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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.:

US 12578021 B1

PDFFull Text
Date of Patent:
Mar. 17, 2026

Filed:

Oct. 20, 2022

Flow rate control valve, manufacturing method of flow rate control valve, and flow rate control apparatus

Applicant:

Horiba Stec, Co., Ltd., Kyoto, JP;

Inventors:

Kazuya Shakudo, Kyoto, JP;

Shigeyuki Hayashi, Kyoto, JP;

Masayuki Nagasawa, Kyoto, JP;

Assignee:

HORIBA STEC, Co., Ltd., Kyoto, JP;

Attorney:

Alleman Hall LLP

Primary Examiner:

Marina A Tietjen

Int. Cl.
CPC ...
F16K 1/36 (2006.01); F16K 1/42 (2006.01); F16K 7/12 (2006.01); F16K 7/14 (2006.01); F16K 7/16 (2006.01); F16K 7/17 (2006.01); F16K 27/02 (2006.01); F16K 37/00 (2006.01);
U.S. Cl.
CPC ...
F16K 1/36 (2013.01); F16K 1/42 (2013.01); F16K 7/12 (2013.01); F16K 7/14 (2013.01); F16K 7/16 (2013.01); F16K 7/17 (2013.01); F16K 27/0236 (2013.01); F16K 37/00 (2013.01);
Abstract

A flow rate control valve includes a valve seat portion, a valve member, a driving portion, and a support member supporting the valve member via a diaphragm portion. The valve member has an opposite face opposite from a valve seat face with respect to a seat face and a circumferential face connecting together the seat face and the opposite face. The diaphragm portion is connected to the circumferential face of the valve member at a position closer to the seat face than to the opposite face. The support member has a first face on the same side as the opposite face with respect to a membrane face of the diaphragm portion and a second face closer to the valve seat portion than the first face. When the diaphragm portion is not deformed, the opposite face and the first face are on the same plane.

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