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:
Aug. 25, 2015
Filed:
Mar. 11, 2011
Jun Sasaki, Miyagi, JP;
Akihiro Horii, Miyagi, JP;
Naoto Sugawara, Miyagi, JP;
Kanako Hashimoto, Miyagi, JP;
Takeshi Kondou, Miyagi, JP;
Makoto Aoki, Miyagi, JP;
Jun Sasaki, Miyagi, JP;
Akihiro Horii, Miyagi, JP;
Naoto Sugawara, Miyagi, JP;
Kanako Hashimoto, Miyagi, JP;
Takeshi Kondou, Miyagi, JP;
Makoto Aoki, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
A diffusion sheet includes a light-transmissive base member, a plurality of structures, and a flattened portion. The light-transmissive base member has a first main surface and a second main surface. The plurality of structures have convex shapes, which are randomly formed on the first main surface. The flattened portion is formed among the plurality of structures on the first main surface and has a surface roughness (Ra) equal to or lower than 0.6 μm.