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. 09, 2024
Filed:
Nov. 20, 2019
Horiba Stec, Co., Ltd., Kyoto, JP;
Shigeyuki Hayashi, Kyoto, JP;
Tadahiro Yasuda, Kyoto, JP;
HORIBA STEC, Co., Ltd., Kyoto, JP;
Abstract
In order to provide a piezoelectric actuator and a fluid control valve that can vaporize a liquid material more effectively than a conventional arrangement, the piezoelectric actuator comprises a piezoelectric stack wherein a piezoelectric ceramic layer and an electrode layer are alternately laminated, a DC voltage application circuit that displaces the piezoelectric stack by applying a DC voltage to at least a part or whole of the piezoelectric stack, and a vibration voltage application circuit that vibrates the piezoelectric stack by applying a voltage having a predetermined frequency or above to at least a part or whole of the piezoelectric stack.