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. 03, 2001
Filed:
Jan. 31, 2000
Applicant:
Inventors:
Kumi Hasegawa, Shizuoka-ken, JP;
Shinichi Kuramoto, Shizuoka-ken, JP;
Hiroshi Yamashita, Shizuoka-ken, JP;
Masato Igarashi, Ibaraki-ken, JP;
Nobutaka Kinoshita, Shizuoka-ken, JP;
Kohsuke Suzuki, Shizuoka-ken, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/087 ;
U.S. Cl.
CPC ...
G03G 9/087 ;
Abstract
An electrophotographic toner including a colorant and a binder resin including at least a styrene resin, wherein the toner further includes one or more styrene oligomers in an amount not greater than 100 ppm. An electrophotographic image forming method is also disclosed in which an electrostatic latent image formed on an image bearing member is developed with the toner.