Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 319 Scientists Citation Rankings (Sort by last 6 years Citation Index) - 2025

Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.

* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Japan
Takeshi Sakurai
Neuroscience neuropeptide
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
73,321
16,390
0.224
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Japan
Hiroyuki Tsuchiya
Orthopedic Surger
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,049
12,011
0.428
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
Japan
Katsuhiro Hayashi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,169
10,159
0.458
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Japan
Masanobu Oshima
Gastrointestinal Cancer
Metastasi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,903
7,035
0.272
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Japan
Tomoaki Nishiyama
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,373
4,648
0.448
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
Japan
Mitsuru Kikuchi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,981
4,460
0.497
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Japan
Rikinari Hanayama
Exosomes
Inflammation
Phagocytes
Apoptosi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,390
4,557
0.485
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Japan
Tadashi Toyama
Nephrology
Diabetes
Kidney
Epidemiology
Machine Learnin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,647
3,953
0.700
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
Japan
Naoto Nagata
Energy metabolism
Inflammation
Protein tyrosine phosphatas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,463
3,749
0.502

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* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
Japan
Ruidong Li
Network Architecture
Metaverse
Quantum Network
Big Data
Network Securit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,274
3,483
0.815
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
Japan
Takeshi Kato
atrial fibrillation
cardiac arrhythmi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,881
3,417
0.314
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
Japan
Takeshi Fukuma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,191
3,364
0.411
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
Japan
Masayoshi Yamamoto
radiochemistry
geochemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,364
3,348
0.251
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
Japan
Kazuyoshi Hosomichi
Bioinformatics and genomic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,475
3,252
0.502
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
Japan
Kenji Takahashi
Biorefinery
Physical Chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,187
3,228
0.317
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
Japan
Noriyuki Kodera
Biophysic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,476
3,196
0.428
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
Japan
Yukio Yoneda
Molecular Pharmacolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,956
3,127
0.209
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
Japan
Michihiro Mieda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,569
2,893
0.382
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
Japan
Ryo Honda
Membrane bioreactor
Antimicrobial resistance
Wastewater-based epidemiology
Resource recover
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,358
2,826
0.842
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
Japan
Yasufumi Takahashi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,404
2,799
0.518
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
Japan
Yoh Takuwa
Vascular biolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,917
2,714
0.109
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
Japan
Satomi Kasashima
Human Patholog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,106
2,679
0.377
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
Japan
Seigo Kinuya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,570
2,643
0.349
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
Japan
Hiroshi Inoue
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,576
2,634
0.401
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
Japan
Yukio Kato
pharmacokinetic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,963
2,627
0.264
* Last 6 Years Citation Counts Rankings
Rankings
16,797
Japan
158
1
Ranking Based On Selection: 1
Takeshi Sakurai
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
73,321
16,390
0.224
* Last 6 Years Citation Counts Rankings
Rankings
26,934
Japan
273
2
Ranking Based On Selection: 2
Hiroyuki Tsuchiya
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,049
12,011
0.428
* Last 6 Years Citation Counts Rankings
Rankings
34,571
Japan
380
3
Ranking Based On Selection: 3
Katsuhiro Hayashi
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,169
10,159
0.458
* Last 6 Years Citation Counts Rankings
Rankings
58,416
Japan
738
4
Ranking Based On Selection: 4
Masanobu Oshima
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,903
7,035
0.272
* Last 6 Years Citation Counts Rankings
Rankings
101,203
Japan
1,439
5
Ranking Based On Selection: 5
Tomoaki Nishiyama
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,373
4,648
0.448
* Last 6 Years Citation Counts Rankings
Rankings
106,507
Japan
1,528
7
Ranking Based On Selection: 6
Mitsuru Kikuchi
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,981
4,460
0.497
* Last 6 Years Citation Counts Rankings
Rankings
103,769
Japan
1,488
6
Ranking Based On Selection: 7
Rikinari Hanayama
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,390
4,557
0.485
Exosomes
Inflammation
Phagocytes
Apoptosi
* Last 6 Years Citation Counts Rankings
Rankings
123,041
Japan
1,833
8
Ranking Based On Selection: 8
Tadashi Toyama
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,647
3,953
0.700
Nephrology
Diabetes
Kidney
Epidemiology
Machine Learnin
* Last 6 Years Citation Counts Rankings
Rankings
131,142
Japan
1,964
9
Ranking Based On Selection: 9
Naoto Nagata
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,463
3,749
0.502
Energy metabolism
Inflammation
Protein tyrosine phosphatas
* Last 6 Years Citation Counts Rankings
Rankings
142,976
Japan
2,165
10
Ranking Based On Selection: 10
Ruidong Li
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,274
3,483
0.815
Network Architecture
Metaverse
Quantum Network
Big Data
Network Securit

