The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2007
Filed:
Apr. 22, 2003
Akihiro Nishida, Ibaraki, JP;
Shuuji Yano, Ibaraki, JP;
Hiroe Maeda, Toyohashi, JP;
Takashi Kondou, Ibaraki, JP;
Takezou Hatanaka, Ibaraki, JP;
Takuya Matsunaga, Kearny, NJ (US);
Akihiro Nishida, Ibaraki, JP;
Shuuji Yano, Ibaraki, JP;
Hiroe Maeda, Toyohashi, JP;
Takashi Kondou, Ibaraki, JP;
Takezou Hatanaka, Ibaraki, JP;
Takuya Matsunaga, Kearny, NJ (US);
Nitto Denko Corporation, Osaka, JP;
Abstract
A light-diffusing sheet includes a transparent film and a light-diffusing layer formed on at least one side of the transparent film. The transparent film contains a thermoplastic resin having a substituted and/or non-substituted imido group in a side chain, and a thermoplastic resin having a substituted and/or non-substituted phenyl group and nitrile group in a side chain, and the surface with the minute unevenness has an average height-depth spacing (Sm): Sm≦80 μm, a center-line average surface roughness (Ra): Ra≦0.25 μm and a ten-point average surface roughness (Rz): Rz≦9Ra.