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:
Jul. 22, 2014
Filed:
Sep. 18, 2009
Toshihiko Takasaki, Ibaraki, JP;
Masatoshi Yamaguchi, Ibaraki, JP;
Toshihiro Kuroda, Ibaraki, JP;
Tatsuya Makino, Ibaraki, JP;
Masami Ochiai, Ibaraki, JP;
Atsushi Takahashi, Ibaraki, JP;
Toshihiko Takasaki, Ibaraki, JP;
Masatoshi Yamaguchi, Ibaraki, JP;
Toshihiro Kuroda, Ibaraki, JP;
Tatsuya Makino, Ibaraki, JP;
Masami Ochiai, Ibaraki, JP;
Atsushi Takahashi, Ibaraki, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
An optical waveguide contains a lower cladding layer, a patterned core layer, an upper cladding layer and an upper low elasticity layer, which are laminated in this order, in which a film formed by curing a resin composition for forming the upper low elasticity layer has a tensile elastic modulus of from 1 to 2,000 MPa at 25° C., and a cured film having a thickness of 110 μm formed by curing a resin composition for forming the upper cladding layer has a total light transmittance of 90% or more. An optical waveguide that has good flexural resistance and good optical characteristics can be provided.