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. 22, 2019
Filed:
Sep. 26, 2018
Applicant:
Kyocera Document Solutions Inc., Osaka, JP;
Inventor:
Akinori Koyama, Osaka, JP;
Assignee:
KYOCERA Document Solutions Inc., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/097 (2006.01); G03G 15/00 (2006.01); G03G 9/08 (2006.01); G03G 5/082 (2006.01); G03G 5/147 (2006.01);
U.S. Cl.
CPC ...
G03G 9/09708 (2013.01); G03G 5/08214 (2013.01); G03G 5/14704 (2013.01); G03G 9/0819 (2013.01); G03G 9/09716 (2013.01); G03G 9/09725 (2013.01); G03G 15/75 (2013.01);
Abstract
A toner includes a plurality of toner particles each including a toner mother particle and an external additive adhering to a surface of the toner mother particle. The external additive includes hydrotalcite particles. The hydrotalcite particles have a number average primary particle diameter of at least 80 nm and no greater than 1,000 nm. The hydrotalcite particles have a volume resistivity of no greater than 1.0×10Ω·cm. An amount of the hydrotalcite particles is at least 0.5 parts by mass and no greater than 3.0 parts by mass relative to 100 parts by mass of the toner mother particles.