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.

Date of Patent:
Jan. 17, 2012

Filed:

Jul. 25, 2007
Applicant:

Nobuo Kubo, Hachioji, JP;

Inventor:

Nobuo Kubo, Hachioji, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of producing and optical film, comprises the steps of: mixing a resin and grains, heating a mixture of the resin and the grains and kneading the heated melted mixture, thereby preparing a mixture material of the resin and the grains; dissolving the mixture material in a solvent, thereby preparing a resin solution; and casting the resin solution so as to form an optical film.


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