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:
Mar. 04, 2025
Filed:
Feb. 24, 2023
Taiyo Yuden Co., Ltd., Tokyo, JP;
Kotaro Mizuno, 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. In an outermost one of the internal electrode layers, a metal oxide containing a main component element constituting the internal electrode layers is provided on an outer main surface of the outermost one, and a formation depth of the metal oxide is 0.5 μm or more and 5.0 μm or less. A segregation layer containing a sub metal element different from the main component metal is present at an interface between at least one of the internal electrode layers other than the outermost one and one of the dielectric layers adjacent to the at least one of the internal electrode layers.