Citation Rankings
Highly Cited Researchers
Japan Highly Cited Researchers Citation Natural Sciences / Chemical Sciences in Japan Rankings 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :1
Theoretical Chemistry
Quantum Chemistry
Photochemistry
Catalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
220,092
80,076
0.364
* Total Citation Counts Rankings
Ranking Based On Selection :2
Photocatalysis
Boron-doped diamond electrode
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
169,153
47,758
0.282
* Total Citation Counts Rankings
Ranking Based On Selection :3
Chemistry of Coordination Space
Porous Coordination Polymers
Metal-Organic Frameworks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97,908
35,128
0.359
* Total Citation Counts Rankings
Ranking Based On Selection :4
asymmetric synthesis
catalysis
organic chemistry
organic synthesis
organometallic chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
89,350
11,370
0.127
* Total Citation Counts Rankings
Ranking Based On Selection :5
theoretical chemistry
catalytic chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
88,269
41,334
0.468
* Total Citation Counts Rankings
Ranking Based On Selection :6
Molecular Machine
Supramolecular Chemistry
Self-assembly
Molecular Recognition
Polymer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,540
7,735
0.110
* Total Citation Counts Rankings
Ranking Based On Selection :7
Organic Synthesis
Catalysis
Organometallic
Total synthesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,229
7,877
0.140
* Total Citation Counts Rankings
Ranking Based On Selection :8
Artificial photosynthesis
CO2 fixation
Heterogeneous photocatalysis
Solar energy conversion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,117
27,220
0.485
* Total Citation Counts Rankings
Ranking Based On Selection :9
Crystallography
Powder diffraction
Structure analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,767
25,356
0.455
* Total Citation Counts Rankings
Ranking Based On Selection :10
Chemistry
Quantum Chemistry
Physical Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,276
34,978
0.696
* Total Citation Counts Rankings
Ranking Based On Selection :11
Electrochemstry
Li/Na/K/Rb-ion batteries
Biofuel cells
Ion sensors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,332
25,190
0.581
* Total Citation Counts Rankings
Ranking Based On Selection :12
Electrochemistry
Photocatalysis
Photoelectrochemistry
Fuel cells
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,560
9,938
0.239
* Total Citation Counts Rankings
Ranking Based On Selection :13
polymer chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,927
6,605
0.189
* Total Citation Counts Rankings
Ranking Based On Selection :14
Artificial photosynthesis
Solar energy conversion
Solar cells
Photochemistry
Materials chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,447
7,425
0.216
* Total Citation Counts Rankings
Ranking Based On Selection :15
Organic Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,366
19,818
0.594
* Total Citation Counts Rankings
Ranking Based On Selection :16
Polymer and supramolecular chemistry and chiral materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,079
8,578
0.276
* Total Citation Counts Rankings
Ranking Based On Selection :17
Department of Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,776
10,775
0.350
* Total Citation Counts Rankings
Ranking Based On Selection :18
Polymer Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,566
11,027
0.361
* Total Citation Counts Rankings
Ranking Based On Selection :19
porous materials
sol-gel
silica
hplc
catalyst
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,222
7,924
0.271
* Total Citation Counts Rankings
Ranking Based On Selection :20
Theoretical Chemistry
Computational Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,916
6,591
0.228
* Total Citation Counts Rankings
Ranking Based On Selection :21
photocatalysis
anisotropic particles
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,873
10,628
0.368
* Total Citation Counts Rankings
Ranking Based On Selection :22
Polymer Materials
Radiation Chemistry
Photochemistry
Conductivity
Functional Materials ...
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,519
13,025
0.457
* Total Citation Counts Rankings
Ranking Based On Selection :23
Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,769
15,984
0.576
* Total Citation Counts Rankings
Ranking Based On Selection :24
chemistry
organic chemistry
catalysis
asymmetric catalysis
iodine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,413
7,568
0.276
* Total Citation Counts Rankings
Ranking Based On Selection :25
Chemistry
Biochemical Engineering
Medical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,230
10,538
0.387
* Total Citation Counts Rankings
Rankings
647
8
1
Ranking Based On Selection: 1
Masahiro Ehara
Institute for Molecular Science
Okazaki, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
220,092
80,076
0.364
Theoretical Chemistry
Quantum Chemistry
Photochemistry
Catalysis
* Total Citation Counts Rankings
Rankings
1,131
12
1
Ranking Based On Selection: 2
Akira Fujishima
Tokyo University of Science
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
169,153
47,758
0.282
Photocatalysis
Boron-doped diamond electrode
* Total Citation Counts Rankings
Rankings
3,247
35
6
Ranking Based On Selection: 3
Susumu Kitagawa
Kyoto University
Kyoto, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97,908
35,128
