Hitoshi Suwa

Title: Hitoshi Suwa: An Innovator in Neural Network Technology

Introduction

Hitoshi Suwa, an accomplished inventor based in Osaka, Japan, holds a remarkable portfolio of seven patents. His inventions primarily focus on advancements in neural network computations and nonvolatile semiconductor storage devices, demonstrating significant contributions to the fields of electronics and computing.

Latest Patents

Among his notable patents, two stand out for their innovative approaches. The first patent addresses a neural network computation circuit that includes a semiconductor memory element. This invention enables the storage of connection weight coefficients in a memory array used for neural network computation. It features a word line drive circuit that drives a word line corresponding to input data and a column selection circuit that connects computation circuit bit lines to the relevant connection weight coefficient. The computation circuit effectively determines the sum of cell currents flowing in the bit lines, with results stored for subsequent processing in the network’s next layer.

The second patent pertains to a bitwise bidirectionally rewritable nonvolatile semiconductor storage device. This device is designed for high-speed data rewriting while enhancing endurance and data retention characteristics of memory cells. The innovative structure includes a logic circuit to manage rewrite conditions and compare read-out data with prepared write data. By verifying the data rewrite, this invention effectively protects already rewritten memory cells from unnecessary additional writes.

Career Highlights

Hitoshi Suwa’s distinguished career includes significant roles at prominent companies such as Matsushita Electric Industrial Co., Ltd. and Tower Semiconductor Ltd. His work has consistently centered on pushing the boundaries of innovative technologies, particularly in the realm of memory and computation circuits.

Collaborations

Throughout his career, Suwa has collaborated with talented professionals, including Yasuhiro Tomita and Manabu Komiya. Their combined expertise has contributed to the successful development of cutting-edge technologies and patents.

Conclusion

Hitoshi Suwa’s inventive contributions significantly impact the fields of neural networks and nonvolatile semiconductor storage. With a total of seven patents and a strong career in notable companies, he continues to shape the landscape of innovation in technology. His groundbreaking work not only advances current technologies but also paves the way for future innovations in the industry.