Kyoto, Japan

Seiji Takai

This inventor holds 4 USPTO granted patents and 1 published patent application. Top assignee: Gs Yuasa International Ltd.. Active years: 2021-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiji Takai. Retrieved from https://idiyas.com/inventor/seiji-takai-a22cmsop

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 4 

% Patents Active = 75.0

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2021-2026

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4 patents (USPTO):Explore Patents

Title: Innovations by Seiji Takai in Battery Management Technology

Introduction

Seiji Takai is a notable inventor based in Kyoto, Japan, recognized for his contributions to battery management technology. With a total of two patents to his name, Takai has developed innovative solutions that enhance the efficiency and reliability of energy storage systems.

Latest Patents

Takai's latest patents include a battery management device and an energy storage apparatus. The battery management device is designed to manage an energy storage device connected to a shunt resistor. It features a current measurement unit that accurately measures the current flowing through the shunt resistor using a pair of signal wires. Additionally, it includes a connecting wire that links the signal wire to a reference potential source via an opening/closing switch. A determination unit is also integrated to identify any failures in the connection between the signal wires based on current changes when the switch is operated.

Another significant patent involves a measurement apparatus for an electrochemical element. This device is connected to a terminal part with a load and includes a current limitation unit, a current sensor, and a processing unit. The current limitation unit regulates power supply based on the voltage difference between the electrochemical element and the terminal part. The processing unit measures the offset error of the current sensor during specific voltage conditions, ensuring accurate performance.

Career Highlights

Seiji Takai is currently employed at GS Yuasa International Ltd., a company renowned for its advancements in battery technology and energy solutions. His work focuses on developing innovative devices that improve battery management and measurement systems.

Collaborations

Takai collaborates with talented colleagues, including Yuki Imanaka and Masayuki Imura, who contribute to the research and development of cutting-edge technologies in the field of energy storage.

Conclusion

Seiji Takai's innovative work in battery management technology showcases his commitment to enhancing energy storage solutions. His patents reflect a deep understanding of the complexities involved in battery systems, positioning him as a key figure in the industry.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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