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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.:

US 9199403 B1

PDFFull Text
Date of Patent:
Dec. 01, 2015

Filed:

Mar. 03, 2009

Laminated film

Applicants:

Takayuki Uto, Otsu, JP;

Syunichi Osada, Otsu, JP;

Inventors:

Takayuki Uto, Otsu, JP;

Syunichi Osada, Otsu, JP;

Assignee:

TORAY INDUSTRIES, INC., Tokyo, JP;

Attorney:

RatnerPrestia

Primary Examiner:

Prashant J Khatri

Int. Cl.
CPC ...
B32B 5/00 (2006.01); B29C 47/06 (2006.01); G02B 6/124 (2006.01); B29C 47/30 (2006.01); G02B 6/122 (2006.01); B29C 47/14 (2006.01); G02B 5/02 (2006.01); B29C 47/00 (2006.01); B29K 25/00 (2006.01); B29K 33/00 (2006.01); B29K 67/00 (2006.01); B29K 69/00 (2006.01); G02F 1/13363 (2006.01);
U.S. Cl.
CPC ...
B29C 47/30 (2013.01); B29C 47/0021 (2013.01); B29C 47/062 (2013.01); B29C 47/065 (2013.01); B29C 47/145 (2013.01); G02B 5/0242 (2013.01); G02B 6/124 (2013.01); G02B 6/1221 (2013.01); B29C 47/0019 (2013.01); B29K 2025/00 (2013.01); B29K 2033/12 (2013.01); B29K 2067/043 (2013.01); B29K 2067/046 (2013.01); B29K 2069/00 (2013.01); G02F 1/13363 (2013.01);
Abstract

A width-direction multilayer laminated film having a large area and uniform optical properties is provided. A light guide, a light diffusion film, a light collecting film, a viewing angle control film, and an optical waveguide film, which are low cost and have excellent optical properties, as well as an illuminating device, a communication device, and a display using these films. The laminated film may include at least a structure in which a layer made of resin A (layer A) and a layer made of resin B (layer B) are alternately laminated in the width direction, wherein the width of the film is 400 mm or more and the number of layer Bs, each having a cross-sectional width from 0.1 μm to 10,000 μm, is 10 or larger.

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