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.:

US 7309555 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 18, 2007

Filed:

Jan. 12, 2005
Applicants:

Hyeung-jin Lee, Busan, KR;

Joo-yong Park, Daejeon, KR;

Chang-soon Lee, Daejeon, KR;

Inventors:

Hyeung-Jin Lee, Busan, KR;

Joo-Yong Park, Daejeon, KR;

Chang-Soon Lee, Daejeon, KR;

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 non-magnetic monocomponent color toner and a preparing method thereof. In the non-magnetic monocomponent color toner including a toner mother particle, silica and titanium dioxide, the toner mother particle comprises a specific shaped particle size distribution of the charge control agents, and thus, providing non-magnetic monocomponent color toner with a narrow charge distribution and good chargeability. Accordingly, the color toner does not cause contamination in the non-imaging region. Also, because it has superior image density and printing efficiency and significantly improved charge maintenance, it has good long-term stability.


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Lee, Hyeung-Jin. (2007). Non-magnetic monocomponent color toner and preparation method thereof (U.S. Patent No. 7309555). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7309555

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