Iruma, Japan

Keizo Tomokuni

This inventor holds 1 USPTO granted patent. Top assignee: Asahi Kasei Kogyo Kabushiki Kaisha. Active years: 2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keizo Tomokuni. Retrieved from https://idiyas.com/inventor/keizo-tomokuni

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 2001

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1 patent (USPTO):Explore Patents

Title: Keizo Tomokuni: Inventor in Hydrogen Production Technology.

Introduction

Keizo Tomokuni is an inventor associated with Iruma, Japan. His work includes a patented method for producing hydrogen-containing gas for fuel cells.

Latest Patents

The available information lists one patent for Tomokuni: Method for Producing Hydrogen-Containing Gas for Fuel Cell. The invention describes adding an oxygen-containing gas to hydrogen-containing gas that includes carbon monoxide, then passing the mixture over a ruthenium-based catalyst. The catalyst’s specified carbon monoxide adsorption properties enable it to oxidize and remove carbon monoxide, helping produce gas suitable for fuel-cell use. Tomokuni is credited with 1 patent.

Career Highlights

Tomokuni is associated with Asahi Kasei Kogyo Kabushiki Kaisha, a company involved in the patent record. His listed invention addresses a gas-cleaning step in hydrogen production through the reforming of organic compounds.

Collaborations

The listed coworkers associated with Tomokuni include Yohei Fukuoka and Hitoshi Nakajima.

Conclusion

Keizo Tomokuni’s recorded patent focuses on removing carbon monoxide from hydrogen-containing gas with a ruthenium-based catalyst, supporting the production of fuel-cell gas.

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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