0.359
Chemistry of Coordination Space
Porous Coordination Polymers
Metal-Organic Frameworks
* Total Citation Counts Rankings
Rankings
3,854
44
2
Ranking Based On Selection: 4
Ryoji Noyori
Nagoya University
Nagoya, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
89,350
11,370
0.127
asymmetric synthesis
catalysis
organic chemistry
organic synthesis
organometallic chemistry
* Total Citation Counts Rankings
Rankings
3,942
46
1
Ranking Based On Selection: 5
Jun Ya Hasegawa
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
88,269
41,334
0.468
theoretical chemistry
catalytic chemistry
* Total Citation Counts Rankings
Rankings
5,719
67
2
Ranking Based On Selection: 6
Seiji Shinkai
Kyushu University
Fukuoka, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,540
7,735
0.110
Molecular Machine
Supramolecular Chemistry
Self-assembly
Molecular Recognition
Polymer
* Total Citation Counts Rankings
Rankings
8,279
97
1
Ranking Based On Selection: 7
Hisashi Yamamoto
Chubu University
Kasugai, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,229
7,877
0.140
Organic Synthesis
Catalysis
Organometallic
Total synthesis
* Total Citation Counts Rankings
Rankings
8,312
98
5
Ranking Based On Selection: 8
Kazuhiko Maeda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,117
27,220
0.485
Artificial photosynthesis
CO2 fixation
Heterogeneous photocatalysis
Solar energy conversion
* Total Citation Counts Rankings
Rankings
8,407
101
8
Ranking Based On Selection: 9
Fujio Izumi
Kyoto University
Kyoto, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,767
25,356
0.455
Crystallography
Powder diffraction
Structure analysis
* Total Citation Counts Rankings
Rankings
9,941
118
3
Ranking Based On Selection: 10
Masahiko Hada
Tokyo Metropolitan University
Hachioji, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,276
34,978
0.696
Chemistry
Quantum Chemistry
Physical Chemistry
* Total Citation Counts Rankings
Rankings
12,569
155
2
Ranking Based On Selection: 11
Shinichi Komaba
Tokyo University of Science
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,332
25,190
0.581
Electrochemstry
Li/Na/K/Rb-ion batteries
Biofuel cells
Ion sensors
* Total Citation Counts Rankings
Rankings
13,425
168
1
Ranking Based On Selection: 12
Donald Tryk
University of Yamanashi
Kofu, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,560
9,938
0.239
Electrochemistry
Photocatalysis
Photoelectrochemistry
Fuel cells
* Total Citation Counts Rankings
Rankings
17,695
211
3
Ranking Based On Selection: 13
Mitsuo Sawamoto
Chubu University
Kasugai, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,927
6,605
0.189
* Total Citation Counts Rankings
Rankings
18,060
220
18
Ranking Based On Selection: 14
Hiroshi Imahori
Kyoto University
Kyoto, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,447
7,425
0.216
Artificial photosynthesis
Solar energy conversion
Solar cells
Photochemistry
Materials chemistry
* Total Citation Counts Rankings
Rankings
18,949
245
16
Ranking Based On Selection: 15
Hua Zhang
Nagoya University
Nagoya, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,366
19,818
0.594
* Total Citation Counts Rankings
Rankings
21,215
276
20
Ranking Based On Selection: 16
Eiji Yashima
Nagoya University
Nagoya, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,079
8,578
0.276
Polymer and supramolecular chemistry and chiral materials
* Total Citation Counts Rankings
Rankings
21,502
280
23
Ranking Based On Selection: 17
Hiroshi Sugiyama
Kyoto University
Kyoto, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,776
10,775
0.350
* Total Citation Counts Rankings
Rankings
21,714
284
10
Ranking Based On Selection: 18
Atsushi Takahara
Kyushu University
Fukuoka, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,566
11,027
0.361
* Total Citation Counts Rankings
Rankings
23,365
307
21
Ranking Based On Selection: 19
中西和樹
Nagoya University
Nagoya, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,222
7,924
0.271
porous materials
sol-gel
silica
hplc
catalyst
* Total Citation Counts Rankings
Rankings
23,738
315
26
Ranking Based On Selection: 20
Kimihiko Hirao|k hirao
Kyoto University
Kyoto, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,916
6,591
0.228
Theoretical Chemistry
Computational Chemistry
* Total Citation Counts Rankings
Rankings
23,789
316
8
Ranking Based On Selection: 21
Bunsho Ohtani
Hokkaido University
Sapporo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,873
10,628
0.368
photocatalysis
anisotropic particles
* Total Citation Counts Rankings
Rankings
24,253
325
29
Ranking Based On Selection: 22
Shu Seki
Kyoto University
Kyoto, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,519
13,025
0.457
Polymer Materials
Radiation Chemistry
Photochemistry
Conductivity
Functional Materials ...
* Total Citation Counts Rankings
Rankings
25,210
344
33
Ranking Based On Selection: 23
Hiroshi Kitagawa
Kyoto University
Kyoto, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,769
15,984
0.576
* Total Citation Counts Rankings
Rankings
25,677
356
22
Ranking Based On Selection: 24
Kazuaki Ishihara
Nagoya University
Nagoya, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,413
7,568
0.276
chemistry
organic chemistry
catalysis
asymmetric catalysis
iodine
* Total Citation Counts Rankings
Rankings
25,937
359
13
Ranking Based On Selection: 25
Masahiro Goto
Kyushu University
Fukuoka, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,230
10,538
0.387
Chemistry
Biochemical Engineering
Medical Engineering