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:
Oct. 16, 2007
Filed:
Apr. 08, 2004
Applicants:
Woo-cheul Jung, Ulsan, KR;
Woong-ki Lee, Daejeon, KR;
Tae-hee Yoon, Daejeon, KR;
Inventors:
Assignee:
LG Chem, Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a toner having a double- or triple-layered structure. The present invention is effective in that pigments and charge control agents are located most properly for the realization of high-resolution toners through addition and polymerization of hydrophilic monomers or polymers with the toners; the manufacture of high-resolution toners becomes very easy irrespective to the kind and amount of a wax used for polymerized toners by forming thin layers by using polar grafting agents; and long-term preservation is assured as well as the affect by moisture is minimized.