Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
* Total Citation Counts Rankings
World Rank
256,964
Country Rank
5,213
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/5125.jpg)
![Japan](/flags/jp.png)
![Takuma Matsubara](/user/assets/images/profile/no-profile-photo.png)
Biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,815
1,474
0.386
* Total Citation Counts Rankings
World Rank
282,162
Country Rank
5,753
Institution Rank : 2
![](https://cdn.adscientificindex.com/logos/5125.jpg)
![Japan](/flags/jp.png)
![Kitamura Chiaki](https://cdn.adscientificindex.com/pictures/4c/509073.jpg)
endodontics
regeneration
biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,423
1,487
0.434
* Total Citation Counts Rankings
World Rank
301,889
Country Rank
6,184
Institution Rank : 3
![](https://cdn.adscientificindex.com/logos/5125.jpg)
![Japan](/flags/jp.png)
![Taiji Nakamura](/user/assets/images/profile/no-profile-photo.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,162
705
0.223
* Total Citation Counts Rankings
World Rank
513,026
Country Rank
10,371
Institution Rank : 4
![](https://cdn.adscientificindex.com/logos/5125.jpg)
![Japan](/flags/jp.png)
![Hiroshi Ikeda](/pictures/bd/485967.jpg)
material science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,556
856
0.550
* Total Citation Counts Rankings
World Rank
642,268
Country Rank
12,643
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/5125.jpg)
![Japan](/flags/jp.png)
![Ryota Yamasaki](/pictures/52/464703.jpg)
Bacteriology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,074
990
0.922
* Total Citation Counts Rankings
World Rank
1,796,308
Country Rank
31,567
Institution Rank : 6
![](https://cdn.adscientificindex.com/logos/5125.jpg)
![Japan](/flags/jp.png)
![豊野孝](/user/assets/images/profile/no-profile-photo.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28
0
0.000
* Total Citation Counts Rankings
World Rank
2,181,187
Country Rank
37,132
Institution Rank : 7
![](https://cdn.adscientificindex.com/logos/5125.jpg)
![Japan](/flags/jp.png)
![小野堅太郎](/user/assets/images/profile/no-profile-photo.png)
口腔生理学
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
* Total Citation Counts Rankings
World Ranking
256,964
Country Ranking
5,213
Institution Ranking
1
Takuma Matsubara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,815
1,474
0.386
* Total Citation Counts Rankings
World Ranking
282,162
Country Ranking
5,753
Institution Ranking
2
Kitamura Chiaki
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,423
1,487
0.434
![](https://cdn.adscientificindex.com/logos/5125.jpg)
endodontics
regeneration
biology
* Total Citation Counts Rankings
World Ranking
301,889
Country Ranking
6,184
Institution Ranking
3
Taiji Nakamura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,162
705
0.223
* Total Citation Counts Rankings
World Ranking
513,026
Country Ranking
10,371
Institution Ranking
4
Hiroshi Ikeda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,556
856
0.550
* Total Citation Counts Rankings
World Ranking
642,268
Country Ranking
12,643
Institution Ranking
5
Ryota Yamasaki
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,074
990
0.922
* Total Citation Counts Rankings
World Ranking
1,796,308
Country Ranking
31,567
Institution Ranking
6
豊野孝
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28
0
0.000
* Total Citation Counts Rankings
World Ranking
2,181,187
Country Ranking
37,132
Institution Ranking
7
小野堅太郎
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500