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:
Oct. 08, 1991
Filed:
Oct. 09, 1990
Applicant:
Inventors:
Yukari Washio, Kyoto, JP;
Nobuhiro Takeishi, Hirakata, JP;
Hideki Shimamoto, Tsuzuki, JP;
Keiji Mori, Joyo, JP;
Noriki Ushio, Joyo, JP;
Katsuji Shiono, Ohtsu, JP;
Takaaki Kishi, Uji, JP;
Hideo Samura, Ohta, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G / ;
U.S. Cl.
CPC ...
361527 ; 252 622 ;
Abstract
An electrolyte for use in electrolytic capacitors is provided. The electrolyte comprises a specified quaternary ammonium salt of a boric acid complex as a solute. A capacitor in which the electrolyte is used displays stable electrical characteristics at high temperatures as well as high sparking voltage and long life.