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 ranking in world, region, country and university is beta version since subject field "others" (873,690 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: 2
H Okazawa
Neuroscience
Positron Emission Tomography
Metrics
H-Index
i10 Index
Citation
56
204
10,551
* Rankings
Ranking Based On Selection: 5
Akemi Tomoda
Child Development
Pediatric Neurology
Neuroimaging
Child Maltreatment
Attachment
Metrics
H-Index
i10 Index
Citation
44
106
8,212
* Rankings
Ranking Based On Selection: 10
Kiyonao Sada
biochemistry
virology
molecular biology
immunology
Metrics
H-Index
i10 Index
Citation
35
72
4,359

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Rankings
Ranking Based On Selection: 11
Shiro Maeda
solid NMR of microbial polymer
Metrics
H-Index
i10 Index
Citation
31
77
2,935
* Rankings
Ranking Based On Selection: 15
Takashi X Fujisawa
child development
developmental psychology
social neuroscience
neuroimaging
epigenetics
Metrics
H-Index
i10 Index
Citation
26
50
2,167
* Rankings
Ranking Based On Selection: 17
Yoshitaka Aoki
Nocturia
LUTS
Metrics
H-Index
i10 Index
Citation
26
45
2,927
* Rankings
Ranking Based On Selection: 19
Masakazu Ito
Electric Power System
Energy management
Life-Cycle Assessment
Photovoltaic power system
Wind power system
Metrics
H-Index
i10 Index
Citation
24
44
2,334
* Rankings
Ranking Based On Selection: 20
Yoshiyuki Konishi
neuroscience
molecular and cellular biology
Metrics
H-Index
i10 Index
Citation
24
36
4,065
* Rankings
Ranking Based On Selection: 23
Shinji Honda
Epigenetics
Mycovirus
Neurospora crassa
filamentous fungi
Metrics
H-Index
i10 Index
Citation
22
29
2,352
* Rankings
Ranking Based On Selection: 24
Shota Nishitani
Epigenetics
Bioinformatics
Child maltreatment
Brain imaging
Parental Brain
Metrics
H-Index
i10 Index
Citation
21
33
1,537
* Rankings
Ranking Based On Selection: 25
Motoharu Fujigaki
3D shape measurement
Optics
Image
Mechanical Engineering
Experimental Mechanics
Metrics
H-Index
i10 Index
Citation
21
56
2,047
* Rankings
Ranking Based On Selection: 26
Mary Clare Sison Escano
computational physics (DFT MC)
oxygen
magnetism
metals
carbon
Metrics
H-Index
i10 Index
Citation
20
39
1,199
* Rankings
Ranking Based On Selection: 27
Yuichiro Kashiyama|Y. Kashiyama
Microbiology
Evolutionary protistology
photosynthesis
chlorophyll biochemistry
microbial ecology
Metrics
H-Index
i10 Index
Citation
19
31
2,181
* Rankings
Ranking Based On Selection: 28
Takenori Satomura
Applied enzymology
Metrics
H-Index
i10 Index
Citation
19
32
1,125
* Rankings
Ranking Based On Selection: 30
Joel T Asubar
Electrical and Electronic Engineering
MBE and MOCVD growth
high-electron-mobility transistors
MIS structures
semiconductor-i
Metrics
H-Index
i10 Index
Citation
18
32
1,542
* Rankings
Ranking Based On Selection: 32
Shinichiro Takiguchi|滝口慎一郎
Child development Child maltreatment ADHD Neuroimaging
Metrics
H-Index
i10 Index
Citation
17
24
836
* Rankings
Ranking Based On Selection: 34
Shingo Ito
Mechatronics
Precision Engineering
Motion Control
Actuators
Metrics
H-Index
i10 Index
Citation
17
27
842
* Rankings
Ranking Based On Selection: 35
Eduard Khutoryan
Vacuum Electron Devices (VEDs)
THz waves
Metrics
H-Index
i10 Index
Citation
16
25
806
* Rankings
Ranking Based On Selection: 36
Xiao Wen Lei
nanomaterials
solid mechanics
deformable body mechanics
molecular dynamics
lattice defects
Metrics
H-Index
i10 Index
Citation
16
20
737
* Rankings
Ranking Based On Selection: 37
