Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2006-11-01
2010-12-07
Nguyen, Khanh (Department: 1791)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S548000, C524S553000, C252S301350, C385S143000, C385S145000, C264S001270
Reexamination Certificate
active
07847017
ABSTRACT:
The present invention has an object to provide a photosensitive resin composition for optical waveguide formation, which has low transmission loss and can form a waveguide pattern with high shape accuracy at low cost; an optical waveguide; and a method for producing an optical waveguide. The present invention provides a photosensitive resin composition for optical waveguide formation comprising at least: a polymer containing at least a (meth)acrylate structure unit having an epoxy structure, and a (meth)acrylate structure unit having a lactone structure and/or a vinyl monomer structure unit having an aromatic structure; and a photoacid generator, of which one or both of a core layer and a cladding layer are formed of a cured product.
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Maeda Katsumi
Nakano Kaichiro
Aziz Keith T
NEC Corporation
Nguyen Khanh
Sughrue & Mion, PLLC
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