University, Subject, Country, Region, World
Japan 926 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 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 6 years. As of Jan 30, 2025, 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 (873.690) 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 IndexRankings
Ranking Based On Selection: 26
Electron Microscopy
defects in semiconductors
Metrics
H-Index
i10 Index
Citation Counts
70
315
20,312
* Total H IndexRankings
Ranking Based On Selection: 27
Materials Science
Physical Metallurgy
Microstructure
Phase Transformations
Steel
Metrics
H-Index
i10 Index
Citation Counts
69
205
16,839
* Total H IndexRankings
Ranking Based On Selection: 28
Functional Materials
Gas Sensors
Air Batteries
Electrochemical Catalysts
Mixed Conductor
Metrics
H-Index
i10 Index
Citation Counts
68
198
16,981
* Total H IndexRankings
Ranking Based On Selection: 29
Liquid Crystal
Polymer
Optical Material
Material Engineering
Metrics
H-Index
i10 Index
Citation Counts
68
346
19,710
* Total H IndexRankings
Ranking Based On Selection: 30
エネルギー材料
Metrics
H-Index
i10 Index
Citation Counts
66
258
17,086
* Total H IndexRankings
Ranking Based On Selection: 31
固体化学、固体物理、材料工学
Metrics
H-Index
i10 Index
Citation Counts
65
226
19,445
* Total H IndexRankings
Ranking Based On Selection: 32
Surface Science
Catalysis Synchrotron Radiation X-ray Optics XAFS
PEEM XPS
XFEL
Metrics
H-Index
i10 Index
Citation Counts
65
288
18,071
* Total H IndexRankings
Ranking Based On Selection: 33
Biomaterials
Anisotropic bone microstructure
bone cells
intermetallic compounds
Metrics
H-Index
i10 Index
Citation Counts
64
307
16,983
* Total H IndexRankings
Ranking Based On Selection: 34
Metallurgy
Materials Science
Welding & Joining
Metrics
H-Index
i10 Index
Citation Counts
64
189
17,538
* Total H IndexRankings
Ranking Based On Selection: 35
mineral physics
materials science
Metrics
H-Index
i10 Index
Citation Counts
64
317
18,635
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* Total H IndexRankings
Ranking Based On Selection: 36
エネルギー科学，材料科学，電気化学，固体物理，熱力学，環境科学，人工知能
Metrics
H-Index
i10 Index
Citation Counts
64
198
15,758
* Total H IndexRankings
Ranking Based On Selection: 37
Metal organic framework
Metrics
H-Index
i10 Index
Citation Counts
63
118
18,117
* Total H IndexRankings
Ranking Based On Selection: 38
Theoretical Chemistry
Quantum Chemistry
Physical Chemistry
Molecular design
Quantum dynamics
Metrics
H-Index
i10 Index
Citation Counts
63
239
14,849
* Total H IndexRankings
Ranking Based On Selection: 39
Materials Science
Metrics
H-Index
i10 Index
Citation Counts
62
201
15,088
* Total H IndexRankings
Ranking Based On Selection: 40
材料物性
Metrics
H-Index
i10 Index
Citation Counts
62
255
13,779
* Total H IndexRankings
Ranking Based On Selection: 41
materials science
photocatalysis
solar energy conversion
Metrics
H-Index
i10 Index
Citation Counts
61
157
13,802
* Total H IndexRankings
Ranking Based On Selection: 42
Computational materials science
first principles calculations
semiconductors
defects
Metrics
H-Index
i10 Index
Citation Counts
60
149
19,902
* Total H IndexRankings
Ranking Based On Selection: 43
Environmental Materials
Metrics
H-Index
i10 Index
Citation Counts
59
355
14,750
* Total H IndexRankings
Ranking Based On Selection: 44
π-conjugated materials
π-conjugated polymers
semiconducting polymers
organic electronics
Metrics
H-Index
i10 Index
Citation Counts
59
148
14,529
* Total H IndexRankings
Ranking Based On Selection: 45
Semiconductor Materials and Devices
Metrics
H-Index
i10 Index
Citation Counts
59
214
14,888
* Total H IndexRankings
Ranking Based On Selection: 46
Materials Science
Organic Devices
Organic Semiconductors
Synthetic Chemistry
Metrics
H-Index
i10 Index
Citation Counts
58
131
13,419
* Total H IndexRankings
Ranking Based On Selection: 47
Materials Science
Corrosion
Electrochemistry
Metrics
H-Index
i10 Index
Citation Counts
58
176
11,138
* Total H IndexRankings
Ranking Based On Selection: 48
Metal forming
