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:
May. 13, 2025
Filed:
Mar. 07, 2023
Taiyo Yuden Co., Ltd., Tokyo, JP;
Hidetoshi Masuda, Takasaki, JP;
TAIYO YUDEN CO., LTD., Tokyo, JP;
Abstract
A ceramic electronic device includes a multilayer chip in which dielectric layers and internal electrode layers are alternately stacked. The internal electrode layers include a main component element and a sub-element. The dielectric layers include a plurality of crystal grains. A segregation portion, in which the sub-element is segregated in shell portions and a grain boundary of the plurality of crystal grains and a sub-element concentration is 1.5 times or more as that in an entire of each of the dielectric layers, is formed. near an interface between each of the internal electrode layers and each of the dielectric layers, each of the internal electrode layers has a high concentration layer, in which the sub-element concentration is 1.5 times or more as that in an entire of each of the internal electrode layers.