Takeo Koyama

60 papers and 282 indexed citations i.

About

Takeo Koyama is a scholar working on Ocean Engineering, Plant Science and Control and Systems Engineering. According to data from OpenAlex, Takeo Koyama has authored 60 papers receiving a total of 282 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Ocean Engineering, 8 papers in Plant Science and 6 papers in Control and Systems Engineering. Recurrent topics in Takeo Koyama’s work include Maritime Navigation and Safety (10 papers), Ship Hydrodynamics and Maneuverability (8 papers) and Rice Cultivation and Yield Improvement (7 papers). Takeo Koyama is often cited by papers focused on Maritime Navigation and Safety (10 papers), Ship Hydrodynamics and Maneuverability (8 papers) and Rice Cultivation and Yield Improvement (7 papers). Takeo Koyama collaborates with scholars based in Japan, The Netherlands and United States. Takeo Koyama's co-authors include Madoka Sutoh, Tadakatsu Yoneyama, Hiroyuki Yamato, Kazuhiko Hasegawa, Katsumi Kaneko, T Mochizuki, Akira Marui, Makoto Arai, Junichi Arita and Takuro Wada and has published in prestigious journals such as European Heart Journal, Journal of Vascular Surgery and Bulletin of the Chemical Society of Japan.

In The Last Decade

Co-authorship network of co-authors of Takeo Koyama i

Fields of papers citing papers by Takeo Koyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Takeo Koyama

Since Specialization
Citations

This map shows the geographic impact of Takeo Koyama'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 Takeo Koyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Takeo Koyama 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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2025