Masaaki Otsu
Metal Forming
Laser
Microforming
Incremental Forming
Metrics
H-Index
i10 Index
Citation
16
26
954
* Rankings
Ranking Based On Selection: 38
Toshiyuki Meshii
engineering
mechanics
fracture
fracture toughness
size effect
Metrics
H-Index
i10 Index
Citation
16
25
895
* Rankings
Ranking Based On Selection: 39
Kazuya Furusawa
Biopolymer
Gelation
Phase Separation
Cell
Metrics
H-Index
i10 Index
Citation
15
23
767
* Rankings
Ranking Based On Selection: 40
Sakae Kawato
photonics
laser
light scattering
random media
quasi and photonic crystal
Metrics
H-Index
i10 Index
Citation
15
19
1,161
* Rankings
Ranking Based On Selection: 44
Chao Zhang (張潮)|張潮
Computer Vision
Anomaly Detection
Evolutionary Computation
Metrics
H-Index
i10 Index
Citation
12
16
522
* Rankings
Ranking Based On Selection: 46
Koshi Murata
neuroscience
olfaction
neurogastronomy
Metrics
H-Index
i10 Index
Citation
11
12
560
* Rankings
Ranking Based On Selection: 48
Ikuo Keshi
Text mining
Social media mining
Bigdata
Natural language processing
Machine Learning
Metrics
H-Index
i10 Index
Citation
11
13
403
* Rankings
Ranking Based On Selection: 49
Masanori Kidoguchi(木戸口 正典)
Otorhinolaryngology
Chronic rhinosinusitis
Nasal Polyps
Allergic rhinitis
Allergen immunotherapy
Metrics
H-Index
i10 Index
Citation
10
10
470
* Rankings
Ranking Based On Selection: 51
Natasha Kawata
Brain imaging
Auditory function
Cognitive function
Child maltreatment
Children brain development
Metrics
H-Index
i10 Index
Citation
7
6
254
* Rankings
Ranking Based On Selection: 53
Satoki Tsuichihara
humanoid robotics
human robot interaction
aerial image processing
Metrics
H-Index
i10 Index
Citation
7
5
155
* Rankings
Ranking Based On Selection: 54
Miezel Talara
Terahertz Spintronics
Electrooptics
Nonlinear Optics
Terahertz Imaging
THz Communication
Metrics
H-Index
i10 Index
Citation
6
6
128
* Rankings
Ranking Based On Selection: 57
Atsushi Matsumoto
polymer
polymer physics
rheology
ionomer
ionic liquid
Metrics
H-Index
i10 Index
Citation
6
5
206
* Rankings
Ranking Based On Selection: 59
Aya Watanabe
Applied Linguistics
Conversation Analysis
L2 classroom interaction
Medical English Education
Metrics
H-Index
i10 Index
Citation
5
2
116
* Rankings
Ranking Based On Selection: 61
Peng Tang
Electrochemistry
Photoelectrochemistry
bioelectrochemistry (STM/AFM/XRD/UV-Vis)
Metrics
H-Index
i10 Index
Citation
5
4
298
* Rankings
Ranking Based On Selection: 62
Jian Mi
robotics
machine learning
Multi-agent system
Metrics
H-Index
i10 Index
Citation
5
4
101
* Rankings
Ranking Based On Selection: 65
Takumi Nakane
Evolutionary Computation
Optimization
Deep Learning
Computer Vision
Metrics
H-Index
i10 Index
Citation
4
1
79
* Rankings
Ranking Based On Selection: 66
Xiaoyong Ruan
Mechanical Engineering
Fracture Mechanics
Finite Element Analysis
Molecular Dynamics
Metrics
H-Index
i10 Index
Citation
4
0
32
* Rankings
Ranking Based On Selection: 68
Arisa Poonsri
Image Processing
Computer Vision
Machine Learning
Artificial Intelligence
Metrics
H-Index
i10 Index
Citation
3
3
105
* Rankings
Ranking Based On Selection: 70
Masashi K. Kajita
Systems biology
Biophysics
Theoretical biology
Quantitative biology
Quantitative immunology
Metrics
H-Index
i10 Index
Citation
3
2
48
* Rankings
Ranking Based On Selection: 71
仲川晃平|Kohei Nakagawa
超伝導 無機合成 固体物理 マイクロ波化学
Metrics
H-Index
i10 Index
Citation
2
0
11
* Rankings
Ranking Based On Selection: 72
Shuai Chen
Human-Computer Interaction
Affective Computing
Metrics
H-Index
i10 Index
