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:
Mar. 24, 2015
Filed:
Mar. 09, 2010
Hirotsugu Kishimoto, Toyonaka, JP;
Shinji Hashimoto, Kadoma, JP;
Hirotsugu Kishimoto, Toyonaka, JP;
Shinji Hashimoto, Kadoma, JP;
Panasonic Intellectual Property Management Co., Ltd., Osaka-shi, JP;
Abstract
This invention relates to a transparent film including a glass fiber substrate made of glass fibers and impregnated with a resin composition in which a high refractive resin (a transparent resin) having refractive index higher than the glass fiber is mixed with a low refractive resin (a second transparent resin) having a refractive index lower than the glass fiber to have a resultant refractive index approximate to that of the glass fiber when cured, wherein the high refractive resin has a 3 or more-functional epoxy resin expressed by the following formula: wherein Ris a hydrogen atom or methyl group, Ris a bivalent organic group, and Rto Rare respectively ones selected from a group consisting of a hydrogen atom, a substituent group, and a molecular chain containing epoxy group.