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:
Aug. 08, 2023
Filed:
Mar. 19, 2020
Mitsubishi Paper Mills Limited, Tokyo, JP;
Keisuke Oyama, Tokyo, JP;
Tomohiro Sato, Tokyo, JP;
MITSUBISHI PAPER MILLS LIMITED, Tokyo, JP;
Abstract
An object of the present invention is to provide a solid electrolytic capacitor separator configured such that thickness non-uniformity is reduced, internal short-circuit is less likely to occur, an impedance is not too high, and a high heat resistance is exhibited. In a solid electrolytic capacitor separator including non-woven fabric, the non-woven fabric contains fibrillated heat-resistant fibers and synthetic short fibers as essential components, the fiber length of the fibrillated heat-resistant fiber is 0.30 to 0.75 mm, and the percentage of fibrillated heat-resistant fibers with a fiber width of 12 to 40 μm is equal to or higher than 55% and lower than 75%.