Okumura, Hajime
National Institute of Advanced Industrial Science and Technology,
Japan
2025 Rank: 271,217
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Physics & Astronomy
SubField 1:
Applied Physics
SubField 2:
Materials
Rank in SubField 1: 5,368 out of 314,640 Researchers
Data For The Year: 2025
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 271,217 | 311,039 |
| Total Cites | 205 | 211 |
| H-index | 6 | 6 |
| Hm-index | 3 | 3 |
| Number of Single Authored Papers | 3 | 3 |
| Total Cites to Single Authored Papers | 25 | 25 |
| Number of Single+First Authored Papers | 27 | 27 |
| Total Cites to Single+First Authored Papers | 36 | 36 |
| Number of Single+First+Last Authored Papers | 176 | 176 |
| Total Cites to Single+First+Last Authored Papers | 118 | 121 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 181 | 187 |
| Ratio of Total Citations to Distinct Citing Papers | 1.13 | 1.13 |
| Self-Citation Percentage |
2.84%
|
|
Okumura, Hajime
National Institute of Advanced Industrial Science and Technology,
Japan
2024 Rank: 263,982
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Physics & Astronomy
SubField 1:
Applied Physics
SubField 2:
Materials
Rank in SubField 1: 5,386 out of 304,738 Researchers
Data For The Year: 2024
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 263,982 | 301,948 |
| Total Cites | 211 | 220 |
| H-index | 5 | 5 |
| Hm-index | 3 | 3 |
| Number of Single Authored Papers | 3 | 3 |
| Total Cites to Single Authored Papers | 19 | 19 |
| Number of Single+First Authored Papers | 26 | 26 |
| Total Cites to Single+First Authored Papers | 31 | 31 |
| Number of Single+First+Last Authored Papers | 175 | 175 |
| Total Cites to Single+First+Last Authored Papers | 130 | 136 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 193 | 200 |
| Ratio of Total Citations to Distinct Citing Papers | 1.09 | 1.10 |
| Self-Citation Percentage |
4.09%
|
|
Okumura, Hajime
University of Tsukuba,
Japan
2023 Rank: 279,334
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Physics & Astronomy
SubField 1:
Applied Physics
SubField 2:
Materials
Rank in SubField 1: 5,865 out of 295,432 Researchers
Data For The Year: 2023
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 279,334 | 326,105 |
| Total Cites | 219 | 227 |
| H-index | 6 | 6 |
| Hm-index | 2 | 2 |
| Number of Single Authored Papers | 3 | 3 |
| Total Cites to Single Authored Papers | 15 | 15 |
| Number of Single+First Authored Papers | 26 | 26 |
| Total Cites to Single+First Authored Papers | 32 | 32 |
| Number of Single+First+Last Authored Papers | 179 | 179 |
| Total Cites to Single+First+Last Authored Papers | 140 | 143 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 179 | 186 |
| Ratio of Total Citations to Distinct Citing Papers | 1.22 | 1.22 |
| Self-Citation Percentage |
3.52%
|
|
Okumura, Hajime
National Institute of Advanced Industrial Science and Technology,
Japan
2021 Rank: 222,901
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Physics & Astronomy
SubField 1:
Applied Physics
SubField 2:
Materials
Rank in SubField 1: 5,068 out of 269,833 Researchers
Data For The Year: 2021
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 222,901 | 223,741 |
| Total Cites | 331 | 355 |
| H-index | 6 | 7 |
| Hm-index | 4 | 4 |
| Number of Single Authored Papers | 3 | 3 |
| Total Cites to Single Authored Papers | 27 | 27 |
| Number of Single+First Authored Papers | 27 | 27 |
| Total Cites to Single+First Authored Papers | 49 | 49 |
| Number of Single+First+Last Authored Papers | 176 | 176 |
| Total Cites to Single+First+Last Authored Papers | 203 | 218 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 294 | 310 |
| Ratio of Total Citations to Distinct Citing Papers | 1.13 | 1.15 |
| Self-Citation Percentage |
6.76%
|
|
Okumura, Hajime
National Institute of Advanced Industrial Science and Technology,
Japan
2020 Rank: 123,032
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Physics & Astronomy
SubField 1:
Applied Physics
SubField 2:
Materials
Rank in SubField 1: 2,853 out of 224,856 Researchers
Data For The Year: 2020
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 123,032 | 138,076 |
| Total Cites | 337 | 356 |
| H-index | 6 | 6 |
| Hm-index | 4 | 4 |
| Number of Single Authored Papers | 3 | 3 |
| Total Cites to Single Authored Papers | 39 | 39 |
| Number of Single+First Authored Papers | 30 | 30 |
| Total Cites to Single+First Authored Papers | 58 | 58 |
| Number of Single+First+Last Authored Papers | 183 | 183 |
| Total Cites to Single+First+Last Authored Papers | 202 | 215 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 290 | 304 |
| Ratio of Total Citations to Distinct Citing Papers | 1.16 | 1.17 |
| Self-Citation Percentage |
5.34%
|
|
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