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:
Nov. 15, 2016
Filed:
Dec. 18, 2012
Nichicon Corporation, Kyoto-shi, JP;
Mitsuru Yoneda, Kyoto, JP;
Naoya Maruyama, Kyoto, JP;
NICHICON CORPORATION, Kyoto, JP;
Abstract
The present application provides a capacitor in which the operability of the pressure valve, and valve deformation during operation, can be stabilized. A capacitor () comprising: a capacitor element () obtained by overlapping and winding a positive electrode foil () and a negative electrode foil () with an electrolytic paper () interposed therebetween, and impregnating the foils with an electrolytic solution; a bottomed cylindrical outer case () for housing the capacitor element (); and a sealing body () for sealing the opening of the outer case (). The inner bottom part of the outer case () has formed thereon a recess () having: a first inclined surface () spreading in a radial manner from the center region of the inner bottom part, the center region being the deepest part; and a second inclined surface () which is continuous from the outer edge of the first inclined surface () and which is steeper than the first inclined surface (). A weakened section is formed in the recess, and a groove is formed on the outside of the inner bottom part of the outer case.