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:
Oct. 19, 2004
Filed:
Jul. 24, 2001
Tatsuo Uchida, Miyagi 983-0014, JP;
Hiroyuki Takemoto, Himeji, JP;
Other;
Abstract
A transmittable light-scattering sheet (a transmitting type light-scattering sheet) of the present invention comprises a plurality of layers, each having a bicontinuous structure composed of a plurality of polymers. The layers differ from each other in average period size of the bicontinuous structure. The sheet may comprise, for example, a first layer having a bicontinuous structure (e.g., the average period size of the bicontinuous structure of 1.5 to 4 &mgr;m) and a second layer each having a bicontinuous structure (e.g., the larger average period size of the bicontinuous structure than that of the first layer by 0.5 to 8 &mgr;m). In the sheet, the first layer may be next to the second layer. The ratio of the period size of the first layer to that of the second layer may be the first layer/the second layer=1.3/1 to 4/1. Such a sheet can impart a directionality to a reflected light.