Smart Institutional Plan

Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.

* Last 6 Years Citation Counts Rankings
Rankings
146,005
Japan
2,218
11
Ranking Based On Selection: 11
Takeshi Kato
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,881
3,417
0.314
atrial fibrillation
cardiac arrhythmi
* Last 6 Years Citation Counts Rankings
Rankings
148,774
Japan
2,259
12
Ranking Based On Selection: 12
Takeshi Fukuma
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,191
3,364
0.411
* Last 6 Years Citation Counts Rankings
Rankings
149,598
Japan
2,278
13
Ranking Based On Selection: 13
Masayoshi Yamamoto
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,364
3,348
0.251
* Last 6 Years Citation Counts Rankings
Rankings
154,737
Japan
2,349
14
Ranking Based On Selection: 14
Kazuyoshi Hosomichi
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,475
3,252
0.502
* Last 6 Years Citation Counts Rankings
Rankings
156,031
Japan
2,376
15
Ranking Based On Selection: 15
Kenji Takahashi
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,187
3,228
0.317
* Last 6 Years Citation Counts Rankings
Rankings
157,881
Japan
2,412
16
Ranking Based On Selection: 16
Noriyuki Kodera
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,476
3,196
0.428
* Last 6 Years Citation Counts Rankings
Rankings
161,857
Japan
2,486
17
Ranking Based On Selection: 17
Yukio Yoneda
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,956
3,127
0.209
* Last 6 Years Citation Counts Rankings
Rankings
176,415
Japan
2,762
18
Ranking Based On Selection: 18
Michihiro Mieda
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,569
2,893
0.382
* Last 6 Years Citation Counts Rankings
Rankings
181,087
Japan
2,841
19
Ranking Based On Selection: 19
Ryo Honda
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,358
2,826
0.842
Membrane bioreactor
Antimicrobial resistance
Wastewater-based epidemiology
Resource recover
* Last 6 Years Citation Counts Rankings
Rankings
182,921
Japan
2,883
20
Ranking Based On Selection: 20
Yasufumi Takahashi
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,404
2,799
0.518
* Last 6 Years Citation Counts Rankings
Rankings
189,138
Japan
2,972
21
Ranking Based On Selection: 21
Yoh Takuwa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,917
2,714
0.109
* Last 6 Years Citation Counts Rankings
Rankings
191,915
Japan
3,028
22
Ranking Based On Selection: 22
Satomi Kasashima
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,106
2,679
0.377
* Last 6 Years Citation Counts Rankings
Rankings
194,701
Japan
3,083
23
Ranking Based On Selection: 23
Seigo Kinuya
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,570
2,643
0.349
* Last 6 Years Citation Counts Rankings
Rankings
195,468
Japan
3,094
24
Ranking Based On Selection: 24
Hiroshi Inoue
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,576
2,634
0.401
* Last 6 Years Citation Counts Rankings
Rankings
196,009
Japan
3,105
25
Ranking Based On Selection: 25
Yukio Kato
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,963
2,627
0.264