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.:

US 7315441 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 01, 2008

Filed:

Nov. 26, 2003
Applicants:

Hiroshi Kanno, Kodaira, JP;

Masashi Otsuki, Kodaira, JP;

Inventors:

Hiroshi Kanno, Kodaira, JP;

Masashi Otsuki, Kodaira, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention relates to an electrolytic capacitor having a flame retardant electrolyte and a high safety even if the electrolyte leaks out to outside, and more particularly to an electrolytic capacitor comprising a positive electrode provided with an insulating oxide layer formed through anodic oxidation, a negative electrode, a separator and an electrolyte containing a solute in an organic solvent, characterized in that the electrolyte contains not less than 3% by mass of a phosphazene derivative and/or an isomer of a phosphazene derivative.


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