US Patent 7856165 Optical waveguide film and manufacturing method thereof

Patent 7856165 was granted and assigned to Nitto Denko on December, 2010 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Nitto Denko

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

78561650

Patent Inventor Names

Takami Hikita0

Kunio Nagasaki0

Masayuki Hodono0

Date of Patent

December 21, 2010

Patent Application Number

122220360

Date Filed

July 31, 2008

Patent Primary Examiner

Charlie Peng

Patent abstract

An optical waveguide film includes a film including a clad layer and a core layer covered by the clad layer; and an adhesive layer formed at least on one surface of the film, having a rough structured surface having an arithmetic mean surface roughness of 0.1 to 2.0 μm, and having a storage modulus at 25° C. of 10 to 100 MPa obtained by dynamic viscoelastic measurement in torsion mode with a frequency of 1 Hz.