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. 31, 2026
Filed:
Jun. 28, 2023
Seiko Epson Corporation, Tokyo, JP;
Keita Kubo, Matsumoto, JP;
Chikara Kojima, Matsumoto, JP;
Mitsuru Miyasaka, Shiojiri, JP;
Yoshio Arai, Shiojiri, JP;
Hiroto Tomioka, Shiojiri, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
A fluid deviceincludes: a flow paththrough which a fluid containing a fine particle flows; an ultrasonic transmitterconfigured to transmit an ultrasonic wave to the fluid in the flow pathin response to an input of a drive signal; a flow velocity measurement unitconfigured to measure a flow velocity of the fluid in the flow path; and a controllerconfigured to control the ultrasonic transmitter. The controllersets an amplitude of the drive signal according to a measured flow velocity that is a flow velocity measured by the flow velocity measurement unit, and inputs the drive signal having the set amplitude to the ultrasonic transmitter