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For the Inventor, By the Inventor

Daejeon, South Korea

Chang-Soon Lee

USPTO Granted Patents = 14 

 

Average Co-Inventor Count = 3.2

ph-index = 2

Forward Citations = 12(Granted Patents)


Company Filing History:

goldMedal14 out of 8,305 
 
Lg Chem, Ltd
 patents

Years Active: 2006-2014

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14 patents (USPTO):Explore Patents
1. 8808958 - Process for preparing polymerized toner (2014-08-19),
2. 8530128 - Polymerized toner and method for manufacturing same (2013-09-10),
3. 8530127 - Process for preparing polymerized toner (2013-09-10),
4. 8198462 - Dendritic photoactive compound comprising oxime ester and method for preparing the same (2012-06-12),
5. 8092966 - Toner particle having excellent charging characteristics, long term credibility and transferring property, method for producing the same and toner containing said toner particle (2012-01-10),
6. 7592114 - Color toner for non-magnetic mono-component system for increasing printing quality and a method for preparing the same (2009-09-22),
7. 7550241 - Positive chargeable magnetic toner composition (2009-06-23),
8. 7378206 - Non-magnetic monocomponent positive toner composition having superior transfer efficiency (2008-05-27),
9. 7374846 - Method for preparing of non-magnetic monocomponent color toner having superior long term stability (2008-05-20),
10. 7348118 - Non-magnetic monocomponent toner having excellent developing property at low temperature condition (2008-03-25),
11. 7312009 - Color toner having low contamination of charging elements (2007-12-25),
12. 7309555 - Non-magnetic monocomponent color toner and preparation method thereof (2007-12-18),
13. 7252915 - Magnetic mono-component toner composition (2007-08-07),
14. 7070895 - Magnetic toner composition having superior electrification homogeneity (2006-07-04),

Title: Chang-Soon Lee: Innovator in Polymerized Toner Technology

Introduction

Chang-Soon Lee is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of polymerized toner technology, holding a total of 14 patents. His innovative approaches have advanced the efficiency and quality of toner production, impacting various industries.

Latest Patents

Chang-Soon Lee's latest patents include a process for preparing polymerized toner. This invention relates to a method that utilizes a specific block copolymer and copper phthalocyanine within a predetermined range of amounts for a carbon black dispersant during suspension polymerization. This process enables the realization of a narrow particle size distribution, high transcription efficiency, and enhanced image concentration. Another notable patent involves a process for preparing toner, which includes forming an aqueous dispersion medium comprising calcium phosphate and a monomer mixture of a polymer charge control agent, pigment, and a binder resin. This innovative method also focuses on suspension polymerizing the monomer mixture to achieve optimal results.

Career Highlights

Throughout his career, Chang-Soon Lee has worked with leading companies in the industry, including LG Chem and LG Chemical. His experience in these organizations has allowed him to refine his expertise in polymer technology and contribute to groundbreaking advancements.

Collaborations

Chang-Soon Lee has collaborated with notable colleagues such as Hyeung-Jin Lee and Joo-Yong Park. These partnerships have fostered a creative environment that has led to the development of innovative solutions in toner technology.

Conclusion

Chang-Soon Lee's contributions to polymerized toner technology exemplify his dedication to innovation and excellence. His patents and collaborations reflect a commitment to advancing the field, making him a significant figure in the industry.

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