Top 100 Scientists

Top 100 Scientists in Japan 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 ranking in world, region, country and university is beta version since subject field "others" (888,752 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 6
Koichi Yoneyama
natural product chemistry
pesticide science
plant growth regulation
Metrics
H-Index
i10 Index
Citation
66
145
16,329
* Rankings
Ranking Based On Selection: 7
Hiroyuki Ohshima
Colloid Science
Interface Science
Biophysical Chemistry
Metrics
H-Index
i10 Index
Citation
66
297
18,253

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* Rankings
Ranking Based On Selection: 19
Suresh Awale
Natural Products Chemistry
Pancreatic cancer Research
Anti-cancer Drug Discovery
Anti-austerity Strategy
Cancer metabolomics
Metrics
H-Index
i10 Index
Citation
52
146
22,414
* Rankings
Ranking Based On Selection: 21
Satohiro Masuda
clinical pharmacology
transporters
nephrology
biomarker
immunosuppressive drugs
Metrics
H-Index
i10 Index
Citation
51
67
9,840
* Rankings
Ranking Based On Selection: 25
Osamu Muraoka
Medicinal Chemistry
Organic Synthetic Chemistry
Natural Product CHemistry
Metrics
H-Index
i10 Index
Citation
48
206
8,651
* Rankings
Ranking Based On Selection: 27
Kohki Akiyama
Natural products chemistry
Mycorrhizal symbiosis
Plant-microbe interactions
Metrics
H-Index
i10 Index
Citation
46
68
12,193
* Rankings
Ranking Based On Selection: 32
Hiroto Hatakeyama
Cancer
Drug Delivery System
immune checkpoint inhibitor
Metrics
H-Index
i10 Index
Citation
44
66
6,782
* Rankings
Ranking Based On Selection: 34
Haruhiko Fuwa 不破春彦
natural products chemistry
total synthesis
synthetic methods development
Metrics
H-Index
i10 Index
Citation
44
119
5,852
* Rankings
Ranking Based On Selection: 35
Hari Prasad Devkota
Natural Product Chemistry
Food Chemistry
Analytical Chemistry
Functional Foods
Nutraceuticals
Metrics
H-Index
i10 Index
Citation
43
138
8,595
* Rankings
Ranking Based On Selection: 38
Andrew Ferguson
Structure-Based Drug Design
Strategic Partnerships
External Innovation
Metrics
H-Index
i10 Index
Citation
39
58
6,365
* Rankings
Ranking Based On Selection: 42
Yuki Sudo
Biophysics
Photobiology
Photochemistry
Spectroscopy
Optogenetics
Metrics
H-Index
i10 Index
Citation
38
104
4,282
* Rankings
Ranking Based On Selection: 44
Eiji Yuba
Drug delivery system
Biomaterials
Functional polymer
Vaccine
Cancer immunotherapy
Metrics
H-Index
i10 Index
Citation
37
81
4,004
* Rankings
Ranking Based On Selection: 49
Peter Bonate
Pharmacokinetics
Clinical Pharmacology
Modeling and Simulation
Communication
Metrics
H-Index
i10 Index
Citation
36
81
6,417
* Rankings
Ranking Based On Selection: 53
Yasuhito Koyama
有機化学、高分子合成、超分子化学、生体関連高分子
Metrics
H-Index
i10 Index
Citation
35
76
2,855
* Rankings
Ranking Based On Selection: 60
Takahiro Nomoto
drug delivery
photodynamic therapy
neutron capture therapy
Metrics
H-Index
i10 Index
Citation
33
49
4,332
* Rankings
Ranking Based On Selection: 66
Toshiaki Makino
pharmacognosy
traditional medicines
natural product chemistry
pharmacology and pharmacokinetics
Metrics
H-Index
i10 Index
Citation
32
90
3,817
* Rankings
Ranking Based On Selection: 67
Kosuke Dodo
Chemical Biology
