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:
Sep. 26, 2017
Filed:
Jan. 16, 2015
Kyocera Document Solutions Inc., Osaka, JP;
Noriaki Sakamoto, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
A toner includes a plurality of toner particles each having a core and a shell layer residing on a surface of the core. Each of the toner particles has a distribution of surface potential, as measured by a scanning probe microscope with respect to a 1 μmregion of the toner particle in a state where no external additive adheres thereto, satisfying that the surface potential is at least Vmin+ΔV×0.4 in at least 70% and no greater than 95% of the 1 μmregion, where ΔV denotes a potential difference calculated by subtracting a minimum surface potential Vmin of the 1 μmregion from a maximum surface potential Vmax of the 1 μmregion.