Citation Rankings
Highly Cited Researchers
Okayama University Highly Cited Researchers Citation Rankings 2025
The Citation Rankings (Highly Cited Researchers) 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
Astroparticle Physics
Elementary Particle Physics
High Energy Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
136,852
37,828
0.276
* Total Citation Counts Rankings
Ranking Based On Selection :2
Food phytochemicals
Isothiocyanates
Polyphenols
Chemoprevention
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,026
6,359
0.334
* Total Citation Counts Rankings
Ranking Based On Selection :3
Geochemistry
Cosmochemistry
Petrology
Geophysics
Planetary Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,146
4,829
0.341
* Total Citation Counts Rankings
Ranking Based On Selection :4
cancer stem cell
cancer biology
drug delivery
molecular targeting
cancer treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,038
3,243
0.249
* Total Citation Counts Rankings
Ranking Based On Selection :5
Computational Materials Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,952
4,253
0.475
* Total Citation Counts Rankings
Ranking Based On Selection :6
Dental Materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,597
5,861
0.682
* Total Citation Counts Rankings
Ranking Based On Selection :7
High pressure Earth and Planetary Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,967
3,239
0.465
* Total Citation Counts Rankings
Ranking Based On Selection :8
Astronomy
Astrophysics
Astronomical Instrumentation
Adaptive Optics
Polarimetry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,042
2,172
0.359
* Total Citation Counts Rankings
Ranking Based On Selection :9
Epidemiology、Environmental Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,464
1,519
0.278
* Total Citation Counts Rankings
Ranking Based On Selection :10
Software Engineering
Empirical Software Engineering
Software Protection
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,452
2,030
0.372
* Total Citation Counts Rankings
Ranking Based On Selection :11
Electrical machines
Machine design
Power electronics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,073
2,138
0.421
* Total Citation Counts Rankings
Ranking Based On Selection :12
geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,592
1,347
0.293
* Total Citation Counts Rankings
Ranking Based On Selection :13
Nanoscience
Nanotechnology
Nanocarbons
" Energy Materials" "Organic and Inorganic Materials"
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,565
1,855
0.406
* Total Citation Counts Rankings
Ranking Based On Selection :14
Mineralogy
Crystal chemistry
magma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,398
981
0.223
* Total Citation Counts Rankings
Ranking Based On Selection :15
Earth science
Planetary science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,288
1,774
0.414
* Total Citation Counts Rankings
Ranking Based On Selection :16
Artificial Intelligence
Systems Optimization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,180
1,784
0.427
* Total Citation Counts Rankings
Ranking Based On Selection :17
Food hygeine
Disinfection
Sterilization
Virus
Prion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,006
1,911
0.477
* Total Citation Counts Rankings
Ranking Based On Selection :18
Material science
Condensed Matter
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,993
2,133
0.534
* Total Citation Counts Rankings
Ranking Based On Selection :19
Power Electronics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,695
1,370
0.371
* Total Citation Counts Rankings
Ranking Based On Selection :20
High pressure
Mineral physics
Planetary science
High-pressure mineral physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,549
1,429
0.403
* Total Citation Counts Rankings
Ranking Based On Selection :21
Artificial Intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,287
976
0.297
* Total Citation Counts Rankings
Ranking Based On Selection :22
terahertz
laser
superconductivity
sensor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,990
1,429
0.478
* Total Citation Counts Rankings
Ranking Based On Selection :23
materials science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,898
886
0.306
* Total Citation Counts Rankings
Ranking Based On Selection :24
Planetary Science
Mineralogy
Astrobiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,849
1,847
0.648
* Total Citation Counts Rankings
Ranking Based On Selection :25
control
robot
factorization
acrobot
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,745
1,243
0.453
* Total Citation Counts Rankings
Rankings
1,712
17
1
Ranking Based On Selection: 1
Hirokazu Ishino
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
136,852
37,828
0.276
Astroparticle Physics
Elementary Particle Physics
High Energy Physics
* Total Citation Counts Rankings
Rankings
43,602
645
7
Ranking Based On Selection: 2
Yoshimasa Nakamura
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,026
6,359
0.334
Food phytochemicals
Isothiocyanates
Polyphenols
Chemoprevention
