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. 02, 2002
Filed:
Jun. 26, 1997
Applicant:
Inventors:
Kiyoshi Sakamoto, Hyogo-ken, JP;
Kazuhito Wada, Hyogo-ken, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/10 ; G03G 9/00 ; G03G 5/00 ;
U.S. Cl.
CPC ...
G03G 9/10 ; G03G 9/00 ; G03G 5/00 ;
Abstract
A developer for electrophotography comprises toner particles and carrier particles. The carrier particles comprise at least two kinds of carriers particles having different charge giving characteristics onto the toner particles. Plural kinds of carrier particles having different charge giving characteristics act on one another and on the toner particles.