Stock material or miscellaneous articles – Composite – Of polycarbonate
Reexamination Certificate
2007-07-24
2007-07-24
Chen, Vivian (Department: 1773)
Stock material or miscellaneous articles
Composite
Of polycarbonate
C428S323000, C428S325000, C428S446000, C428S451000, C428S452000, C428S454000, C428S697000, C428S701000, C428S702000, C349S117000, C349S118000, C359S494010, C359S506000
Reexamination Certificate
active
10435035
ABSTRACT:
The objective of the present invention is to provide a laminated phase retarder film that is superior in evenness, exhibits a biaxial optical property as a whole, and makes it possible to set the biaxial optical property over a wide range. This object is achieved by a laminated phase retarder film comprising a transparent resin film as a substrate and at least one coat layer having a refractive-index anisotropy laminated on at least one surface of the substrate, wherein a in-plane retardation value (R0) is not less than 20 nm, a retardation value (R′) in the film-thickness direction, which is calculated from a retardation value (R40) measured by inclining by 40 degrees around the slow axis of the film and the in-plane retardation value (R0), is greater than 40 nm.
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English translation of Chinese Office Action dated Jan. 4, 2005.
English translation of Chinese Office Action dated Sep. 6, 2005.
English translation of Japanese Office Action mailed Aug. 1, 2006.
Chen Vivian
Sughrue & Mion, PLLC
Sumitomo Chemical Company Limited
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