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:
Feb. 22, 2022
Filed:
Jan. 16, 2020
Taiyo Yuden Co., Ltd., Tokyo, JP;
TAIYO YUDEN CO., LTD., Tokyo, JP;
Abstract
A multi-layer ceramic capacitor includes a ceramic body and external electrodes. The ceramic body includes ceramic layers laminated in a first direction, first and second internal electrodes between the ceramic layers, a facing portion in which the internal electrodes face in the first direction, and a cover that covers the facing portion in the first direction. The facing portion includes a first region including at least one element of manganese, a rare-earth element, or magnesium and having a flat distribution of a concentration of the element along the first direction, and a second region disposed between the cover and the first region and having an increasing concentration of the element from the first region toward the cover. The ceramic layers include a capacitance forming layer between the first and second internal electrodes, and a dummy layer between the first or second internal electrodes and across the first and second regions.