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World Scientist and University Rankings 2026
Institute of Science Tokyo Natural Sciences 209 Scientists Subject Rankings
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 5 years. As of Jan 06, 2026, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.131.911) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H Index Rankings
Rankings
66
World Rank
2
Country Rank
1
University
Ranking Based On Selection:
1
* Total H Index Rankings
Rankings
11,116
World Rank
143
Country Rank
5
University
Ranking Based On Selection:
2
Natural Sciences / Chemical Sciences
Artificial photosynthesis | CO2 fixation | Heterogeneous photocatalysis | Solar energy conversio
Artificial photosynthesis | CO2 fixation | Heterogeneous photocatalysis | Solar energy conversio
H-Index Metrics
-
H-Index99
-
i10 Index285
-
Citation Counts61,875
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* Total H Index Rankings
Rankings
15,051
World Rank
202
Country Rank
6
University
Ranking Based On Selection:
3
Natural Sciences / Molecular Biology & Genetics
Gene expression | Chromatin regulation | Chromosome dynamics | Epigenetics | Histone modificatio
Gene expression | Chromatin regulation | Chromosome dynamics | Epigenetics | Histone modificatio
H-Index Metrics
-
H-Index91
-
i10 Index245
-
Citation Counts29,880
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* Total H Index Rankings
Rankings
18,524
World Rank
266
Country Rank
7
University
Ranking Based On Selection:
4
* Total H Index Rankings
Rankings
29,306
World Rank
443
Country Rank
9
University
Ranking Based On Selection:
5
* Total H Index Rankings
Rankings
32,107
World Rank
495
Country Rank
12
University
Ranking Based On Selection:
6
Natural Sciences / Chemical Sciences
Ionics | Structural Science | Proton Conductor | Oxide_Ion_Conductor | Ceramic Material
Ionics | Structural Science | Proton Conductor | Oxide_Ion_Conductor | Ceramic Material
H-Index Metrics
-
H-Index73
-
i10 Index253
-
Citation Counts19,065
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* Total H Index Rankings
Rankings
33,643
World Rank
525
Country Rank
13
University
Ranking Based On Selection:
7
* Total H Index Rankings
Rankings
36,722
World Rank
587
Country Rank
15
University
Ranking Based On Selection:
8
* Total H Index Rankings
Rankings
38,439
World Rank
624
Country Rank
17
University
Ranking Based On Selection:
9
* Total H Index Rankings
Rankings
40,592
World Rank
678
Country Rank
20
University
Ranking Based On Selection:
10
* Total H Index Rankings
Rankings
44,044
World Rank
731
Country Rank
23
University
Ranking Based On Selection:
11
Natural Sciences / Chemical Sciences
Polymer Science | Polymer Spectroscopy | Polyimides | Fluoropolymers | DFT calculatio
Polymer Science | Polymer Spectroscopy | Polyimides | Fluoropolymers | DFT calculatio
H-Index Metrics
-
H-Index66
-
i10 Index251
-
Citation Counts14,017
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* Total H Index Rankings
Rankings
44,226
World Rank
737
Country Rank
24
University
Ranking Based On Selection:
12
* Total H Index Rankings
Rankings
51,726
World Rank
887
Country Rank
29
University
Ranking Based On Selection:
13
* Total H Index Rankings
Rankings
54,311
World Rank
963
Country Rank
33
University
Ranking Based On Selection:
14
* Total H Index Rankings
Rankings
58,379
World Rank
1,055
Country Rank
36
University
Ranking Based On Selection:
15
* Total H Index Rankings
Rankings
58,626
World Rank
1,062
Country Rank
38
University
Ranking Based On Selection:
16
* Total H Index Rankings
Rankings
58,733
World Rank
1,069
Country Rank
39
University
Ranking Based On Selection:
17
* Total H Index Rankings
Rankings
62,953
World Rank
1,149
Country Rank
42
University
Ranking Based On Selection:
18
* Total H Index Rankings
Rankings
77,857
World Rank
1,457
Country Rank
47
University
Ranking Based On Selection:
19
* Total H Index Rankings
Rankings
81,793
World Rank
1,543
Country Rank
52
University
Ranking Based On Selection:
20
* Total H Index Rankings
Rankings
85,317
World Rank
1,618
Country Rank
53
University
Ranking Based On Selection:
21
* Total H Index Rankings
Rankings
85,366
World Rank
1,619
Country Rank
54
University
Ranking Based On Selection:
22
* Total H Index Rankings
Rankings
96,984
World Rank
1,903
Country Rank
66
University
Ranking Based On Selection:
23
* Total H Index Rankings
Rankings
97,224
World Rank
1,909
Country Rank
67
University
Ranking Based On Selection:
24
* Total H Index Rankings
Rankings
105,693
World Rank
2,081
Country Rank
72
University
Ranking Based On Selection:
25
Natural Sciences / Physics
optical imaging | color | holography | multispectral imaging | pathology image analysi
optical imaging | color | holography | multispectral imaging | pathology image analysi
H-Index Metrics
-
H-Index48
-
i10 Index154
-
Citation Counts9,776
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