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:
Aug. 26, 2025

Filed:

Oct. 28, 2019
Applicant:

Tokyo Gas Co., Ltd., Tokyo, JP;

Inventors:

Kazuo Nakamura, Tokyo, JP;

Takahiro Ide, Tokyo, JP;

Tatsuya Nakajima, Tokyo, JP;

Toru Hatae, Tokyo, JP;

Tatsuki Dohkoh, Tokyo, JP;

Marie Shirai, Tokyo, JP;

Shunnosuke Akabane, Tokyo, JP;

Assignee:

TOKYO GAS CO., LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/0668 (2016.01); C01B 3/38 (2006.01); C01B 3/56 (2006.01); H01M 8/04119 (2016.01); H01M 8/04701 (2016.01); H01M 8/04746 (2016.01); H01M 8/0612 (2016.01); H01M 8/0662 (2016.01); H01M 8/1231 (2016.01); H01M 8/2425 (2016.01); H01M 8/249 (2016.01); H01M 8/12 (2016.01);
U.S. Cl.
CPC ...
H01M 8/0668 (2013.01); C01B 3/38 (2013.01); C01B 3/56 (2013.01); H01M 8/04164 (2013.01); H01M 8/04701 (2013.01); H01M 8/04716 (2013.01); H01M 8/04738 (2013.01); H01M 8/04746 (2013.01); H01M 8/04761 (2013.01); H01M 8/04776 (2013.01); H01M 8/04783 (2013.01); H01M 8/0618 (2013.01); H01M 8/0662 (2013.01); H01M 8/1231 (2016.02); H01M 8/2425 (2013.01); H01M 8/249 (2013.01); C01B 2203/0233 (2013.01); C01B 2203/066 (2013.01); C01B 2203/067 (2013.01); C01B 2203/0811 (2013.01); C01B 2203/0838 (2013.01); C01B 2203/1058 (2013.01); C01B 2203/1064 (2013.01); H01M 2008/1293 (2013.01);
Abstract

A fuel cell system including a fuel cell, an off-gas reprocessing unit that is provided downstream of the fuel cell and that at least partially removes at least one of steam or carbon dioxide from an off-gas discharged from the fuel cell, a flow passage that is provided downstream of the off-gas reprocessing unit and that allows a reprocessed off-gas discharged from the off-gas reprocessing unit to flow therethrough, and a controlling unit that modulates the reaction constant Kof a reaction A with respect to the reprocessed off-gas discharged from the off-gas reprocessing unit, to 1.22 or more.


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