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.:
Date of Patent:
Oct. 14, 2014
Filed:
Aug. 29, 2011
Applicants:
Osamu Shibasaki, Yokohama, JP;
Masato Okamura, Yokohama, JP;
Koji Negishi, Yokohama, JP;
Seiji Yamamoto, Tokyo, JP;
Toyoaki Miyazaki, Yokohama, JP;
Inventors:
Osamu Shibasaki, Yokohama, JP;
Masato Okamura, Yokohama, JP;
Koji Negishi, Yokohama, JP;
Seiji Yamamoto, Tokyo, JP;
Toyoaki Miyazaki, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B05D 7/22 (2006.01); G21C 17/022 (2006.01); C23C 8/02 (2006.01); C23F 11/18 (2006.01); C23C 8/18 (2006.01); C23C 8/14 (2006.01); C09D 5/08 (2006.01);
U.S. Cl.
CPC ...
G21C 17/0225 (2013.01); C23C 8/02 (2013.01); C23F 11/185 (2013.01); C23C 8/18 (2013.01); C23C 8/14 (2013.01);
Abstract
Provided is a method for monitoring corrosion in a power plant, including: forming a film with a composition of M1FeO(M1 is a trivalent or tetravalent metal) or M2FeO(M2 is a divalent metal) on the inner wall surface of an apparatus of the power plant; and maintaining the film stably by controlling the amount of introduction of oxygen into the apparatus commensurate with a temperature in the apparatus.