* Total Citation Counts Rankings
Rankings
64,935
1,042
9
Ranking Based On Selection: 3
Eizo Nakamura
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,146
4,829
0.341
Geochemistry
Cosmochemistry
Petrology
Geophysics
Planetary Science
* Total Citation Counts Rankings
Rankings
72,141
1,190
10
Ranking Based On Selection: 4
Masaharu Seno|妹尾昌治
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,038
3,243
0.249
cancer stem cell
cancer biology
drug delivery
molecular targeting
cancer treatment
* Total Citation Counts Rankings
Rankings
112,420
2,054
17
Ranking Based On Selection: 5
Harald O Jeschke
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,952
4,253
0.475
Computational Materials Science
* Total Citation Counts Rankings
Rankings
117,678
2,154
19
Ranking Based On Selection: 6
Kumiko Yoshihara
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,597
5,861
0.682
* Total Citation Counts Rankings
Rankings
148,000
2,852
27
Ranking Based On Selection: 7
Takashi Yoshino
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,967
3,239
0.465
High pressure Earth and Planetary Science
* Total Citation Counts Rankings
Rankings
171,273
3,347
3
Ranking Based On Selection: 8
Makoto Watanabe|M. Watanabe, 渡邉 誠, 渡邊 誠
Okayama University of Science
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,042
2,172
0.359
Astronomy
Astrophysics
Astronomical Instrumentation
Adaptive Optics
Polarimetry
* Total Citation Counts Rankings
Rankings
189,111
3,751
41
Ranking Based On Selection: 9
Toshihide Tsuda
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,464
1,519
0.278
Epidemiology、Environmental Health
* Total Citation Counts Rankings
Rankings
189,512
3,761
42
Ranking Based On Selection: 10
Akito Monden
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,452
2,030
0.372
Software Engineering
Empirical Software Engineering
Software Protection
* Total Citation Counts Rankings
Rankings
203,268
4,055
46
Ranking Based On Selection: 11
Masatsugu Takemoto
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,073
2,138
0.421
Electrical machines
Machine design
Power electronics
* Total Citation Counts Rankings
Rankings
223,683
4,514
49
Ranking Based On Selection: 12
Hitoshi Chiba
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,592
1,347
0.293
* Total Citation Counts Rankings
Rankings
224,794
4,543
51
Ranking Based On Selection: 13
Yasuhiko Hayashi
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,565
1,855
0.406
Nanoscience
Nanotechnology
Nanocarbons
" Energy Materials" "Organic and Inorganic Materials"
* Total Citation Counts Rankings
Rankings
232,801
4,699
54
Ranking Based On Selection: 14
Masami Kanzaki
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,398
981
0.223
Mineralogy
Crystal chemistry
magma
* Total Citation Counts Rankings
Rankings
238,282
4,816
56
Ranking Based On Selection: 15
Katsura Kobayashi
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,288
1,774
0.414
Earth science
Planetary science
* Total Citation Counts Rankings
Rankings
243,981
4,932
58
Ranking Based On Selection: 16
Tatsushi Nishi
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,180
1,784
0.427
Artificial Intelligence
Systems Optimization
* Total Citation Counts Rankings
Rankings
253,674
5,110
6
Ranking Based On Selection: 17
Akikazu Sakudo
Okayama University of Science
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,006
1,911
0.477
Food hygeine
Disinfection
Sterilization
Virus
Prion
* Total Citation Counts Rankings
Rankings
254,456
5,124
7
Ranking Based On Selection: 18
Yoichi Tanabe
Okayama University of Science
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,993
2,133
0.534
Material science
Condensed Matter
* Total Citation Counts Rankings
Rankings
272,298
5,496
63
Ranking Based On Selection: 19
Eiji Hiraki
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,695
1,370
0.371
* Total Citation Counts Rankings
Rankings
281,928
5,706
68
Ranking Based On Selection: 20
Hidenori Terasaki
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,549
1,429
0.403
High pressure
Mineral physics
Planetary science
High-pressure mineral physics
* Total Citation Counts Rankings
Rankings
301,070
6,136
1
Ranking Based On Selection: 21
Naoto Iwahashi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,287
976
0.297
* Total Citation Counts Rankings
Rankings
325,707
6,640
75
Ranking Based On Selection: 22
Toshihiko Kiwa
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,990
1,429
0.478
terahertz
laser
superconductivity
sensor
* Total Citation Counts Rankings
Rankings
334,104
6,779
76
Ranking Based On Selection: 23
Akira Kishimoto
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,898
886
0.306
* Total Citation Counts Rankings
Rankings
338,695
6,874
77
Ranking Based On Selection: 24
Matthew Izawa
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,849
1,847
0.648
Planetary Science
Mineralogy
Astrobiology
* Total Citation Counts Rankings
Rankings
349,124
7,093
2
Ranking Based On Selection: 25
Xin Xin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,745
1,243
0.453
control
robot
factorization
acrobot