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:
Jun. 12, 2012
Filed:
Mar. 13, 2008
Tomoaki Shibata, Ibaraki, JP;
Atsushi Takahashi, Ibaraki, JP;
Keisuke Ookubo, Ibaraki, JP;
Tetsurou Iwakura, Ibaraki, JP;
Tomoaki Shibata, Ibaraki, JP;
Atsushi Takahashi, Ibaraki, JP;
Keisuke Ookubo, Ibaraki, JP;
Tetsurou Iwakura, Ibaraki, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
The present invention provides an adhesive composition for an optical waveguide which comprises (a) an epoxy resin, (b) a curing agent and (c) a high molecular compound, in which a total light transmittance and a light transmittance in a wavelength of 700 to 1600 nm in a cured matter of the adhesive composition are 80% or more and in which a transparency is consistent with a heat resistance, an adhesive film for an optical waveguide prepared by forming the above adhesive composition into a film form, an adhesive sheet for an optical waveguide comprising the above adhesive composition and a supporting base material and an optical device produced by using them.