Sapporo, Japan

Hisayoshi Matsushima

This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Japan Atomic Energy Agency. Active years: 2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisayoshi Matsushima. Retrieved from https://idiyas.com/inventor/hisayoshi-matsushima

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

USPTO Granted Patents = 1 

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1


Company Filing History:


Years Active: 2026

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1 patent (USPTO):Explore Patents

Title: Hisayoshi Matsushima: Innovator in Hydrogen Isotope Concentration

Introduction

Hisayoshi Matsushima is a notable inventor based in Sapporo, Japan. He has made significant contributions to the field of hydrogen isotope concentration, particularly through his innovative patent. His work focuses on the efficient extraction of deuterium from mixed gases, which has important implications for various scientific and industrial applications.

Latest Patents

Matsushima holds a patent for a hydrogen isotope concentrating apparatus. This invention is designed to obtain deuterium in a gas state from a mixed gas of hydrogen and deuterium at a low cost. The apparatus utilizes a first electrode made of a hydrogen-permeable metal, such as palladium (Pd). H ions and D ions permeate through the first electrode and flow to a second electrode in a proton conduction layer. This process enhances the H/D composition ratio in the product gas, enriching the deuterium component in the exhaust gas.

Career Highlights

Matsushima is affiliated with the Japan Atomic Energy Agency, where he continues to advance research in hydrogen isotope technologies. His work has been instrumental in developing methods that improve the efficiency and cost-effectiveness of deuterium extraction.

Collaborations

Matsushima has collaborated with esteemed colleagues such as Satoshi Yasuda and Hidehito Asaoka. Their combined expertise has contributed to the success of various projects within the agency.

Conclusion

Hisayoshi Matsushima's innovative work in hydrogen isotope concentration exemplifies the importance of advancements in energy and materials science. His contributions continue to pave the way for future developments in this critical field.

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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