Location History:
- Sakura, JP (1986)
- Ibaraki, JP (1990)
Company Filing History:
Years Active: 1986-1990
Title: **Innovator Profile: Chuhei Oshima**
Introduction
Chuhei Oshima is a notable inventor based in Ibaraki, Japan, recognized for his contributions to the field of electron gun technology. With a total of two patents, Oshima's work demonstrates innovation and precision in the design and application of field emission type electron guns.
Latest Patents
One of his latest patents describes a field emission type electron gun, which includes a cathode, an anode positioned opposite the cathode, and a filament set at an angle above the anode. This setup is designed to heat the anode within a vacuum container that houses all vital components. Notably, the anode features an elongated body with a central through hole, and a control electrode near the anode that allows for the concentration of an electron beam. Moreover, Oshima's patent includes mechanisms that render the control electrode's electric potential negative relative to that of the anode, enhancing the electron beam focus.
The second patent also describes a field emission type electron gun, but it comprises multiple anodes aligned in series, with a filament specifically positioned before the first anode to act both as a heating element and a gas expelling member. This innovative approach highlights the versatility of the design in various applications.
Career Highlights
Oshima has dedicated his career to advancing technologies in electron emission, working primarily at the National Institute for Research in Inorganic Materials. His role in this prestigious organization underscores his commitment to innovation and research in the scientific community.
Collaborations
Throughout his career, Chuhei Oshima has collaborated with several prominent researchers, including Yoshio Ishizawa and Susumu Aoki. These partnerships have likely enriched his research endeavors, fostering a collaborative environment that encourages groundbreaking discoveries.
Conclusion
Chuhei Oshima stands out as a significant inventor in the field of electron beam technology. His contributions through his patents not only reflect his technical expertise but also his ability to innovate within his field. As industry needs evolve, inventors like Oshima continue to play a vital role in shaping technological advancements.