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:
Apr. 07, 2015
Filed:
Jul. 30, 2013
Kyocera Document Solutions Inc., Osaka-shi, JP;
Takanori Tanaka, Osaka, JP;
Yukinori Nakayama, Osaka, JP;
Hiroaki Moriyama, Osaka, JP;
Takeo Mizobe, Osaka, JP;
Hiroki Uemura, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka-Shi, JP;
Abstract
A toner for electrostatic latent image development, containing toner particles composed of toner core particle containing at least a binder resin and a shell layer coating the toner core particle. Average circularities Dto Dof toner particles within predetermined particle diameter ranges are each no less than 0.960, the difference (D−D) between a maximum value Damong Dto Dand a minimum value Damong Dto Dis no greater than 0.015. The shell layer is smoothened to a predetermined level. And, cracks in a direction approximately perpendicular to a surface of the toner core particles are observable inside the shell layer when cross-section of the toner particle is observed using a transmission electron microscope.