Hiroaki Koga

102 total papers · 1.2k total citations
72 papers, 1.0k citations indexed

About

Hiroaki Koga is a scholar working on Materials Chemistry, Atomic and Molecular Physics, and Optics and Catalysis. According to data from OpenAlex, Hiroaki Koga has authored 72 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Materials Chemistry, 14 papers in Atomic and Molecular Physics, and Optics and 12 papers in Catalysis. Recurrent topics in Hiroaki Koga’s work include Catalytic Processes in Materials Science (30 papers), Catalysis and Oxidation Reactions (10 papers) and Advanced Chemical Physics Studies (10 papers). Hiroaki Koga is often cited by papers focused on Catalytic Processes in Materials Science (30 papers), Catalysis and Oxidation Reactions (10 papers) and Advanced Chemical Physics Studies (10 papers). Hiroaki Koga collaborates with scholars based in Japan, South Korea and Australia. Hiroaki Koga's co-authors include Mitsutaka Okumura, Kohei Tada, Tadao Horiuchi, H. Shimada, Muneaki Imai, Yoshihito Watanabe, Yuko Matsushima‐Hibiya, Ryu Makino, Yuzuru Ishimura and Akihide Hayashi and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Applied Physics Letters and Physical Review B.

In The Last Decade

Co-authorship network of co-authors of Hiroaki Koga

This figure shows the co-authorship network connecting the top 25 collaborators of Hiroaki Koga. A scholar is included among the top collaborators of Hiroaki Koga based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Hiroaki Koga. Hiroaki Koga is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Hiroaki Koga

70 papers receiving 998 citations

Fields of papers citing papers by Hiroaki Koga

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hiroaki Koga. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Hiroaki Koga. The network helps show where Hiroaki Koga may publish in the future.

Countries citing papers authored by Hiroaki Koga

Since Specialization
Citations

This map shows the geographic impact of Hiroaki Koga's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Hiroaki Koga with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hiroaki Koga more than expected).

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar’s output or impact.

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2026