Shaw-Ping Chang

Title: Shaw-Ping Chang: Innovator in Electrophotographic Toner Technology

Introduction

Shaw-Ping Chang is a notable inventor based in San Jose, California. He has made significant contributions to the field of electrophotography, particularly in the development of toner compositions. His innovative work has led to advancements that enhance the performance of imaging processes.

Latest Patents

Shaw-Ping Chang holds 1 patent for his invention titled "Electrophotographic polyester toner blends." This novel toner composition features improved thermal and rheological properties, enhanced surface energy, and better frangibility. The toner consists of a thermoplastic polymeric blend and a coloring agent. The polymeric blend includes propoxylated bisphenol-A fumarate and a polyester resin with a chemically bound halogen. A preferred polyester resin used in this invention is tetrabromo-bisphenol fumarate polyester. Additionally, an improved electrophotographic imaging process utilizing the toner particles is also provided.

Career Highlights

Shaw-Ping Chang is currently employed at Ricoh Company, Ltd., where he continues to innovate in the field of imaging technology. His work has been instrumental in enhancing the quality and efficiency of electrophotographic processes.

Collaborations

One of his notable collaborators is Paul Shieh, with whom he has worked closely on various projects related to toner technology.

Conclusion

Shaw-Ping Chang's contributions to electrophotographic toner technology exemplify his commitment to innovation and excellence in the field. His work continues to influence advancements in imaging processes, showcasing the importance of research and development in this area.