Osaka, Japan

Toshio Shigematsu

This inventor holds 11 USPTO granted patents and 1 published patent application, plus 6 CIPO patents and 7 EPO patents. Top assignees: Sumitomo Electric Industries, Limited, The Kansai Electric Power Co., Inc.. Active years: 1990-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshio Shigematsu. Retrieved from https://idiyas.com/inventor/toshio-shigematsu

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

USPTO Granted Patents = 11 

% Patents Active = 63.6

 

 

Average Co-Inventor Count = 3.8

ph-index = 4

Forward Citations = 154(Granted Patents)


Company Filing History:


Years Active: 1990-2018

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11 patents (USPTO):Explore Patents

Title: The Innovations of Toshio Shigematsu

Introduction

Toshio Shigematsu is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of energy storage, particularly through his innovative work on redox flow batteries and membranes. With a total of 11 patents to his name, Shigematsu continues to push the boundaries of technology.

Latest Patents

One of his latest patents is a redox flow cell membrane. This membrane features a porous structure with a mean flow pore size of not more than 100 nm and a thickness of not more than 500 µm. It is designed to achieve an air flow rate of not less than 0.1 ml/s·cm. When utilized in a V–V-based redox flow cell, the porous membrane is optimized to have a mean flow pore size of not more than 30 nm. Another notable patent is for a redox flow battery. This battery operates by charging and discharging through the supply of positive and negative electrode electrolytes stored in separate tanks. The positive electrode electrolyte contains a manganese ion as the active material, and the design includes a stirring mechanism for optimal performance.

Career Highlights

Throughout his career, Toshio Shigematsu has worked with esteemed companies such as Sumitomo Electric Industries, Limited and Kansai Electric Power Co., Inc. His experience in these organizations has allowed him to refine his expertise in energy technologies and contribute to groundbreaking advancements.

Collaborations

Shigematsu has collaborated with notable colleagues, including Takahiro Kumamoto and Yongrong Dong. These partnerships have fostered a creative environment that has led to innovative solutions in the energy sector.

Conclusion

Toshio Shigematsu's work exemplifies the spirit of innovation in energy storage technology. His patents and collaborations highlight his commitment to advancing the field, making him a significant figure in contemporary invention.

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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