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:
Feb. 15, 2011
Filed:
Mar. 25, 2009
Hideyuki Hosokawa, Hitachinaka, JP;
Makoto Nagase, Mito, JP;
Kazushige Ishida, Hitachi, JP;
Yoichi Wada, Hitachinaka, JP;
Naoshi Usui, Tsuchiura, JP;
Motohiro Aizawa, Hitachi, JP;
Motomasa Fuse, Hitachinaka, JP;
Hideyuki Hosokawa, Hitachinaka, JP;
Makoto Nagase, Mito, JP;
Kazushige Ishida, Hitachi, JP;
Yoichi Wada, Hitachinaka, JP;
Naoshi Usui, Tsuchiura, JP;
Motohiro Aizawa, Hitachi, JP;
Motomasa Fuse, Hitachinaka, JP;
Hitachi-GE Nuclear Energy, Ltd., Hitachi-shi, JP;
Abstract
A method of suppressing deposition of radionuclides on components of a nuclear power plant comprises forming a ferrite film by contacting a first chemical including iron (II) ions, a second chemical for oxidizing the iron (II) ions to iron (III) ions, and a third chemical for adjusting the pH of a processing solution containing a mixture of the first and second chemicals to be 5.5 to 9.0 with the metal member surface in a time period from a finishing stage in decontamination step of removing contaminants formed on the surface of metal member composing the nuclear power plant, and suppressing deposition of radionuclides on the metal member by the ferrite film.