Citation Rankings
Highly Cited Researchers

Okayama University Highly Cited Researchers CitationEngineering & Technology / Earth Sciences 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
Japan
Eizo Nakamura
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 :2
Japan
Hitoshi Chiba
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 :3
Japan
Katsura Kobayashi
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 :4
Japan
Hidenori Terasaki
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 :5
Japan
Matthew Izawa
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 :6
Japan
Shin Ichi Nishimura
Geotechnical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
900
404
0.449
* Total Citation Counts Rankings
Ranking Based On Selection :7
Japan
Takeshi Imayama
Geology
Tectonics
Geochronology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
772
476
0.617
* Total Citation Counts Rankings
Ranking Based On Selection :8
Japan
Dilan M Ratnayake
Astrobiology
Geochemistry
Petrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
143
143
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :9
Japan
Menglu Huang
Bayesian Modeling
Machine Learning
Risk and Reliability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30
30
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :10
Japan
Nghiem Van Dao
Geochemistry
Isotopes
Petrology
Geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
16
1.000
* Total Citation Counts Rankings
Rankings
64,544
Japan
1,041
9
Ranking Based On Selection: 1
Eizo Nakamura
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
222,251
Japan
4,503
49
Ranking Based On Selection: 2
Hitoshi Chiba
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,592
1,347
0.293
* Total Citation Counts Rankings
Rankings
236,764
Japan
4,805
56
Ranking Based On Selection: 3
Katsura Kobayashi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,288
1,774
0.414
* Total Citation Counts Rankings
Rankings
280,133
Japan
5,693
68
Ranking Based On Selection: 4
Hidenori Terasaki
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
336,552
Japan
6,856
77
Ranking Based On Selection: 5
Matthew Izawa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,849
1,847
0.648
* Total Citation Counts Rankings
Rankings
716,491
Japan
13,828
150
Ranking Based On Selection: 6
Shin Ichi Nishimura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
900
404
0.449
* Total Citation Counts Rankings
Rankings
770,653
Japan
14,746
19
Ranking Based On Selection: 7
Takeshi Imayama
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
772
476
0.617
* Total Citation Counts Rankings
Rankings
1,437,570
Japan
24,433
227
Ranking Based On Selection: 8
Dilan M Ratnayake
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
143
143
1.000
* Total Citation Counts Rankings
Rankings
1,976,247
Japan
32,125
295
Ranking Based On Selection: 9
Menglu Huang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30
30
1.000
Bayesian Modeling
Machine Learning
Risk and Reliability
* Total Citation Counts Rankings
Rankings
2,115,793
Japan
34,149
308
Ranking Based On Selection: 10
Nghiem Van Dao
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
16
1.000