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. 16, 2018
Filed:
Dec. 14, 2016
Kyocera Document Solutions Inc., Osaka, JP;
Kazuki Tsuchihashi, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
An electrostatic latent image developing toner includes a plurality of toner particle each including a toner mother particle and silica particles attached to a surface of the toner mother particle. The toner mother particle includes a toner core and a shell layer. The shell layer includes a first domain substantially formed from a first resin and a second domain substantially formed from a second resin. Both the first resin and the silica particles have higher positive chargeability than the second resin. A shell coverage is at least 40% and no greater than 90%. The toner particles each have an average value of surface potentials measured using a scanning probe microscope of at least +50 mV and no greater than +350 mV and a standard deviation thereof of no greater than 120 mV.