Norimitsu Nishikawa

Title: Norimitsu Nishikawa: Innovator in Analog-to-Digital Conversion Technology

Introduction

Norimitsu Nishikawa is a prominent inventor based in Ohme, Japan. He has made significant contributions to the field of analog-to-digital conversion technology. With a total of 2 patents, his work focuses on improving the efficiency and performance of digital signal processing.

Latest Patents

Nishikawa's latest patents include a converter and offset adjustor, as well as a portable communication terminal unit. His innovative approach drastically reduces the number of current sources and switches necessary for multiple unit D/A converters. This reduction minimizes parasitic capacitance coupled to current output lines. By converting a plurality of digital signals into analog currents, he synthesizes the currents to correspond to the weights of the input digital signals. Additionally, he has developed an over-sampling analog-to-digital converter that utilizes a current switching circuit to enhance performance.

Career Highlights

Nishikawa is currently employed at Hitachi, Ltd., where he continues to advance his research and development efforts. His work has been instrumental in creating more efficient electronic devices that rely on precise analog-to-digital conversion.

Collaborations

Some of his notable coworkers include Kazuo Yamakido and Takao Okazaki. Their collaborative efforts have contributed to the success of various projects within the company.

Conclusion

Norimitsu Nishikawa's innovative contributions to analog-to-digital conversion technology have established him as a key figure in the field. His patents reflect a commitment to enhancing electronic performance and efficiency.