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. 28, 2006
Filed:
Oct. 30, 2003
Taichi Kobayashi, Tokyo, JP;
Masayuki Matsuzaki, Tokyo, JP;
Masato Sugimachi, Kanagawa, JP;
Yasuhiro Morimura, Tokyo, JP;
Taichi Kobayashi, Tokyo, JP;
Masayuki Matsuzaki, Tokyo, JP;
Masato Sugimachi, Kanagawa, JP;
Yasuhiro Morimura, Tokyo, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
The present invention aims to provide a near-infrared absorption film having excellent near-infrared blocking properties and visible light transparency over a wide wavelength range, and attractive appearance. It further aims to provide a near-infrared absorption film having excellent near-infrared blocking properties, visible light transparency, good appearance and excellent durability such as anti-deterioration properties. The film may comprise a transparent substrate, and a near-infrared absorption layer containing a cyanine compound represented by the formula (1), and a diimonium compound.wherein, in the formula (1), A is a divalent bonding group comprising ethylene. Rand Rare monovalent groups comprising a carbon atom. Xis a monovalent anion. The film may also comprise a transparent substrate, and a near-infrared absorption layer containing a layer containing the cyanine compound represented by the formula (1) and a layer containing a diimonium compound.