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:
Jun. 26, 2018
Filed:
Jul. 01, 2016
Kyocera Document Solutions Inc., Osaka, JP;
Seishi Ojima, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
A positively chargeable toner includes a plurality of toner particles each including a core and a shell layer disposed over a surface of the core. The core contains a polyester resin. The shell layer covers at least 40% and no greater than 80% of an area of the surface of the core, ζ(4) is greater than 0 V. ζ(6) is less than 0 V. A relationship represented by |ζ(3)−ζ(4)|>|ζ(6)−ζ(7)| is satisfied. ζ(3), ζ(4), ζ(6), and ζ(7) represent zeta potentials of the positively chargeable toner with the toner particles having no external additive. ζ(3), ζ(4), ζ(6), and ζ(7) are respectively measured in an aqueous medium at pH 3, pH 4, pH 6, and pH 7.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile