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:
Oct. 21, 2025
Filed:
Oct. 15, 2020
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Akira Irifune, Fukushima, JP;
Shun Yamaguchi, Fukushima, JP;
Fuminori Satou, Fukushima, JP;
Tatsuya Arisawa, Fukushima, JP;
Mitsuyoshi Nishino, Fukushima, JP;
Abstract
A metal-clad laminate includes an insulating layer that contains a cured product of a resin composition containing a polymer having a structural unit represented by Formula (1) in a molecule and a metal foil that is laminated on the insulating layer and is a metal foil in which a nickel element amount on a surface on a side in contact with the insulating layer and a nickel element amount on the surface when the surface is sputtered for 1 minute at 3 nm/min in terms of SiOare each 4.5 at % or less with respect to the total element amount on each surface. In Formula (1), Z represents an arylene group, R-Reach independently represent a hydrogen atom or an alkyl group, and R-Reach independently represent a hydrogen atom or an alkyl group having 1-6 carbon atoms.