Chu-Heng Liu

Title: Chu-Heng Liu: Innovating Additive Manufacturing and Printing Systems

Introduction:

Chu-Heng Liu, a distinguished inventor based in Penfield, NY, has made significant contributions to the field of additive manufacturing and printing systems. With an impressive portfolio of 211 patents, Liu has consistently pushed the boundaries of innovation and improved the efficiency and functionality of printing technologies. Let's explore some of his latest patents, career highlights, collaborations, and the invaluable impact he has made in the industry.

Latest Patents:

Liu's recent patents showcase his expertise in surface-treated additive manufacturing printhead nozzles and methods for the same. These patents describe techniques for enhancing the wettability of nozzles used in additive manufacturing devices. By subjecting the nozzle's surface to a surface treatment process involving various surface modifying agents, such as oxidizing agents, acids, bases, or combinations thereof, Liu has successfully increased the oxygen content on the nozzle's surface. This treatment results in improved water contact angles while maintaining a coating-free inner surface, allowing for more precise and reliable additive manufacturing processes.

Another notable patent by Liu focuses on airflow control in printing systems. This innovation addresses the need for effective vacuum suction mechanisms in a printing system to securely hold the print medium against a movable support surface. By utilizing upstream and downstream valves, the system selectively controls the airflow through the opening in the carrier plate. Actuation of these valves is intelligently controlled based on the print medium's location, ensuring optimal workflow and print quality. Additionally, Liu's invention features individually addressable channels for vacuum platen control, allowing for efficient supply of vacuum suction based on the size of the print medium.

Career Highlights:

Throughout his career, Chu-Heng Liu has made significant contributions to the research and development efforts of renowned companies. He worked at Xerox Corporation, a prominent name in the printing and imaging industry, where he likely made valuable contributions to their technology and product advancements. Moreover, Liu has also collaborated with the Palo Alto Research Center Inc., a research and development subsidiary of Xerox Corporation known for pioneering innovations in various domains, including advanced printing technologies.

Collaborations:

Chu-Heng Liu's collaborations with talented individuals have helped shape the direction of his research and fostered an environment of collective innovation. Working alongside esteemed colleagues such as Paul J McConville and Douglas K Herrmann, Liu has benefitted from shared expertise and diverse perspectives. Collaborative efforts often lead to breakthrough inventions and optimized solutions, which Liu has undoubtedly achieved through his professional partnerships.

Conclusion:

Chu-Heng Liu's wealth of experience and extensive patent portfolio in additive manufacturing and printing systems exemplify his remarkable contributions to the industry. Focusing on enhancing the performance of additive manufacturing printhead nozzles and optimizing airflow control in printing systems, Liu has consistently demonstrated his innovative prowess. His career highlights and collaborations with industry-leading companies further solidify his reputation as a visionary inventor. Chu-Heng Liu's dedication to advancing the field of printing technology makes him a key figure in the ongoing evolution of additive manufacturing and printing systems.