Ching-Liang Yang

Title: Innovations of Ching-Liang Yang in Electrophotographic Photoreceptors

Introduction

Ching-Liang Yang is a notable inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of electrophotographic photoreceptors, particularly through his innovative patent involving ammonia-modified titanyl phthalocyanine. His work has implications for improving the performance and stability of photoreceptors used in various applications.

Latest Patents

Ching-Liang Yang holds a patent titled "Electrophotographic photoreceptors containing titanyl phthalocyanine." This invention discloses an ammonia-modified titanyl phthalocyanine for use in preparing the charge-generating layer of a photoreceptor. The process involves several steps, including the reaction of titanium tetrachloride with halogen-containing naphthalene to obtain an unmodified titanyl phthalocyanine. The unmodified compound is then dispersed in an organic solvent and subjected to ammonia-induced complexation-mediated crystal transformation. This transformation can be achieved by bubbling ammonia gas through the solution or by adding an ammonia-saturated aqueous solution. The resulting ammonia-modified titanyl phthalocyanine exhibits specific Bragg diffraction angles and vibrational absorption resonances, demonstrating excellent spectral sensitivity in the near-infrared range and cyclic stability.

Career Highlights

Throughout his career, Ching-Liang Yang has worked with prominent organizations such as Sinonar Corporation and the Industrial Technology Research Institute. His experience in these institutions has allowed him to develop and refine his innovative ideas in the field of photoreceptors.

Collaborations

Ching-Liang Yang has collaborated with notable colleagues, including Chen-Jen Yang and Tsong-Shin Jean. These collaborations have contributed to the advancement of research and development in their respective fields.

Conclusion

Ching-Liang Yang's contributions to the field of electrophotographic photoreceptors highlight his innovative spirit and dedication to advancing technology. His patent on ammonia-modified titanyl phthalocyanine represents a significant step forward in improving photoreceptor performance and stability.