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:
Dec. 25, 2018
Filed:
Feb. 17, 2016
Applicant:
Fujitsu Ten Limited, Hyogo-ku, JP;
Inventors:
Shota Kawanaka, Kobe, JP;
Sho Tamura, Kobe, JP;
Assignee:
FUJITSU TEN LIMITED, Kobe-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/14 (2006.01); G01R 31/00 (2006.01); G01R 31/36 (2006.01); G01R 27/02 (2006.01);
U.S. Cl.
CPC ...
G01R 31/006 (2013.01); G01R 31/362 (2013.01); G01R 31/3606 (2013.01); G01R 27/025 (2013.01); G01R 31/3658 (2013.01);
Abstract
A deterioration detecting apparatus includes: a capacitor that is connected to an insulated electric power source, and is charged and discharged; a voltage detecting unit that detects a voltage of the capacitor; and a deterioration detecting unit that detects a deterioration in insulating resistors of the electric power source on the basis of the voltage of the capacitor detected by the voltage detecting unit, in which the voltage detecting unit can detect the charged negative voltage of the capacitor.