Location History:
- Portland, OR (US) (2004)
- Hillsboro, OR (US) (2006)
Company Filing History:
Years Active: 2004-2006
Title: Innovations by David S Jun
Introduction
David S Jun is an accomplished inventor based in Portland, OR. He holds a total of 4 patents that showcase his expertise in the field of electron beam systems. His innovative designs focus on enhancing efficiency and performance in various applications.
Latest Patents
One of his notable patents is the "Low Power Schottky Emitter." This invention features a low input power consumption, compact thermal field emitter that is particularly suitable for use in electron beam systems. The design significantly reduces heat loss by minimizing heat transfer to the base. To achieve this, high electrical resistivity and low thermal conductivity materials are utilized for the construction of the filament posts and filaments. This innovative approach further reduces heat loss and input current requirements. Additionally, the base includes counterbores that effectively reduce the heat conduction path between the filament posts and the base, moving the contact area further from the filament.
Another significant patent is the "High Angular Intensity Schottky Electron Point Source." This invention produces an electron emitter by applying a work function lowering material that does not require extensive heating before it can function effectively. By eliminating the need for extensive heating, the design allows for a small radius, highly tapered emitter tip that retains its shape, consistently producing high angular intensity at reasonable output power levels.
Career Highlights
David S Jun has made significant contributions to the field of electron beam technology through his innovative patents. His work has been instrumental in advancing the efficiency and effectiveness of electron beam systems.
Collaborations
David has collaborated with notable colleagues such as Gerald G Magera and Gregory A Schwind, further enhancing the impact of his inventions.
Conclusion
David S Jun's contributions to the field of electron beam systems through his innovative patents demonstrate his commitment to advancing technology. His work continues to influence the industry and inspire future innovations.