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:
Nov. 05, 2002
Filed:
Sep. 12, 2001
Motohiro Oka, Tokyo-To, JP;
Mitsuru Tsuchiya, Tokyo-To, JP;
Norinaga Nakamura, Tokyo-To, JP;
Kiyotaka Takematsu, Tokyo-To, JP;
Yurie Ota, Tokyo-To, JP;
Hiroko Suzuki, Tokyo-To, JP;
Natsuko Yamashita, Tokyo-To, JP;
Hiroomi Katagiri, Tokyo-To, JP;
Hiroshi Yamada, Tokyo-To, JP;
Toshio Yoshihara, Tokyo-To, JP;
Abstract
An antireflection film containing a transparent substrate film, a hard coat layer on the substrate film, and first and second refractive index layers on the hard coat layer. The hard coat layer has a refractive index higher than the refractive index of the transparent substrate film; the first refractive index layer has a refractive index higher than the refractive index of the hard coat layer; the second refractive index layer has a refractive index lower than the refractive index of the hard coat layer.