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:
Apr. 05, 2011
Filed:
Mar. 03, 2004
Kazuo Baba, Niigata, JP;
Kazunori Hirose, Niigata, JP;
Yoshihiro Oda, Niigata, JP;
Etsuo Nakazato, Niigata, JP;
Ichiro Matsuzaki, Ibaraki, JP;
Kazuo Baba, Niigata, JP;
Kazunori Hirose, Niigata, JP;
Yoshihiro Oda, Niigata, JP;
Etsuo Nakazato, Niigata, JP;
Ichiro Matsuzaki, Ibaraki, JP;
Kuraray Co., Ltd., Okayama, JP;
Abstract
The present invention aims at providing a manufacturing method for an optical sheet capable of manufacturing a thin optical sheet of a uniform thickness distribution with a high thickness accuracy, and high shaping/transferring performances, and an optical sheet manufactured by using the manufacturing method. A manufacturing method for an optical sheet according to the present invention includes passing a resin discharged from a die between a touch roll and a shaping roll under pressure.