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:
Jan. 14, 2014
Filed:
May. 31, 2006
Hiromichi Kobayashi, Kashiwa, JP;
Tsuyoshi Itagoshi, Kashiwa, JP;
Tomoyuki Suwa, Kashiwa, JP;
Toshio Honjo, Kashiwa, JP;
Hiromichi Kobayashi, Kashiwa, JP;
Tsuyoshi Itagoshi, Kashiwa, JP;
Tomoyuki Suwa, Kashiwa, JP;
Toshio Honjo, Kashiwa, JP;
Powdertech Co. Ltd., Chiba, JP;
Abstract
A ferrite core material for a resin-filled type carrier, and a resin-filled type carrier which is used as an electrophotographic developer by mixing a toner, sufficiently secure the image density, have no carrier adhesion and can maintain high-quality images over a long period, and an electrophotographic developer using the carrier, are provided. A ferrite core material for a resin-filled type carrier characterized in a void fraction of 10 to 60%, a resin-filled type carrier filled in the carrier core material with a resin, and an electrophotographic developer composed of the resin-filled type carrier and a toner, are provided.