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” (1,121,296 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: 1
Satoshi Tanaka
Quantum optics
quantum mechanic
Metrics
 
H-Index
i10 Index
Citation
80
679
37,684
* Rankings
Ranking Based On Selection: 3
三木幸雄
MRI
brain
pituitar
Metrics
 
H-Index
i10 Index
Citation
63
254
13,816
* Rankings
Ranking Based On Selection: 7
Atsushi Sakuda
Materials Science
Electrochemistry
all-solid-state batteries
Solid electrolyt
Metrics
 
H-Index
i10 Index
Citation
55
157
11,374
* Rankings
Ranking Based On Selection: 11
Yusuke Nojima
Evolutionary fuzzy systems
evolutionary multiobjective optimization
data minin
Metrics
 
H-Index
i10 Index
Citation
47
165
11,359
* Rankings
Ranking Based On Selection: 12
Masahide Takahashi
Organic-inorganic hybrid materials
Nano materials
Wet processing
Sol-Gel
Responsive material
Metrics
 
H-Index
i10 Index
Citation
47
176
8,695
* Rankings
Ranking Based On Selection: 14
Kohki Akiyama
Natural products chemistry
Mycorrhizal symbiosis
Plant-microbe interaction
Metrics
 
H-Index
i10 Index
Citation
46
68
12,636
* Rankings
Ranking Based On Selection: 15
Jun Nakamura
Endogenous Aldehyd
Metrics
 
H-Index
i10 Index
Citation
46
82
7,135
* Rankings
Ranking Based On Selection: 16
Atsushi Nakahira
ceramics
biomaterials
layered materials
environmental purification
recycle of waste..
Metrics
 
H-Index
i10 Index
Citation
46
155
8,399
* Rankings
Ranking Based On Selection: 17
Shoichi Ogio
High Energy Cosmic Ray
Metrics
 
H-Index
i10 Index
Citation
44
126
8,190
* Rankings
Ranking Based On Selection: 18
Ryohei Yokoyama
Energy
Energy Systems
Energy Management
Cogeneration
Optimizatio
Metrics
 
H-Index
i10 Index
Citation
44
133
6,867
* Rankings
Ranking Based On Selection: 19
Tetsuya Takahashi
Mathematics
Public Key Cryptography
University Mathematics Educatio
Metrics
 
H-Index
i10 Index
Citation
44
205
13,245
* Rankings
Ranking Based On Selection: 21
Muto Akinori
Chemical Engineering
Electrochemistry
porous carbon
capacitor
micro reacto
Metrics
 
H-Index
i10 Index
Citation
43
79
5,681
* Rankings
Ranking Based On Selection: 22
Hideaki Hisamoto
Chemical Sensors
Functional dyes
Molecular recognition
Immunoassay
Microfluidic devic
Metrics
 
H-Index
i10 Index
Citation
43
108
6,822
* Rankings
Ranking Based On Selection: 24
Kubota Hirokazu
Optical fiber communication
nonlinear optics
space division multiplexing
optical devic
Metrics
 
H-Index
i10 Index
Citation
42
91
6,758
* Rankings
Ranking Based On Selection: 25
Masahito Ueyama
micrometeorology
biosphere-atmosphere interactions
eddy covariance
boreal
urban meteorolog
Metrics
 
H-Index
i10 Index
Citation
41
83
5,083
Rankings
Ranking Based On Selection: 1
Satoshi Tanaka
Metrics
 
H-Index
i10 Index
Citation Counts
80
679
37,684
Rankings
Ranking Based On Selection: 2
Atsushi Harada
Metrics
 
H-Index
i10 Index
Citation Counts
74
206
25,563
Rankings
Ranking Based On Selection: 3
三木幸雄
Metrics
 
H-Index
i10 Index
Citation Counts
63
254
13,816
Rankings
Ranking Based On Selection: 4
Kuniharu Takei
Metrics
 
H-Index
i10 Index
Citation Counts
61
131
23,208
Rankings
Ranking Based On Selection: 5
Toshio Watanabe
Metrics
 
