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:
Mar. 27, 2012
Filed:
Sep. 24, 2010
Toshiaki Yoshihara, Tokyo, JP;
Satoshi Iwata, Tokyo, JP;
Tsuguki Nishihara, Tokyo, JP;
Koshin Cho, Tokyo, JP;
Toshiaki Yoshihara, Tokyo, JP;
Satoshi Iwata, Tokyo, JP;
Tsuguki Nishihara, Tokyo, JP;
Koshin Cho, Tokyo, JP;
Toppan Printing Co., Ltd., , JP;
Abstract
The present invention provides a release film which has a release layer on a film substrate, which has excellent long-term preservation stability and yet maintains a stripping performance of the release film, which serves to make inspection for foreign materials easy, and which provides excellent design effect when a print layer is formed. The release film has average luminous reflectance of the release film on the surface of the side on which the release layer is formed being in the range of 0.5-2.5%, spectral reflectance curve of the release film surface on which the release layer is formed having a local minimal value and no local maximal value in the wavelength region in the range of 400-800 nm, reflection hue of the release film on the side on which the release layer is formed satisfying both −8≦a*≦8 and −16≦b*≦8 in the L*a*b* color coordinate system.