Citation
2
0
11
Rankings
Ranking Based On Selection: 1
Naiki Hironobu
Metrics
H-Index
i10 Index
Citation Counts
73
192
20,043
Rankings
Ranking Based On Selection: 2
H Okazawa
Metrics
H-Index
i10 Index
Citation Counts
56
204
10,551
Rankings
Ranking Based On Selection: 3
Masahiko Tani
Metrics
H-Index
i10 Index
Citation Counts
56
141
11,239
Rankings
Ranking Based On Selection: 4
Yugo Fukazawa
Metrics
H-Index
i10 Index
Citation Counts
44
102
7,529
Rankings
Ranking Based On Selection: 5
Akemi Tomoda
Metrics
H-Index
i10 Index
Citation Counts
44
106
8,212
Child Development
Pediatric Neurology
Neuroimaging
Child Maltreatment
Attachment
Rankings
Ranking Based On Selection: 6
Kazuyuki Murase
Metrics
H-Index
i10 Index
Citation Counts
43
114
8,736
Rankings
Ranking Based On Selection: 7
Hideo Matsuzaki
Metrics
H-Index
i10 Index
Citation Counts
42
79
6,966
Rankings
Ranking Based On Selection: 8
岩野 正之
Metrics
H-Index
i10 Index
Citation Counts
41
100
11,286
Rankings
Ranking Based On Selection: 9
Akio Yamamoto
Metrics
H-Index
i10 Index
Citation Counts
40
127
7,568
Rankings
Ranking Based On Selection: 10
Kiyonao Sada
Metrics
H-Index
i10 Index
Citation Counts
35
72
4,359
biochemistry
virology
molecular biology
immunology

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Shiro Maeda
Metrics
H-Index
i10 Index
Citation Counts
31
77
2,935
solid NMR of microbial polymer
Rankings
Ranking Based On Selection: 12
Shinji Sugihara
Metrics
H-Index
i10 Index
Citation Counts
28
45
2,984
Rankings
Ranking Based On Selection: 13
Motohiro Kobayashi
Metrics
H-Index
i10 Index
Citation Counts
27
58
2,579
Rankings
Ranking Based On Selection: 14
Jingyuan Chen
Metrics
H-Index
i10 Index
Citation Counts
27
62
2,031
Rankings
Ranking Based On Selection: 15
Takashi X Fujisawa
Metrics
H-Index
i10 Index
Citation Counts
26
50
2,167
child development
developmental psychology
social neuroscience
neuroimaging
epigenetics
Rankings
Ranking Based On Selection: 16
Tsuyoshi Miyazaki
Metrics
H-Index
i10 Index
Citation Counts
26
40
3,822
Rankings
Ranking Based On Selection: 17
Yoshitaka Aoki
Metrics
H-Index
i10 Index
Citation Counts
26
45
2,927
Rankings
Ranking Based On Selection: 18
Takahashi Yasutake 髙橋 泰岳
Metrics
H-Index
i10 Index
Citation Counts
25
77
3,073
Rankings
Ranking Based On Selection: 19
Masakazu Ito
Metrics
H-Index
i10 Index
Citation Counts
24
44
2,334
Electric Power System
Energy management
Life-Cycle Assessment
Photovoltaic power system
Wind power system
Rankings
Ranking Based On Selection: 20
Yoshiyuki Konishi
Metrics
H-Index
i10 Index
Citation Counts
24
36
4,065
Rankings
Ranking Based On Selection: 21
Akinori Tokunaga
Metrics
H-Index
i10 Index
Citation Counts
24
27
2,815
Rankings
Ranking Based On Selection: 22
Hirofumi Nishizumi
Metrics
H-Index
i10 Index
Citation Counts
24
33
2,899
Rankings
Ranking Based On Selection: 23
Shinji Honda
Metrics
H-Index
i10 Index
Citation Counts
22
29
2,352
Epigenetics
Mycovirus
Neurospora crassa
filamentous fungi
Rankings
Ranking Based On Selection: 24
Shota Nishitani
Metrics
H-Index
i10 Index
Citation Counts
21
33
1,537
Epigenetics
Bioinformatics
Child maltreatment
Brain imaging
Parental Brain
Rankings
Ranking Based On Selection: 25
Motoharu Fujigaki
Metrics
H-Index
i10 Index
Citation Counts
21
56
2,047
3D shape measurement
Optics
Image
Mechanical Engineering
Experimental Mechanics
Rankings
Ranking Based On Selection: 26
Mary Clare Sison Escano
Metrics
H-Index
i10 Index
Citation Counts
20
39
1,199
computational physics (DFT MC)
