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:
Aug. 02, 2011
Filed:
Dec. 12, 2005
Applicants:
Toshiaki Hasegawa, Minamiashigara, JP;
Yasunobu Kashima, Minamiashigara, JP;
Takeshi Iwanaga, Minamiashigara, JP;
Hiroyoshi Okuno, Minamiashigara, JP;
Inventors:
Toshiaki Hasegawa, Minamiashigara, JP;
Yasunobu Kashima, Minamiashigara, JP;
Takeshi Iwanaga, Minamiashigara, JP;
Hiroyoshi Okuno, Minamiashigara, JP;
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 9/083 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides an electrostatic latent image developing toner including a binding resin having an acidic polar group, a magnetic powder, and a carboxylic acid group-containing compound, the toner having a shape factor (SF1) of 110 to 140, wherein the carboxylic acid group-containing compound has a weight-average molecular weight of 1800 to 50,000 and an acid value of 150 to 600 mg KOH/g.