Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Syouichi Sugitani0
Kazuyuki Shimizu0
Date of Patent
July 6, 2010
Patent Application Number
11385771
Date Filed
March 22, 2006
Patent Primary Examiner
Patent abstract
An optical film comprising a cycloolefin resin or a cellulose ester resin, wherein (a) at least one of edges of the optical film is slit; (b) an average surface roughness Ra specified in JISB0601-2001 of a cross-section of the optical film formed by slitting is 0.05 to 0.9 μm; and (c) a width of the optical film is 1400 mm or more.
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