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. 26, 2023
Filed:
Jul. 09, 2021
Applicant:
Konica Minolta, Inc., Tokyo, JP;
Inventors:
Assignee:
KONICA MINOLTA, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/09 (2006.01); G03G 9/087 (2006.01); G03G 9/097 (2006.01); G03G 9/08 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0906 (2013.01); G03G 9/0821 (2013.01); G03G 9/08711 (2013.01); G03G 9/08755 (2013.01); G03G 9/0904 (2013.01); G03G 9/0926 (2013.01); G03G 9/09708 (2013.01);
Abstract
The toner for developing an electrostatic charge image of the present invention contains a toner base particle comprising a binder resin and at least two kinds of organic pigments, and alumina as an external additive. The at least two kinds of organic pigments comprises: a pigment P1 having an absorption maximum wavelength λmax (nm) of greater than 400 nm and less than 600 nm when dispersed in methyl ethyl ketone; and a pigment P2 having an absorption maximum wavelength λ max (nm) of 600 nm or more and 700 nm or less when dispersed in methyl ethyl ketone.