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:
Oct. 19, 2016
Kyocera Document Solutions Inc., Osaka, JP;
Sho Sumioka, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
An electrostatic latent image developing toner includes toner particles each including a core and a shell layer disposed over a surface of the core. The shell layer contains first resin particles having a number average particle diameter of 60 nm to 100 nm and second resin particles having a number average particle diameter of 10 nm to 50 nm. A particle diameter difference obtained by subtracting the number average particle diameter of the second resin particles from the number average particle diameter of the first resin particles is +20 nm to +50 nm. The first resin particles contain a charge control agent. The first resin particles have a higher softening point than the second resin particles. A ratio of a mass of the first resin particles to a sum of the mass of the first resin particles and a mass of the second resin particles is 0.7 to 0.9.