Subject Rankings

Japan Subject Rankings 2025

AD Scientific Index (Alper-Doger Scientific Index) offers the broadest spectrum of branches, providing analysis in 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses can be based on indicators such as the H-index, i10-index, and citation count, as well as their values from the last 6 years. As of Nov 21, 2024, rankings are according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in beta. This is due to the exclusion of (873.864) scientists categorized under 'others,' whose profiles cannot yet be determined, edited, or classified. As these fields are updated, the rankings will adjust accordingly. Please keep this in mind. See Also: [University Subject Rankings]

* Total H IndexRankings
Ranking Based On Selection :1
Akira Fujishima
Photocatalysis
Boron-doped diamond electrode
Metrics
H-Index
i10 Index
Citation Counts
153
855
169,153
* Total H IndexRankings
Ranking Based On Selection :2
Susumu Kitagawa
Chemistry of Coordination Space
Porous Coordination Polymers
Metal-Organic Frameworks
Metrics
H-Index
i10 Index
Citation Counts
142
660
97,908
* Total H IndexRankings
Ranking Based On Selection :3
Ryoji Noyori
asymmetric synthesis
catalysis
organic chemistry
organic synthesis
organometallic chemistry
Metrics
H-Index
i10 Index
Citation Counts
139
493
89,350
* Total H IndexRankings
Ranking Based On Selection :4
Seiji Shinkai
Molecular Machine
Supramolecular Chemistry
Self-assembly
Molecular Recognition
Polymer
Metrics
H-Index
i10 Index
Citation Counts
124
898
70,540
* Total H IndexRankings
Ranking Based On Selection :5
Hisashi Yamamoto
Organic Synthesis
Catalysis
Organometallic
Total synthesis
Metrics
H-Index
i10 Index
Citation Counts
121
674
56,229
* Total H IndexRankings
Ranking Based On Selection :6
Hiroshi Imahori
Artificial photosynthesis
Solar energy conversion
Solar cells
Photochemistry
Materials chemistry
Metrics
H-Index
i10 Index
Citation Counts
97
374
34,447
* Total H IndexRankings
Ranking Based On Selection :7
Kazuhiko Maeda
Artificial photosynthesis
CO2 fixation
Heterogeneous photocatalysis
Solar energy conversion
Metrics
H-Index
i10 Index
Citation Counts
96
255
56,117
* Total H IndexRankings
Ranking Based On Selection :8
Eiji Yashima
Polymer and supramolecular chemistry and chiral materials
Metrics
H-Index
i10 Index
Citation Counts
95
335
31,079
* Total H IndexRankings
Ranking Based On Selection :9
Shinichi Komaba
Electrochemstry
Li/Na/K/Rb-ion batteries
Biofuel cells
Ion sensors
Metrics
H-Index
i10 Index
Citation Counts
90
250
43,332
* Total H IndexRankings
Ranking Based On Selection :10
Kazuaki Ishihara
chemistry
organic chemistry
catalysis
asymmetric catalysis
iodine
Metrics
H-Index
i10 Index
Citation Counts
90
325
27,413
* Total H IndexRankings
Ranking Based On Selection :11
Bunsho Ohtani
photocatalysis
anisotropic particles
Metrics
H-Index
i10 Index
Citation Counts
89
308
28,873
* Total H IndexRankings
Ranking Based On Selection :12
Atsushi Takahara
Polymer Science
Metrics
H-Index
i10 Index
Citation Counts
87
474
30,566
* Total H IndexRankings
Ranking Based On Selection :13
Mitsuo Sawamoto
polymer chemistry
Metrics
H-Index
i10 Index
Citation Counts
87
333
34,927
* Total H IndexRankings
Ranking Based On Selection :14
Hiroshi Kitagawa
Chemistry
Metrics
H-Index
i10 Index
Citation Counts
86
343
27,769
* Total H IndexRankings
Ranking Based On Selection :15
Hiroshi Sugiyama
Department of Chemistry
Metrics
H-Index
i10 Index
Citation Counts
86
515
30,776
* Total H IndexRankings
Ranking Based On Selection :16
中西和樹
porous materials
sol-gel
silica
hplc
catalyst
Metrics
H-Index
i10 Index
Citation Counts
84
309
29,222
* Total H IndexRankings
Ranking Based On Selection :17
Donald Tryk
Electrochemistry
Photocatalysis
Photoelectrochemistry
Fuel cells
Metrics
H-Index
i10 Index
Citation Counts
84
229
41,560
* Total H IndexRankings
Ranking Based On Selection :18
Shu Seki
Polymer Materials
Radiation Chemistry
Photochemistry
Conductivity
Functional Materials ...
Metrics
H-Index
i10 Index
Citation Counts
83
374
28,519
* Total H IndexRankings
Ranking Based On Selection :19
Shigeki Matsunaga
Asymmetric Catalysis
C-H Functionalization
Metrics
H-Index
i10 Index
Citation Counts
82
175
18,190
* Total H IndexRankings
Ranking Based On Selection :21
Itaru Hamachi
Chemical Biology/Supramolecular Chemistry
Metrics
H-Index
i10 Index
Citation Counts
80
239
20,828
* Total H IndexRankings
Ranking Based On Selection :22
Masahiro Goto
Chemistry
Biochemical Engineering
Medical Engineering
Metrics
H-Index
i10 Index
Citation Counts
80
511
27,230
* Total H IndexRankings
Ranking Based On Selection :23
Tingli Ma
photochemistry
solar cell
battery
Metrics
H-Index
i10 Index
