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| Number | Title | Issue Date |
| 7931702 | Azo compound and salt thereof, and dye-containing polarizing film comprising the compound or salt Disclosed is an azo compound represented by the general formula (1) or a salt thereof: wherein R1 and R2 independently represent a hydrogen atom, a lower alkyl group or a lower alkoxy group; and n r... | 04/26/2011 |
| 7514129 | Azo compound and polarizing film and polarizing plate each containing the same A polarizing film or polarizing plate containing, as a dichroic dye, an azo compound whose free acid form is represented by the following formula (1): wherein R1 and R2 each independently represents sulfo, carboxy, lower al... | 04/07/2009 |
| 7445822 | Azo compounds and dye-type polarizing films or plates containing the same Azo compounds whose free acid forms are represented by the general formula (1) are extremely useful as the dichroic dye to be used in polarizing plates which are excellent in polarization performance and endurance and reduced in the color cross-talk within the visib... | 11/04/2008 |
| 7416683 | Liquid crystal mixed composition and retardation film using same The invention relates to a liquid crystal mixed-composition comprising one or more cellulose derivatives and one or more liquid crystal compounds (preferably low-molecular liquid crystal compound) which can be oriented in a specific direction differing from that of ... | 08/26/2008 |
| 7410680 | Retardation film made by using cellulose derivatives The present invention relates to a retardation film obtained by subjecting a film formed from a cellulose derivative to an orientation treatment, wherein a hydroxyl group of cellulose is substituted by at least one kind of aliphatic acyl group having 5 to 20 carbon ... | 08/12/2008 |
| 7163723 | Liquid crystalline compound and reterdation difference film using the same A phase difference film which comprises a liquid crystal film having a liquid crystal comprised of a cellulose derivative as a liquid crystal compound (cellulose derivative liquid crystal) being oriented in a specific direction, preferably said phase difference film... | 01/16/2007 |
