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Ejima, Hirotaka

Ejima, Hirotaka

The University of Tokyo, Japan

2025 Rank: 96,503

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Chemistry

SubField 1:

Nanoscience & Nanotechnology

SubField 2:

Polymers

Rank in SubField 1: 3,827 out of 156,020 Researchers

Data For The Year: 2025
Metrics Self-Citations Excluded All
Rank Based on Composite Score96,503101,011
Total Cites879958
H-index1314
Hm-index45
Number of Single Authored Papers11
Total Cites to Single Authored Papers00
Number of Single+First Authored Papers1616
Total Cites to Single+First Authored Papers334355
Number of Single+First+Last Authored Papers3333
Total Cites to Single+First+Last Authored Papers444475
Composite Score22
Number of Distinct Citing Papers691721
Ratio of Total Citations to Distinct Citing Papers 1.27 1.33
Self-Citation Percentage
8.25%
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Ejima, Hirotaka

Ejima, Hirotaka

The University of Tokyo, Japan

2024 Rank: 92,117

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Chemistry

SubField 1:

Nanoscience & Nanotechnology

SubField 2:

Polymers

Rank in SubField 1: 3,345 out of 135,958 Researchers

Data For The Year: 2024
Metrics Self-Citations Excluded All
Rank Based on Composite Score92,11795,159
Total Cites832909
H-index1314
Hm-index55
Number of Single Authored Papers11
Total Cites to Single Authored Papers00
Number of Single+First Authored Papers1616
Total Cites to Single+First Authored Papers289313
Number of Single+First+Last Authored Papers3131
Total Cites to Single+First+Last Authored Papers379412
Composite Score22
Number of Distinct Citing Papers641675
Ratio of Total Citations to Distinct Citing Papers 1.30 1.35
Self-Citation Percentage
8.47%
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Ejima, Hirotaka

Ejima, Hirotaka

The University of Tokyo, Japan

2023 Rank: 81,418

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Chemistry

SubField 1:

Nanoscience & Nanotechnology

SubField 2:

Polymers

Rank in SubField 1: 2,739 out of 117,692 Researchers

Data For The Year: 2023
Metrics Self-Citations Excluded All
Rank Based on Composite Score81,41888,136
Total Cites9141,016
H-index1414
Hm-index55
Number of Single Authored Papers11
Total Cites to Single Authored Papers00
Number of Single+First Authored Papers1616
Total Cites to Single+First Authored Papers300329
Number of Single+First+Last Authored Papers3030
Total Cites to Single+First+Last Authored Papers383423
Composite Score22
Number of Distinct Citing Papers659692
Ratio of Total Citations to Distinct Citing Papers 1.39 1.47
Self-Citation Percentage
10.04%
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Ejima, Hirotaka

Ejima, Hirotaka

The University of Tokyo, Japan

2022 Rank: 81,931

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Chemistry

SubField 1:

Nanoscience & Nanotechnology

SubField 2:

Polymers

Rank in SubField 1: 2,508 out of 103,235 Researchers

Data For The Year: 2022
Metrics Self-Citations Excluded All
Rank Based on Composite Score81,93193,074
Total Cites917970
H-index1414
Hm-index44
Number of Single Authored Papers00
Total Cites to Single Authored Papers00
Number of Single+First Authored Papers1515
Total Cites to Single+First Authored Papers314333
Number of Single+First+Last Authored Papers2323
Total Cites to Single+First+Last Authored Papers377400
Composite Score22
Number of Distinct Citing Papers613634
Ratio of Total Citations to Distinct Citing Papers 1.50 1.53
Self-Citation Percentage
5.46%
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