H-Index
i10 Index
Citation Counts
59
230
12,926
Rankings
Ranking Based On Selection: 6
Seiya Kobatake
Metrics
 
H-Index
i10 Index
Citation Counts
59
178
16,145
Rankings
Ranking Based On Selection: 7
Atsushi Sakuda
Metrics
 
H-Index
i10 Index
Citation Counts
55
157
11,374
Materials Science
Electrochemistry
all-solid-state batteries
Solid electrolyt
Rankings
Ranking Based On Selection: 8
Hiroaki Tanaka
Metrics
 
H-Index
i10 Index
Citation Counts
53
251
15,371
Rankings
Ranking Based On Selection: 9
Seiji Akita
Metrics
 
H-Index
i10 Index
Citation Counts
50
149
10,869
Rankings
Ranking Based On Selection: 10
Makoto Tsubota
Metrics
 
H-Index
i10 Index
Citation Counts
48
135
8,828
Rankings
Ranking Based On Selection: 11
Yusuke Nojima
Metrics
 
H-Index
i10 Index
Citation Counts
47
165
11,359
Evolutionary fuzzy systems
evolutionary multiobjective optimization
data minin
Rankings
Ranking Based On Selection: 12
Masahide Takahashi
Metrics
 
H-Index
i10 Index
Citation Counts
47
176
8,695
Organic-inorganic hybrid materials
Nano materials
Wet processing
Sol-Gel
Responsive material
Rankings
Ranking Based On Selection: 13
Koichi Okamoto
Metrics
 
H-Index
i10 Index
Citation Counts
47
162
9,718
Rankings
Ranking Based On Selection: 14
Kohki Akiyama
Metrics
 
H-Index
i10 Index
Citation Counts
46
68
12,636
Natural products chemistry
Mycorrhizal symbiosis
Plant-microbe interaction
Rankings
Ranking Based On Selection: 15
Jun Nakamura
Metrics
 
H-Index
i10 Index
Citation Counts
46
82
7,135
Rankings
Ranking Based On Selection: 16
Atsushi Nakahira
Metrics
 
H-Index
i10 Index
Citation Counts
46
155
8,399
ceramics
biomaterials
layered materials
environmental purification
recycle of waste..
Rankings
Ranking Based On Selection: 17
Shoichi Ogio
Metrics
 
H-Index
i10 Index
Citation Counts
44
126
8,190
Rankings
Ranking Based On Selection: 18
Ryohei Yokoyama
Metrics
 
H-Index
i10 Index
Citation Counts
44
133
6,867
Energy
Energy Systems
Energy Management
Cogeneration
Optimizatio
Rankings
Ranking Based On Selection: 19
Tetsuya Takahashi
Metrics
 
H-Index
i10 Index
Citation Counts
44
205
13,245
Mathematics
Public Key Cryptography
University Mathematics Educatio
Rankings
Ranking Based On Selection: 20
Shinichi Kitamura
Metrics
 
H-Index
i10 Index
Citation Counts
44
133
6,144
Rankings
Ranking Based On Selection: 21
Muto Akinori
Metrics
 
H-Index
i10 Index
Citation Counts
43
79
5,681
Chemical Engineering
Electrochemistry
porous carbon
capacitor
micro reacto
Rankings
Ranking Based On Selection: 22
Hideaki Hisamoto
Metrics
 
H-Index
i10 Index
Citation Counts
43
108
6,822
Chemical Sensors
Functional dyes
Molecular recognition
Immunoassay
Microfluidic devic
Rankings
Ranking Based On Selection: 23
Hideki Fujii
Metrics
 
H-Index
i10 Index
Citation Counts
42
85
6,627
Rankings
Ranking Based On Selection: 24
Kubota Hirokazu
Metrics
 
H-Index
i10 Index
Citation Counts
42
91
6,758
Optical fiber communication
nonlinear optics
space division multiplexing
optical devic
Rankings
Ranking Based On Selection: 25
Masahito Ueyama
Metrics
 
H-Index
i10 Index
Citation Counts
41
83
5,083
micrometeorology
biosphere-atmosphere interactions
eddy covariance
boreal
urban meteorolog