This inventor holds 2 USPTO granted patents. Top assignee: 3M Innovative Properties Company. Active years: 1997.
Company Filing History:
Years Active: 1997
Title: Innovations of Joseph H. Lam
Introduction
Joseph H. Lam is an accomplished inventor based in Woodbury, MN (US). He has made significant contributions to the field of coating technologies, particularly in the application of magnetizable layers. With a total of 2 patents to his name, Lam's work has advanced the efficiency and precision of coating processes.
Latest Patents
One of Lam's latest patents is focused on the differential-speed gravure coating of magnetizable layers. This innovative method allows for the application of a magnetizable layer to a flexible backing web at high speeds. By independently driving the backing web at a speed that is substantially different from the surface speed of the gravure roll, especially high coating speeds can be achieved. The gravure roll can rotate in the opposite direction to the backing web's advancement, enhancing the coating process. In this design, a nip roll presses the backing web against a backup roll, maintaining a gap between the gravure roll and the backup roll. An idler roll positioned downstream forces the backing web into contact with the gravure roll over a short arc, ensuring precision even when exposed to solvent vapors.
Another notable patent by Lam is the development of a flexible adjustable smoothing blade. This apparatus continuously smoothes a wet coating of magnetizable particles and binder on a moving flexible web. The design allows for a flexible film to be held in contact with the wet coating while being free to drag against it. The deflection of the film can be adjusted during the coating process, allowing for variations in the radius of curvature. This innovation enhances the quality of the coating applied to the substrate.
Career Highlights
Joseph H. Lam is associated with 3M Innovative Properties Company, where he has been able to leverage his expertise in coating technologies. His work has contributed to the advancement of various applications in the industry, showcasing his commitment to innovation and excellence.
Collaborations
Throughout his career, Lam has collaborated with notable colleagues, including John D. Munter and Donald M. Lewis. These collaborations have further enriched his work and contributed to the development of innovative solutions in the field.
Conclusion
Joseph H. Lam's contributions to the field of coating technologies through his patents and collaborations highlight his role as a significant inventor. His innovative approaches continue to influence the industry and pave the way for future advancements.