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:
Sep. 25, 1990
Filed:
Mar. 27, 1989
Tadashi Kimura, Yawata, JP;
Tanejiro Ikeda, Nara, JP;
Hisaaki Tachihara, Matsue, JP;
Kunio Oshima, Matsue, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A film capacitor having metallic layer electrodes, organic dielectric films interposed between the metallic layer electrodes, and a pair of end surface electrodes disposed at the opposite ends of the capacitor and alternately connected to the metallic layer electrodes. The end surfaces of the dielectric films adjacent to each other and located at the opposite end surfaces of the capacitor are formed with irregularities. This capacitor is manufactured by a method including: the steps of preparing a lamination or roll of a plurality of electrodes and organic dielectric films interposed between the electrodes, selectively removing portions of the dielectric films at the electrode-lead-out-end sides of the roll or lamination where end surfaces of the dielectric films are flush with those of the electrodes by bringing surfaces of the roll or lamination at the electrode-lead-out-end sides in contact with a gas having at least a component reactive with the organic dielectric; and forming end-surface electrodes at the electrode-lead-out-end sides.