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:
Nov. 14, 2023
Filed:
Oct. 21, 2020
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Akihiro Yamauchi, Osaka, JP;
Eiichiro Saito, Osaka, JP;
Nobuo Shibata, Osaka, JP;
Kouichi Aoki, Hyogo, JP;
Abstract
A resin composition contains a thermosetting resin (A) and an inorganic filler (B). The inorganic filler (B) includes: a first filler (B); and a second filler (B) of a nanometer scale having a smaller particle size than the first filler (B). The first filler (B) includes an anhydrous magnesium carbonate filler (b) and an alumina filler (b). The proportion of the first filler (B) relative to a total solid content in the resin composition is equal to or greater than 50% by volume and equal to or less than 90% by volume. The proportion of the second filler (B) relative to the total solid content in the resin composition is equal to or greater than 0.1% by volume and equal to or less than 2.0% by volume.