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:
Mar. 05, 2019
Filed:
Mar. 15, 2018
Seiko Epson Corporation, Tokyo, JP;
Kenji Otokita, Yamagata, JP;
Seiji Ihara, Azumino, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A plate-like detection plate portion that undergoes strain due to contact with an object is used for detecting the presence of an object that can come into contact with a liquid ejecting unit with relative movement between a medium and the liquid ejecting unit, and is provided with a piezoelectric film sensor that outputs an electric signal corresponding to strain of the detection plate portion. The piezoelectric film sensor includes a detection film portion in which a piezoelectric element that causes a voltage change corresponding to the strain is arranged, and an output circuit portion that converts the voltage change of the detection film portion into an electric signal and outputs the electric signal. The output circuit portion is provided on a second plate surface, which is a rear surface of a first plate surface facing the medium, of the detection plate portion.