Medicinal Chemistry
Cell Death
Imaging
Proteomics
Metrics
H-Index
i10 Index
Citation
32
62
3,901
* Rankings
Ranking Based On Selection: 72
Naoki Kanoh
mode of action of bioactive small molecules
synthetic organic chemistry
chemical biology
Metrics
H-Index
i10 Index
Citation
32
68
3,156
* Rankings
Ranking Based On Selection: 75
Yohei Katoh
Genome editing
Molecular cell biology
Primary cilia
Metrics
H-Index
i10 Index
Citation
30
43
3,248
* Rankings
Ranking Based On Selection: 89
Yosuke Matsuo
Natural Product Chemistry
Food Chemistry
Computational Organic Chemistry
Metrics
H-Index
i10 Index
Citation
28
61
2,603
* Rankings
Ranking Based On Selection: 91
Suryasarathi Dasgupta
immunoregulation
cellular immunology
microbiota
clinical trials in Immunology
Metrics
H-Index
i10 Index
Citation
28
38
3,524
* Rankings
Ranking Based On Selection: 94
Hidemasa Nakaminami
Methicillin-resistant Staphylococcus aureus
MRSA
Panton-Valentine Leukocidin
PVL
Metrics
H-Index
i10 Index
Citation
27
66
2,328
* Rankings
Ranking Based On Selection: 95
Ken Sakata
Quantum Chemistry
Physical Chemistry
Organic Chemistry
Metrics
H-Index
i10 Index
Citation
27
42
2,957
* Rankings
Ranking Based On Selection: 96
Savina Jaeger
Clinical Biostatistics
Computational Biology
Personalized medicine
Metrics
H-Index
i10 Index
Citation
27
33
8,621
* Rankings
Ranking Based On Selection: 97
T Eric Ballard
Drug discovery and development
biotransformations/metabolism
mechanism of action
chemical biology
Metrics
H-Index
i10 Index
Citation
27
34
2,971
Rankings
Ranking Based On Selection: 2
Junken Aoki
Metrics
H-Index
i10 Index
Citation Counts
101
374
39,356
Rankings
Ranking Based On Selection: 3
Akinori Akaike
Metrics
H-Index
i10 Index
Citation Counts
83
284
22,434
Rankings
Ranking Based On Selection: 5
Shin Yonehara
Metrics
H-Index
i10 Index
Citation Counts
77
167
29,001
Rankings
Ranking Based On Selection: 6
Koichi Yoneyama
Metrics
H-Index
i10 Index
Citation Counts
66
145
16,329
natural product chemistry
pesticide science
plant growth regulation
Rankings
Ranking Based On Selection: 7
Hiroyuki Ohshima
Metrics
H-Index
i10 Index
Citation Counts
66
297
18,253
Rankings
Ranking Based On Selection: 8
Nobuyuki Okamura
Metrics
H-Index
i10 Index
Citation Counts
63
171
13,042
Rankings
Ranking Based On Selection: 10
Shogo Ozawa
Metrics
H-Index
i10 Index
Citation Counts
59
150
9,777

Maximize your institution's potential with our 360° Institutional Analysis Subscription and Institutional Exclusive Package, offering comprehensive insights and strategic advantages.

Rankings
Ranking Based On Selection: 11
Kazuya Maeda
Metrics
H-Index
i10 Index
Citation Counts
57
130
10,855
Rankings
Ranking Based On Selection: 12
Yukio Kato
Metrics
H-Index
i10 Index
Citation Counts
55
168
9,727
Rankings
Ranking Based On Selection: 13
Hidetoshi Tokuyama
Metrics
H-Index
i10 Index
Citation Counts
55
156
10,584
Rankings
Ranking Based On Selection: 15
Kenji Sugibayashi|Kenji Fujiwara
Metrics
H-Index
i10 Index
Citation Counts
54
222
10,290
Rankings
Ranking Based On Selection: 16
Satoshi Shuto
Metrics
H-Index
i10 Index
Citation Counts
54
244
10,297
Rankings
Ranking Based On Selection: 17
中山隆志 Nakayama Takashi
Metrics
