Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 62 Scientists Citation Rankings - 2025

The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection: 1
Japan
Hisashi Yamamoto
Organic Synthesis
Catalysis
Organometallic
Total synthesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,585
6,457
0.114
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Japan
Kimitaka Kawamura
Geochemistry
Atmospheric Chemistry
Aerosol Chemistry
Geoscience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,095
12,964
0.340
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Japan
Mitsuo Sawamoto
polymer chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,137
5,304
0.151
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Japan
Hironobu Fujiyoshi
Computer vision
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,855
2,629
0.267
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Japan
Yasuo Kokubun
Opto-electronics
Photonics
Optical fiber
Optical communication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,895
908
0.115
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Japan
Ryohei Nakano
Artificial Intelligence
Machine Learning
Neural Networks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,925
1,036
0.150
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Japan
Seiichi Nakagawa|中川聖一
spoken language processing
speech recognition
speaker recognition
natural language processing
artificial intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,432
1,017
0.158
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Japan
Ichiro Tsuda
Dynamical Systems
Chaos
Neuroscience
Complex Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,352
928
0.146
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Japan
Akichika Mikami
Visual cognition and memory
Comparative study of brain
Evolution of color vision
Prevention of fall
Detection of dementia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,597
674
0.120
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Japan
Takayoshi Yamashita
Computer Vision
Pattern Recognition
object tracking
object detection
machine learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,486
2,925
0.652
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Japan
Yuichi Oba
生物学
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,425
1,683
0.380
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Japan
Kazuo Yamamoto
Lightning protection
Grounding
Wind turbine
Automobile
EMC
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,881
1,074
0.277
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Japan
Naoomi Yamada
Solid-state chemistry
Thin Films
oxides
nitrides
halides
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,569
1,455
0.408
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Japan
Yoshi Hirooka
プラズマ・核融合理工学
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,330
665
0.200
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Japan
Yukiya Yamamoto
Medicine
Hematology
Oncology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,896
711
0.246
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Japan
Yoshitaka Nakano
power semiconductors
solid-state devices and materials
deep-level defects
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,814
613
0.218
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Japan
Hiroshi Nakagawa
SNP
ABC transporter
Cholesteatoma
Bone metabolism
Cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,786
601
0.216
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Japan
Takayuki Yonezawa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,459
920
0.374
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Japan
Kiyoshi Honda
Remote Sensing
Agriculture
Disaster
Sensor Network
Geoinformatics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,344
715
0.305
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Japan
Ikki Matsuda
Primatology
Ecology
Animal behavior
Physiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,273
1,335
0.587
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Japan
Yuji Iwahori
Computer Vision
Pattern Recognition
Neural Network
Deep Learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,257
1,158
0.513
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Japan
Kazumasa Yamamoto
Speech Recognition
Signal Processing
Spoken Language Processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,679
321
0.191
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Japan
Ramesh C Samanta
Asymmetric Catalysis and Synthesis
Homogeneous Catalysis
Electrocatalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,668
940
0.564
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Japan
Taishi Kawamoto
Social Psychology
Social Neuroscience
Family Psychology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,272
1,032
0.811
* Total Citation Counts Rankings
Rankings
8,446
Japan
100
1
Ranking Based On Selection: 1
Hisashi Yamamoto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,585
6,457
0.114
Organic Synthesis
Catalysis
Organometallic
Total synthesis
* Total Citation Counts Rankings
Rankings
15,858
Japan
197
2
Ranking Based On Selection: 2
Kimitaka Kawamura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,095
12,964
0.340
Geochemistry
Atmospheric Chemistry
Aerosol Chemistry
Geoscience
* Total Citation Counts Rankings
