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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 12669504 B1

PDFFull Text
Date of Patent:
Jun. 30, 2026

Filed:

Dec. 07, 2021

Method for detecting particulate substance by immunochromatography, and kit for the same

Applicants:

Dai Nippon Toryo Co., Ltd., Osaka, JP;

Shimadzu Corporation, Kyoto, JP;

Inventors:

Yuta Miyazawa, Utsunomiya, JP;

Hirotaka Fujimoto, Kyoto, JP;

Makoto Watanabe, Kyoto, JP;

Taka-Aki Sato, Kyoto, JP;

Assignees:

DAI NIPPON TORYO CO., LTD., Osaka, JP;

SHIMADZU CORPORATION, Kyoto, JP;

Attorney:

HAUPTMAN HAM, LLP

Primary Examiner:

Jennifer Wecker

Assistant Examiner:

Oyeleye Alexander Alabi

Int. Cl.
CPC ...
B01L 3/00 (2006.01); B01D 15/08 (2006.01); B01F 33/302 (2022.01); B01F 33/3033 (2022.01); B01J 8/00 (2006.01); B01J 8/02 (2006.01); B01J 20/285 (2006.01); B01J 20/287 (2006.01); B01J 20/32 (2006.01); B01L 7/00 (2006.01); B01L 9/00 (2006.01); B65G 47/80 (2006.01); B82Y 20/00 (2011.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); C08L 5/08 (2006.01); C12M 1/34 (2006.01); C12M 3/06 (2006.01); C12N 1/14 (2026.01); C12N 1/20 (2026.01); C12Q 1/02 (2006.01); C12Q 1/6806 (2018.01); C12Q 1/6844 (2018.01); C12Q 1/6848 (2018.01); C12Q 1/6851 (2018.01); C12Q 1/686 (2018.01); G01K 1/14 (2021.01); G01N 1/44 (2006.01); G01N 15/10 (2024.01); G01N 15/14 (2024.01); G01N 15/1433 (2024.01); G01N 21/01 (2006.01); G01N 21/03 (2006.01); G01N 21/05 (2006.01); G01N 21/29 (2006.01); G01N 21/33 (2006.01); G01N 21/35 (2014.01); G01N 21/65 (2006.01); G01N 21/75 (2006.01); G01N 21/77 (2006.01); G01N 27/07 (2006.01); G01N 27/28 (2006.01); G01N 27/416 (2006.01); G01N 30/02 (2006.01); G01N 30/60 (2006.01); G01N 30/72 (2006.01); G01N 31/10 (2006.01); G01N 31/12 (2006.01); G01N 33/543 (2006.01); G01N 33/557 (2006.01); G01N 33/564 (2006.01); G01N 33/574 (2006.01); G01N 33/575 (2026.01); G01N 33/57515 (2026.01); G01N 33/58 (2006.01); G01N 33/68 (2006.01); G01N 35/00 (2006.01); H05B 45/10 (2020.01);
U.S. Cl.
CPC ...
G01N 33/57515 (2026.01); G01N 33/54387 (2021.08); G01N 33/57585 (2026.01); G01N 2470/04 (2021.08);
Abstract

An object of the present invention is to provide a method for detecting particulate substances with a high degree of sensitivity, while suppressing the generation of non-specific signals. According to the present invention, the generation of non-specific signals in the background can be suppressed by blocking a membrane of a test strip which is used for immunochromatography with a blocking composition including a polymer-based blocking agent having, in its side chain, a substituent represented by the following formula: (wherein R, R, and Rare each independently a hydrogen atom, a Calkyl group, or a Chydroxyalkyl group; and n is an integer of 1 to 4), and having a weight average molecular weight (Mw) of 1×10to 1×10.

Find Patent Forward Citations

Miyazawa, Yuta. (2026). Method for detecting particulate substance by immunochromatography, and kit for the same (U.S. Patent No. 12669504). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12669504

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

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