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:
Jul. 21, 2009
Filed:
Aug. 17, 2006
Applicants:
Takamasa Ueda, Tokyo, JP;
Mikio Koyama, Tokyo, JP;
Kenji Hayashi, Tokyo, JP;
Inventors:
Assignee:
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/087 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of preparing an electrophotographic toner is disclosed, comprising subjecting polyester resin particles and colored microparticles to coagulation and fusion in an aqueous medium to form toner particles, wherein the colored microparticles comprise a colorant and a crosslinked polyester resin or a nitrogen-containing polycondensate resin.