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. 24, 2019
Filed:
Oct. 17, 2018
Kyocera Document Solutions Inc., Osaka, JP;
Masaki Okita, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
A positively chargeable toner includes a plurality of toner particles. The toner particles each contain a crystalline polyester resin, a non-crystalline polyester resin, a carnauba wax, and a quaternary ammonium salt. The crystalline polyester resin has an SP value of at least 10.0 (cal/cm)and no greater than 10.1 (cal/cm). An amount of the crystalline polyester resin is at least 5 parts by mass and no greater than 19 parts by mass relative to 100 parts by mass of the toner particles. An amount of the carnauba wax is at least 21.0% by mass and no greater than 42.0% by mass relative to a total mass of the crystalline polyester resin, the quaternary ammonium salt, and the carnauba wax.