Company Filing History:
2 out of 30 
1 out of 777 
Years Active: 1988-2006
Title: Fred I Friedlander: Innovator in Electron Beam Technology
Introduction
Fred I Friedlander is a notable inventor based in Saratoga, California. He has made significant contributions to the field of electron beam technology, holding a total of three patents. His work focuses on improving the efficiency and functionality of multi-beam electron beam devices.
Latest Patents
One of Friedlander's latest patents is a method and apparatus for magnetic focusing of off-axis electron beams. This invention provides axially symmetric magnetic fields around the longitudinal axis of each beam in a multi-beam electron beam device. The magnetic field symmetry is independent of beam voltage, beam current, and applied magnetic field strength. A flux equalizer assembly is positioned between the cathodes and anodes, near the cathodes of the device. This assembly includes a ferromagnetic flux plate that is entirely contained within the magnetic focusing circuit. The flux plate features apertures for each beam and includes flux equalization gaps that create perturbations in the magnetic field. These gaps counteract the asymmetry caused by the off-axis position of the beam, effectively producing a locally varying reluctance that mitigates magnetic field asymmetry. The flux equalizer assembly plays a crucial role in preventing beam twist and ensuring that all electron beams remain linear.
Career Highlights
Throughout his career, Friedlander has worked with prominent companies such as Communications & Power Industries, Inc. and Varian Associates, Inc. His experience in these organizations has contributed to his expertise in the field of electron beam technology.
Collaborations
Friedlander has collaborated with various professionals, including Mark J Cattelino, enhancing the innovation process through teamwork and shared expertise.
Conclusion
Fred I Friedlander is a distinguished inventor whose work in electron beam technology has led to significant advancements in the field. His patents reflect a deep understanding of magnetic focusing and its applications, making him a valuable contributor to technological innovation.
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