Koichi Okiyama

20 papers and 947 indexed citations i.

About

Koichi Okiyama is a scholar working on Neurology, Epidemiology and Surgery. According to data from OpenAlex, Koichi Okiyama has authored 20 papers receiving a total of 947 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Neurology, 8 papers in Epidemiology and 4 papers in Surgery. Recurrent topics in Koichi Okiyama’s work include Traumatic Brain Injury and Neurovascular Disturbances (10 papers), Intracranial Aneurysms: Treatment and Complications (6 papers) and Traumatic Brain Injury Research (4 papers). Koichi Okiyama is often cited by papers focused on Traumatic Brain Injury and Neurovascular Disturbances (10 papers), Intracranial Aneurysms: Treatment and Complications (6 papers) and Traumatic Brain Injury Research (4 papers). Koichi Okiyama collaborates with scholars based in United States, Japan and United Kingdom. Koichi Okiyama's co-authors include Douglas H. Smith, Tracy K. McIntosh, Mark J. Thomas, Thomas A. Gennarelli, DH Smith, William F. White, Tracy K. McIntosh, Roger P. Simon, M.J. Leach and K. Richter and has published in prestigious journals such as Journal of Neuroscience, Brain Research and Journal of Neurochemistry.

In The Last Decade

Co-authorship network of co-authors of Koichi Okiyama i

Fields of papers citing papers by Koichi Okiyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Koichi Okiyama

Since Specialization
Citations

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