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. Click for "last 6 years' i10 index". Also see: Universities Rankings 2024 (Sort by : Total i10 Index) and Universities Rankings 2024 (Sort by : Last 6 Years i10 Index)
* Total i10 Index Rankings
World Rank
92,969
Country Rank
2,299
Institution Rank : 24
![](https://cdn.adscientificindex.com/logos/6558.jpg)
![Japan](/flags/jp.png)
![Yoshiro Kawahara](https://cdn.adscientificindex.com/pictures/59/416573.jpg)
Endoscopy
Gastroenterology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
112
63
0.563
* Total i10 Index Rankings
World Rank
2,046,395
Country Rank
35,271
Institution Rank : 324
![](https://cdn.adscientificindex.com/logos/6558.jpg)
![Japan](/flags/jp.png)
![Ryosuke Sato](/user/assets/images/profile/no-profile-photo.png)
Gastroenterology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
92,969
![Japan](/flags/jp.png)
2,299
![](https://cdn.adscientificindex.com/logos/6558.jpg)
24
Yoshiro Kawahara
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
112
63
0.563
![](https://cdn.adscientificindex.com/logos/6558.jpg)
Endoscopy
Gastroenterology
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
2,046,395
![Japan](/flags/jp.png)
35,271
![](https://cdn.adscientificindex.com/logos/6558.jpg)
324
Ryosuke Sato
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0