Kazuyuki Yamasaki

Title: Kazuyuki Yamasaki: Innovator in Semiconductor Technology

Introduction

Kazuyuki Yamasaki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 10 patents. His work focuses on enhancing memory devices, which are crucial for modern electronics.

Latest Patents

Yamasaki's latest patents include a semiconductor memory device featuring a multilevel memory cell and a method for manufacturing it. This innovative semiconductor ROM device allows for the secure distinction of data stored in a multilevel mask ROM, which can store three or more levels of data per memory cell. The device incorporates a memory cell with a threshold voltage set according to the amount of ions injected into the channel region of a cell transistor. Additionally, it includes a reference cell for generating a reference current to compare with the current read from the memory cell, along with dummy cells positioned adjacent to the reference cell.

Another notable patent is a semiconductor memory device designed to improve access times in burst mode without increasing chip surface area or power consumption. This device utilizes a latch pulse selection circuit that outputs control signals to different latch groups within a latch circuit. The sense amplifier circuit evaluates data signals, ensuring efficient data processing.

Career Highlights

Throughout his career, Yamasaki has worked with notable companies such as NEC Corporation and Mitsui Petrochemical Industries, Ltd. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.

Collaborations

Yamasaki has collaborated with esteemed colleagues, including Teiichiro Nishizaka and Kimio Yamamoto. These partnerships have fostered a creative environment that has led to groundbreaking advancements in semiconductor devices.

Conclusion

Kazuyuki Yamasaki's contributions to semiconductor technology have significantly impacted the industry. His innovative patents and collaborations highlight his role as a leading inventor in this field.