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:
Apr. 25, 2023
Filed:
Apr. 05, 2019
3m Innovative Properties Company, St. Paul, MN (US);
Mohsen Salehi, Woodbury, MN (US);
Stephen J. Etzkorn, Woodbury, MN (US);
Jaewon Kim, Woodbury, MN (US);
Brett J. Sitter, Cottage Grove, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A gradient permittivity film comprises (a) a first permittivity layer comprising a first continuous matrix of a first material having a first relative permittivity (ε) and a second component having a second relative permittivity (ε) dispersed in the first continuous matrix, the first permittivity layer having a first effective layer relative permittivity (ε) and a thickness (T); and (b) a second permittivity layer having a second effective layer relative permittivity (ε) and a thickness (T) disposed on the first permittivity layer T=0.8(t) to 1.2(t), where t=(I); T=0.8(t) to 1.2 (T), where T=(II).