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:
Jan. 31, 2023
Filed:
Mar. 04, 2019
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Ryoki Watanabe, Matsumoto, JP;
Kanechika Kiyose, Matsumoto, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 29/024 (2006.01); G01N 11/00 (2006.01); G01N 29/00 (2006.01); G01N 29/44 (2006.01); B41J 2/01 (2006.01);
U.S. Cl.
CPC ...
G01N 11/00 (2013.01); B41J 2/01 (2013.01); G01N 29/00 (2013.01); G01N 29/024 (2013.01); G01N 29/4427 (2013.01); G01N 29/4436 (2013.01); G01N 2011/0073 (2013.01); G01N 2291/011 (2013.01); G01N 2291/012 (2013.01); G01N 2291/0228 (2013.01); G01N 2291/0258 (2013.01);
Abstract
A sonic speed measurement device includes a reception array in which a plurality of reception elements which output reception signals in response to reception of an ultrasonic wave are disposed in one direction, a phase difference detection portion that detects a phase difference between the reception signals output from the reception elements adjacent to each other in a case where the plurality of reception elements receive the ultrasonic wave which propagates in a spherical wave shape from a target point, and a sonic speed calculation portion that calculates a sonic speed of the ultrasonic wave on the basis of the phase difference.