Fumihiko Usui

241 total papers · 4.2k total citations
62 papers, 955 citations indexed

About

Fumihiko Usui is a scholar working on Astronomy and Astrophysics, Spectroscopy and Molecular Biology. According to data from OpenAlex, Fumihiko Usui has authored 62 papers receiving a total of 955 indexed citations (citations by other indexed papers that have themselves been cited), including 48 papers in Astronomy and Astrophysics, 11 papers in Spectroscopy and 7 papers in Molecular Biology. Recurrent topics in Fumihiko Usui’s work include Astro and Planetary Science (33 papers), Stellar, planetary, and galactic studies (32 papers) and Planetary Science and Exploration (24 papers). Fumihiko Usui is often cited by papers focused on Astro and Planetary Science (33 papers), Stellar, planetary, and galactic studies (32 papers) and Planetary Science and Exploration (24 papers). Fumihiko Usui collaborates with scholars based in Japan, South Korea and United States. Fumihiko Usui's co-authors include Masateru Ishiguro, Sunao Hasegawa, Thomas Müller, Takafumi Ootsubo, Munetaka Ueno, Takashi Onaka, D. Kuroda, Hideo Matsuhara, J. Watanabe and Yuki Sarugaku and has published in prestigious journals such as SHILAP Revista de lepidopterología, The Astrophysical Journal and Analytical Biochemistry.

In The Last Decade

Co-authorship network of co-authors of Fumihiko Usui

This figure shows the co-authorship network connecting the top 25 collaborators of Fumihiko Usui. A scholar is included among the top collaborators of Fumihiko Usui 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 Fumihiko Usui. Fumihiko Usui is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Fumihiko Usui

58 papers receiving 917 citations

Fields of papers citing papers by Fumihiko Usui

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Fumihiko Usui. 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 Fumihiko Usui. The network helps show where Fumihiko Usui may publish in the future.

Countries citing papers authored by Fumihiko Usui

Since Specialization
Citations

This map shows the geographic impact of Fumihiko Usui'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 Fumihiko Usui with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Fumihiko Usui 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