Stock material or miscellaneous articles – Composite – Of addition polymer from unsaturated monomers
Reexamination Certificate
2003-12-03
2009-11-17
Ahmed, Sheeba (Department: 1794)
Stock material or miscellaneous articles
Composite
Of addition polymer from unsaturated monomers
C428S500000
Reexamination Certificate
active
07618716
ABSTRACT:
A wavelength plate, which comprises a cyclic olefin based resin-containing material and is obtained by combining plural sheets of a retardation film that provides a specific retardation. The resulting wavelength plate (retardation plate) has the same polarizing characteristics against monochromic lights having a different wavelength and can be used as a wavelength plate for optical information recording and reproducing devices.
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Hirono Tatsuya
Sekiguchi Masayuki
Ahmed Sheeba
JSR Corporation
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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