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:
Mar. 18, 2008
Filed:
Mar. 20, 2003
Kohsuke Suzuki, Numazu, JP;
Satoshi Mochizuki, Numazu, JP;
Tomio Kondou, Numazu, JP;
Masahide Yamashita, Numazu, JP;
Tomomi Tamura, Numazu, JP;
Takayuki Koike, Yokohama, JP;
Kohsuke Suzuki, Numazu, JP;
Satoshi Mochizuki, Numazu, JP;
Tomio Kondou, Numazu, JP;
Masahide Yamashita, Numazu, JP;
Tomomi Tamura, Numazu, JP;
Takayuki Koike, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A developer for developing an electrostatic latent image, including a carrier which includes core particles, and a surface layer surrounding each of the core particles and containing an acrylic resin binder; and a toner which includes toner particles and an external additive of inorganic or organic fine particles present on each of the toner particles. Each of the toner particles comprises a colorant, a matrix of a first resin, and a plurality of domains of a second resin dispersed in the matrix and containing a wax. The first resin is substantially free of tetrahydrofuran insoluble matters and has a weight average molecular weight of 3,000 to 90,000.