Citation Rankings
Highly Cited Researchers
Japan Highly Cited Researchers Citation Engineering & Technology in Japan Rankings 2025
Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: 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
machine learning
statistics
computer science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
316,376
111,467
0.352
* Total Citation Counts Rankings
Ranking Based On Selection :2
Materials Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
201,311
156,516
0.777
* Total Citation Counts Rankings
Ranking Based On Selection :3
Materials Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
179,332
54,158
0.302
* Total Citation Counts Rankings
Ranking Based On Selection :4
Astroparticle Physics
Elementary Particle Physics
High Energy Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
135,514
36,391
0.269
* Total Citation Counts Rankings
Ranking Based On Selection :5
Bioinformatics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134,336
67,962
0.506
* Total Citation Counts Rankings
Ranking Based On Selection :6
Pharmaceutical Development
Chemical Engineering
CFD
DEM Modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
127,131
82,813
0.651
* Total Citation Counts Rankings
Ranking Based On Selection :7
Tissue Engineering
Regenerative Medicine
Intelligent Polymer
Biomaterials
Drug Delivery Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
109,891
26,744
0.243
* Total Citation Counts Rankings
Ranking Based On Selection :8
Biomaterials
Polymers
Drug Delivery
Nanotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105,624
31,887
0.302
* Total Citation Counts Rankings
Ranking Based On Selection :9
Organic Electronics
OLED
Organic Semiconductors
Optoelectronics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97,726
49,290
0.504
* Total Citation Counts Rankings
Ranking Based On Selection :10
Materials Science
Physical Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,558
23,094
0.242
* Total Citation Counts Rankings
Ranking Based On Selection :11
Visualization
Digital Humanities
Monte Carlo Simulation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,867
32,925
0.375
* Total Citation Counts Rankings
Ranking Based On Selection :12
Photocatalysis
Solar energy conversion
Photofunctional Materials
Nanomaterials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,792
41,681
0.529
* Total Citation Counts Rankings
Ranking Based On Selection :13
Nanomaterials
Surface Science
Supramolecular Chemistry
Molecular Recognition
Self-assembly
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,555
26,359
0.390
* Total Citation Counts Rankings
Ranking Based On Selection :14
Electrical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,030
16,432
0.245
* Total Citation Counts Rankings
Ranking Based On Selection :15
Biomedical Signal Processing
Neural Engineering
EEG
Tensor Decomposition
Electronics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,562
25,391
0.387
* Total Citation Counts Rankings
Ranking Based On Selection :16
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,869
28,177
0.434
* Total Citation Counts Rankings
Ranking Based On Selection :17
Carbon Science
Applications of novel carbon materials
nanostructured carbons
Nanocarbons
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,881
16,962
0.279
* Total Citation Counts Rankings
Ranking Based On Selection :18
Semiconductor devices
Opto electronics
Power devices
High frequency devices
photocathode
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,515
16,699
0.276
* Total Citation Counts Rankings
Ranking Based On Selection :19
Global Health Policy
Universal Health Coverage
Health Emergency
Food Science & Nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,773
55,018
0.969
* Total Citation Counts Rankings
Ranking Based On Selection :20
Thermal management
Thermoelectric materials
Oxides
Thin Films
Materials Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,339
15,239
0.275
* Total Citation Counts Rankings
Ranking Based On Selection :21
Materials Science
Materials Science and Engineering
Magnetic Materials
Physical Metallurgy
Atom Probe Tomography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,097
22,468
0.408
* Total Citation Counts Rankings
Ranking Based On Selection :22
oxidative stress
ferroptosis
cancer prevention
nanomaterials
plasma medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,266
21,810
0.409
* Total Citation Counts Rankings
Ranking Based On Selection :23
Layered compounds
2D materials
nanosheets
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,019
19,174
0.362
* Total Citation Counts Rankings
Ranking Based On Selection :24
Materials Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,930
17,220
0.325
* Total Citation Counts Rankings
Ranking Based On Selection :25
photonics
quantum dot photonics
quantum optics
silicon photonics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,358
12,130
0.256
* Total Citation Counts Rankings
Rankings
163
4
1
Ranking Based On Selection: 1
Vapnik
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
316,376
111,467
0.352
machine learning
statistics
computer science
* Total Citation Counts Rankings
Rankings
754
10
2
Ranking Based On Selection: 2
Kenji Watanabe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
201,311
156,516
0.777
* Total Citation Counts Rankings
Rankings
967
11
2
Ranking Based On Selection: 3
Hideo Hosono
