Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 60 Scientists Citation Rankings - 2025

The Citation Rankings (Highly Cited Researchers) list 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
Rekishu Yamazaki
Quantum Hybrid Systems
Quantum Optics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,344
3,313
0.620
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Japan
Joo Young Jung
Communication
New Media
Local Community
Disaster
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,065
1,026
0.335
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Japan
Taisei Kaizoji
Economics
Finance
Econophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,521
844
0.335
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Japan
Tatsuo Nunoshiba
mutagenesis
DNA repair
oxidative stress
genome integrity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,459
218
0.089
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Japan
Robert Ridge
plant cell biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,005
169
0.084
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Japan
Giorgio Shani
International Relations
Religion
Nationalism
Human Security
South Asia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,748
865
0.495
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Japan
Suzanne Quay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,574
327
0.208
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Japan
Keisuke Ishibashi
Internet measurement
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,389
408
0.294
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Japan
Christian Collet
American politics
comparative politics
public opinion
race and ethnicity
sports
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,365
458
0.336

360° Institutional Performance & Benchmarking Click Here for Live Demo 

Gain data-driven strategic insights into your institution’s academic performance, global positioning, and competitive strengths through advanced analysis and benchmarking

with 20 similarly ranked institutions at City, Country, Region, and Global levels. 

* Total Citation Counts Rankings
Ranking Based On Selection: 10
Japan
Ryosuke Fujinuma
Soil science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
783
399
0.510
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Japan
Toshi Sasao
Community psychology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
609
115
0.189
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Japan
Alma Jeftic
social psychology
trauma
memory
peacebuilding
peace education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
598
585
0.978
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Japan
Koemhong Sol
Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
583
581
0.997
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Japan
Stephen R Nagy|Stephen NAGY, ナギ・スティーブン・R, スティーブン・ナギ
International relations
Japan
Sino-Japanese
US-China-Japan Relations
Indo-Pacific
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
482
305
0.633
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Japan
Seunghun J Lee
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
459
280
0.610
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Japan
Sawa Omori
International political economy
political institutions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
410
189
0.461
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Japan
Ichitaro Saito 斎藤 市太郎
photodetector
photovoltaic
photoconductors
optical materials
electrochemical
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
408
111
0.272
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Japan
Kayo Terada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
336
134
0.399
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Japan
Wilhelm Vosse|Wilhelm M. Vosse
security studies
cybersecurity
cyber diplomacy
Japan
EU-Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
256
127
0.496
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Japan
Taisei Goto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
249
169
0.679
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Japan
Tomoo Matsumura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
228
126
0.553
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Japan
小澤伊久美
日本語教育、教師教育、ビリーフ、留学、プログラム評価、PAC分析
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
178
63
0.354
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Japan
Anri Morimoto
theology
religion
american studies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
171
27
0.158
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Japan
Janet Borland
Japanese history
1923 Great Kanto Earthquake
environmental history
red-crowned crane
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
145
78
0.538
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Japan
Jeremiah Alberg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
143
60
0.420
* Total Citation Counts Rankings
Rankings
195,889
Japan
3,888
1
Ranking Based On Selection: 1
Rekishu Yamazaki
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,344
3,313
0.620
Quantum Hybrid Systems
Quantum Optics
* Total Citation Counts Rankings
Rankings
322,968
Japan
6,594
2
Ranking Based On Selection: 2
Joo Young Jung
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,065
1,026
0.335
* Total Citation Counts Rankings
Rankings
377,647
Japan
7,670
3
Ranking Based On Selection: 3
Taisei Kaizoji
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,521
844
0.335
* Total Citation Counts Rankings
Rankings
384,951
Japan
7,821
4
Ranking Based On Selection: 4
Tatsuo Nunoshiba
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,459
218
0.089
mutagenesis
DNA repair
oxidative stress
genome integrity
* Total Citation Counts Rankings
Rankings
447,363
Japan
9,075
5
Ranking Based On Selection: 5
Robert Ridge
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,005
169
0.084
* Total Citation Counts Rankings
Rankings
492,032
Japan
9,935
6
Ranking Based On Selection: 6
Giorgio Shani
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,748
865
0.495
International Relations
Religion
Nationalism
Human Security
South Asia
* Total Citation Counts Rankings
Rankings
527,337
Japan
10,593
7
Ranking Based On Selection: 7
Suzanne Quay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,574
327
0.208
* Total Citation Counts Rankings
Rankings
570,156
Japan
11,364
8
Ranking Based On Selection: 8
Keisuke Ishibashi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,389
408
0.294
* Total Citation Counts Rankings
Rankings
576,228
Japan
11,478
9
Ranking Based On Selection: 9
Christian Collet
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,365
458
0.336
American politics
comparative politics
public opinion
race and ethnicity
sports
* Total Citation Counts Rankings
Rankings
773,989
Japan
14,806
10
Ranking Based On Selection: 10
Ryosuke Fujinuma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
783
399
0.510