oxygen
magnetism
metals
carbon
Rankings
Ranking Based On Selection: 27
Yuichiro Kashiyama|Y. Kashiyama
Metrics
H-Index
i10 Index
Citation Counts
19
31
2,181
Microbiology
Evolutionary protistology
photosynthesis
chlorophyll biochemistry
microbial ecology
Rankings
Ranking Based On Selection: 28
Takenori Satomura
Metrics
H-Index
i10 Index
Citation Counts
19
32
1,125
Rankings
Ranking Based On Selection: 29
Michihiro Hara
Metrics
H-Index
i10 Index
Citation Counts
19
33
951
Rankings
Ranking Based On Selection: 30
Joel T Asubar
Metrics
H-Index
i10 Index
Citation Counts
18
32
1,542
Electrical and Electronic Engineering
MBE and MOCVD growth
high-electron-mobility transistors
MIS structures
semiconductor-i
Rankings
Ranking Based On Selection: 31
Koji Shimada
Metrics
H-Index
i10 Index
Citation Counts
17
19
879
Rankings
Ranking Based On Selection: 32
Shinichiro Takiguchi|滝口慎一郎
Metrics
H-Index
i10 Index
Citation Counts
17
24
836
Child development Child maltreatment ADHD Neuroimaging
Rankings
Ranking Based On Selection: 33
Kazuki Kuroda
Metrics
H-Index
i10 Index
Citation Counts
17
22
5,370
Rankings
Ranking Based On Selection: 34
Shingo Ito
Metrics
H-Index
i10 Index
Citation Counts
17
27
842
Mechatronics
Precision Engineering
Motion Control
Actuators
Rankings
Ranking Based On Selection: 35
Eduard Khutoryan
Metrics
H-Index
i10 Index
Citation Counts
16
25
806
Vacuum Electron Devices (VEDs)
THz waves
Rankings
Ranking Based On Selection: 36
Xiao Wen Lei
Metrics
H-Index
i10 Index
Citation Counts
16
20
737
nanomaterials
solid mechanics
deformable body mechanics
molecular dynamics
lattice defects
Rankings
Ranking Based On Selection: 37
Masaaki Otsu
Metrics
H-Index
i10 Index
Citation Counts
16
26
954
Rankings
Ranking Based On Selection: 38
Toshiyuki Meshii
Metrics
H-Index
i10 Index
Citation Counts
16
25
895
engineering
mechanics
fracture
fracture toughness
size effect
Rankings
Ranking Based On Selection: 39
Kazuya Furusawa
Metrics
H-Index
i10 Index
Citation Counts
15
23
767
Biopolymer
Gelation
Phase Separation
Cell
Rankings
Ranking Based On Selection: 40
Sakae Kawato
Metrics
H-Index
i10 Index
Citation Counts
15
19
1,161
photonics
laser
light scattering
random media
quasi and photonic crystal
Rankings
Ranking Based On Selection: 41
Futoshi Tanaka
Metrics
H-Index
i10 Index
Citation Counts
13
13
578
Rankings
Ranking Based On Selection: 42
Ryuto Shigenobu
Metrics
H-Index
i10 Index
Citation Counts
13
21
699
Rankings
Ranking Based On Selection: 43
Takayuki Onai
Metrics
H-Index
i10 Index
Citation Counts
13
14
493
Rankings
Ranking Based On Selection: 44
Chao Zhang (張潮)|張潮
Metrics
H-Index
i10 Index
Citation Counts
12
16
522
Computer Vision
Anomaly Detection
Evolutionary Computation
Rankings
Ranking Based On Selection: 45
Masahiro Ishigaki
Metrics
H-Index
i10 Index
Citation Counts
12
12
534
Rankings
Ranking Based On Selection: 46
Koshi Murata
Metrics
H-Index
i10 Index
Citation Counts
11
12
560
Rankings
Ranking Based On Selection: 47
Katsutoshi Mizuno
Metrics
H-Index
i10 Index
Citation Counts
11
12
645
Rankings
Ranking Based On Selection: 48
Ikuo Keshi
Metrics
H-Index
i10 Index
Citation Counts
11
13
403
Text mining
Social media mining
Bigdata
Natural language processing
Machine Learning
Rankings
Ranking Based On Selection: 49
Masanori Kidoguchi(木戸口 正典)
Metrics
H-Index
i10 Index
Citation Counts
10
10
470
Otorhinolaryngology
Chronic rhinosinusitis
Nasal Polyps
Allergic rhinitis
Allergen immunotherapy
Rankings
Ranking Based On Selection: 50
Bradford J. Lee
