Polymeric optical waveguide film

Details Polymeric optical waveguide film Polymeric optical waveguide film

2008-05-13

2008-05-13

Pak, Sung (Department: 2874)

Optical waveguides

Planar optical waveguide

Reexamination Certificate

active

07373064

ABSTRACT:
The present invention provides a polymeric optical waveguide film whose core and clad are constituted from polymer materials and which is characterized in that a protective layer of a polymer material having resistance to solvent attack higher than that observed for the clad is arranged on at least one of the surface and back face of the waveguide film. The present invention thus permits the preparation of such a film, the clad of which is hardly damaged, which is excellent in the resistance to solvent attack and which never undergoes cracking even when it is bought into contact with a commonly used solvent such as acetone.

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International Search Report Issued in the Corresponding PCT/JP02/13667, Completed Feb. 17, 2003 and Mailed on Mar. 4, 2003.
Japanese Office Action corresponding to JP 2003-558560, dated Jun. 26, 2006.
Office Action Jun. 26, 2006 and issued in corresponding PCT/JP2002/13667, filed Dec. 26, 2002.

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