Yoshimi Shoji

Title: Innovations by Yoshimi Shoji

Introduction

Yoshimi Shoji is a notable inventor based in Takahama, Japan. She has made significant contributions to the field of battery technology, holding a total of 3 patents. Her work focuses on improving the accuracy of battery charge level detection, which is crucial for the efficiency and reliability of battery systems.

Latest Patents

One of her latest patents is a battery charge level detecting device. This device estimates the charge level of a battery in the range of 20% to 80%, where the charge level does not appear in the terminal voltage. The battery ECU integrates the currents of charge and discharge to provide an accurate estimation. When the ignition key is turned on, the motor generators are activated, and the generated electric power is stored in the battery. Once the terminal voltage reflects the charge level, the calculation is performed based on current and voltage. Calibration occurs when the charge level reaches 80%, ensuring accuracy even under heavy current conditions.

Another significant patent is a method and device for detecting the state of charge of a battery assembly. This invention addresses the variation of charged amounts among battery blocks. By determining the movable range of the charged amount and detecting the current position on this scale, the state of charge is accurately assessed. This method allows for optimal charge and discharge control based on the detected state of charge.

Career Highlights

Yoshimi Shoji has worked with prominent companies in the industry, including Toyota Motor Corporation and Matsushita Electric Industrial Co., Ltd. Her experience in these organizations has contributed to her expertise in battery technology and innovation.

Collaborations

Throughout her career, Yoshimi has collaborated with notable colleagues such as Yoshiaki Kikuchi and Fumihiko Asakawa. These partnerships have fostered a creative environment that has led to significant advancements in her field.

Conclusion

Yoshimi Shoji's contributions to battery technology through her innovative patents demonstrate her commitment to enhancing the efficiency and reliability of battery systems. Her work continues to influence the industry and pave the way for future advancements.