Total 2,403,032 scientists, country 221, and institutions 24,466 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
![Shoji Maruo](https://cdn.adscientificindex.com/pictures/de/419104.jpg)
3D printing
additive manufacturing
lab-on-a-chip
MEMS
optical trapping
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
37
0.649
* Total i10 IndexRankings
Ranking Based On Selection: 2
![Tadahiro Shibutani](https://cdn.adscientificindex.com/pictures/6e/427640.jpg)
Mechanical Engineering
Material Science
Safety Engineering
Risk management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
24
0.500
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Ken Nakano](https://cdn.adscientificindex.com/pictures/12/364389.jpg)
Friction
Tribology
Dynamics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
28
0.609
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Jun Matsui](/user/assets/images/profile/no-profile-photo.png)
fluid dynamics
turbo machinery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
16
0.356
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Sumi Y](/user/assets/images/profile/no-profile-photo.png)
mechanics fracture ship structures
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
13
0.302
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Keiichi Kitamura](https://cdn.adscientificindex.com/pictures/5a/350879.jpg)
Computational Fluid Dynamics
Fluid Dynamics
Aerodynamics
Hypersonic Flow
Flux Function
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
29
0.744
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Takuto Araki](https://cdn.adscientificindex.com/pictures/16/485639.jpg)
Mechanical engineering
Fuel Cell
Heat and Mass transfer
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
21
0.677
* Total i10 IndexRankings
Ranking Based On Selection: 8
![Kazuhiro Ishii](/user/assets/images/profile/no-profile-photo.png)
Combustion
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
14
0.452
* Total i10 IndexRankings
Ranking Based On Selection: 9
![Toru Hyakutake](https://cdn.adscientificindex.com/pictures/ce/485310.jpg)
Fluid Dynamics
Biomechanics
Simulation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
16
0.593
* Total i10 IndexRankings
Ranking Based On Selection: 10
![Ohmi Fuchiwaki](https://cdn.adscientificindex.com/pictures/a0/485651.jpg)
Mechanism
Measurement
Control
Actuator
Manipulation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
11
0.440
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
* Total i10 IndexRankings
Ranking Based On Selection: 11
![Hiroshi Nakatsugawa](https://cdn.adscientificindex.com/pictures/37/334406.jpg)
Thermoelectrics
Electronic structure
Crystal structure
Solid State Physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
8
0.333
* Total i10 IndexRankings
Ranking Based On Selection: 12
![Jun Shinozuka](/user/assets/images/profile/no-profile-photo.png)
Mechanical Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
4
0.308
* Total i10 IndexRankings
Ranking Based On Selection: 13
![Takahiro Yamada](/user/assets/images/profile/no-profile-photo.png)
Computational Mechanics
Numerical Analysis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
4
0.308
* Total i10 IndexRankings
Ranking Based On Selection: 14
![Sato Yasukazu](/user/assets/images/profile/no-profile-photo.png)
Mechatronics
Fluid Power Systems
Machine Design
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
3
0.429
* Total i10 IndexRankings
Ranking Based On Selection: 15
![Keiichiro Takato](https://cdn.adscientificindex.com/pictures/4b/4623568.jpg)
Mechanical engineering education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
0
0.000
* Total i10 IndexRankings
Ranking Based On Selection: 16
![Naohiro Kado](/user/assets/images/profile/no-profile-photo.png)
Tribology
Stick-Slip
Vibration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
1
0.250
Shoji Maruo
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
37
0.649
3D printing
additive manufacturing
lab-on-a-chip
MEMS
optical trapping
Tadahiro Shibutani
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
24
0.500
Mechanical Engineering
Material Science
Safety Engineering
Risk management
Ken Nakano
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
28
0.609
Friction
Tribology
Dynamics
Jun Matsui
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
16
0.356
fluid dynamics
turbo machinery
Sumi Y
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
13
0.302
mechanics fracture ship structures
Keiichi Kitamura
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
29
0.744
Computational Fluid Dynamics
Fluid Dynamics
Aerodynamics
Hypersonic Flow
Flux Function
Takuto Araki
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
21
0.677
Mechanical engineering
Fuel Cell
Heat and Mass transfer
Kazuhiro Ishii
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
14
0.452
Toru Hyakutake
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
16
0.593
Fluid Dynamics
Biomechanics
Simulation
Ohmi Fuchiwaki
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
11
0.440
Mechanism
Measurement
Control
Actuator
Manipulation
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
Hiroshi Nakatsugawa
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
8
0.333
Thermoelectrics
Electronic structure
Crystal structure
Solid State Physics
Jun Shinozuka
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
4
0.308
Mechanical Engineering
Takahiro Yamada
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
4
0.308
Computational Mechanics
Numerical Analysis
Sato Yasukazu
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
3
0.429
Mechatronics
Fluid Power Systems
Machine Design
Keiichiro Takato
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
0
0.000
Mechanical engineering education
Naohiro Kado
Yokohama National University
Yokohama, Japan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
1
0.250
Tribology
Stick-Slip
Vibration