Citation Rankings
Highly Cited Researchers
Japan Highly Cited Researchers Citation in Japan Rankings 2025
Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: 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
immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
469,773
119,345
0.254
* Total Citation Counts Rankings
Ranking Based On Selection :2
Biostatistics
Epidemiology
Global Health
Health Economics
Suicide Prevention
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
214,628
186,132
0.867
* Total Citation Counts Rankings
Ranking Based On Selection :3
Biochemistry
Oxidative Stress
Redox Biology
Molecular Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
158,892
63,779
0.401
* Total Citation Counts Rankings
Ranking Based On Selection :4
Immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134,852
42,371
0.314
* Total Citation Counts Rankings
Ranking Based On Selection :5
cell death
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
120,042
21,805
0.182
* Total Citation Counts Rankings
Ranking Based On Selection :6
Neuroscience
Sleep
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
113,896
18,038
0.158
* Total Citation Counts Rankings
Ranking Based On Selection :7
geant4
gpgpu
computing
medical physics
microdosimetry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,793
35,016
0.351
* Total Citation Counts Rankings
Ranking Based On Selection :8
ophthalmology
aging
dry eye
ocular surface
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,692
35,342
0.412
* Total Citation Counts Rankings
Ranking Based On Selection :9
Immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,098
13,314
0.164
* Total Citation Counts Rankings
Ranking Based On Selection :10
pathology endocrinology breast cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,439
23,727
0.332
* Total Citation Counts Rankings
Ranking Based On Selection :11
Neuroscience neuropeptides
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,309
17,529
0.246
* Total Citation Counts Rankings
Ranking Based On Selection :12
Internal Medicine
Endocrinology and Metabolism
Diabetes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,567
15,855
0.249
* Total Citation Counts Rankings
Ranking Based On Selection :13
Rheumatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,554
31,613
0.514
* Total Citation Counts Rankings
Ranking Based On Selection :14
neuroscience
psychiatry
biomarker
translational
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,625
28,868
0.492
* Total Citation Counts Rankings
Ranking Based On Selection :15
cancer epidemiology
clinical trial
oncology
clinical epidemiology
stem cell transplantation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,260
26,032
0.447
* Total Citation Counts Rankings
Ranking Based On Selection :16
Cell biology
Molecular biology
Microbiology
Autophagy
Dentistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,254
21,296
0.366
* Total Citation Counts Rankings
Ranking Based On Selection :17
Allergy
asthma
food allergy
immunology
molecular biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,203
25,951
0.470
* Total Citation Counts Rankings
Ranking Based On Selection :18
neuroscience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,981
13,920
0.258
* Total Citation Counts Rankings
Ranking Based On Selection :19
hematology
oncology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,280
17,457
0.340
* Total Citation Counts Rankings
Ranking Based On Selection :20
Immunology
Hematology
Health Policy
Public Health
Medical Affairs
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,056
38,844
0.792
* Total Citation Counts Rankings
Ranking Based On Selection :21
cardiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,808
22,332
0.458
* Total Citation Counts Rankings
Ranking Based On Selection :22
Virology
Cell Biology
Biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,198
11,361
0.236
* Total Citation Counts Rankings
Ranking Based On Selection :23
Clinical epidemiology
Cognitive-behavioral therapy
Systematic reviews
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,681
29,606
0.621
* Total Citation Counts Rankings
Ranking Based On Selection :24
Geant4
GPGPU
Computational Science
Medical Physics
Microdosimetry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,476
10,182
0.214
* Total Citation Counts Rankings
Ranking Based On Selection :25
myopathy
muscular dystrophy
muscle pathology
autophagy
mitochondria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,050
20,614
0.438
* Total Citation Counts Rankings
Rankings
35
1
1
Ranking Based On Selection: 1
Shizuo Akira
Osaka University
Suita, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
469,773
119,345
0.254
* Total Citation Counts Rankings
Rankings
679
9
1
Ranking Based On Selection: 2
Yonemoto Naohiro
Kyoto University
Kyoto, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
214,628
186,132
0.867
Biostatistics
Epidemiology
Global Health
Health Economics
Suicide Prevention
* Total Citation Counts Rankings
Rankings
1,259
13
1
Ranking Based On Selection: 3