Citation Counts
79
294
23,682
* Total H IndexRankings
Ranking Based On Selection :24
Yoshihiko Kanemitsu
Luminescence
Optical Spectroscopy
Optoelectronics
Photovoltaics
Nanoscience
Metrics
H-Index
i10 Index
Citation Counts
79
360
24,935
* Total H IndexRankings
Ranking Based On Selection :25
Luis K Ono
Catalysis
Nanoparticles
Solar Cell
Organic Electronics
Surface Science
Metrics
H-Index
i10 Index
Citation Counts
78
149
23,923
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Akira Fujishima
Metrics
H-Index
i10-Index
Citation Counts
153
855
169,153
Photocatalysis
Boron-doped diamond electrode
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Susumu Kitagawa
Metrics
H-Index
i10-Index
Citation Counts
142
660
97,908
Chemistry of Coordination Space
Porous Coordination Polymers
Metal-Organic Frameworks
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Ryoji Noyori
Metrics
H-Index
i10-Index
Citation Counts
139
493
89,350
asymmetric synthesis
catalysis
organic chemistry
organic synthesis
organometallic chemistry
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Seiji Shinkai
Metrics
H-Index
i10-Index
Citation Counts
124
898
70,540
Molecular Machine
Supramolecular Chemistry
Self-assembly
Molecular Recognition
Polymer
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Hisashi Yamamoto
Metrics
H-Index
i10-Index
Citation Counts
121
674
56,229
Organic Synthesis
Catalysis
Organometallic
Total synthesis
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Hiroshi Imahori
Metrics
H-Index
i10-Index
Citation Counts
97
374
34,447
Artificial photosynthesis
Solar energy conversion
Solar cells
Photochemistry
Materials chemistry
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Kazuhiko Maeda
Metrics
H-Index
i10-Index
Citation Counts
96
255
56,117
Artificial photosynthesis
CO2 fixation
Heterogeneous photocatalysis
Solar energy conversion
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Eiji Yashima
Metrics
H-Index
i10-Index
Citation Counts
95
335
31,079
Polymer and supramolecular chemistry and chiral materials
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Shinichi Komaba
Metrics
H-Index
i10-Index
Citation Counts
90
250
43,332
Electrochemstry
Li/Na/K/Rb-ion batteries
Biofuel cells
Ion sensors
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Kazuaki Ishihara
Metrics
H-Index
i10-Index
Citation Counts
90
325
27,413
chemistry
organic chemistry
catalysis
asymmetric catalysis
iodine
* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Bunsho Ohtani
Metrics
H-Index
i10-Index
Citation Counts
89
308
28,873
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Atsushi Takahara
Metrics
H-Index
i10-Index
Citation Counts
87
474
30,566
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Mitsuo Sawamoto
Metrics
H-Index
i10-Index
Citation Counts
87
333
34,927
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Hiroshi Kitagawa
Metrics
H-Index
i10-Index
Citation Counts
86
343
27,769
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Hiroshi Sugiyama
Metrics
H-Index
i10-Index
Citation Counts
86
515
30,776
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
中西和樹
Metrics
H-Index
i10-Index
Citation Counts
84
309
29,222
porous materials
sol-gel
silica
hplc
catalyst
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Donald Tryk
Metrics
H-Index
i10-Index
Citation Counts
84
229
41,560
Electrochemistry
Photocatalysis
Photoelectrochemistry
Fuel cells
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Shu Seki
Metrics
H-Index
i10-Index
Citation Counts
83
374
28,519
Polymer Materials
Radiation Chemistry
Photochemistry
Conductivity
Functional Materials ...
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Shigeki Matsunaga
Metrics
H-Index
i10-Index
Citation Counts
82
175
18,190
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Kenichi Shimizu
Metrics
H-Index
i10-Index
Citation Counts
81
306
20,889
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Itaru Hamachi
Metrics
H-Index
i10-Index
Citation Counts
80
239
20,828
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Masahiro Goto
Metrics
H-Index
i10-Index
Citation Counts
80
511
27,230
Chemistry
Biochemical Engineering
Medical Engineering
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Tingli Ma
Metrics
H-Index
i10-Index
Citation Counts
79
294
23,682
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Yoshihiko Kanemitsu
Metrics
H-Index
i10-Index
Citation Counts
79
360
24,935
Luminescence
Optical Spectroscopy
Optoelectronics
Photovoltaics
Nanoscience
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Luis K Ono
Metrics
H-Index
i10-Index
Citation Counts
78
149
23,923
Catalysis
Nanoparticles
Solar Cell
Organic Electronics
Surface Science