Citation Rankings
Highly Cited Researchers

International Christian University 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
Rekishu Yamazaki
Quantum Hybrid Systems
Quantum Optics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,198
3,645
0.701
* 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
3,005
1,173
0.390
* 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
2,482
936
0.377
* 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
2,446
249
0.102
* 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
1,995
209
0.105
* 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
1,684
911
0.541
* Total Citation Counts Rankings
Ranking Based On Selection :7
Japan
Suzanne Quay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,559
387
0.248
* Total Citation Counts Rankings
Ranking Based On Selection :8
Japan
Keisuke Ishibashi
Internet measurement
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,375
493
0.359
* 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
1,347
536
0.398
* Total Citation Counts Rankings
Ranking Based On Selection :10
Japan
Ryosuke Fujinuma
Soil science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
759
445
0.586
* Total Citation Counts Rankings
Ranking Based On Selection :11
Japan
Toshi Sasao
Community psychology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
604
131
0.217
* 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
575
567
0.986
* Total Citation Counts Rankings
Ranking Based On Selection :13
Japan
Koemhong Sol
Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
520
519
0.998
* 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
457
308
0.674
* Total Citation Counts Rankings
Ranking Based On Selection :15
Japan
Seunghun J Lee
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
442
303
0.686
* Total Citation Counts Rankings
Ranking Based On Selection :16
Japan
Ichitaro Saito 斎藤 市太郎
photodetector
photovoltaic
photoconductors
optical materials
electrochemical
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
403
151
0.375
* Total Citation Counts Rankings
Ranking Based On Selection :17
Japan
Sawa Omori
International political economy
political institutions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
391
194
0.496
* Total Citation Counts Rankings
Ranking Based On Selection :18
Japan
Kayo Terada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
333
148
0.444
* Total Citation Counts Rankings
Ranking Based On Selection :19
Japan
Taisei Goto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
248
199
0.802
* Total Citation Counts Rankings
Ranking Based On Selection :20
Japan
Wilhelm Vosse|Wilhelm M. Vosse
security studies
cybersecurity
cyber diplomacy
Japan
EU-Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
245
125
0.510
* Total Citation Counts Rankings
Ranking Based On Selection :21
Japan
Tomoo Matsumura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
223
154
0.691
* 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
176
65
0.369
* 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
170
36
0.212
* 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
140
83
0.593
* Total Citation Counts Rankings
Ranking Based On Selection :25
Japan
Jeremiah Alberg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
140
66
0.471
* Total Citation Counts Rankings
Rankings
196,609
Japan
3,918
1
Ranking Based On Selection: 1
Rekishu Yamazaki
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,198
3,645
0.701
Quantum Hybrid Systems
Quantum Optics
* Total Citation Counts Rankings
Rankings
321,361
Japan
6,563
2
Ranking Based On Selection: 2
Joo Young Jung
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,005
1,173
0.390
* Total Citation Counts Rankings
Rankings
374,483
Japan
7,606
3
Ranking Based On Selection: 3
Taisei Kaizoji
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,482
936
0.377
* Total Citation Counts Rankings
Rankings
378,655
Japan
7,702
4
Ranking Based On Selection: 4
Tatsuo Nunoshiba
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,446
249
0.102
mutagenesis
DNA repair
oxidative stress
genome integrity
* Total Citation Counts Rankings
Rankings
440,350
Japan
8,944
5
Ranking Based On Selection: 5
Robert Ridge
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,995
209
0.105
* Total Citation Counts Rankings
Rankings
495,210
Japan
9,999
6
Ranking Based On Selection: 6
Giorgio Shani
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,684
911
0.541
International Relations
Religion
Nationalism
Human Security
South Asia
* Total Citation Counts Rankings
Rankings
521,465
Japan
10,498
7
Ranking Based On Selection: 7
Suzanne Quay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,559
387
0.248
* Total Citation Counts Rankings
Rankings
564,313
Japan
11,277
8
Ranking Based On Selection: 8
Keisuke Ishibashi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,375
493
0.359
* Total Citation Counts Rankings
Rankings
571,489
Japan
11,400
9
Ranking Based On Selection: 9
Christian Collet
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,347
536
0.398
American politics
comparative politics
public opinion
race and ethnicity
sports
* Total Citation Counts Rankings
Rankings
776,245
Japan
14,816
10
Ranking Based On Selection: 10
Ryosuke Fujinuma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
759
445
0.586
* Total Citation Counts Rankings
Rankings
853,775
Japan
16,039
11
Ranking Based On Selection: 11
Toshi Sasao
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
604
131
0.217
* Total Citation Counts Rankings
Rankings
869,056
Japan
16,285
12
Ranking Based On Selection: 12
Alma Jeftic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
575
567
0.986
social psychology
trauma
memory
peacebuilding
peace education
* Total Citation Counts Rankings
Rankings
900,729
Japan
16,777
13
Ranking Based On Selection: 13
Koemhong Sol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
520
519
0.998
* Total Citation Counts Rankings
Rankings
952,329
Japan
17,541
14
Ranking Based On Selection: 14
International relations
Japan
Sino-Japanese
US-China-Japan Relations
Indo-Pacific
* Total Citation Counts Rankings
Rankings
965,606
Japan
17,733
15
Ranking Based On Selection: 15
Seunghun J Lee
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
442
303
0.686
* Total Citation Counts Rankings
Rankings
1,002,937
Japan
18,282
16
Ranking Based On Selection: 16
Ichitaro Saito 斎藤 市太郎
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
403
151
0.375
photodetector
photovoltaic
photoconductors
optical materials
electrochemical
* Total Citation Counts Rankings
Rankings
1,015,017
Japan
18,457
17
Ranking Based On Selection: 17
Sawa Omori
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
391
194
0.496
International political economy
political institutions
* Total Citation Counts Rankings
Rankings
1,078,577
Japan
19,392
18
Ranking Based On Selection: 18
Kayo Terada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
333
148
0.444
* Total Citation Counts Rankings
Rankings
1,198,798
Japan
21,118
19
Ranking Based On Selection: 19
Taisei Goto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
248
199
0.802
* Total Citation Counts Rankings
Rankings
1,204,370
Japan
21,198
20
Ranking Based On Selection: 20
Wilhelm Vosse|Wilhelm M. Vosse
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
245
125
0.510
security studies
cybersecurity
cyber diplomacy
Japan
EU-Japan
* Total Citation Counts Rankings
Rankings
1,243,163
Japan
21,741
21
Ranking Based On Selection: 21
Tomoo Matsumura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
223
154
0.691
* Total Citation Counts Rankings
Rankings
1,343,442
Japan
23,200
22
Ranking Based On Selection: 22
小澤伊久美
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
176
65
0.369
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
1,358,332
Japan
23,410
23
Ranking Based On Selection: 23
Anri Morimoto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
170
36
0.212
* Total Citation Counts Rankings
Rankings
1,440,260
Japan
24,555
24
Ranking Based On Selection: 24
Janet Borland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
140
83
0.593
Japanese history
1923 Great Kanto Earthquake
environmental history
red-crowned crane
* Total Citation Counts Rankings
Rankings
1,440,530
Japan
24,561
25
Ranking Based On Selection: 25
Jeremiah Alberg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
140
66
0.471