Hot stamping
Joining
High strength steel sheet
Plate forging
Metrics
H-Index
i10 Index
Citation Counts
58
201
12,984
* Total H IndexRankings
Ranking Based On Selection: 49
CuInSe2 and the related photovoltatic materials and devices
Metrics
H-Index
i10 Index
Citation Counts
58
221
11,121
* Total H IndexRankings
Ranking Based On Selection: 50
Materials Science and Engineering
Metrics
H-Index
i10 Index
Citation Counts
57
155
14,204
Takashi Sekiguchi
University of Tsukuba
Tsukuba, Japan
Metrics
H-Index
i10-Index
Citation Counts
70
315
20,312
Electron Microscopy
defects in semiconductors
Tadashi Furuhara
Tohoku University
Sendai, Japan
Metrics
H-Index
i10-Index
Citation Counts
69
205
16,839
Materials Science
Physical Metallurgy
Microstructure
Phase Transformations
Steel
Kengo Shimanoe
Kyushu University
Fukuoka, Japan
Metrics
H-Index
i10-Index
Citation Counts
68
198
16,981
Functional Materials
Gas Sensors
Air Batteries
Electrochemical Catalysts
Mixed Conductor
Junji Watanabe (渡邊順次)
Metrics
H-Index
i10-Index
Citation Counts
68
346
19,710
Liquid Crystal
Polymer
Optical Material
Material Engineering
Naotoshi Nakashima
Kyushu University
Fukuoka, Japan
Metrics
H-Index
i10-Index
Citation Counts
66
258
17,086
Masaki Azuma
Metrics
H-Index
i10-Index
Citation Counts
65
226
19,445
Kiyotaka Asakura
Hokkaido University
Sapporo, Japan
Metrics
H-Index
i10-Index
Citation Counts
65
288
18,071
Surface Science
Catalysis Synchrotron Radiation X-ray Optics XAFS
PEEM XPS
XFEL
Takayoshi Nakano
Osaka University
Suita, Japan
Metrics
H-Index
i10-Index
Citation Counts
64
307
16,983
Biomaterials
Anisotropic bone microstructure
bone cells
intermetallic compounds
Hiroyuki Kokawa
Tohoku University
Sendai, Japan
Metrics
H-Index
i10-Index
Citation Counts
64
189
17,538
Metallurgy
Materials Science
Welding & Joining
mineral physics
materials science
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Junichiro Mizusaki
Tohoku University
Sendai, Japan
Metrics
H-Index
i10-Index
Citation Counts
64
198
15,758
エネルギー科学，材料科学，電気化学，固体物理，熱力学，環境科学，人工知能
Ryotaro Matsuda
Nagoya University
Nagoya, Japan
Metrics
H-Index
i10-Index
Citation Counts
63
118
18,117
Metal organic framework
Masayoshi Nakano
Osaka University
Suita, Japan
Metrics
H-Index
i10-Index
Citation Counts
63
239
14,849
Theoretical Chemistry
Quantum Chemistry
Physical Chemistry
Molecular design
Quantum dynamics
Seiji Mitani
Metrics
H-Index
i10-Index
Citation Counts
62
201
15,088
Shin Takeuchi
Tokyo University of Science
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
62
255
13,779
Masahiro Miyauchi
Metrics
H-Index
i10-Index
Citation Counts
61
157
13,802
materials science
photocatalysis
solar energy conversion
Fumiyasu Oba
Metrics
H-Index
i10-Index
Citation Counts
60
149
19,902
Computational materials science
first principles calculations
semiconductors
defects
Keiko Sasaki
Kyushu University
Fukuoka, Japan
Metrics
H-Index
i10-Index
Citation Counts
59
355
14,750
Environmental Materials
Itaru Osaka
Hiroshima University
Higashihiroshima, Japan
Metrics
H-Index
i10-Index
Citation Counts
59
148
14,529
π-conjugated materials
π-conjugated polymers
semiconducting polymers
organic electronics
Yasuo Koide
Metrics
H-Index
i10-Index
Citation Counts
59
214
14,888
Semiconductor Materials and Devices
Hisahiro Sasabe
Yamagata University
Yamagata, Japan
Metrics
H-Index
i10-Index
Citation Counts
58
131
13,419
Materials Science
Organic Devices
Organic Semiconductors
Synthetic Chemistry
Eiji Akiyama
Tohoku University
Sendai, Japan
Metrics
H-Index
i10-Index
Citation Counts
58
176
11,138
Materials Science
Corrosion
Electrochemistry
Ken Ichiro Mori
Toyohashi University of Technology
Toyohashi, Japan
Metrics
H-Index
i10-Index
Citation Counts
58
201
12,984
Metal forming
Hot stamping
Joining
High strength steel sheet
Plate forging
CuInSe2 and the related photovoltatic materials and devices
Toshihiro Omori
Tohoku University
Sendai, Japan
Metrics
H-Index
i10-Index
Citation Counts
57
155
14,204
Materials Science and Engineering