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:
Aug. 28, 2012
Filed:
Sep. 12, 2007
Applicant:
Masami Tomita, Numazu, JP;
Inventor:
Masami Tomita, Numazu, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/113 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for producing a toner is provided that comprises a kneading step, a milling step, a pre-externally adding step, in which at least a part of an external additive is externally added to the powder to prepare a mixture, a classifying step, a recycle step, and a post-externally adding step,