Kouji Niinobu

Title: Kouji Niinobu: Innovator in Semiconductor Technology

Introduction

Kouji Niinobu is a prominent inventor based in Fukuoka, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work focuses on improving the performance and efficiency of semiconductor devices.

Latest Patents

Niinobu's latest patents include a "Gate turnoff thyristor with reduced gate trigger current." This invention aims to enhance the withstand voltage and ON-state resistance while reducing turn-on loss and improving di/dt resistance. The design features an n buffer layer that is locally exposed on the lower surface of a semiconductor substrate, along with a polysilicon additional resistive layer. This innovative approach effectively reduces the gate trigger current, leading to improved performance without compromising the device's integrity.

Another notable patent is the "Semiconductor thyristor device with recess." This invention involves a semiconductor device where a p layer is formed in an isolating portion, with n-type base layer portions on either side. The design enhances resistance to breakdown and improves the formation accuracy of the p layers, making the device less susceptible to short-circuits.

Career Highlights

Kouji Niinobu is associated with Mitsubishi Denki Kabushiki Kaisha, a leading company in the semiconductor industry. His work has been instrumental in advancing the technology used in various electronic applications.

Collaborations

Throughout his career, Niinobu has collaborated with notable colleagues, including Futoshi Tokunoh and Tsutomu Nakagawa. These collaborations have contributed to the development of innovative semiconductor solutions.

Conclusion

Kouji Niinobu's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in electronic devices and systems.