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:
Jun. 08, 2021
Filed:
May. 10, 2019
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Eiji Osawa, Chino, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 7/12 (2006.01); G01N 29/11 (2006.01);
U.S. Cl.
CPC ...
B65H 7/125 (2013.01); G01N 29/11 (2013.01);
Abstract
A multi-feed detection device includes a transmission circuit substrate on which an ultrasonic transmitter transmitting an ultrasonic wave is installed, and an ultrasonic receiver receiving the ultrasonic wave. The ultrasonic transmitter transmits the ultrasonic wave in a direction intersecting a thickness direction of the transmission circuit substrate and at least one of the ultrasonic transmitter and the ultrasonic receiver has a plurality of ultrasonic elements.