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:
Sep. 15, 2026
Filed:
Feb. 18, 2021
Fujikin Incorporated, Osaka, JP;
Nobuo Nakamura, Osaka, JP;
Tomohiro Nakata, Osaka, JP;
FUJIKIN INCORPORATED, Osaka, JP;
Abstract
A valve device includes a body that includes flow paths, a recessed portion, and a valve chamber; an inner disk that includes an inner peripheral edge portion and an outer peripheral edge portion; a diaphragm; a first annular surface that is formed at the inner peripheral edge portion on a side facing the valve chamber; a second annular surface that is formed at the inner peripheral edge portion on a side opposite to the first annular surface and is supported by a bottom surface of the recessed portion; a first sealing portion, which is held by the first annular surface, on and from which the diaphragm is seated and separated; and a second sealing portion that is disposed between the second annular surface and the bottom surface of the recessed portion.