Akihiko Yamada

Title: Akihiko Yamada: Innovator in Battery Technology

Introduction

Akihiko Yamada is a prominent inventor based in Osaka, Japan, known for his significant contributions to battery technology. With a total of eight patents to his name, Yamada has made strides in developing advanced systems for battery state estimation and management.

Latest Patents

Yamada's latest patents include a battery state estimation device and a storage battery system. The battery state estimation device involves setting a reference timing after charging or discharging is stopped. It measures the first timing at which the battery voltage changes by a unit amount and the second timing at which the voltage changes by twice that amount. The ratio of the time differences is used as a voltage change parameter, which helps estimate a stable open circuit voltage for future timings. The storage battery system is designed to accurately calculate the state of charge (SOC) of a battery cell, electric vehicle, or power storage device. It utilizes both current-based and voltage-based SOC calculations, combining them with weighted coefficients to provide a reliable assessment of the battery's status.

Career Highlights

Yamada is currently employed at Sanyo Electric Co., Ltd., where he continues to innovate in the field of battery technology. His work has been instrumental in enhancing the efficiency and reliability of battery systems used in various applications.

Collaborations

Yamada collaborates with notable colleagues, including Hiroshi Yamamoto and Yasuhiko Yokoi, contributing to a dynamic team focused on advancing battery technology.

Conclusion

Akihiko Yamada's contributions to battery technology through his innovative patents and collaborative efforts position him as a key figure in the industry. His work continues to influence the development of efficient and reliable energy storage solutions.