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. 16, 2010
Filed:
May. 23, 2007
Kohji Kubota, Sakai, JP;
Shoji Watanabe, Sakai, JP;
Kohta Wakimoto, Sakai, JP;
Nobuyasu Makino, Numazu, JP;
Kohji Kubota, Sakai, JP;
Shoji Watanabe, Sakai, JP;
Kohta Wakimoto, Sakai, JP;
Nobuyasu Makino, Numazu, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
To provide a method for producing a toner, containing a milling step containing finely milling particles and classifying coarse particles by using at least a mill and a cyclone unit, and a classifying step containing classifying pulverized particles by using at least a classifier and a cyclone unit, wherein any of the pulverized particles and other particles, which are classified by the classifier in the classifying step and returned, are returned to the cyclone unit in the milling step, and a toner produced by the method for producing the toner.