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. 21, 2013
Filed:
Aug. 07, 2008
Kazumi Suzuki, Shizuoka-ken, JP;
Yohichiroh Watanabe, Fuji, JP;
Kazumi Suzuki, Shizuoka-ken, JP;
Yohichiroh Watanabe, Fuji, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A method of preparing a toner, including dripping a toner constituent liquid comprising an organic solvent; and toner constituents comprising a resin and a colorant, which are dissolved or dispersed in the organic solvent through a nozzle to form a droplet; and removing the organic solvent from the droplet, wherein the droplet is dried while contacted with a first de-solvent gas comprising steam in a pre-heated period and at least a part of a constant-rate drying period, or the droplet is dried at least in a pre-heated period and a constant-rate drying period, which include two stages including a first stage and a second stage, wherein the droplet is contacted with the first de-solvent gas including steam in the first stage and a second de-solvent gas having a dew point not greater than −10° C. under ordinary pressure in the second stage.