360° Institutional Performance & Benchmarking Click Here for Live Demo 

Gain data-driven strategic insights into your institution’s academic performance, global positioning, and competitive strengths through advanced analysis and benchmarking

with 20 similarly ranked institutions at City, Country, Region, and Global levels. 

* Total Citation Counts Rankings
Rankings
858,977
Japan
16,172
11
Ranking Based On Selection: 11
Toshi Sasao
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
609
115
0.189
* Total Citation Counts Rankings
Rankings
864,539
Japan
16,247
12
Ranking Based On Selection: 12
Alma Jeftic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
598
585
0.978
social psychology
trauma
memory
peacebuilding
peace education
* Total Citation Counts Rankings
Rankings
872,872
Japan
16,382
13
Ranking Based On Selection: 13
Koemhong Sol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
583
581
0.997
* Total Citation Counts Rankings
Rankings
944,884
Japan
17,453
14
Ranking Based On Selection: 14
International relations
Japan
Sino-Japanese
US-China-Japan Relations
Indo-Pacific
* Total Citation Counts Rankings
Rankings
964,919
Japan
17,741
15
Ranking Based On Selection: 15
Seunghun J Lee
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
459
280
0.610
* Total Citation Counts Rankings
Rankings
1,011,248
Japan
18,416
16
Ranking Based On Selection: 16
Sawa Omori
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
410
189
0.461
International political economy
political institutions
* Total Citation Counts Rankings
Rankings
1,013,469
Japan
18,458
17
Ranking Based On Selection: 17
Ichitaro Saito 斎藤 市太郎
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
408
111
0.272
photodetector
photovoltaic
photoconductors
optical materials
electrochemical
* Total Citation Counts Rankings
Rankings
1,091,811
Japan
19,596
18
Ranking Based On Selection: 18
Kayo Terada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
336
134
0.399
* Total Citation Counts Rankings
Rankings
1,206,315
Japan
21,188
19
Ranking Based On Selection: 19
Wilhelm Vosse|Wilhelm M. Vosse
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
256
127
0.496
security studies
cybersecurity
cyber diplomacy
Japan
EU-Japan
* Total Citation Counts Rankings
Rankings
1,217,834
Japan
21,343
20
Ranking Based On Selection: 20
Taisei Goto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
249
169
0.679
* Total Citation Counts Rankings
Rankings
1,255,921
Japan
21,875
21
Ranking Based On Selection: 21
Tomoo Matsumura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
228
126
0.553
* Total Citation Counts Rankings
Rankings
1,365,393
Japan
23,401
22
Ranking Based On Selection: 22
小澤伊久美
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
178
63
0.354
日本語教育、教師教育、ビリーフ、留学、プログラム評価、PAC分析
* Total Citation Counts Rankings
Rankings
1,383,653
Japan
23,652
23
Ranking Based On Selection: 23
Anri Morimoto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
171
27
0.158
* Total Citation Counts Rankings
Rankings
1,457,442
Japan
24,647
24
Ranking Based On Selection: 24
Janet Borland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
145
78
0.538
Japanese history
1923 Great Kanto Earthquake
environmental history
red-crowned crane
* Total Citation Counts Rankings
Rankings
1,463,947
Japan
24,739
25
Ranking Based On Selection: 25
Jeremiah Alberg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
143
60
0.420
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