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.

Date of Patent:
Dec. 24, 2024

Filed:

Jun. 08, 2022
Applicant:

Taiyo Yuden Co., Ltd., Tokyo, JP;

Inventors:

Kyosuke Shimazaki, Tokyo, JP;

Takashi Asai, Tokyo, JP;

Takayuki Hattori, Tokyo, JP;

Keisuke Ishii, Tokyo, JP;

Shin Nishiura, Tokyo, JP;

Yoshimasa Kitamura, Tokyo, JP;

Hirotaka Ohno, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/30 (2006.01); H01G 4/012 (2006.01); H01G 4/12 (2006.01);
U.S. Cl.
CPC ...
H01G 4/30 (2013.01); H01G 4/012 (2013.01); H01G 4/12 (2013.01);
Abstract

A ceramic electronic device includes a multilayer structure having a substantially rectangular parallelepiped shape, a first cover layer, and a second cover layer that is provided on a second end of the multilayer structure in the stacking direction, a main component of the second cover layer being ceramic, a porosity of the second cover layer being higher than that of the first cover layer. Q=(A+B)/2C×100(%) is 0.5% or more and 1.6% or less, when, at an interface of the second cover layer on a side of the first cover layer, two heights of curvature portions of both ends of the interface are respectively a height A and a height B, and a shortest height from the first cover layer to the second cover layer is a height C.


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