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:
Jun. 14, 2005
Filed:
Sep. 02, 2003
Takeshi Naito, Kashiwa, JP;
Hiromichi Kobayashi, Kashiwa, JP;
Tsuyoshi Itagoshi, Kashiwa, JP;
Yuji Sato, Kashiwa, JP;
Takeshi Naito, Kashiwa, JP;
Hiromichi Kobayashi, Kashiwa, JP;
Tsuyoshi Itagoshi, Kashiwa, JP;
Yuji Sato, Kashiwa, JP;
Powdertech Co., Ltd., Chiba, JP;
Abstract
A dry two-component developer for electrophotography comprising a carrier particle and a toner particle, wherein a toner water adsorption ratio (T) obtained by a following equation (1) for the toner particle ranges from 1.0 to 7.0 and a carrier water adsorption ratio (C) obtained by a following equation (2) is 20.0 or less, and a water adsorption ratio (T/C) expressed in a following equation (3) representing a relationship between the toner water adsorption ratio (T) and the carrier water adsorption ratio (C) is 5.0 or less;