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 :26
extracellular vesicles
stress biology
tumor microenvironment
gene regulation
cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,261
2,764
0.649
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :27
感染症
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,245
2,729
0.841
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :28
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,211
2,635
0.424
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :29
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,691
2,598
0.965
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :30
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,043
2,546
0.505
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :31
Endoscopy
Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,534
2,516
0.455
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :32
Osteoarthritis
Rheumatoid arthritis
Orthopaedics
Hand surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,225
2,338
0.324
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :33
Evolutionary Ecology
Insect Behavior
Applied Entomology
Ethology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,665
2,245
0.396
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :34
Plant molecular genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,046
2,239
0.318
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :35
bone biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,968
2,097
0.351
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :36
Material science
Condensed Matter
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,937
2,082
0.529
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :37
Astronomy
Astrophysics
Astronomical Instrumentation
Adaptive Optics
Polarimetry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,946
2,075
0.349
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :38
Electrical machines
Machine design
Power electronics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,987
2,055
0.412
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :39
Control Theory
Soft-computing
Robot Control
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,360
2,020
0.216
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :40
Brain Tumor
Gene Therapy
Targeted Drug
Skull Base
Endoscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,706
1,992
0.349
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :41
Software Engineering
Empirical Software Engineering
Software Protection
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,347
1,936
0.362
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :42
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,320
1,869
0.296
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :43
Food hygeine
Disinfection
Sterilization
Virus
Prion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,920
1,831
0.467
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :44
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,461
1,831
0.744
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :45
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,095
1,821
0.299
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :46
生体磁気，非破壊検査，磁気センサ
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,716
1,809
0.316
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :47
Planetary Science
Mineralogy
Astrobiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,807
1,805
0.643
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :48
Nanoscience
Nanotechnology
Nanocarbons
" Energy Materials" "Organic and Inorganic Materials"
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,499
1,790
0.398
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :49
Chronobiology
Circadian rhythms
Drosophila
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,852
1,774
0.461
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :50
固体物理学、超伝導、物性化学
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,109
1,770
0.290
* Last 6 Years Citation Counts Rankings
Rankings
178,734
2,891
25
Ranking Based On Selection: 26
Takanori Eguchi 江口 傑徳|Taka Eguchi
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,261
2,764
0.649
extracellular vesicles
stress biology
tumor microenvironment
gene regulation
cancer
* Last 6 Years Citation Counts Rankings
Rankings
181,352
2,939
26
Ranking Based On Selection: 27
萩谷英大
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,245
2,729
0.841
* Last 6 Years Citation Counts Rankings
Rankings
188,297
3,061
27
Ranking Based On Selection: 28
Takuya Matsumoto
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,211
2,635
0.424
* Last 6 Years Citation Counts Rankings
Rankings
191,147
3,111
28
Ranking Based On Selection: 29
Yoshihiko Kobayashi
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,691
2,598
0.965
* Last 6 Years Citation Counts Rankings
Rankings
195,279
3,210
29
Ranking Based On Selection: 30
Takeshi Takarada
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,043
2,546
0.505
* Last 6 Years Citation Counts Rankings
Rankings
197,811
3,251
30
Ranking Based On Selection: 31
Yoshiro Kawahara
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,534
2,516
0.455
Endoscopy
Gastroenterology
* Last 6 Years Citation Counts Rankings
Rankings
213,759
3,528
31
Ranking Based On Selection: 32
Keiichiro Nishida
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,225
2,338
0.324
Osteoarthritis
Rheumatoid arthritis
Orthopaedics
Hand surgery
* Last 6 Years Citation Counts Rankings
Rankings
223,054
3,696
32
Ranking Based On Selection: 33
Takahisa Miyatake
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,665
2,245
0.396
Evolutionary Ecology
Insect Behavior
Applied Entomology
Ethology
* Last 6 Years Citation Counts Rankings
Rankings
223,640
3,708
33
Ranking Based On Selection: 34
Taku Takahashi
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,046
2,239
0.318
* Last 6 Years Citation Counts Rankings
Rankings
239,041
3,985
34
Ranking Based On Selection: 35
Hiroshi Kamioka
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,968
2,097
0.351
* Last 6 Years Citation Counts Rankings
Rankings
240,839
4,017
2
Ranking Based On Selection: 36
Yoichi Tanabe
Okayama University of Science
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,937
2,082
0.529
Material science
Condensed Matter
* Last 6 Years Citation Counts Rankings
Rankings
241,609
4,028
3
Ranking Based On Selection: 37
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
5,946
2,075
0.349
Astronomy
Astrophysics
Astronomical Instrumentation
Adaptive Optics
Polarimetry
* Last 6 Years Citation Counts Rankings
Rankings
243,961
4,068
35
Ranking Based On Selection: 38
Masatsugu Takemoto
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,987
2,055
0.412
Electrical machines
Machine design
Power electronics
* Last 6 Years Citation Counts Rankings
Rankings
248,226
4,140
36
Ranking Based On Selection: 39
Keigo Watanabe
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,360
2,020
0.216
* Last 6 Years Citation Counts Rankings
Rankings
251,846
4,206
37
Ranking Based On Selection: 40
Kazuhiko Kurozumi
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,706
1,992
0.349
Brain Tumor
Gene Therapy
Targeted Drug
Skull Base
Endoscopy
* Last 6 Years Citation Counts Rankings
Rankings
259,009
4,354
38
Ranking Based On Selection: 41
Akito Monden
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,347
1,936
0.362
Software Engineering
Empirical Software Engineering
Software Protection
* Last 6 Years Citation Counts Rankings
Rankings
268,214
4,535
39
Ranking Based On Selection: 42
Satoshi Hirohata
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,320
1,869
0.296
* Last 6 Years Citation Counts Rankings
Rankings
273,626
4,628
4
Ranking Based On Selection: 43
Akikazu Sakudo
Okayama University of Science
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,920
1,831
0.467
Food hygeine
Disinfection
Sterilization
Virus
Prion
* Last 6 Years Citation Counts Rankings
Rankings
273,691
4,630
40
Ranking Based On Selection: 44
Long Jiang Yu
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,461
1,831
0.744
* Last 6 Years Citation Counts Rankings
Rankings
275,032
4,659
41
Ranking Based On Selection: 45
Yoji Kawano
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,095
1,821
0.299
* Last 6 Years Citation Counts Rankings
Rankings
276,804
4,696
42
Ranking Based On Selection: 46
Keiji Tsukada
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,716
1,809
0.316
* Last 6 Years Citation Counts Rankings
Rankings
277,422
4,707
43
Ranking Based On Selection: 47
Matthew Izawa
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,807
1,805
0.643
Planetary Science
Mineralogy
Astrobiology
* Last 6 Years Citation Counts Rankings
Rankings
279,571
4,749
44
Ranking Based On Selection: 48
Yasuhiko Hayashi
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,499
1,790
0.398
Nanoscience
Nanotechnology
Nanocarbons
" Energy Materials" "Organic and Inorganic Materials"
* Last 6 Years Citation Counts Rankings
Rankings
282,030
4,793
45
Ranking Based On Selection: 49
Taishi Yoshii
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,852
1,774
0.461
Chronobiology
Circadian rhythms
Drosophila
* Last 6 Years Citation Counts Rankings
Rankings
282,645
4,806
46
Ranking Based On Selection: 50
Yoshihiro Kubozono
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,109
1,770
0.290