Citation Rankings
Highly Cited Researchers
Okayama University Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 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
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :151
Plant taxonomy and phylogeny
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,006
504
0.501
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :152
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,629
501
0.138
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :153
Organizational behavior/human resource management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
650
499
0.768
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :154
Computer Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
741
480
0.648
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :155
Photochemistry
Water splitting
Carbon Nanotube
Dendrimer
Fullerene
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,083
470
0.226
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :156
C-H activation
synthesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
764
461
0.603
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :157
Isotope Geochemistry
Petrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
485
454
0.936
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :158
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
813
450
0.554
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :159
Soil Science
Environmental Science
Agricultural Land Conservation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,226
447
0.365
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :160
Spine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,546
445
0.288
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :161
分子生物学
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,029
441
0.429
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :162
Geology
Tectonics
Geochronology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
735
441
0.600
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :163
Soft Matter
Microfluidics
Biomaterials
Complex fluids
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
729
432
0.593
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :164
Veterinary Medicine
Rheumatology
Bone Metabolism
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
488
429
0.879
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :165
argon geochronology
diffusion in minerals
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,471
425
0.289
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :166
Psychiatry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
459
417
0.908
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :167
Plasma Science for Materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,257
415
0.330
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :168
Homogeneous Catalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,432
409
0.168
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :169
Biomathematics
Operator Algebras
Dynamical Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,187
402
0.339
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :170
Geotechnical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
870
388
0.446
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :171
Condensed Matter Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,246
384
0.171
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :172
Electromagnetic Compatibility
Signal Integrity
Power Integrity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,622
384
0.237
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :173
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
980
384
0.392
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :174
Hydrology
Irrigation and Drainage
Watershed Management
Water Quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
763
383
0.502
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :175
Forest Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,061
370
0.349
* Last 6 Years Citation Counts Rankings
Rankings
706,625
12,907
16
Ranking Based On Selection: 151
Tetsuo Ohi Toma|Tetsuo Toma, Tetsuo Ohi
Okayama University of Science
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,006
504
0.501
* Last 6 Years Citation Counts Rankings
Rankings
708,589
12,937
133
Ranking Based On Selection: 152
Arimoto-Kobayashi
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,629
501
0.138
* Last 6 Years Citation Counts Rankings
Rankings
710,606
12,975
134
Ranking Based On Selection: 153
Yuanyuan Gong
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
650
499
0.768
Organizational behavior/human resource management
* Last 6 Years Citation Counts Rankings
Rankings
725,344
13,261
135
Ranking Based On Selection: 154
Zeynep Yucel
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
741
480
0.648
* Last 6 Years Citation Counts Rankings
Rankings
733,136
13,382
136
Ranking Based On Selection: 155
Yutaka Takaguchi
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,083
470
0.226
Photochemistry
Water splitting
Carbon Nanotube
Dendrimer
Fullerene
* Last 6 Years Citation Counts Rankings
Rankings
740,909
13,514
137
Ranking Based On Selection: 156
Jeong Taejoo
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
764
461
0.603
* Last 6 Years Citation Counts Rankings
Rankings
747,200
13,633
138
Ranking Based On Selection: 157
Yunchao Shu
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
485
454
0.936
Isotope Geochemistry
Petrology
* Last 6 Years Citation Counts Rankings
Rankings
750,356
13,692
139
Ranking Based On Selection: 158
Tomoka Takao
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
813
450
0.554
* Last 6 Years Citation Counts Rankings
Rankings
752,838
13,745
140
Ranking Based On Selection: 159
Yasushi Mori
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,226
447
0.365
Soil Science
Environmental Science
Agricultural Land Conservation
* Last 6 Years Citation Counts Rankings
Rankings
754,612
13,771
141
Ranking Based On Selection: 160
Masato Tanaka
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,546
445
0.288
* Last 6 Years Citation Counts Rankings
Rankings
758,251
13,821
142
Ranking Based On Selection: 161
Kazunori Watanabe
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,029
441
0.429
* Last 6 Years Citation Counts Rankings
Rankings
758,448
13,825
17
Ranking Based On Selection: 162
Takeshi Imayama
Okayama University of Science
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
735
441
0.600
Geology
Tectonics
Geochronology
* Last 6 Years Citation Counts Rankings
Rankings
766,531
13,961
143
Ranking Based On Selection: 163
Takaichi Watanabe
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
729
432
0.593
Soft Matter
Microfluidics
Biomaterials
Complex fluids
* Last 6 Years Citation Counts Rankings
Rankings
769,639
14,023
18
Ranking Based On Selection: 164
Kohei Murakami
Okayama University of Science
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
488
429
0.879
Veterinary Medicine
Rheumatology
Bone Metabolism
* Last 6 Years Citation Counts Rankings
Rankings
772,820
14,070
19
Ranking Based On Selection: 165
Hironobu Hyodo
Okayama University of Science
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,471
425
0.289
* Last 6 Years Citation Counts Rankings
Rankings
781,336
14,212
144
Ranking Based On Selection: 166
Shinji Sakamoto
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
459
417
0.908
* Last 6 Years Citation Counts Rankings
Rankings
782,677
14,231
20
Ranking Based On Selection: 167
中谷達行|中谷達行
Okayama University of Science
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,257
415
0.330
Plasma Science for Materials
* Last 6 Years Citation Counts Rankings
Rankings
788,619
14,325
145
Ranking Based On Selection: 168
Toshiyuki Oshiki
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,432
409
0.168
* Last 6 Years Citation Counts Rankings
Rankings
795,758
14,433
146
Ranking Based On Selection: 169
Tsuyoshi Kajiwara
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,187
402
0.339
Biomathematics
Operator Algebras
Dynamical Systems
* Last 6 Years Citation Counts Rankings
Rankings
810,868
14,689
147
Ranking Based On Selection: 170
Shin Ichi Nishimura
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
870
388
0.446
* Last 6 Years Citation Counts Rankings
Rankings
815,004
14,761
148
Ranking Based On Selection: 171
Shinji Kawasaki
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,246
384
0.171
* Last 6 Years Citation Counts Rankings
Rankings
815,036
14,762
149
Ranking Based On Selection: 172
Yoshitaka Toyota
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,622
384
0.237
Electromagnetic Compatibility
Signal Integrity
Power Integrity
* Last 6 Years Citation Counts Rankings
Rankings
815,159
14,769
150
Ranking Based On Selection: 173
Tetsuya Takeda
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
980
384
0.392
* Last 6 Years Citation Counts Rankings
Rankings
816,396
14,790
151
Ranking Based On Selection: 174
Hiroaki Somura
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
763
383
0.502
Hydrology
Irrigation and Drainage
Watershed Management
Water Quality
* Last 6 Years Citation Counts Rankings
Rankings
830,715
15,038
152
Ranking Based On Selection: 175
Muneto Hirobe
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,061
370
0.349