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. 17, 2009
Filed:
Dec. 23, 2004
Hiroyuki Kawanishi, Kanagawa, JP;
Sumio Ohtani, Kanagawa, JP;
Yosuke Nishiura, Kanagawa, JP;
Tadashi Ito, Kanagawa, JP;
Hiroyuki Kawanishi, Kanagawa, JP;
Sumio Ohtani, Kanagawa, JP;
Yosuke Nishiura, Kanagawa, JP;
Tadashi Ito, Kanagawa, JP;
Fujifilm Corporation, Minato-Ku, Tokyo, JP;
Abstract
To provide an optical film which exhibits excellent retardation values both in the film plane and along the direction perpendicular to the film plane and shows little change in retardation values depending on environmental factors such as humidity, a liquid crystal display showing little change in viewing angle characteristics due to an environmental (humidity) change, and a polarizing plate to be used in the liquid crystal display, the cellulose acylate contains a cellulose acylate which is a mixed fatty acid ester of a cellulose and satisfies formulae specified in the specification, and a polarizing plate and a liquid crystal display using this cellulose acylate film.