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:
Jul. 05, 2016
Filed:
Sep. 17, 2014
Konica Minolta, Inc., Chiyoda-ku, JP;
Naoki Yoshie, Ibaraki, JP;
Keiichiro Higashi, Kyoto, JP;
KONICA MINOLTA, INC., Tokyo, JP;
Abstract
A resin in a liquid developer contains 80 mass % or more of a urethane-modified polyester resin. A component derived from a polyester resin contains a constitutional unit derived from an acid component and a constitutional unit derived from an alcohol component. A ratio of a constitutional unit derived from an aliphatic monomer occupied in the constitutional unit derived from the acid component and the constitutional unit derived from the alcohol component is not lower than 90 mass %. Relation of |T−T|≧20° C. 70° C.≦T≦170° C., 60° C.≦T≦120° C.) is satisfied, where T(° C.) represents a softening temperature Tof toner particles measured with a flow tester under a load of 1 kg and T(° C.) represents a softening temperature Tof toner particles measured with a flow tester under a load of 5 kg.