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.

Date of Patent:
Jan. 15, 2019

Filed:

Dec. 28, 2016
Applicant:

Kyocera Document Solutions Inc., Osaka, JP;

Inventor:

Tomoyasu Asakawa, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/08 (2006.01); G03G 9/093 (2006.01); G03G 9/087 (2006.01);
U.S. Cl.
CPC ...
G03G 9/09321 (2013.01); G03G 9/08 (2013.01); G03G 9/087 (2013.01); G03G 9/093 (2013.01); G03G 9/09307 (2013.01); G03G 9/09371 (2013.01);
Abstract

An electrostatic latent image developing toner includes a plurality of toner particles each including a toner mother particle and inorganic particles attached to a surface of the toner mother particle. The toner mother particle includes a toner core () and a shell layer () covering a surface of the toner core (). The shell layer () includes film-shaped first domains () and particle-shaped second domains (). The first domains () are substantially formed from a non-cross-linked resin. The second domains () are substantially formed from a cross-linked resin. The cross-linked resin has a glass transition point higher by 40° C. or more than that of the non-cross-linked resin. The first domains () have a surface adsorption force of at least 20.0 nN and no greater than 40.0 nN. The second domains () have a surface adsorption force of at least 4.0 nN and less than 20.0 nN.


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