Company Filing History:
Years Active: 1984-1994
Title: Isamu Sanpei: Innovator in Semiconductor Technology
Introduction
Isamu Sanpei is a notable inventor based in Kitaibaraki, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 3 patents. His work focuses on innovative methods and devices that enhance the performance and efficiency of semiconductor components.
Latest Patents
Sanpei's latest patents include a turn-off type semiconductor device and a gate turn-off thyristor. The turn-off type semiconductor device features an n-type emitter layer divided into multiple elements by trenches. A silicide layer of a high melting point metal is positioned on a p-type layer adjacent to the individual elements of the n-type emitter layer at the bottom of each trench. A gate electrode surrounds these elements, and an insulator fills the trenches, providing a robust structure for improved performance.
The gate turn-off thyristor patent describes a buried gate type design that incorporates a low-resistance layer within a cathode base layer. This layer contains numerous small bores beneath a cathode emitter layer, optimizing the flow of carriers and reducing on-state voltage. The design allows for selective current flow through the main thyristor section, enhancing the device's interrupting capacity.
Career Highlights
Isamu Sanpei is currently employed at Hitachi, Ltd., where he continues to develop innovative semiconductor technologies. His work has been instrumental in advancing the capabilities of electronic devices, making them more efficient and reliable.
Collaborations
Sanpei has collaborated with notable coworkers, including Yukimasa Satou and Tsutomu Yatsuo. Their combined expertise has contributed to the successful development of advanced semiconductor technologies.
Conclusion
Isamu Sanpei's contributions to semiconductor technology through his patents and work at Hitachi, Ltd. highlight his role as a key innovator in the field. His inventions continue to influence the development of efficient electronic devices.
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.