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:
Jul. 19, 2016
Filed:
Nov. 30, 2011
Applicants:
Fukutaro Kato, Chiyoda-ku, JP;
Eiichi Nagao, Chiyoda-ku, JP;
Tsuyoshi Amimoto, Chiyoda-ku, JP;
Satoru Toyama, Chiyoda-ku, JP;
Kota Mizuno, Chiyoda-ku, JP;
Inventors:
Fukutaro Kato, Chiyoda-ku, JP;
Eiichi Nagao, Chiyoda-ku, JP;
Tsuyoshi Amimoto, Chiyoda-ku, JP;
Satoru Toyama, Chiyoda-ku, JP;
Kota Mizuno, Chiyoda-ku, JP;
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/28 (2006.01); H01B 3/20 (2006.01); H01F 27/12 (2006.01);
U.S. Cl.
CPC ...
H01B 3/20 (2013.01); G01N 33/2858 (2013.01); G01N 33/2835 (2013.01); H01F 27/12 (2013.01); Y10T 436/12 (2015.01); Y10T 436/18 (2015.01);
Abstract
The present invention is a method for preventing copper sulfide generation in oil-filled electrical equipment having an inhibitor of copper sulfide generation in insulating oil, and the method is characterized in monitoring characteristics of the insulating oil and performing re-addition of the inhibitor at an appropriate moment in accordance with a result of the monitoring.