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:
May. 17, 2016
Filed:
Feb. 07, 2013
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Toshiharu Kataoka, Osaka, JP;
Yasuo Imura, Osaka, JP;
SHARP KABUSHIKI KAISHA, Osaka, JP;
Abstract
Toner for electrostatic development in accordance with one aspect of the present invention contains toner base particles produced by subjecting a toner composition containing binder resin, a coloring agent, and wax to melting and kneading and thereafter pulverization and classification, the toner having a volume median particle diameter (D50) of 5.5 to 7.5 μm, and the toner having particle size distribution in which the toner base particles include 15 to 55% by number of toner base particles of not more than 5 μm in particle diameter, and include not more than 1.5% by number of toner particles of more than 10 μm in particle diameter.