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. 03, 2004
Filed:
Jan. 14, 2002
Applicant:
Inventors:
Sumitaka Tatsuta, Fujinomiya, JP;
Yuichi Wakata, Fujinomiya, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 ; C09K 1/902 ;
U.S. Cl.
CPC ...
G02F 1/1335 ; C09K 1/902 ;
Abstract
Optical diffusion element comprises a layer of polymer particles self-fused together, each polymer particle having a refractivity varying from the center to the periphery thereof and a component for the periphery having a glass transition temperature that is desirably lower than 100° C. The optical diffusion element is desirably provided with an optical transparent layer in contact with the polymer particle layer.