Masayuki Yamamoto
Tohoku University
Sendai, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
158,892
63,779
0.401
Biochemistry
Oxidative Stress
Redox Biology
Molecular Biology
* Total Citation Counts Rankings
Rankings
1,731
18
2
Ranking Based On Selection: 4
Shimon Sakaguchi
Osaka University
Suita, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134,852
42,371
0.314
* Total Citation Counts Rankings
Rankings
2,135
24
3
Ranking Based On Selection: 5
Shigekazu Nagata
Osaka University
Suita, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
120,042
21,805
0.182
* Total Citation Counts Rankings
Rankings
2,372
25
1
Ranking Based On Selection: 6
Masashi Yanagisawa
University of Tsukuba
Tsukuba, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
113,896
18,038
0.158
* Total Citation Counts Rankings
Rankings
3,077
33
2
Ranking Based On Selection: 7
Koichi Murakami
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,793
35,016
0.351
geant4
gpgpu
computing
medical physics
microdosimetry
* Total Citation Counts Rankings
Rankings
4,092
48
2
Ranking Based On Selection: 8
Kazuo Tsubota
Keio University
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,692
35,342
0.412
ophthalmology
aging
dry eye
ocular surface
* Total Citation Counts Rankings
Rankings
4,474
52
5
Ranking Based On Selection: 9
Toshio Hirano
Osaka University
Suita, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,098
13,314
0.164
* Total Citation Counts Rankings
Rankings
5,566
65
5
Ranking Based On Selection: 10
Hironobu Sasano
Tohoku University
Sendai, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,439
23,727
0.332
pathology endocrinology breast cancer
* Total Citation Counts Rankings
Rankings
5,576
66
1
Ranking Based On Selection: 11
Takeshi Sakurai
Kanazawa University
Kanazawa, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,309
17,529
0.246
* Total Citation Counts Rankings
Rankings
6,738
79
3
Ranking Based On Selection: 12
Yoshihiro Ogawa
Kyushu University
Fukuoka, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,567
15,855
0.249
Internal Medicine
Endocrinology and Metabolism
Diabetes
* Total Citation Counts Rankings
Rankings
7,098
80
1
Ranking Based On Selection: 13
Yoshiya Tanaka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,554
31,613
0.514
* Total Citation Counts Rankings
Rankings
7,653
89
2
Ranking Based On Selection: 14
Kenji Hashimoto
Chiba University
Chiba, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,625
28,868
0.492
neuroscience
psychiatry
biomarker
translational
* Total Citation Counts Rankings
Rankings
7,732
91
1
Ranking Based On Selection: 15
Keitaro Matsuo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,260
26,032
0.447
cancer epidemiology
clinical trial
oncology
clinical epidemiology
stem cell transplantation
* Total Citation Counts Rankings
Rankings
7,735
92
7
Ranking Based On Selection: 16
Takeshi Noda
Osaka University
Suita, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,254
21,296
0.366
Cell biology
Molecular biology
Microbiology
Autophagy
Dentistry
* Total Citation Counts Rankings
Rankings
8,452
102
1
Ranking Based On Selection: 17
Ruby Pawankar
Nippon Medical School
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,203
25,951
0.470
Allergy
asthma
food allergy
immunology
molecular biology
* Total Citation Counts Rankings
Rankings
8,768
106
1
Ranking Based On Selection: 18
Mitsuo Kawato
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,981
13,920
0.258
* Total Citation Counts Rankings
Rankings
9,494
113
1
Ranking Based On Selection: 19
Tomoki Naoe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,280
17,457
0.340
* Total Citation Counts Rankings
Rankings
10,210
119
2
Ranking Based On Selection: 20
Chioma Ezinne Chibueze
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,056
38,844
0.792
Immunology
Hematology
Health Policy
Public Health
Medical Affairs
* Total Citation Counts Rankings
Rankings
10,284
120
2
Ranking Based On Selection: 21
Shinya Goto
Tokai University
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,808
22,332
0.458
* Total Citation Counts Rankings
Rankings
10,475
122
8
Ranking Based On Selection: 22
Yoshiharu Matsuura
Osaka University
Suita, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,198
11,361
0.236
Virology
Cell Biology
Biochemistry
* Total Citation Counts Rankings
Rankings
10,656
126
9
Ranking Based On Selection: 23
Toshi A Furukawa
Kyoto University
Kyoto, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,681
29,606
0.621
Clinical epidemiology
Cognitive-behavioral therapy
Systematic reviews
* Total Citation Counts Rankings
Rankings
10,731
127
6
Ranking Based On Selection: 24
Shogo Okada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,476
10,182
0.214
Geant4
GPGPU
Computational Science
Medical Physics
Microdosimetry
* Total Citation Counts Rankings
Rankings
10,887
130
1
Ranking Based On Selection: 25
Ichizo Nishino (西野一三)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,050
20,614
0.438
myopathy
muscular dystrophy
muscle pathology
autophagy
mitochondria