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:
Sep. 05, 2023
Filed:
Apr. 14, 2020
Applicant:
Ibiden Co., Ltd., Ogaki, JP;
Inventors:
Hiroaki Kodama, Ogaki, JP;
Kazuro Nishiwaki, Ogaki, JP;
Kazuhiko Kuranobu, Ogaki, JP;
Hiroaki Uno, Ogaki, JP;
Assignee:
IBIDEN CO., LTD., Ogaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 27/28 (2006.01); H01F 41/04 (2006.01); H01F 27/32 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2804 (2013.01); H01F 27/324 (2013.01); H01F 41/041 (2013.01);
Abstract
An inductor built-in substrate includes a core substrate having openings, a magnetic resin filled in the openings of the core substrate, and through-hole conductors formed through the core substrate such that each of the through-hole conductors includes a metal film. The magnetic resin has through holes formed through the magnetic resin such that the through-hole conductors include a group of through-hole conductors formed in the through holes formed through the magnetic resin, and the magnetic resin includes an iron oxide filler in an amount of 60% by weight or more.