Toyohiro Hirai

318 papers and 6.8k indexed citations i.

About

Toyohiro Hirai is a scholar working on Pulmonary and Respiratory Medicine, Physiology and Oncology. According to data from OpenAlex, Toyohiro Hirai has authored 318 papers receiving a total of 6.8k indexed citations (citations by other indexed papers that have themselves been cited), including 220 papers in Pulmonary and Respiratory Medicine, 94 papers in Physiology and 41 papers in Oncology. Recurrent topics in Toyohiro Hirai’s work include Chronic Obstructive Pulmonary Disease (COPD) Research (103 papers), Respiratory Support and Mechanisms (51 papers) and Asthma and respiratory diseases (44 papers). Toyohiro Hirai is often cited by papers focused on Chronic Obstructive Pulmonary Disease (COPD) Research (103 papers), Respiratory Support and Mechanisms (51 papers) and Asthma and respiratory diseases (44 papers). Toyohiro Hirai collaborates with scholars based in Japan, United States and Canada. Toyohiro Hirai's co-authors include Michiaki Mishima, Shigeo Muro, Kazuo Chin, Isao Ito, Yasutaka Nakano, Susumu Satô, Koichi Nishimura, Hisako Matsumoto, Akio Niimi and Tsuyoshi Oguma and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Nature Communications and The Journal of Immunology.

In The Last Decade

Co-authorship network of co-authors of Toyohiro Hirai i

Fields of papers citing papers by Toyohiro Hirai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Toyohiro Hirai

Since Specialization
Citations

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