Optical waveguides – Optical fiber waveguide with cladding
Reexamination Certificate
2008-05-13
2008-05-13
Healy, Brian M. (Department: 2883)
Optical waveguides
Optical fiber waveguide with cladding
C385S141000, C528S027000
Reexamination Certificate
active
11363177
ABSTRACT:
An optical waveguide is produced by using a polymer obtained by using a silsesquioxane derivative represented by the formula (1-0).In the formula (1-0), R0independently representshydrogen,alkyl having 1 to 40 carbon atoms in which optional hydrogen may be replaced by fluorine and optional —CH2— may optionally be replaced by —O—, —CH═CH—, cycloalkylene, or cycloalkenylene,aryl in which optional hydrogen may optionally be replaced by halogen, or with alkyl having 1 to 20 carbon atoms whereby optional hydrogen may be replaced by fluorine and optional —CH2— may be replaced by —O—, —CH═CH—, cycloalkylene, or phenylene, orarylalkyl in which optional hydrogen in the aryl may be replaced by halogen or alkyl having 1 to 20 carbon atoms, and hydrogen in the alkylene of the arylalkyl may be replaced by fluorine, and optional —CH2— in the alkylene of the arylalkyl may be replaced by —O—, —CH═CH—, or cycloalkylene, andY is a group represented by the formula (a) or (b):
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Ito Kenya
Ootake Nobumasa
Ootsuka Nobuyuki
Satake Hideshi
Yamamoto Yasuhiro
Chisso Corporation
Healy Brian M.
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