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:
Nov. 07, 2023
Filed:
Feb. 28, 2020
Satake Corporation, Tokyo, JP;
Mechano Transformer Corporation, Tokyo, JP;
Takafumi Ito, Tokyo, JP;
Tadashi Matsushita, Tokyo, JP;
Toshiro Higuchi, Tokyo, JP;
Sze Keat Chee, Tokyo, JP;
Yoshinobu Mizuno, Shimotsuma, JP;
Toshitada Hirata, Shimotsuma, JP;
SATAKE CORPORATION, Tokyo, JP;
MECHANO TRANSFORMER CORPORATION, Tokyo, JP;
Abstract
A piezoelectric valve includes: a valve main part including a gas pressure chamber receiving compressed gas supplied from outside; a plate inside the valve main part, and an actuator fixed to the plate and inside the valve main part, which is a case with an opening on a front surface. The plate includes a gas discharge path and a valve seat coming into contact with a valve element of the actuator opening and closing the gas discharge path. A lid member that closes the opening of the case has a gas discharge opening communicating with the gas discharge path of the plate; is welded and fixed to a front surface of the plate, where the gas discharge path opens, on an annular welded part surrounding the gas discharge opening; and is welded and fixed to an end surface of the case on an annular welded part on the outer peripheral part.