Tokyo, Japan

Seiji Ootsuka

This inventor holds 1 USPTO granted patent. Top assignees: Kajima Corporation, Research Institute of Innovative Technology for the Earth. Active years: 1995.

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

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1

Forward Citations = 16(Granted Patents)


Company Filing History:


Years Active: 1995

Loading Chart...
1 patent (USPTO):Explore Patents

Title: Seiji Ootsuka: Innovator in Hydrogen Production

Introduction

Seiji Ootsuka is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of hydrogen production through innovative processes. His work focuses on utilizing microorganisms to generate hydrogen efficiently while treating wastewater.

Latest Patents

Ootsuka holds a patent for a process for the production of hydrogen by microorganisms. This invention involves treating a substrate, such as wastewater containing organic matter, under anaerobic conditions using sludge compost. The process achieves stable hydrogen generation at a higher efficiency for an extended period, while simultaneously treating wastewater.

Career Highlights

Throughout his career, Seiji Ootsuka has worked with prominent organizations, including the Research Institute of Innovative Technology for the Earth and Kajima Corporation. His experience in these institutions has allowed him to develop and refine his innovative approaches to hydrogen production.

Collaborations

Ootsuka has collaborated with notable colleagues, including Yoshiyuki Ueno and Tatsushi Kawai. These partnerships have contributed to the advancement of his research and the successful implementation of his inventions.

Conclusion

Seiji Ootsuka's work in hydrogen production exemplifies the intersection of innovation and environmental sustainability. His patented process not only enhances hydrogen generation but also addresses wastewater treatment, showcasing the potential for technology to contribute positively to ecological challenges.

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]
Loading…