Metrics
H-Index
i10 Index
Citation Counts
9
8
241
Rankings
Ranking Based On Selection: 51
Natasha Kawata
Metrics
H-Index
i10 Index
Citation Counts
7
6
254
Brain imaging
Auditory function
Cognitive function
Child maltreatment
Children brain development
Rankings
Ranking Based On Selection: 52
Shingo Kasamatsu
Metrics
H-Index
i10 Index
Citation Counts
7
7
581
Rankings
Ranking Based On Selection: 53
Satoki Tsuichihara
Metrics
H-Index
i10 Index
Citation Counts
7
5
155
humanoid robotics
human robot interaction
aerial image processing
Rankings
Ranking Based On Selection: 54
Miezel Talara
Metrics
H-Index
i10 Index
Citation Counts
6
6
128
Terahertz Spintronics
Electrooptics
Nonlinear Optics
Terahertz Imaging
THz Communication
Rankings
Ranking Based On Selection: 55
山中俊祐
Metrics
H-Index
i10 Index
Citation Counts
6
5
85
Rankings
Ranking Based On Selection: 56
Gakushi Tsuji
Metrics
H-Index
i10 Index
Citation Counts
6
3
143
Rankings
Ranking Based On Selection: 57
Atsushi Matsumoto
Metrics
H-Index
i10 Index
Citation Counts
6
5
206
polymer
polymer physics
rheology
ionomer
ionic liquid
Rankings
Ranking Based On Selection: 58
Joselito Muldera
Metrics
H-Index
i10 Index
Citation Counts
6
3
140
Rankings
Ranking Based On Selection: 59
Aya Watanabe
Metrics
H-Index
i10 Index
Citation Counts
5
2
116
Applied Linguistics
Conversation Analysis
L2 classroom interaction
Medical English Education
Rankings
Ranking Based On Selection: 60
Takashi Ryoke
Metrics
H-Index
i10 Index
Citation Counts
5
2
98
Rankings
Ranking Based On Selection: 61
Peng Tang
Metrics
H-Index
i10 Index
Citation Counts
5
4
298
Electrochemistry
Photoelectrochemistry
bioelectrochemistry (STM/AFM/XRD/UV-Vis)
Rankings
Ranking Based On Selection: 62
Jian Mi
Metrics
H-Index
i10 Index
Citation Counts
5
4
101
Rankings
Ranking Based On Selection: 63
K. Yamamoto|山元康平
Metrics
H-Index
i10 Index
Citation Counts
5
3
104
Rankings
Ranking Based On Selection: 64
Shogo Kawaguchi
Metrics
H-Index
i10 Index
Citation Counts
5
4
119
Rankings
Ranking Based On Selection: 65
Takumi Nakane
Metrics
H-Index
i10 Index
Citation Counts
4
1
79
Evolutionary Computation
Optimization
Deep Learning
Computer Vision
Rankings
Ranking Based On Selection: 66
Xiaoyong Ruan
Metrics
H-Index
i10 Index
Citation Counts
4
0
32
Mechanical Engineering
Fracture Mechanics
Finite Element Analysis
Molecular Dynamics
Rankings
Ranking Based On Selection: 67
江端弘樹|H. Ebata, EBATA, Hiroki, Hiroki Ebata
Metrics
H-Index
i10 Index
Citation Counts
4
2
111
藻学、生物学、地域活性化、アウトリーチ
Rankings
Ranking Based On Selection: 68
Arisa Poonsri
Metrics
H-Index
i10 Index
Citation Counts
3
3
105
Image Processing
Computer Vision
Machine Learning
Artificial Intelligence
Rankings
Ranking Based On Selection: 69
Mai Miyata
Metrics
H-Index
i10 Index
Citation Counts
3
3
88
Rankings
Ranking Based On Selection: 70
Masashi K. Kajita
Metrics
H-Index
i10 Index
Citation Counts
3
2
48
Systems biology
Biophysics
Theoretical biology
Quantitative biology
Quantitative immunology
Rankings
Ranking Based On Selection: 71
仲川晃平|Kohei Nakagawa
Metrics
H-Index
i10 Index
Citation Counts
2
0
11
超伝導 無機合成 固体物理 マイクロ波化学
Rankings
Ranking Based On Selection: 72
Shuai Chen
Metrics
H-Index
i10 Index
Citation Counts
2
0
11
Human-Computer Interaction
Affective Computing
Rankings
Ranking Based On Selection: 73
Michael Wilson I. Rosero
Metrics
H-Index
i10 Index
Citation Counts
2
0
9
Rankings
Ranking Based On Selection: 74
energy management
microgrid
optimization
distributed systems
renewable energy