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. 23, 2012
Filed:
Dec. 10, 2004
Seiji Yamamoto, Setagaya-ku, JP;
Tadasu Yotsuyanagi, Yokohama, JP;
Nagayoshi Ichikawa, Kawasaki, JP;
Tetsuo Oosato, Shinjuku-ku, JP;
Masato Okamura, Yokohama, JP;
Junichi Takagi, Yokohama, JP;
Kenji Yamazaki, Yokohama, JP;
Shunichi Suzuki, Chiyoda-ku, JP;
Kenro Takamori, Chiyoda-ku, JP;
Mitsuru Sambongi, Chiyoda-ku, JP;
Takeshi Shibano, Chiyoda-ku, JP;
Takashi Hirano, Chiyoda-ku, JP;
Yuichi Fukaya, Chiyoda-ku, JP;
Seiji Yamamoto, Setagaya-ku, JP;
Tadasu Yotsuyanagi, Yokohama, JP;
Nagayoshi Ichikawa, Kawasaki, JP;
Tetsuo Oosato, Shinjuku-ku, JP;
Masato Okamura, Yokohama, JP;
Junichi Takagi, Yokohama, JP;
Kenji Yamazaki, Yokohama, JP;
Shunichi Suzuki, Chiyoda-ku, JP;
Kenro Takamori, Chiyoda-ku, JP;
Mitsuru Sambongi, Chiyoda-ku, JP;
Takeshi Shibano, Chiyoda-ku, JP;
Takashi Hirano, Chiyoda-ku, JP;
Yuichi Fukaya, Chiyoda-ku, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Ishikawajima-Harima Heavy Industries Co., Ltd., Tokyo, JP;
The Tokyo Electric Power Company, Incorporated, Tokyo, JP;
Abstract
In a method of reducing corrosion of a material constituting a nuclear reactor structure, an electrochemical corrosion potential is controlled by injecting a solution or a suspension containing a substance generating an excitation current by an action of at least one of radiation, light, and heat existing in a nuclear reactor, or a metal or a metallic compound forming the substance generating the excitation current under the condition in the nuclear reactor to allow the substance generating the excitation current to adhere to the surface of the nuclear reactor structural material, and by injecting hydrogen in cooling water of the nuclear reactor while controlling the hydrogen concentration in a feed water.