Rankings
17,986
Japan
216
3
Ranking Based On Selection: 3
Mitsuo Sawamoto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,137
5,304
0.151
* Total Citation Counts Rankings
Rankings
102,247
Japan
1,854
4
Ranking Based On Selection: 4
Hironobu Fujiyoshi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,855
2,629
0.267
* Total Citation Counts Rankings
Rankings
131,164
Japan
2,505
5
Ranking Based On Selection: 5
Yasuo Kokubun
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,895
908
0.115
Opto-electronics
Photonics
Optical fiber
Optical communication
* Total Citation Counts Rankings
Rankings
150,864
Japan
2,913
6
Ranking Based On Selection: 6
Ryohei Nakano
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,925
1,036
0.150
Artificial Intelligence
Machine Learning
Neural Networks
* Total Citation Counts Rankings
Rankings
162,894
Japan
3,168
7
Ranking Based On Selection: 7
Seiichi Nakagawa|中川聖一
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,432
1,017
0.158
spoken language processing
speech recognition
speaker recognition
natural language processing
artificial intelligence
* Total Citation Counts Rankings
Rankings
165,024
Japan
3,217
8
Ranking Based On Selection: 8
Ichiro Tsuda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,352
928
0.146
Dynamical Systems
Chaos
Neuroscience
Complex Systems
* Total Citation Counts Rankings
Rankings
187,177
Japan
3,720
1
Ranking Based On Selection: 9
Akichika Mikami
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,597
674
0.120
Visual cognition and memory
Comparative study of brain
Evolution of color vision
Prevention of fall
Detection of dementia
* Total Citation Counts Rankings
Rankings
231,421
Japan
4,680
9
Ranking Based On Selection: 10
Takayoshi Yamashita
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,486
2,925
0.652
Computer Vision
Pattern Recognition
object tracking
object detection
machine learning
* Total Citation Counts Rankings
Rankings
234,320
Japan
4,726
10
Ranking Based On Selection: 11
Yuichi Oba
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,425
1,683
0.380
* Total Citation Counts Rankings
Rankings
264,084
Japan
5,345
11
Ranking Based On Selection: 12
Kazuo Yamamoto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,881
1,074
0.277
Lightning protection
Grounding
Wind turbine
Automobile
EMC
* Total Citation Counts Rankings
Rankings
283,942
Japan
5,769
12
Ranking Based On Selection: 13
Naoomi Yamada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,569
1,455
0.408
Solid-state chemistry
Thin Films
oxides
nitrides
halides
* Total Citation Counts Rankings
Rankings
301,349
Japan
6,160
13
Ranking Based On Selection: 14
Yoshi Hirooka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,330
665
0.200
プラズマ・核融合理工学
* Total Citation Counts Rankings
Rankings
338,069
Japan
6,867
14
Ranking Based On Selection: 15
Yukiya Yamamoto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,896
711
0.246
* Total Citation Counts Rankings
Rankings
346,091
Japan
7,031
15
Ranking Based On Selection: 16
Yoshitaka Nakano
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,814
613
0.218
power semiconductors
solid-state devices and materials
deep-level defects
* Total Citation Counts Rankings
Rankings
348,896
Japan
7,090
16
Ranking Based On Selection: 17
Hiroshi Nakagawa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,786
601
0.216
SNP
ABC transporter
Cholesteatoma
Bone metabolism
Cancer
* Total Citation Counts Rankings
Rankings
384,772
Japan
7,820
17
Ranking Based On Selection: 18
Takayuki Yonezawa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,459
920
0.374
* Total Citation Counts Rankings
Rankings
398,945
Japan
8,123
18
Ranking Based On Selection: 19
Kiyoshi Honda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,344
715
0.305
Remote Sensing
Agriculture
Disaster
Sensor Network
Geoinformatics
* Total Citation Counts Rankings
Rankings
408,016
Japan
8,336
19
Ranking Based On Selection: 20
Ikki Matsuda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,273
1,335
0.587
Primatology
Ecology
Animal behavior
Physiology
* Total Citation Counts Rankings
Rankings
410,212
Japan
8,384
20
Ranking Based On Selection: 21
Yuji Iwahori
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,257
1,158
0.513
Computer Vision
Pattern Recognition
Neural Network
Deep Learning
* Total Citation Counts Rankings
Rankings
505,337
Japan
10,184
21
Ranking Based On Selection: 22
Kazumasa Yamamoto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,679
321
0.191
Speech Recognition
Signal Processing
Spoken Language Processing
* Total Citation Counts Rankings
Rankings
507,416
Japan
10,235
22
Ranking Based On Selection: 23
Ramesh C Samanta
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,668
940
0.564
Asymmetric Catalysis and Synthesis
Homogeneous Catalysis
Electrocatalysis
* Total Citation Counts Rankings
Rankings
587,481
Japan
11,704
23
Ranking Based On Selection: 24
Dhananjay Kumar Deshmukh|Dhananjay Kumar Deshmukh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,321
728
0.551
* Total Citation Counts Rankings
Rankings
600,585
Japan
11,951
24
Ranking Based On Selection: 25
Taishi Kawamoto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,272
1,032
0.811
Social Psychology
Social Neuroscience
Family Psychology
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