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
179,332
54,158
0.302
* Total Citation Counts Rankings
Rankings
1,655
16
1
Ranking Based On Selection: 4
Hirokazu Ishino
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
135,514
36,391
0.269
Astroparticle Physics
Elementary Particle Physics
High Energy Physics
* Total Citation Counts Rankings
Rankings
1,685
17
2
Ranking Based On Selection: 5
Minoru Kanehisa
Kyoto University
Kyoto, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134,336
67,962
0.506
* Total Citation Counts Rankings
Rankings
1,876
21
5
Ranking Based On Selection: 6
Wei Chen
Kyoto University
Kyoto, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
127,131
82,813
0.651
Pharmaceutical Development
Chemical Engineering
CFD
DEM Modeling
* Total Citation Counts Rankings
Rankings
2,463
27
1
Ranking Based On Selection: 7
Teruo Okano
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
109,891
26,744
0.243
Tissue Engineering
Regenerative Medicine
Intelligent Polymer
Biomaterials
Drug Delivery Systems
* Total Citation Counts Rankings
Rankings
2,673
29
1
Ranking Based On Selection: 8
Kazunori Kataoka
University of Tokyo
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105,624
31,887
0.302
Biomaterials
Polymers
Drug Delivery
Nanotechnology
* Total Citation Counts Rankings
Rankings
3,104
34
1
Ranking Based On Selection: 9
Chihaya Adachi
Kyushu University
Fukuoka, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97,726
49,290
0.504
Organic Electronics
OLED
Organic Semiconductors
Optoelectronics
* Total Citation Counts Rankings
Rankings
3,265
38
3
Ranking Based On Selection: 10
Kazuhito Hashimoto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,558
23,094
0.242
Materials Science
Physical Chemistry
* Total Citation Counts Rankings
Rankings
3,816
45
1
Ranking Based On Selection: 11
Satoshi Tanaka
Ritsumeikan University
Kyoto, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,867
32,925
0.375
Visualization
Digital Humanities
Monte Carlo Simulation
* Total Citation Counts Rankings
Rankings
4,588
53
4
Ranking Based On Selection: 12
Jinhua Ye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,792
41,681
0.529
Photocatalysis
Solar energy conversion
Photofunctional Materials
Nanomaterials
* Total Citation Counts Rankings
Rankings
5,947
71
5
Ranking Based On Selection: 13
Katsuhiko Ariga
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,555
26,359
0.390
Nanomaterials
Surface Science
Supramolecular Chemistry
Molecular Recognition
Self-assembly
* Total Citation Counts Rankings
Rankings
6,011
72
4
Ranking Based On Selection: 14
Hirofumi Akagi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,030
16,432
0.245
Electrical Engineering
* Total Citation Counts Rankings
Rankings
6,228
74
4
Ranking Based On Selection: 15
Andrzej Cichocki
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,562
25,391
0.387
Biomedical Signal Processing
Neural Engineering
EEG
Tensor Decomposition
Electronics
* Total Citation Counts Rankings
Rankings
6,327
76
1
Ranking Based On Selection: 16
Hideya Iwasaki
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,869
28,177
0.434
* Total Citation Counts Rankings
Rankings
7,029
80
1
Ranking Based On Selection: 17
Morinobu Endo
Shinshu University
Matsumoto, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,881
16,962
0.279
Carbon Science
Applications of novel carbon materials
nanostructured carbons
Nanocarbons
* Total Citation Counts Rankings
Rankings
7,111
82
4
Ranking Based On Selection: 18
Hiroshi Amano 天野 浩
Nagoya University
Nagoya, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,515
16,699
0.276
Semiconductor devices
Opto electronics
Power devices
High frequency devices
photocathode
* Total Citation Counts Rankings
Rankings
7,836
93
4
Ranking Based On Selection: 19
Shuhei Nomura
Keio University
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,773
55,018
0.969
Global Health Policy
Universal Health Coverage
Health Emergency
Food Science & Nutrition
* Total Citation Counts Rankings
Rankings
8,188
97
2
Ranking Based On Selection: 20
Hiromichi Ohta
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,339
15,239
0.275
Thermal management
Thermoelectric materials
Oxides
Thin Films
Materials Science
* Total Citation Counts Rankings
Rankings
8,248
99
6
Ranking Based On Selection: 21
Kazuhiro Hono
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,097
22,468
0.408
Materials Science
Materials Science and Engineering
Magnetic Materials
Physical Metallurgy
Atom Probe Tomography
* Total Citation Counts Rankings
Rankings
8,739
106
7
Ranking Based On Selection: 22
Shinya Toyokuni
Nagoya University
Nagoya, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,266
21,810
0.409
oxidative stress
ferroptosis
cancer prevention
nanomaterials
plasma medicine
* Total Citation Counts Rankings
Rankings
8,814
108
7
Ranking Based On Selection: 23
Takayoshi Sasaki
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,019
19,174
0.362
Layered compounds
2D materials
nanosheets
* Total Citation Counts Rankings
Rankings
8,840
109
4
Ranking Based On Selection: 24
Zenji Horita
Kyushu University
Fukuoka, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,930
17,220
0.325
* Total Citation Counts Rankings
Rankings
10,516
124
5
Ranking Based On Selection: 25
Yasuhiko Arakawa
University of Tokyo
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,358
12,130
0.256
photonics
quantum dot photonics
quantum optics
silicon photonics