H-Index
i10 Index
Citation Counts
53
89
9,516
Rankings
Ranking Based On Selection: 18
Katsunori Nakamura
Metrics
H-Index
i10 Index
Citation Counts
53
223
11,382
Rankings
Ranking Based On Selection: 19
Suresh Awale
Metrics
H-Index
i10 Index
Citation Counts
52
146
22,414
Natural Products Chemistry
Pancreatic cancer Research
Anti-cancer Drug Discovery
Anti-austerity Strategy
Cancer metabolomics
Rankings
Ranking Based On Selection: 20
Akihiko Yamagishi
Metrics
H-Index
i10 Index
Citation Counts
52
178
8,369
Rankings
Ranking Based On Selection: 21
Satohiro Masuda
Metrics
H-Index
i10 Index
Citation Counts
51
67
9,840
clinical pharmacology
transporters
nephrology
biomarker
immunosuppressive drugs
Rankings
Ranking Based On Selection: 22
Yoshikazu Yonemitsu
Metrics
H-Index
i10 Index
Citation Counts
51
153
7,977
Rankings
Ranking Based On Selection: 23
Shuntaro Hara
Metrics
H-Index
i10 Index
Citation Counts
50
98
8,726
Rankings
Ranking Based On Selection: 25
Osamu Muraoka
Metrics
H-Index
i10 Index
Citation Counts
48
206
8,651
Medicinal Chemistry
Organic Synthetic Chemistry
Natural Product CHemistry
Rankings
Ranking Based On Selection: 26
Itoh Susumu
Metrics
H-Index
i10 Index
Citation Counts
47
88
17,778
Rankings
Ranking Based On Selection: 27
Kohki Akiyama
Metrics
H-Index
i10 Index
Citation Counts
46
68
12,193
Natural products chemistry
Mycorrhizal symbiosis
Plant-microbe interactions
Rankings
Ranking Based On Selection: 28
Nishida Shozo
Metrics
H-Index
i10 Index
Citation Counts
46
119
6,091
Rankings
Ranking Based On Selection: 29
Satomi Onoue
Metrics
H-Index
i10 Index
Citation Counts
46
150
8,269
Rankings
Ranking Based On Selection: 30
Tadashi Eguchi
Metrics
H-Index
i10 Index
Citation Counts
46
171
6,788
Rankings
Ranking Based On Selection: 31
Sakai Ryuichi
Metrics
H-Index
i10 Index
Citation Counts
46
109
7,691
Rankings
Ranking Based On Selection: 32
Hiroto Hatakeyama
Metrics
H-Index
i10 Index
Citation Counts
44
66
6,782
Rankings
Ranking Based On Selection: 33
Motoki Takagi
Metrics
H-Index
i10 Index
Citation Counts
44
129
6,743
Rankings
Ranking Based On Selection: 34
Haruhiko Fuwa 不破春彦
Metrics
H-Index
i10 Index
Citation Counts
44
119
5,852
natural products chemistry
total synthesis
synthetic methods development
Rankings
Ranking Based On Selection: 35
Hari Prasad Devkota
Metrics
H-Index
i10 Index
Citation Counts
43
138
8,595
Natural Product Chemistry
Food Chemistry
Analytical Chemistry
Functional Foods
Nutraceuticals
Rankings
Ranking Based On Selection: 36
Akihiko Yoshizawa
Metrics
H-Index
i10 Index
Citation Counts
42
115
12,319
Rankings
Ranking Based On Selection: 37
Yongge Liu
Metrics
H-Index
i10 Index
Citation Counts
42
56
10,052
Rankings
Ranking Based On Selection: 38
Andrew Ferguson
Metrics
H-Index
i10 Index
Citation Counts
39
58
6,365
Structure-Based Drug Design
Strategic Partnerships
External Innovation
Rankings
Ranking Based On Selection: 40
Shintaro Inoue
Metrics
H-Index
i10 Index
Citation Counts
38
68
6,323
Rankings
Ranking Based On Selection: 41
Yosuke Demizu
Metrics
H-Index
i10 Index
Citation Counts
38
128
4,830
Rankings
Ranking Based On Selection: 42
Yuki Sudo
Metrics
H-Index
i10 Index
Citation Counts
38
104
4,282
Biophysics
Photobiology
