Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 1.187 Scientists Citation Rankings - 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.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
theoretical chemistry
catalytic chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
86,425
41,555
0.481
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Thermal management
Thermoelectric materials
Oxides
Thin Films
Materials Scienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,103
13,440
0.235
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Comparative Genomic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,100
8,649
0.180
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Soft & Wet Matte
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,358
23,352
0.515
* Total Citation Counts Rankings
Ranking Based On Selection: 5
radiotherapy
proton beam therapy
real-time tracking
four dimensional radiotherap
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,926
9,097
0.253
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,156
8,831
0.251
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Vaccine adjuvant
Innate immunit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,956
7,601
0.231
* Total Citation Counts Rankings
Ranking Based On Selection: 8
photocatalysis
anisotropic particle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,764
9,616
0.323
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,538
5,084
0.178
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
plasmo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,840
6,862
0.266
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,718
3,030
0.118
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Microbiology
Environmental Microbiology
Microbial Ecology
Methanogenesi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,956
8,822
0.354
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Oceanograph
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,297
10,186
0.419
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Immunology
Neuroimmunolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,102
7,100
0.295
* Total Citation Counts Rankings
Ranking Based On Selection: 15
水環境工学、環境微生物工学�
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,983
8,581
0.358
* Total Citation Counts Rankings
Ranking Based On Selection: 16
coordination chemistry
porous materials
metal-organic frameworks
porous coordination polymer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,920
4,698
0.205
* Total Citation Counts Rankings
Ranking Based On Selection: 17
catalysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,574
10,779
0.477
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Semiconductor surfaces and interfaces
nanostructures and nanodevice
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,464
2,518
0.117
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Physical chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,334
4,380
0.205
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Cerebrovascular diseases
Neurosurgery
Moyamoya diseas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,182
7,344
0.364
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Asymmetric Catalysis
C-H Functionalizatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,004
6,026
0.301
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Fiber Optics
Optical Communication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,442
5,731
0.295
* Total Citation Counts Rankings
Ranking Based On Selection: 23
autoimmune disease
antibody therapy
extracellular matrix
cancer
metastasi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,342
3,753
0.194
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Organic Chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,424
8,513
0.462
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Surface Science
Catalysis Synchrotron Radiation X-ray Optics XAFS
PEEM XPS
XFE
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,151
4,401
0.242
* Total Citation Counts Rankings
Rankings
4,408
53
1
Ranking Based On Selection: 1
Jun Ya Hasegawa
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
86,425
41,555
0.481
theoretical chemistry
catalytic chemistr
* Total Citation Counts Rankings
Rankings
8,776
102
2
Ranking Based On Selection: 2
Hiromichi Ohta
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,103
13,440
0.235
Thermal management
Thermoelectric materials
Oxides
Thin Films
Materials Scienc
* Total Citation Counts Rankings
Rankings
11,449
134
3
Ranking Based On Selection: 3
Hidemi Watanabe
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,100
8,649
0.180
* Total Citation Counts Rankings
Rankings
12,608
152
4
Ranking Based On Selection: 4
Jian Ping Gong
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,358
23,352
0.515
* Total Citation Counts Rankings
Rankings
18,326
217
5
Ranking Based On Selection: 5
Hiroki Shirato
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,926
9,097
0.253
radiotherapy
proton beam therapy
real-time tracking
four dimensional radiotherap
* Total Citation Counts Rankings
Rankings
18,930
233
6
Ranking Based On Selection: 6
Nishimura Shin Ichiro
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,156
8,831
0.251
* Total Citation Counts Rankings
Rankings
20,893
263
7
Ranking Based On Selection: 7
Tsukasa Seya
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,956
7,601
0.231
* Total Citation Counts Rankings
Rankings
24,504
324
8
Ranking Based On Selection: 8
Bunsho Ohtani
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,764
9,616
0.323
photocatalysis
anisotropic particle
* Total Citation Counts Rankings
Rankings
26,042
352
9
Ranking Based On Selection: 9
Hidehiko Sano
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,538
5,084
0.178
* Total Citation Counts Rankings
Rankings
30,278
426
10
Ranking Based On Selection: 10
Hiroaki Misawa
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,840
6,862
0.266
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* Total Citation Counts Rankings
Rankings
30,492
430
11
Ranking Based On Selection: 11
Kazuyasu Sakaguchi
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,718
3,030
0.118
* Total Citation Counts Rankings
Rankings
31,826
444
12
Ranking Based On Selection: 12
Yoichi Kamagata
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,956
8,822
0.354
Microbiology
Environmental Microbiology
Microbial Ecology
Methanogenesi
* Total Citation Counts Rankings
Rankings
33,107
465
13
Ranking Based On Selection: 13
Yutaka W Watanabe
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,297
10,186
0.419
* Total Citation Counts Rankings
Rankings
33,517
471
14
Ranking Based On Selection: 14
Masaaki Murakami
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,102
7,100
0.295
* Total Citation Counts Rankings
Rankings
33,755
476
15
Ranking Based On Selection: 15
Satoshi Okabe
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,983
8,581
0.358
* Total Citation Counts Rankings
Rankings
35,942
507
16
Ranking Based On Selection: 16
Shin Ichiro Noro
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,920
4,698
0.205
coordination chemistry
porous materials
metal-organic frameworks
porous coordination polymer
* Total Citation Counts Rankings
Rankings
36,716
520
17
Ranking Based On Selection: 17
Kenichi Shimizu
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,574
10,779
0.477
* Total Citation Counts Rankings
Rankings
39,439
569
18
Ranking Based On Selection: 18
Hideki Hasegawa
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,464
2,518
0.117
Semiconductor surfaces and interfaces
nanostructures and nanodevice
* Total Citation Counts Rankings
Rankings
39,796
576
19
Ranking Based On Selection: 19
Kohei Uosaki
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,334
4,380
0.205
* Total Citation Counts Rankings
Rankings
43,010
642
20
Ranking Based On Selection: 20
Miki Fujimura
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,182
7,344
0.364
Cerebrovascular diseases
Neurosurgery
Moyamoya diseas
* Total Citation Counts Rankings
Rankings
43,499
647
21
Ranking Based On Selection: 21
Shigeki Matsunaga
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,004
6,026
0.301
Asymmetric Catalysis
C-H Functionalizatio
* Total Citation Counts Rankings
Rankings
45,200
677
22
Ranking Based On Selection: 22
Kunimasa Saitoh
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,442
5,731
0.295
Fiber Optics
Optical Communication
* Total Citation Counts Rankings
Rankings
45,507
685
23
Ranking Based On Selection: 23
Toshimitsu Uede
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,342
3,753
0.194
autoimmune disease
antibody therapy
extracellular matrix
cancer
metastasi
* Total Citation Counts Rankings
Rankings
48,658
749
24
Ranking Based On Selection: 24
Hajime Ito
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,424
8,513
0.462
* Total Citation Counts Rankings
Rankings
49,672
768
25
Ranking Based On Selection: 25
Kiyotaka Asakura
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,151
4,401
0.242
Surface Science
Catalysis Synchrotron Radiation X-ray Optics XAFS
PEEM XPS
XFE