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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 11745142 B1

PDFFull Text
Date of Patent:
Sep. 05, 2023

Filed:

Aug. 03, 2020

Filter device, purification device, chemical solution production method

Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Tetsuya Kamimura, Shizuoka, JP;

Tadashi Omatsu, Shizuoka, JP;

Tetsuya Shimizu, Shizuoka, JP;

Satomi Takahashi, Shizuoka, JP;

Assignee:

FUJIFILM Corporation, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Bradley R Spies

Int. Cl.
CPC ...
B01D 61/14 (2006.01); B01D 61/18 (2006.01); B01D 61/58 (2006.01); B01D 69/02 (2006.01); B01D 71/36 (2006.01); G03F 7/32 (2006.01); G03F 7/42 (2006.01); H01L 21/67 (2006.01); B01D 3/14 (2006.01); B01D 65/02 (2006.01); B01D 69/08 (2006.01); B01D 69/12 (2006.01); C08F 236/20 (2006.01); C08J 9/36 (2006.01);
U.S. Cl.
CPC ...
B01D 61/58 (2013.01); B01D 3/145 (2013.01); B01D 61/145 (2013.01); B01D 61/147 (2013.01); B01D 61/18 (2013.01); B01D 65/02 (2013.01); B01D 69/02 (2013.01); B01D 69/08 (2013.01); B01D 69/12 (2013.01); B01D 71/36 (2013.01); C08F 236/20 (2013.01); C08J 9/365 (2013.01); H01L 21/67017 (2013.01); B01D 2311/25 (2013.01); B01D 2311/2623 (2013.01); B01D 2311/2669 (2013.01); B01D 2317/02 (2013.01); B01D 2321/16 (2013.01); B01D 2325/022 (2013.01); B01D 2325/36 (2013.01); B01D 2325/42 (2013.01); C08J 2327/18 (2013.01); C08J 2347/00 (2013.01); G03F 7/32 (2013.01); G03F 7/422 (2013.01);
Abstract

A filtering device is for obtaining a chemical liquid by purifying a liquid to be purified and has an inlet portion, an outlet portion, a filter A, a filter B different from the filter A, and a flow path extending from the inlet portion to the outlet portion, in which the filter A and the filter B are arranged in series between the inlet portion and the outlet portion and have, and the filter A is selected from the group consisting of predetermined filters A1, A2, and A3.

Find Patent Forward Citations

Quick Actions:

Kamimura, Tetsuya. (2023). Filter device, purification device, chemical solution production method (U.S. Patent No. 11745142). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11745142

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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