Location History:
- Sevrier, FR (1992 - 1994)
- Villaz, FR (1996 - 2003)
Company Filing History:
Years Active: 1992-2003
Title: The Innovative Mind of Didier Pierrejean
Introduction
Didier Pierrejean is a notable inventor based in Villaz, France, recognized for his contributions to technology and engineering. With a total of nine patents to his name, Pierrejean has made significant advancements in the field of electron emission and mass spectrometry.
Latest Patents
One of his latest patents is for a high-pressure operation of a field-emission cold cathode. This innovative system generates electrons through a field-emission cathode that features an array of electron-emitting micropoints. These micropoints are associated with a grid and are carried by a substrate equipped with integral heater means. This design allows for heating the micropoints to a temperature range of approximately 300°C to 400°C, maintaining that temperature during electron emission. As a result, the cathode can function at higher residual air pressures without the risk of breakdown.
Another significant patent by Pierrejean is an ion source for time-of-flight mass spectrometers used for analyzing gas samples. This invention includes an electron gun with an electron source and at least one electrode for conditioning the flow of electrons. Following this, at least one microchannel wafer generates a pulsed secondary electron beam, which contains a greater number of electrons from a pulsed primary electron beam. The secondary electron beam enters a gas ionization area of an ion gun, producing a flow of ions that is then analyzed by an ion detector. This design results in a high-performance ion source that is compact, sensitive, and easy to integrate.
Career Highlights
Throughout his career, Didier Pierrejean has worked with prominent companies, including Alcatel and Alcatel Cit. His work in these organizations has contributed to his expertise and innovation in the field of technology.
Collaborations
Pierrejean has collaborated with notable coworkers such as Denis Perrillat-Amede and Guy Lemarquand. These partnerships have likely fostered a creative environment that has led to the development of his groundbreaking inventions.
Conclusion
Didier Pierrejean's contributions to the fields of electron emission and mass spectrometry highlight his innovative spirit and technical expertise. His patents reflect a commitment to advancing technology and improving existing systems.