James A Johnson

Title: Innovations of James A Johnson

Introduction

James A Johnson is a notable inventor based in Litchfield, CT (US). He has made significant contributions to the field of phosphating compositions and processes, particularly for metal surfaces. His work has led to advancements in the durability and uniformity of coatings used in various applications.

Latest Patents

James A Johnson holds 2 patents that focus on innovative phosphating compositions. His latest patents include compositions and methods for providing a phosphate conversion coating on metal surfaces, especially copper. These phosphating compositions incorporate at least one soluble compound containing vanadium, niobium, tungsten, or tantalum. The resulting phosphate conversion coatings are thicker, more durable, and more uniform than those produced by traditional methods. This technology is particularly beneficial for creating a passivating and uniformizing coating layer on copper surfaces, which is essential in printed circuit fabrication.

Career Highlights

Throughout his career, James has worked with prominent companies such as Macdermid, Incorporated and PPG Industries, Inc. His expertise in the field has allowed him to develop processes that enhance the manufacturing of printed circuits. These processes involve the preliminary application of a uniformizing/passivating coating layer, which significantly improves the deposition of organic resins.

Collaborations

James A Johnson has collaborated with notable professionals in his field, including Gary B Larson and Brian Jobson. Their combined efforts have contributed to the advancement of technologies related to phosphating and printed circuit manufacturing.

Conclusion

James A Johnson's innovations in phosphating compositions have made a significant impact on the industry. His patents and career achievements reflect his dedication to improving the quality and efficiency of metal surface treatments.