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:
Oct. 13, 2009
Filed:
Jun. 23, 2006
Kevin D. Lofftus, Fairport, NY (US);
Satyanarayan Srinivsan, Pittsford, NY (US);
David D. Putnam, Fairport, NY (US);
Peter S. Alexandrovich, Rochester, NY (US);
Kevin D. Lofftus, Fairport, NY (US);
Satyanarayan Srinivsan, Pittsford, NY (US);
David D. Putnam, Fairport, NY (US);
Peter S. Alexandrovich, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
The invention relates to a developer for developing electrostatic images. The developer includes magnetic carrier particles at a loading of from 60 to 99 weight percent of the developer. Toner particles are at a loading of 1 to 40 weight percent of the developer. The toner particles include a resin core particle having an outer surface and 0.05 to 5 weight percent a first metal oxide powder is substantially fixed to the outer surface. The toner particles further include 0.05 to 2 weight percent of a second metal oxide powder that is substantially free to transfer between outer surface of the toner particles and an outer surface of the magnetic carrier surface.