Location History:
- Sakura, JP (1986)
- Ibaraki, JP (1990)
Company Filing History:
Years Active: 1986-1990
Title: Yoshio Ishizawa: Innovator in Field Emission Technology
Introduction
Yoshio Ishizawa, a notable inventor based in Ibaraki, Japan, has made significant contributions to the field of electron gun technology. With a total of two patents to his name, Ishizawa’s work focuses on enhancing the efficiency and performance of field emission type electron guns, which are crucial components in various electronic applications.
Latest Patents
Ishizawa's latest inventions include two variations of field emission type electron guns. The first patent features an electron gun comprised of a cathode and an anode arranged in opposition. This design also incorporates a filament that heats the anode and a control electrode for concentrating the electron beam effectively. The configuration allows the electric potential of the control electrode to remain negative relative to the anode, facilitating better concentration of the electron beam towards the anode's top end.
The second patent introduces a different approach to the field emission type electron gun, utilizing a plurality of anodes in series opposing the cathode. This design includes a filament that serves dual purposes: acting as both a gas expelling member and an anode. The symmetrical placement of the filament directly before the first anode enhances the overall efficiency of the electron gun within its vacuum tube environment.
Career Highlights
Yoshio Ishizawa is affiliated with the National Institute for Researches in Inorganic Materials, where he continues to explore innovative technologies in the field of electron guns. His research has expanded the understanding and application of field emission technologies, making a mark on the scientific community and various industries.
Collaborations
Throughout his career, Ishizawa has worked alongside esteemed colleagues, including Chuhei Oshima and Susumu Aoki. These collaborations have facilitated the sharing of ideas and expertise, leading to advancements in the development of cutting-edge technologies.
Conclusion
Yoshio Ishizawa stands out as a prominent figure in the realm of electron gun technology. His innovative patents reflect a commitment to advancing electronic devices and improving their efficiency. With ongoing contributions to research and development, Ishizawa continues to inspire future innovations in this critical field.