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:
May. 05, 2009
Filed:
Apr. 14, 2006
Tomio Yoneyama, Yokohama, JP;
Ryuichi Hasegawa, Yokohama, JP;
Hideo Sano, Yokohama, JP;
Junichi Oizumi, Yokohama, JP;
Masaaki Nishimura, Yokohama, JP;
Masami Kadowaki, Yokohama, JP;
Tomio Yoneyama, Yokohama, JP;
Ryuichi Hasegawa, Yokohama, JP;
Hideo Sano, Yokohama, JP;
Junichi Oizumi, Yokohama, JP;
Masaaki Nishimura, Yokohama, JP;
Masami Kadowaki, Yokohama, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
An anisotropic dye film having high dichromatic properties is provided. An anisotropic dye film wherein the period d attributable to molecular stacking is at most 3.445 Å, and the column length L thereof is at least 105 Å. The anisotropic dye film preferably has a degree of orientation of the molecular stacking axes of at least 85% and a film thickness of at most 30 μm, and is formed by a wet film-forming method. Since it has a molecular alignment suitable to develop a dichroic ratio, it provides high dichromatic properties. A polarizing element having this anisotropic dye film is excellent in heat resistance, light fastness and polarizing performance.