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. 16, 2010
Filed:
Dec. 26, 2006
Takuya Kadota, Kobe, JP;
Minoru Nakamura, Takarazuka, JP;
Masayuki Hagi, Minoo, JP;
Yoshihiro Mikuriya, Nishinomiya, JP;
Katsunori Kurose, Takarazuka, JP;
Hideaki Yasunaga, Ibaraki, JP;
Hiroaki Kato, Nagaokakyo, JP;
Yoshimichi Ishikawa, Itami, JP;
Atsushi Yamamoto, Kawanishi, JP;
Masahide Inoue, Katsuragi, JP;
Takuya Kadota, Kobe, JP;
Minoru Nakamura, Takarazuka, JP;
Masayuki Hagi, Minoo, JP;
Yoshihiro Mikuriya, Nishinomiya, JP;
Katsunori Kurose, Takarazuka, JP;
Hideaki Yasunaga, Ibaraki, JP;
Hiroaki Kato, Nagaokakyo, JP;
Yoshimichi Ishikawa, Itami, JP;
Atsushi Yamamoto, Kawanishi, JP;
Masahide Inoue, Katsuragi, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner kit containing at least a black toner, a yellow toner, a magenta toner and a cyan toner, wherein these toners have at least the binder resin, the colorant and the charge controlling agent having the molecular structure containing K+ as the counterion, when the K+ intensity detected by the fluorescent X ray on the surface of the black toner is Kk, the K+ intensity detected by the fluorescent X ray on the surface of the yellow toner is Ky, the K+ intensity detected by the fluorescent X ray on the surface of the magenta toner is Km and the K+ intensity detected by the fluorescent X ray on the surface of the cyan toner is Kc, the following formulae: Kk<Ky, Kk<Km and Kk<Kc are fulfilled is provided.