Kyoto, Japan

Hidefumi Hasegawa

This inventor holds 5 USPTO granted patents and 3 published patent applications and 4 EPO patents. Top assignee: Gs Yuasa International Ltd.. Active years: 2013-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hidefumi Hasegawa. Retrieved from https://idiyas.com/inventor/hidefumi-hasegawa

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

USPTO Granted Patents = 5 

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.0

ph-index = 2

Forward Citations = 13(Granted Patents)


Company Filing History:


Years Active: 2013-2019

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5 patents (USPTO):Explore Patents

Title: Innovations of Hidefumi Hasegawa

Introduction

Hidefumi Hasegawa is a notable inventor based in Kyoto, Japan. He has made significant contributions to the field of energy storage technology. With a total of 5 patents to his name, Hasegawa's work focuses on enhancing the efficiency and functionality of energy storage devices.

Latest Patents

Hasegawa's latest patents include an energy storage device, an energy storage apparatus, and an automobile. The energy storage device features a negative electrode with a composite layer and a separator that enhances its performance. The design includes a positive electrode and a separator with an insulation layer, which is strategically placed to optimize energy storage. Additionally, his electric storage device incorporates a nonaqueous electrolyte solution containing lithium difluorobis(oxalato)phosphate, further advancing the technology in this field.

Career Highlights

Hasegawa is currently associated with GS Yuasa International Ltd., a company known for its innovations in battery technology. His work at GS Yuasa has positioned him as a key player in the development of advanced energy storage solutions.

Collaborations

Throughout his career, Hasegawa has collaborated with talented individuals such as Tomonori Kako and Katsushi Nishie. These collaborations have contributed to the successful development of his innovative patents.

Conclusion

Hidefumi Hasegawa's contributions to energy storage technology reflect his dedication to innovation and excellence. His patents continue to influence the industry and pave the way for future advancements in energy solutions.

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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