Nam-jeong Lee

Title: Innovations of Nam-jeong Lee in Electrophotographic Organic Photoreceptors

Introduction

Nam-jeong Lee is a prominent inventor based in Gyeonggi-do, South Korea. He has made significant contributions to the field of electrophotographic organic photoreceptors, holding a total of 7 patents. His work focuses on enhancing the performance and efficiency of organic photoreceptors used in various imaging technologies.

Latest Patents

One of his latest innovations is a positively-charged electrophotographic organic photoreceptor. This invention includes an electrically conductive support, with a charge transport layer and a charge generating layer sequentially stacked on it. The charge generating layer is formed by coating a specific composition that includes a fluorene compound, a charge generating material, a binder resin, and an organic solvent. This design allows for high sensitivity while minimizing contamination during the coating process. Additionally, the electrostatic properties of the organic photoreceptor can be easily adjusted, making it suitable for use with liquid toners that have small particle sizes.

Another notable patent is the double-layered positively-charged organic photoreceptor. This design addresses contamination issues caused by charge transport compounds during the coating of the charge generating layer. The composition used for the charge transport layer contains both soluble and insoluble charge transport compounds, ensuring effective charge transfer. The manufacturing method involves coating an electroconductive support with the charge transport layer forming composition and subsequently applying the charge generating layer.

Career Highlights

Nam-jeong Lee is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate in the field of electrophotographic technologies. His work has significantly impacted the development of high-performance organic photoreceptors, contributing to advancements in imaging systems.

Collaborations

He has collaborated with notable coworkers, including Kyung-yol Yon and Saburo Yokota, to further enhance the research and development of organic photoreceptors.

Conclusion

Nam-jeong Lee's contributions to the field of electrophotographic organic photoreceptors demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of the complexities involved in developing high-performance imaging technologies.