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. 10, 2013
Filed:
Mar. 26, 2010
Naoyuki Kondou, Sakai, JP;
Junko Yashiro, Hirakata, JP;
Shinji Hashimoto, Kadoma, JP;
Tohru Nakashiba, Osaka, JP;
Naoyuki Kondou, Sakai, JP;
Junko Yashiro, Hirakata, JP;
Shinji Hashimoto, Kadoma, JP;
Tohru Nakashiba, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An optical waveguide of excellent flex resistance which is to be formed on the surface of a flexible printed circuit is obtained by using an epoxy resin composition includes (A) a liquid epoxy compound, (B) a solid epoxy compound, and (C) a cationic curing initiator, wherein as the liquid epoxy compound (A), (A1) a liquid epoxy compound represented by general formula (I) below is included: (where Rand Rare each independently a hydrogen atom or a methyl group; Rto Rare each independently a hydrogen atom, a methyl group, a chlorine atom or a bromine atom; Ris an alkyleneoxy group or alkylene group of 1 to 15 carbons; p is 0 or 1; q is 1 to 25; r and s are 0 when p is 0, and are 1 when p is 1; and n is a positive integer which averages from 1 to 5).