Koichiro Oshima

853 total papers · 25.3k total citations
562 papers, 19.2k citations indexed

About

Koichiro Oshima is a scholar working on Organic Chemistry, Inorganic Chemistry and Pharmaceutical Science. According to data from OpenAlex, Koichiro Oshima has authored 562 papers receiving a total of 19.2k indexed citations (citations by other indexed papers that have themselves been cited), including 534 papers in Organic Chemistry, 118 papers in Inorganic Chemistry and 66 papers in Pharmaceutical Science. Recurrent topics in Koichiro Oshima’s work include Catalytic Cross-Coupling Reactions (145 papers), Asymmetric Synthesis and Catalysis (144 papers) and Catalytic C–H Functionalization Methods (135 papers). Koichiro Oshima is often cited by papers focused on Catalytic Cross-Coupling Reactions (145 papers), Asymmetric Synthesis and Catalysis (144 papers) and Catalytic C–H Functionalization Methods (135 papers). Koichiro Oshima collaborates with scholars based in Japan, Malaysia and United States. Koichiro Oshima's co-authors include Hideki Yorimitsu, Hiroshi Shinokubo, Kiitirô Utimoto, Hitosi Nozaki, Seijiro Matsubara, Koji Hirano, Kyoko Nozaki, Hirohisa Ohmiya, Kazuhiko Takai and Atsushi Inoue and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and Chemical Communications.

In The Last Decade

Co-authorship network of co-authors of Koichiro Oshima

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

Koichiro Oshima

555 papers receiving 18.6k citations

Fields of papers citing papers by Koichiro Oshima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Koichiro Oshima

Since Specialization
Citations

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