Akio Hirai

26 total papers · 445 total citations
16 papers, 345 citations indexed

About

Akio Hirai is a scholar working on Mechanics of Materials, Global and Planetary Change and Aquatic Science. According to data from OpenAlex, Akio Hirai has authored 16 papers receiving a total of 345 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Mechanics of Materials, 5 papers in Global and Planetary Change and 4 papers in Aquatic Science. Recurrent topics in Akio Hirai's work include Hydrocarbon exploration and reservoir analysis (5 papers), Geology and Paleoclimatology Research (3 papers) and Geochemistry and Geologic Mapping (3 papers). Akio Hirai is often cited by papers focused on Hydrocarbon exploration and reservoir analysis (5 papers), Geology and Paleoclimatology Research (3 papers) and Geochemistry and Geologic Mapping (3 papers). Akio Hirai collaborates with scholars based in Japan, United States and Slovakia. Akio Hirai's co-authors include Yoshimichi Kajiwara, Ryoshi Ishiwatari, Kazue Tazaki, Nobuyori Takeda, Kunio Kaiho, Tetsuya Arinobu, Hideki Wada, Nobuaki Niitsuma, Hisatake Okada and Hugh E. G. Morgans and has published in prestigious journals such as Organic Geochemistry, Clays and Clay Minerals and Japanese Journal of Ichthyology.

In The Last Decade

Akio Hirai

16 papers receiving 314 citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Akio Hirai 181 104 70 61 56 16 345
Haoru Chen 32 0.2× 71 0.7× 89 1.3× 50 0.8× 45 0.8× 24 386
R. D. Norris 235 1.3× 155 1.5× 105 1.5× 35 0.6× 35 0.6× 11 361
Tim White 229 1.3× 157 1.5× 39 0.6× 49 0.8× 72 1.3× 18 389
Mark R. Boardman 93 0.5× 53 0.5× 134 1.9× 14 0.2× 38 0.7× 17 328
A. E. Weidie 146 0.8× 104 1.0× 56 0.8× 34 0.6× 79 1.4× 17 366
Matthew P. Garb 138 0.8× 187 1.8× 108 1.5× 27 0.4× 45 0.8× 26 336
Aureal T. Cross 188 1.0× 96 0.9× 58 0.8× 57 0.9× 29 0.5× 18 383
Jenő Nagy 137 0.8× 182 1.8× 127 1.8× 58 1.0× 51 0.9× 29 401
Sebastian Steinig 239 1.3× 190 1.8× 40 0.6× 43 0.7× 60 1.1× 24 376
Xu Wang 223 1.2× 112 1.1× 93 1.3× 48 0.8× 103 1.8× 21 401

Countries citing papers authored by Akio Hirai

Since Specialization
Citations

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

Fields of papers citing papers by Akio Hirai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Akio Hirai

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

All Works

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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