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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 12742757 B1

PDFFull Text
Date of Patent:
Sep. 22, 2026

Filed:

Mar. 30, 2022

Reducing member, analysis device, and analysis method

Applicant:

Bl Tec K.k., Osaka, JP;

Inventors:

Yorihiro Kumazawa, Tokyo, JP;

Miho Ohta, Tokyo, JP;

Takashi Nishimura, Tokyo, JP;

Assignee:

BL TEC K.K., Osaka, JP;

Attorneys:

Casimir Jones, S.C.

Robert A. Goetz

Primary Examiner:

Melvin C Mayes

Assistant Examiner:

Sophia Y Lyle

Int. Cl.
CPC ...
G01N 31/22 (2006.01); G01N 30/02 (2006.01); G01N 31/20 (2006.01);
U.S. Cl.
CPC ...
G01N 31/22 (2013.01); G01N 30/02 (2013.01); G01N 31/20 (2013.01); G01N 2030/027 (2013.01);
Abstract

Provided is an analysis device and an analysis method which, while solving the problem of column plugging, carries out continuous analysis of nitrogen in a sample without use of cadmium that causes environmental pollution. The problem is solved by an analysis method including: a sample introduction step of introducing a sample into a tube; a reduction step of reducing, to ammonium ions, nitrate ions and nitrite ions in the sample being transferred in the tube; and an analysis step of analyzing the ammonium ions in the sample which have been generated in the reduction step. In the reduction step, the nitrate ions and the nitrite ions in the sample are reduced by transferring the sample in a hollow tube in which at least an inner wall surface is made of zinc.

Find Patent Forward Citations

Kumazawa, Yorihiro. (2026). Reducing member, analysis device, and analysis method (U.S. Patent No. 12742757). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12742757

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

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