Photochemistry
Spectroscopy
Optogenetics
Rankings
Ranking Based On Selection: 43
Toyofumi Suzuki
Metrics
H-Index
i10 Index
Citation Counts
38
197
7,337
Rankings
Ranking Based On Selection: 44
Eiji Yuba
Metrics
H-Index
i10 Index
Citation Counts
37
81
4,004
Drug delivery system
Biomaterials
Functional polymer
Vaccine
Cancer immunotherapy
Rankings
Ranking Based On Selection: 45
Yoshitomo Suhara
Metrics
H-Index
i10 Index
Citation Counts
37
71
5,828
Rankings
Ranking Based On Selection: 46
Isao Azumaya
Metrics
H-Index
i10 Index
Citation Counts
37
124
5,124
Rankings
Ranking Based On Selection: 47
Osamu Shirota
Metrics
H-Index
i10 Index
Citation Counts
37
107
3,990
Rankings
Ranking Based On Selection: 48
Hideto Jinno
Metrics
H-Index
i10 Index
Citation Counts
37
86
4,347
Rankings
Ranking Based On Selection: 49
Peter Bonate
Metrics
H-Index
i10 Index
Citation Counts
36
81
6,417
Pharmacokinetics
Clinical Pharmacology
Modeling and Simulation
Communication
Rankings
Ranking Based On Selection: 50
Ken Ichi Ogawara
Metrics
H-Index
i10 Index
Citation Counts
36
88
4,525
Rankings
Ranking Based On Selection: 51
Akifumi Kushiyama
Metrics
H-Index
i10 Index
Citation Counts
35
73
3,704
Rankings
Ranking Based On Selection: 53
Yasuhito Koyama
Metrics
H-Index
i10 Index
Citation Counts
35
76
2,855
有機化学、高分子合成、超分子化学、生体関連高分子
Rankings
Ranking Based On Selection: 54
Hiroaki Todo
Metrics
H-Index
i10 Index
Citation Counts
34
82
3,781
Rankings
Ranking Based On Selection: 55
Masataka Oda
Metrics
H-Index
i10 Index
Citation Counts
34
69
3,132
Rankings
Ranking Based On Selection: 57
Nakamura Takeo
Metrics
H-Index
i10 Index
Citation Counts
34
110
6,248
Rankings
Ranking Based On Selection: 58
Masahiro Iwaki
Metrics
H-Index
i10 Index
Citation Counts
34
116
4,120
Rankings
Ranking Based On Selection: 59
Song-Ho Chong
RIKEN Saitama, Japan
Metrics
H-Index
i10 Index
Citation Counts
34
62
2,958
Rankings
Ranking Based On Selection: 60
Takahiro Nomoto
Metrics
H-Index
i10 Index
Citation Counts
33
49
4,332
Rankings
Ranking Based On Selection: 61
Tasuku Hirayama
Metrics
H-Index
i10 Index
Citation Counts
33
57
3,166
Rankings
Ranking Based On Selection: 62
Eiichiro Nishi
Metrics
H-Index
i10 Index
Citation Counts
33
58
5,603
Rankings
Ranking Based On Selection: 63
Satoshi Takamatsu
Metrics
H-Index
i10 Index
Citation Counts
33
59
3,601
Rankings
Ranking Based On Selection: 64
Hiroyoshi Miyakawa
Metrics
H-Index
i10 Index
Citation Counts
33
68
5,586
Rankings
Ranking Based On Selection: 66
Toshiaki Makino
Metrics
H-Index
i10 Index
Citation Counts
32
90
3,817
pharmacognosy
traditional medicines
natural product chemistry
pharmacology and pharmacokinetics
Rankings
Ranking Based On Selection: 67
Kosuke Dodo
RIKEN Saitama, Japan
Metrics
H-Index
i10 Index
Citation Counts
32
62
3,901
Chemical Biology
Medicinal Chemistry
Cell Death
Imaging
Proteomics
Rankings
Ranking Based On Selection: 68
Neeraj Gupta
Metrics
H-Index
i10 Index
Citation Counts
32
69
4,922
Rankings
Ranking Based On Selection: 69
Yasunori Iwao
Metrics
H-Index
i10 Index
Citation Counts
32
84
3,147
Rankings
Ranking Based On Selection: 70
Ryuta Muromoto
Metrics
H-Index
i10 Index
Citation Counts
32
77
2,968
Rankings
Ranking Based On Selection: 71
