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:
Sep. 23, 2025
Filed:
May. 28, 2020
Applicant:
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Inventors:
Seiichi Isojima, Okayama, JP;
Takashi Kuroda, Moriya, JP;
Assignee:
DAI NIPPON PRINTING CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/00 (2006.01); G02B 1/14 (2015.01); G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
G02B 1/14 (2015.01); G02B 5/3033 (2013.01);
Abstract
Provided is an optical plastic film that can have good scratch resistance against both a hard material and a soft material. An optical plastic film has a first surface and a second surface located on the opposite side to the first surface, wherein the indentation hardness of the cross section on the first surface side, the indentation hardness of the cross section on the second surface side, and the indentation hardness of the cross section in the middle in the thickness direction satisfy a predetermined relationship in the conveyance direction and the transverse direction of the plastic film.