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:
Jul. 01, 2025

Filed:

Mar. 17, 2022
Applicant:

Tdk Corporation, Tokyo, JP;

Inventors:

Akihiko Oide, Tokyo, JP;

Makoto Yoshino, Tokyo, JP;

Tomoki Okada, Yurihonjo, JP;

Seiji Osada, Yurihonjo, JP;

Yuuki Okazaki, Yurihonjo, JP;

Takeshi Sasaki, Yurihonjo, JP;

Mitsuru Ito, Yurihonjo, JP;

Kenta Sasaki, Yurihonjo, JP;

Kazuhiro Ebina, Tokyo, JP;

Takashi Abe, Yurihonjo, JP;

Hiroshi Ono, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 17/00 (2006.01); H01F 27/28 (2006.01); H01F 27/29 (2006.01);
U.S. Cl.
CPC ...
H01F 17/0006 (2013.01); H01F 27/2847 (2013.01); H01F 27/292 (2013.01); H01F 2017/0066 (2013.01); H01F 2017/0073 (2013.01);
Abstract

In the multi-layer inductor, the internal electrode includes the auxiliary conductor, and the auxiliary conductor is jointed to the external electrode at the end face. Therefore, when a defect occurs in a part of the through conductors, a current flows through the remaining through conductor(s) and a current also flows through the auxiliary conductor. Therefore, overheating at the joint surface between the remaining through conductor(s) and the external electrode can be prevented, and cutting and/or fusion starting from the joint surface can be prevented.


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