Koichiro Oyama

About

Koichiro Oyama is a scholar working on Astronomy and Astrophysics, Geophysics and Electrical and Electronic Engineering. According to data from OpenAlex, Koichiro Oyama has authored 30 papers receiving a total of 677 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Astronomy and Astrophysics, 11 papers in Geophysics and 9 papers in Electrical and Electronic Engineering. Recurrent topics in Koichiro Oyama’s work include Ionosphere and magnetosphere dynamics (17 papers), Earthquake Detection and Analysis (11 papers) and Plasma Diagnostics and Applications (8 papers). Koichiro Oyama is often cited by papers focused on Ionosphere and magnetosphere dynamics (17 papers), Earthquake Detection and Analysis (11 papers) and Plasma Diagnostics and Applications (8 papers). Koichiro Oyama collaborates with scholars based in Japan, Taiwan and United States. Koichiro Oyama's co-authors include Katsumi Hattori, Masahide Nishihashi, Yoshihiro Kakinami, Xia Yan, Y. I. Chen, Chien‐Hung Lin, C. Y. Chen, Chia‐Hung Chen, Kimihiko Hirao and Shigeto Watanabe and has published in prestigious journals such as Journal of Geophysical Research Atmospheres, Geophysical Research Letters and International Journal of Remote Sensing.

In The Last Decade

Co-authorship network of co-authors of Koichiro Oyama

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

Koichiro Oyama

29 papers receiving 622 citations

Fields of papers citing papers by Koichiro Oyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Koichiro Oyama

Since Specialization

Citations

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