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:
Nov. 06, 2012
Filed:
Dec. 14, 2009
Yoshinori Mutoh, Osaka, JP;
Yoshiaki Akazawa, Osaka, JP;
Yoshitaka Kawase, Osaka, JP;
Yoritaka Tsubaki, Osaka, JP;
Keiichi Kikawa, Osaka, JP;
Takashi Hara, Osaka, JP;
Yoshinori Mutoh, Osaka, JP;
Yoshiaki Akazawa, Osaka, JP;
Yoshitaka Kawase, Osaka, JP;
Yoritaka Tsubaki, Osaka, JP;
Keiichi Kikawa, Osaka, JP;
Takashi Hara, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A method for manufacturing a toner includes a pre-mixing step and a coating step. In the pre-mixing step, a secondary aggregate of the fine resin particles is disaggregated, while toner base particles and fine resin particles are mixed and stirred using a rotary stirring apparatus. Thus obtained disaggregated fine resin particles are fixed to the surface of the toner base particle. Thus, a fine resin particle-fixed toner is obtained. The rotary stirring apparatus includes a rotary stirring section, a temperature regulation section, a circulating section, and a spraying section. In the coating step, a liquid is sprayed to the fine resin particle-fixed toner with the spraying section using the rotary stirring apparatus. Thus, a film of the fine resin particles is formed. In the pre-mixing step and the coating step, temperature regulation is conducted in the temperature regulation section.