Location History:
- Kadoma, JA (1976)
- Kawasaki, JP (1979 - 1980)
- Kanagawa, JP (1986)
- Isehara, JP (1986 - 1993)
Company Filing History:
27 out of 27,375 
1 out of 115 Years Active: 1976-1993
Title: Kaoru Tomii: Innovator in Electron Emission Technologies
Introduction
Kaoru Tomii, an accomplished inventor hailing from Isehara, Japan, has made significant contributions to the field of electron emission devices. With a remarkable portfolio of 28 patents, his innovations have paved the way for advancements in various technological applications.
Latest Patents
Among Tomii's latest inventions is the **Electron Field Emission Device**. This device serves as an electron emission source in numerous applications utilizing electron beams. It features a cathode layer with an edge and a control electrode that is spaced and electrically insulated. When a voltage is applied, an electric field is concentrated at the edge of the cathode, leading to electron emission. This design simplifies the manufacturing process while enhancing yield due to the absence of a needle tip.
Another notable patent is the **MIM Cold-Cathode Electron Emission Elements**. This invention involves an MIM type of electron emission element with a thin insulating film beneath the electron emission region of a metal layer. The metal layer consists of an array of thick and thin portions, allowing for improved efficiency and uniformity. The thick portions provide low resistance, applying the supply voltage to the thin sections, which can be made thin enough to maximize electron emission.
Career Highlights
Tomii's career has been bolstered by his tenure at prominent companies such as Matsushita Electric Industrial Co., Ltd. and Matsushita Electrical Industrial Co., Ltd. His work in these organizations has significantly influenced the development of electron emission technologies, showcasing his exceptional innovation skills.
Collaborations
Throughout his career, Tomii has had the privilege of collaborating with brilliant minds in the industry, including his coworkers Hiroshi Miyama and Yoshikazu Kawauchi. These partnerships have further propelled his innovative endeavors and contributed to the advancement of electron emission devices.
Conclusion
In summary, Kaoru Tomii stands out as a noteworthy inventor with a substantial impact on the field of electron emission technologies. His patents, particularly in electron field emission devices and MIM electron emission elements, reflect his commitment to innovation and excellence. As technology continues to evolve, Tomii's contributions will undoubtedly remain relevant and influential.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.