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:
Feb. 18, 2003
Filed:
Nov. 06, 2000
Motoharu Ishikawa, Chiba-ken, JP;
Hideaki Kurata, Chiba-ken, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
A micelle dispersion containing hydrophobic particles, conductive particles and a surfactant of a ferrocene derivative dispersed in an aqueous medium. The surfactant of a ferrocene derivative in an equilibrium concentration contains an oxidized compound in a concentration of 40 &mgr;g/ml or less and a reduced compound in a concentration of 50 to 300 &mgr;g/ml. A process for producing a micelle dispersion including dispersing hydrophobic particles, conductive particles and a surfactant of a ferrocene derivative in an aqueous medium, where an oxidized compound in the surfactant of a ferrocene derivative is removed with at least one of an ion exchange resin and a reducing agent. A color filter can be produced in excellent yield without color overlapping by using the micelle dispersion and the process provides the micelle dispersion.