Reiko Sugiura
Metrics
H-Index
i10 Index
Citation Counts
32
68
3,307
Rankings
Ranking Based On Selection: 72
Naoki Kanoh
Metrics
H-Index
i10 Index
Citation Counts
32
68
3,156
mode of action of bioactive small molecules
synthetic organic chemistry
chemical biology
Rankings
Ranking Based On Selection: 73
Masaru Hashimoto
Metrics
H-Index
i10 Index
Citation Counts
31
86
3,921
Rankings
Ranking Based On Selection: 74
Mitsuhiro Kinoshita
Metrics
H-Index
i10 Index
Citation Counts
31
58
2,547
Rankings
Ranking Based On Selection: 75
Yohei Katoh
Metrics
H-Index
i10 Index
Citation Counts
30
43
3,248
Rankings
Ranking Based On Selection: 76
John P Gibbs
Metrics
H-Index
i10 Index
Citation Counts
30
52
4,559
Rankings
Ranking Based On Selection: 77
Jose MM Caaveiro
Metrics
H-Index
i10 Index
Citation Counts
30
63
2,984
Rankings
Ranking Based On Selection: 78
Yoshiyuki Tanaka
Metrics
H-Index
i10 Index
Citation Counts
30
45
5,441
Rankings
Ranking Based On Selection: 79
Takakazu Nakabayashi
Metrics
H-Index
i10 Index
Citation Counts
30
73
2,777
Rankings
Ranking Based On Selection: 81
Ayumi Ohsaki
Metrics
H-Index
i10 Index
Citation Counts
30
62
2,503
Rankings
Ranking Based On Selection: 82
Nobukazu Shitan
Metrics
H-Index
i10 Index
Citation Counts
29
46
3,825
Rankings
Ranking Based On Selection: 83
Takanori Kanazawa
Metrics
H-Index
i10 Index
Citation Counts
29
53
2,566
Rankings
Ranking Based On Selection: 84
Nagai Noriaki
Metrics
H-Index
i10 Index
Citation Counts
29
106
3,012
Rankings
Ranking Based On Selection: 85
Takuya Ito
Metrics
H-Index
i10 Index
Citation Counts
29
70
2,650
Rankings
Ranking Based On Selection: 86
Mitsuhiro Nakamura
Metrics
H-Index
i10 Index
Citation Counts
29
55
2,332
Rankings
Ranking Based On Selection: 88
Eiji Yamaguchi
Metrics
H-Index
i10 Index
Citation Counts
28
53
3,083
Rankings
Ranking Based On Selection: 89
Yosuke Matsuo
Metrics
H-Index
i10 Index
Citation Counts
28
61
2,603
Natural Product Chemistry
Food Chemistry
Computational Organic Chemistry
Rankings
Ranking Based On Selection: 90
Jun Ya Ueda
Metrics
H-Index
i10 Index
Citation Counts
28
49
2,357
Rankings
Ranking Based On Selection: 91
Suryasarathi Dasgupta
Metrics
H-Index
i10 Index
Citation Counts
28
38
3,524
immunoregulation
cellular immunology
microbiota
clinical trials in Immunology
Rankings
Ranking Based On Selection: 93
Takuya Noguchi
Metrics
H-Index
i10 Index
Citation Counts
27
42
5,509
Rankings
Ranking Based On Selection: 94
Hidemasa Nakaminami
Metrics
H-Index
i10 Index
Citation Counts
27
66
2,328
Methicillin-resistant Staphylococcus aureus
MRSA
Panton-Valentine Leukocidin
PVL
Rankings
Ranking Based On Selection: 95
Ken Sakata
Metrics
H-Index
i10 Index
Citation Counts
27
42
2,957
Rankings
Ranking Based On Selection: 96
Savina Jaeger
Metrics
H-Index
i10 Index
Citation Counts
27
33
8,621
Clinical Biostatistics
Computational Biology
Personalized medicine
Rankings
Ranking Based On Selection: 97
T Eric Ballard
Metrics
H-Index
i10 Index
Citation Counts
27
34
2,971
Drug discovery and development
biotransformations/metabolism
mechanism of action
chemical biology
Rankings
Ranking Based On Selection: 99
Marcello Otake Sato
Metrics
H-Index
i10 Index
Citation Counts
27
45
2,328