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. 23, 2007
Filed:
Jun. 28, 2004
Applicants:
Atsushi Sone, Tokyo, JP;
Tetsuya Toyoshima, Tokyo, JP;
Kohei Arakawa, Tokyo, JP;
Inventors:
Assignee:
Zeon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/18 (2006.01); B32B 7/02 (2006.01); B32B 23/08 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical multilayer film comprising a hard coat layer and a low refractive index layer comprising aerogel, which layers are laminated, in this order, directly or with another intervening layer on one surface of a base film comprising a transparent resin, wherein the refractive index nof the hard coat layer and the refractive index nof the low refractive index layer satisfy the following three formulae [1], [2] and [3],1.25≦≦1.37 Formula [1]≧1.53 Formula [2]()−0.2<<()+0.2. Formula [3.]