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:
Apr. 20, 2010
Filed:
Jan. 22, 2007
Takao Yamanouchi, Tokyo, JP;
Shingo Fujimoto, Tokyo, JP;
Makoto Kobayashi, Tokyo, JP;
Kazuya Isobe, Tokyo, JP;
Hirofumi Koga, Tokyo, JP;
Takao Yamanouchi, Tokyo, JP;
Shingo Fujimoto, Tokyo, JP;
Makoto Kobayashi, Tokyo, JP;
Kazuya Isobe, Tokyo, JP;
Hirofumi Koga, Tokyo, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
An electrophotographic toner is disclosed, comprising a binding resin, a colorant and a releasing agent, wherein the releasing agent comprises a first releasing agent component of a monoester compound represented by formula (1) and a second releasing agent component composed of a hydrocarbon compound having a branched chain structure, and the first releasing agent component accounting for 40% to 98% by mass of the total amount of the first and second releasing agent components:R—COO—R  (1)wherein Rand Rare each independently a hydrocarbon group having 13 to 30 carbon atoms.