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2 out of 85 Years Active: 2013-2019
Title: Haruo Kumagai - Innovator in Hydrogen Storage Technologies
Introduction
Haruo Kumagai is a notable inventor based in Sapporo, Japan, recognized for his significant contributions to hydrogen storage technologies. With a total of 2 patents to his name, Kumagai has focused his research on improving hydrogen storage materials, an area crucial for advancing sustainable energy solutions.
Latest Patents
Kumagai's latest innovations include two important patents related to hydrogen storage carbon materials. The first patent details a hydrogen storage carbon material that possesses a carbon structure specifically suited for efficient hydrogen storage. This material features a remarkable ratio of ultramicropore volume to micropore volume of 60% or more. Notably, it demonstrates a distinct second peak in inH-NMR measurement, occurring at a chemical shift ranging from -2 ppm to -20 ppm relative to the gaseous hydrogen reference peak.
The second patent further enhances the field with a hydrogen-storing carbon material characterized by an improved hydrogen storage capacity. Unlike conventional materials, this invention boasts a total pore volume of 0.5 cm/g or more, alongside a mesoporous to microporous volume ratio of 5 or more. Additionally, it may contain a nitrogen content between 0.5 wt % and less than 20 wt %. This innovative carbon material indicates a stable potential of -1.28 V or more when subjected to electrochemical measurement, showcasing its effectiveness when implemented in a three-electrode method.
Career Highlights
Throughout his career, Haruo Kumagai has worked at notable institutions, including Gunma University and Hokkaido University. His experience in these esteemed universities has allowed him to conduct extensive research and collaborate with other professionals in the field of materials science, focusing on innovations that can propel hydrogen storage technology forward.
Collaborations
Kumagai's work is enriched by collaborations with colleagues such as Rieko Kobayashi and Jun-ichi Ozaki. These partnerships have fostered a collective effort to enhance the understanding and capabilities of hydrogen storage materials, leveraging their diverse expertise to push the boundaries of innovation.
Conclusion
Haruo Kumagai's contributions to the field of hydrogen storage are of tremendous significance, occupying a vital role in the shift towards more sustainable energy solutions. By developing advanced carbon materials that maximize hydrogen storage capacity, he continues to pave the way for future innovations in energy technology. With ongoing research and collaboration, Kumagai is set to make even greater strides in this essential domain.