Location History:
- Saitama, JP (1993 - 2011)
- Tsurugashima, JP (1996 - 2011)
Company Filing History:
16 out of 2,861 
11 out of 2,646 
1 out of 372 
Years Active: 1993-2011
Title: Innovations of Nobuyasu Negishi: A Patent Pioneer in Electron Emission Technology
Introduction
Nobuyasu Negishi, residing in Tsurugashima, Japan, is an accomplished inventor with a remarkable portfolio of 27 patents. His groundbreaking work primarily focuses on electron emitting devices and related technologies, contributing significantly to advancements in display apparatuses.
Latest Patents
Among his latest patents, Negishi has developed an innovative electron emitting device that includes an amorphous electron supply layer. This device features an insulating layer atop the electron supply layer and an electrode positioned on the insulating layer. When an electric field is applied, the device effectively emits electrons. A distinctive aspect of his design is the concave portion created by notching the electrode and insulating layer to expose the electron supply layer. Additionally, a carbon layer covers the electrode and concave area, ensuring contact with the exposed surface of the electron supply layer.
Furthermore, he has devised a driving method for an electron emission apparatus, which comprises multiple emission devices that utilize a silicon-based electron supply layer. This method includes steps for supplying power and reactivating the devices, allowing for efficient electron emission from the apparatus.
Career Highlights
Negishi has had a notable career with esteemed companies such as Pioneer Electronic Corporation and Pioneer Corporation. His tenure at these organizations has provided him with a platform to innovate and advance his research in electron emission technologies.
Collaborations
Throughout his career, Negishi has collaborated with other esteemed inventors, including Takamasa Yoshikawa and Kiyohide Ogasawara. These partnerships have fostered an environment of creativity and enhanced the development of his patents and inventions.
Conclusion
Nobuyasu Negishi's contributions to the field of electron emission technology exemplify the impact of innovative thinking and patent development. With 27 patents to his name, his work continues to influence the design and functionality of modern display technologies. His career and collaborations reflect a commitment to advancing the frontier of electrical engineering and invention.
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.