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:
Sep. 07, 2005
Takayuki Teshima, Yokohama, JP;
Ryuji Higashi, Kawasaki, JP;
Koichi Sato, Atsugi, JP;
Hitoshi Toma, Yokohama, JP;
Ken Eguchi, Yokohama, JP;
Takayuki Teshima, Yokohama, JP;
Ryuji Higashi, Kawasaki, JP;
Koichi Sato, Atsugi, JP;
Hitoshi Toma, Yokohama, JP;
Ken Eguchi, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A process for producing a colorant comprises the step of mixing a coloring material and a block copolymer in a flow channel of a microreactor to obtain a dispersion comprising a colorant as a dispersoid. The flow-mixing channel may have a cross-sectional area of not less than 0.5 mm, and the ratio of the total cross-sectional areas of flow channels connected with the flow-mixing channel to the cross-sectional area of the flow-mixing channel ranges from 0.01 to 0.1, and a rectangular cross-section having a ratio of a flow channel depth to a flow channel width of not less than 0.5.