Hyogo, Japan

Tomoharu Arai

This inventor holds 4 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignee: Sanyo Electric Co., Ltd.. Active years: 2019-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomoharu Arai. Retrieved from https://idiyas.com/inventor/tomoharu-arai-132epx9i

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

Calculating rank
USPTO Granted Patents = 4 

% Patents Active = 100.0


Average Co-Inventor Count = 4.7

ph-index = 1


Company Filing History:


Years Active: 2019-2025

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4 patents (USPTO):Explore Patents

Title: Tomoharu Arai: Innovator in Non-Aqueous Electrolyte Secondary Batteries

Introduction

Tomoharu Arai is a prominent inventor based in Hyogo, Japan. He has made significant contributions to the field of battery technology, particularly in the development of non-aqueous electrolyte secondary batteries. With a total of 4 patents to his name, Arai's work has been instrumental in advancing energy storage solutions.

Latest Patents

Arai's latest patents include a method for producing non-aqueous electrolyte secondary batteries and the batteries themselves. The production method involves forming a wound electrode body and a flat wound electrode body through pressing. These components are then integrated with a battery case and a cover member. A non-aqueous electrolyte solution is injected through a liquid injection port, which is sealed after the injection. This process results in a non-aqueous electrolyte secondary battery that undergoes inspection and is pressed into a predetermined state. If it meets the inspection specifications, it is deemed ready for shipment. Additionally, Arai has developed a battery pack that consists of multiple prismatic secondary batteries, each featuring a flat wound electrode body and a sealing plate.

Career Highlights

Tomoharu Arai is associated with Sanyo Electric Co., Ltd., where he has been able to apply his innovative ideas in battery technology. His work has contributed to the company's reputation as a leader in the electronics and energy sectors.

Collaborations

Arai has collaborated with notable coworkers, including Tetsuya Okado and Masashi Muraoka. Their combined expertise has further enhanced the development of advanced battery technologies.

Conclusion

Tomoharu Arai's contributions to the field of non-aqueous electrolyte secondary batteries highlight his role as an influential inventor. His innovative methods and designs continue to shape the future of energy storage 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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