Ryuji Nakamichi

Title: Inventor Profile: Ryuji Nakamichi

Introduction

Ryuji Nakamichi is a prominent inventor based in Kanagawa, Japan, known for his contributions to the field of battery technology. With a total of two patents to his name, Nakamichi's innovations focus on enhancing the functionality and efficiency of secondary batteries, making them safer and more cost-effective.

Latest Patents

Ryuji Nakamichi's latest patents include:

1. **Battery Pack, Battery Protection Processing Apparatus and Control Method Thereof** - This invention aims to stably implement a protection function of a secondary battery primarily under software control. It is designed to reduce circuit installation area, parts costs, and power consumption. An AD converter outputs a voltage value between the positive and negative electrodes of a secondary battery. Based on this voltage value, a microcontroller determines the state of the battery, whether it is in overcharge, normal operation, or over-discharge states. The microcontroller then controls the operations of discharge current cutoff means and charge current cutoff means via a FET driver. Moreover, if an overcurrent state is detected based on the charge and discharge current size, an overcurrent detection circuit enables the discharge current cutoff means to act first, prioritizing safety.

2. **Battery Pack, Battery Protection Processing Apparatus, and Startup Control Method of the Battery Protection Processing Apparatus** - Similar to the previous patent, this invention also focuses on a battery pack that implements a protection function under software control. It efficiently reduces circuit installation areas and parts costs. This battery pack includes discharge and charge current cutoff means, which can selectively interrupt the respective currents based on inter-electrode voltage. The device executes an initialization process at a critical voltage to start the protection process. Furthermore, it defines operational thresholds to enhance safety and performance at varying voltage levels.

Career Highlights

Ryuji Nakamichi has made significant contributions during his career, particularly through his collaborations with leading technology companies. He worked with **Sony Corporation**, where he was involved in cutting-edge developments, and **Maxim Japan Co., Ltd.**, further expanding his expertise and influence in battery technology.

Collaborations

Throughout his career, Ryuji Nakamichi collaborated with esteemed colleagues, including Hideyuki Sato and Yukio Tsuchiya. These collaborations have enabled him to push the boundaries of innovation within the battery technology space, fostering an environment of creativity and collaboration.

Conclusion

Ryuji Nakamichi stands out as a noteworthy inventor in the realm of battery technology. His patents highlight a commitment to improving the efficiency, safety, and cost-effectiveness of secondary batteries. Nakamichi's work will undoubtedly impact the future of battery technology, paving the way for advancements in various applications.