Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field rankings in world, region, country, and university are in Beta version and are subject to real-time updates, since the subject field “Others” (1,121,289 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded. These rankings will dynamically evolve in real time as the “Others” profiles are revised and classified. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 3
Takashi Takahashi
Cancer Researc
Metrics
 
H-Index
i10 Index
Citation
103
279
49,219
* Rankings
Ranking Based On Selection: 6
Zhiyong Wang
Fullerenes
Metallofullerenes
Carbon Nanotubes
Graphen
Metrics
 
H-Index
i10 Index
Citation
80
473
24,476
* Rankings
Ranking Based On Selection: 7
Makoto Sawada
microglia 神経化�
Metrics
 
H-Index
i10 Index
Citation
77
305
22,358
* Rankings
Ranking Based On Selection: 8
Kinji Ohno
RNA metabolism
Neuromuscular junction
Molecular hydrogen
Gut microbiot
Metrics
 
H-Index
i10 Index
Citation
76
244
19,265
* Rankings
Ranking Based On Selection: 9
Hiroshi Kiyama
Neuroanatomy
Neuroscienc
Metrics
 
H-Index
i10 Index
Citation
70
285
19,619
* Rankings
Ranking Based On Selection: 10
Yuichi Otsuka
ionospher
Metrics
 
H-Index
i10 Index
Citation
67
256
14,765
* Rankings
Ranking Based On Selection: 11
Kazuhiro Nakazawa
高エネルギー宇宙物理実験、観�
Metrics
 
H-Index
i10 Index
Citation
66
262
18,786
* Rankings
Ranking Based On Selection: 12
Akimichi Morita
Photobiolog
Metrics
 
H-Index
i10 Index
Citation
66
245
16,265
* Rankings
Ranking Based On Selection: 13
Kazuhiro Yamakawa
epilepsy
neurodevelopmental disorder
autism
intellectual disabilit
Metrics
 
H-Index
i10 Index
Citation
65
164
14,946
* Rankings
Ranking Based On Selection: 16
Takumi Noguchi
Photosynthesis
Vibrational spectroscopy
Biophysic
Metrics
 
H-Index
i10 Index
Citation
61
160
9,597
* Rankings
Ranking Based On Selection: 18
Takashi Saito
Neurodegenerative Disorder
Metrics
 
H-Index
i10 Index
Citation
59
147
13,925
* Rankings
Ranking Based On Selection: 21
Kazuya Takeda
Behavior Signal Processing
Acoustic Signal Processing
Speech Processing
Driver behavior
intelligent_vehicle
Metrics
 
H-Index
i10 Index
Citation
55
260
16,911
* Rankings
Ranking Based On Selection: 22
Junichiro Hayano
Biosignal processin
Metrics
 
H-Index
i10 Index
Citation
56
160
14,564
* Rankings
Ranking Based On Selection: 24
Makoto Michikawa
Alzeimer's diseas
Metrics
 
H-Index
i10 Index
Citation
53
128
9,573
* Rankings
Ranking Based On Selection: 25
Shigeru Itoh
photosynthesis
biophysics
lichen and mos
Metrics
 
H-Index
i10 Index
Citation
52
187
8,409
Rankings
Ranking Based On Selection: 1
Yasuo Fukui
Metrics
 
H-Index
i10 Index
Citation Counts
145
722
80,286
Rankings
Ranking Based On Selection: 2
Kenichiro Itami
Metrics
 
H-Index
i10 Index
Citation Counts
104
383
38,491
Rankings
Ranking Based On Selection: 3
Takashi Takahashi
Metrics
 
H-Index
i10 Index
Citation Counts
103
279
49,219
Rankings
Ranking Based On Selection: 4
Kodera Yasuhiro
Metrics
 
H-Index
i10 Index
Citation Counts
91
559
36,457
Rankings
Ranking Based On Selection: 5
Naoki Ishiguro
Metrics
 
H-Index
i10 Index
Citation Counts
89
672
35,810
Rankings
Ranking Based On Selection: 6
Zhiyong Wang
Metrics
 
H-Index
i10 Index
Citation Counts
80
473
24,476
Fullerenes
Metallofullerenes
Carbon Nanotubes
Graphen
Rankings
Ranking Based On Selection: 7
Makoto Sawada
Metrics
 
H-Index
i10 Index
Citation Counts
77
305
22,358
Rankings
Ranking Based On Selection: 8
Kinji Ohno
Metrics
 
H-Index
i10 Index
Citation Counts
76
244
19,265
RNA metabolism
Neuromuscular junction
Molecular hydrogen
Gut microbiot
Rankings
Ranking Based On Selection: 9
Hiroshi Kiyama
Metrics
 
H-Index
i10 Index
Citation Counts
70
285
19,619
Rankings
Ranking Based On Selection: 10
Yuichi Otsuka
Metrics
 
H-Index
i10 Index
Citation Counts
67
256
14,765
Rankings
Ranking Based On Selection: 11
Kazuhiro Nakazawa
Metrics
 
H-Index
i10 Index
Citation Counts
66
262
18,786
高エネルギー宇宙物理実験、観�
Rankings
Ranking Based On Selection: 12
Akimichi Morita
Metrics
 
H-Index
i10 Index
Citation Counts
66
245
16,265
Rankings
Ranking Based On Selection: 13
Kazuhiro Yamakawa
Metrics
 
H-Index
i10 Index
Citation Counts
65
164
14,946
epilepsy
neurodevelopmental disorder
autism
intellectual disabilit
Rankings
Ranking Based On Selection: 14
Yasutoshi Iriyama
Metrics
 
H-Index
i10 Index
Citation Counts
64
136
13,014
Rankings
Ranking Based On Selection: 15
Kazuo Shiokawa
Metrics
 
H-Index
i10 Index
Citation Counts
61
312
15,886
Rankings
Ranking Based On Selection: 16
Takumi Noguchi
Metrics
 
H-Index
i10 Index
Citation Counts
61
160
9,597
Photosynthesis
Vibrational spectroscopy
Biophysic
Rankings
Ranking Based On Selection: 17
Miyako Ueguchi
Metrics
 
H-Index
i10 Index
Citation Counts
60
75
21,851
Rankings
Ranking Based On Selection: 18
Takashi Saito
Metrics
 
H-Index
i10 Index
Citation Counts
59
147
13,925
Neurodegenerative Disorder
Rankings
Ranking Based On Selection: 19
Hiroyasu Akatsu
Metrics
 
H-Index
i10 Index
Citation Counts
59
154
12,408
Rankings
Ranking Based On Selection: 20
Shingo Murakami
Metrics
 
H-Index
i10 Index
Citation Counts
57
226
18,446
Rankings
Ranking Based On Selection: 21
Kazuya Takeda
Metrics
 
H-Index
i10 Index
Citation Counts
55
260
16,911
Behavior Signal Processing
Acoustic Signal Processing
Speech Processing
Driver behavior
intelligent_vehicle
Rankings
Ranking Based On Selection: 22
Junichiro Hayano
Metrics
 
H-Index
i10 Index
Citation Counts
56
160
14,564
Rankings
Ranking Based On Selection: 23
K Yamamoto
Metrics
 
H-Index
i10 Index
Citation Counts
54
239
13,993
Rankings
Ranking Based On Selection: 24
Makoto Michikawa
Metrics
 
H-Index
i10 Index
Citation Counts
53
128
9,573
Rankings
Ranking Based On Selection: 25
Shigeru Itoh
Metrics
 
H-Index
i10 Index
Citation Counts
52
187
8,409
photosynthesis
biophysics
lichen and mos