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:
Nov. 10, 1998
Filed:
Mar. 14, 1996
Applicant:
Inventors:
Hideaki Yasunaga, Sakai, JP;
Tomoharu Nishikawa, Hirakata, JP;
Koichi Takenaka, Itami, JP;
Hiroshi Shibano, Takarazuka, JP;
Assignee:
Minolta,Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430122 ; 4301066 ; 430108 ; 430111 ; 430137 ;
Abstract
Carrier particles for electrostatic latent image development comprising first particles comprising a binder resin and a magnetic powder dispersed therein and second particles comprising a binder resin and a magnetic powder dispersed therein, said second particles having an average particle size smaller than said first particles, said magnetic powder contained in the first particles has a residual magnetization smaller than that of said magnetic powder contained in the second particles.