Citation Rankings
Highly Cited Researchers

National Institute of Science and Technology Policy Highly Cited Researchers Citation Rankings 2025

The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection :1
Japan
Masatsura Igami (伊神 正貫)
S&T indicators
S&T Policy
Scientometrics
科学計量学
科学技術指標
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,156
209
0.181
* Total Citation Counts Rankings
Ranking Based On Selection :2
Japan
林和弘 Kazuhiro Hayashi
図書館情報学、コンピュータサイエンス、学術情報流通、電子ジャーナル
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
481
152
0.316
* Total Citation Counts Rankings
Ranking Based On Selection :3
Japan
Yasuhiro Ogura
Energy Economics
Environmental Economics
Energy Policy
Trade and Environment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32
31
0.969
* Total Citation Counts Rankings
Ranking Based On Selection :4
Japan
Mari Kawamura
高等教育政策、博士人材、キャリアデベロップメント、経済支援、大学経営
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11
11
1.000
* Total Citation Counts Rankings
Rankings
625,569
Japan
12,366
1
Ranking Based On Selection: 1
Masatsura Igami (伊神 正貫)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,156
209
0.181
S&T indicators
S&T Policy
Scientometrics
科学計量学
科学技術指標
* Total Citation Counts Rankings
Rankings
931,822
Japan
17,243
2
Ranking Based On Selection: 2
林和弘 Kazuhiro Hayashi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
481
152
0.316
図書館情報学、コンピュータサイエンス、学術情報流通、電子ジャーナル
* Total Citation Counts Rankings
Rankings
1,951,085
Japan
31,813
3
Ranking Based On Selection: 3
Yasuhiro Ogura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32
31
0.969
Energy Economics
Environmental Economics
Energy Policy
Trade and Environment
* Total Citation Counts Rankings
Rankings
2,174,897
Japan
35,065
4
Ranking Based On Selection: 4
Mari Kawamura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11
11
1.000
高等教育政策、博士人材、キャリアデベロップメント、経済支援、大学経営