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:
Feb. 10, 2009
Filed:
Dec. 13, 2005
Katsumi Daimon, Minamiashigara, JP;
Shuji Sato, Minamiashigara, JP;
Shigeru Hayashi, Minamiashigara, JP;
Yosuke Tsurumi, Minamiashigara, JP;
Yusuke Ikeda, Minamiashigara, JP;
Hiroshi Nakazawa, Minamiashigara, JP;
Katsumi Daimon, Minamiashigara, JP;
Shuji Sato, Minamiashigara, JP;
Shigeru Hayashi, Minamiashigara, JP;
Yosuke Tsurumi, Minamiashigara, JP;
Yusuke Ikeda, Minamiashigara, JP;
Hiroshi Nakazawa, Minamiashigara, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
Provided are an electrophotographic toner, comprising a binder resin containing a coloring agent, a crystalline resin and an amorphous resin, wherein the crystalline resin has two or more peaks in weight-average molecular weight as determined by gel permeation chromatography, one of the peaks has a weight-average molecular weight in the range of 15,000 to 40,000, and another peak has a weight-average molecular weight in the range of 2,000 to 10,000 and a production method thereof, and an electrophotographic developer and an image-forming process using the electrophotographic toner.