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.

Date of Patent:
Jul. 01, 2025

Filed:

Apr. 15, 2022
Applicant:

Koganei Corporation, Koganei, JP;

Inventor:

Takeo Yajima, Koganei, JP;

Assignee:

Koganei Corporation, Koganei, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B05C 11/10 (2006.01); F04B 45/02 (2006.01); F04B 45/06 (2006.01); G03F 7/16 (2006.01);
U.S. Cl.
CPC ...
B05C 11/1002 (2013.01); F04B 45/02 (2013.01); F04B 45/06 (2013.01); G03F 7/162 (2013.01);
Abstract

A liquid supplying device includes: a first pump and a second pump respectively provided in a liquid supplying path that supplies liquid contained in a liquid accommodating portion to an applicator; a filter passing through the liquid that flows toward the applicator; and a return flow path that returns the liquid passing through the filter to the liquid accommodating portion. In a circulating mode that supplies the liquid to the return flow path and stops supply of the liquid to the applicator, any of the first pump and the second pump continuously supplies the liquid to the return flow path.


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