Leonard J Janssen

Title: Leonard J Janssen: Innovator in Electrochemical Processes

Introduction

Leonard J Janssen is a notable inventor based in Nuenen, Netherlands. He has made significant contributions to the field of electrochemical processes, holding a total of 2 patents. His work focuses on innovative methods for metal coating and the preparation of aromatic compounds.

Latest Patents

One of Janssen's latest patents is a method of electrolytic metal coating of a strip-shape metal substrate. In this process, the substrate is continuously passed as a cathode through an electrolytic coating apparatus with an insoluble anode. The cathode and anode are connected to an external voltage source, allowing metal ions to deposit onto the substrate from an acidic electrolyte. To enhance the anode's service life and reduce power consumption, a hydrogen-providing gas, such as molecular hydrogen, is introduced to the anode. A catalyst is also present, facilitating the formation of electrons and hydrogen ions from the hydrogen-providing gas, with the hydrogen ions entering the electrolyte.

Another significant patent by Janssen involves a method and apparatus for preparing aromatic hydrazo or diaminodiphenyl compounds. This method utilizes the electrochemical reduction of aromatic nitro compounds on a technical scale. The reaction occurs continuously in two steps: first, the aromatic nitro compounds are reduced to form azoxy compounds, which are then isolated. In the second step, these azoxy compounds are further reduced to yield the corresponding hydrazo compounds.

Career Highlights

Throughout his career, Leonard J Janssen has worked with prominent companies, including Hoogovens Groep B.V. and Borma B.V. His experience in these organizations has contributed to his expertise in electrochemical processes and innovation.

Collaborations

Janssen has collaborated with notable coworkers such as Gijsbertus C Van Haastrecht and Hans De Groot. Their joint efforts have likely played a role in advancing the projects they have worked on together.

Conclusion

Leonard J Janssen is a distinguished inventor whose work in electrochemical processes has led to valuable patents and advancements in the field. His innovative methods continue to influence the industry and showcase the importance of research and development in technology.