An electrolytic capacitor comprising a capacitor element and an electrolyte impregnated to the element, wherein the electrolyte contains a fluorocarboxylic acid or its salt as a solute dissolved in an organic solvent.

Claims

13 · 1 independent · depth 4

13 granted claims

›1.independentAn electrolytic capacitor comprising a capacitor element and an electrolyte impregnated to the element, wherein the electrolyte contains a fluorocarbo…+12

›2.↳ 1The electrolytic capacitor according to claim 1, wherein the fluorocarboxylic acid is a perfluoro monobasic or dibasic acid having from 1 to 12 carbon…d2

›3.↳ 1The electrolytic capacitor according to claim 1, wherein the fluorocarboxylic acid salt is an alkali metal salt, an amine salt, an ammonium salt, or a…d2

›4.↳ 1The electrolytic capacitor according to claim 1, wherein the electrolyte contains a hydrocarbon caboxylic acid or its salt as an additional solute.d2+4

›9.↳ 1The electrolytic capacitor according to claim 1, wherein the organic solvent is an organic polar solvent.d2+1

›11.↳ 1The electrolytic capacitor according to claim 1, wherein the content of the fluorocarboxylic acid or its salt in the electrolyte is from 1 to 70% by w…d2

›12.↳ 1The electrolytic capacitor according to claim 1, wherein the electrolyte has a pH of from 4 to 8.d2

›13.↳ 1The electrolytic capacitor according to claim 1, wherein the content of water in the electrolyte is from 0.5 to 20% by weight.d2

Classifications

2 codes

USPC · US Patent Classification

361/433252/62.2

Claim changes

Soon

Coming soonHow the claims changed between publication and grant

See which claims were amended, added or cancelled during examination, with every added and removed word marked.

AmendedAddedCancelledUnchanged

The published claims of this patent are not paired with the granted ones in what we hold.

File wrapper

Pendency

0.8 y

284 days filing → grant

Office actions

on the grant's record

Examiner

Donald A. Griffin

art unit —

Law firm

Law firm · Log in to unlock

Citations: 4 back · 0 forward

Term & fees

See the term timeline — pendency span, in-force span, the maintenance fees paid and both computed expiry dates.

Validity challenges

See the validity challenges on record — reexaminations, IPRs and PGRs, with their institution decisions and outcomes.

Citations

See every patent this one cites and every patent that cites it back — publication, assignee, and how each one was found.