ Corp Yamagata University, Yamagata, JP;

Inventors:

Daisuke Kumaki, Yamagata, JP;

Junichi Toukairin, Yamagata, JP;

Shizuo Tokito, Yamagata, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/047 (2006.01); H01L 41/113 (2006.01); H01L 41/193 (2006.01); A61B 5/00 (2006.01);
U.S. Cl.
CPC ...
A61B 5/6843 (2013.01); H01L 41/047 (2013.01); H01L 41/1132 (2013.01); A61B 2562/0247 (2013.01); H01L 41/193 (2013.01);
Abstract

A piezoelectric sensor configured to detect a change of pressure from a living body in a predetermined location includes: a pair of electrodes spaced from one another and formed to spread as a sheet; a pressure-sensitive layer disposed between the pair of electrodes and configured to generate electric charge in response to the change of pressure; a pair of terminals connected to the pair of electrodes, respectively, and configured to output an electrical signal supplied from the pair of electrodes in response to the change of pressure of the living body. An edge of at least one of the pair of electrodes extending toward the pair of terminals is disposed to protrude outside the pressure-sensitive layer, and the electrical signal propagates through the edge and is outputted from the pair of terminals.


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