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. 03, 2001
Filed:
Jan. 05, 2000
Applicant:
Inventors:
Masahiro Ogata, Chiba-ken, JP;
Kazunori Takagi, Chiba-ken, JP;
Takao Sugiura, Chiba-ken, JP;
Yuji Yoshikawa, Gunma-ken, JP;
Masaaki Yamaya, Gunma-ken, JP;
Assignee:
Powdertech Co., Ltd., Chiba-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/113 ;
U.S. Cl.
CPC ...
G03G 9/113 ;
Abstract
A resin-coated carrier for an electrophotographic developer which comprises a carrier core coated with an acryl-modified silicone resin the silicone resin of which has a methyl group and other organic groups, the molar ratio of the methyl group to the total organic groups inclusive of the methyl group [methyl group/(methyl group+other organic groups)]being 64 mol % or higher and lower than 70 mol %, and the acrylic resin to silicone resin weight ratio ranging from 2/8 to 4/6.