i10 Productivity
Rankings

Okayama University/ ScientistsEngineering & Technology / Earth Sciences i10 Productivity Rankings 2025

Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings"

* Total i10 IndexRankings
Ranking Based On Selection :1
Japan
Eizo Nakamura
Geochemistry
Cosmochemistry
Petrology
Geophysics
Planetary Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
192
139
0.724
* Total i10 IndexRankings
Ranking Based On Selection :2
Japan
Hidenori Terasaki
High pressure
Mineral physics
Planetary science
High-pressure mineral physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
69
47
0.681
* Total i10 IndexRankings
Ranking Based On Selection :3
Japan
Katsura Kobayashi
Earth science
Planetary science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
41
0.759
* Total i10 IndexRankings
Ranking Based On Selection :4
Japan
Matthew Izawa
Planetary Science
Mineralogy
Astrobiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
53
39
0.736
* Total i10 IndexRankings
Ranking Based On Selection :5
Japan
Hitoshi Chiba
geochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
51
33
0.647
* Total i10 IndexRankings
Ranking Based On Selection :6
Japan
Shin Ichi Nishimura
Geotechnical Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
9
0.391
* Total i10 IndexRankings
Ranking Based On Selection :7
Japan
Takeshi Imayama
Geology
Tectonics
Geochronology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
14
0.875
* Total i10 IndexRankings
Ranking Based On Selection :8
Japan
Dilan M Ratnayake
Metamorphic petrology
Stable isotopes
Geochemistry
Bio-geochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection :9
Japan
Menglu Huang
Geotechnical Engineering、Uncertainty Quantification
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection :10
Japan
Nghiem Van Dao
Geochemistry
Isotopes
Petrology
Geology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 1
Eizo Nakamura
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
192
139
0.724
Geochemistry
Cosmochemistry
Petrology
Geophysics
Planetary Science
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 2
Hidenori Terasaki
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
69
47
0.681
High pressure
Mineral physics
Planetary science
High-pressure mineral physics
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 3
Katsura Kobayashi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
41
0.759
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 4
Matthew Izawa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
53
39
0.736
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 5
Hitoshi Chiba
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
51
33
0.647
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 6
Shin Ichi Nishimura
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
9
0.391
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 7
Takeshi Imayama
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
14
0.875
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 8
Dilan M Ratnayake
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Metamorphic petrology
Stable isotopes
Geochemistry
Bio-geochemistry
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 9
Menglu Huang
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Geotechnical Engineering、Uncertainty Quantification
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 10
Nghiem Van Dao
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000