Koyama, Fumio
Tokyo Institute of Technology,
Japan
2024 Rank: 281,840
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Physics & Astronomy
SubField 1:
Optoelectronics & Photonics
SubField 2:
Applied Physics
Rank in SubField 1: 709 out of 120,816 Researchers
Data For The Year: 2024
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 281,840 | 204,460 |
| Total Cites | 202 | 249 |
| H-index | 5 | 6 |
| Hm-index | 2 | 3 |
| Number of Single Authored Papers | 44 | 44 |
| Total Cites to Single Authored Papers | 28 | 31 |
| Number of Single+First Authored Papers | 105 | 105 |
| Total Cites to Single+First Authored Papers | 39 | 44 |
| Number of Single+First+Last Authored Papers | 626 | 626 |
| Total Cites to Single+First+Last Authored Papers | 113 | 152 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 167 | 185 |
| Ratio of Total Citations to Distinct Citing Papers | 1.21 | 1.35 |
| Self-Citation Percentage |
18.88%
|
|
Koyama, Fumio
Tokyo Institute of Technology,
Japan
2023 Rank: 232,631
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Enabling & Strategic Technologies
SubField 1:
Optoelectronics & Photonics
SubField 2:
Applied Physics
Rank in SubField 1: 741 out of 123,678 Researchers
Data For The Year: 2023
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 232,631 | 133,591 |
| Total Cites | 220 | 335 |
| H-index | 5 | 7 |
| Hm-index | 3 | 4 |
| Number of Single Authored Papers | 43 | 43 |
| Total Cites to Single Authored Papers | 21 | 29 |
| Number of Single+First Authored Papers | 104 | 104 |
| Total Cites to Single+First Authored Papers | 48 | 58 |
| Number of Single+First+Last Authored Papers | 619 | 619 |
| Total Cites to Single+First+Last Authored Papers | 118 | 225 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 167 | 194 |
| Ratio of Total Citations to Distinct Citing Papers | 1.32 | 1.73 |
| Self-Citation Percentage |
34.33%
|
|
Koyama, Fumio
Tokyo Institute of Technology,
Japan
2022 Rank: 255,885
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Enabling & Strategic Technologies
SubField 1:
Optoelectronics & Photonics
SubField 2:
Applied Physics
Rank in SubField 1: 708 out of 115,726 Researchers
Data For The Year: 2022
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 255,885 | 90,194 |
| Total Cites | 183 | 367 |
| H-index | 4 | 7 |
| Hm-index | 2 | 4 |
| Number of Single Authored Papers | 40 | 40 |
| Total Cites to Single Authored Papers | 29 | 49 |
| Number of Single+First Authored Papers | 100 | 100 |
| Total Cites to Single+First Authored Papers | 53 | 76 |
| Number of Single+First+Last Authored Papers | 591 | 591 |
| Total Cites to Single+First+Last Authored Papers | 106 | 268 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 156 | 203 |
| Ratio of Total Citations to Distinct Citing Papers | 1.17 | 1.81 |
| Self-Citation Percentage |
50.14%
|
|
Koyama, Fumio
Tokyo Institute of Technology,
Japan
2021 Rank: 204,184
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Physics & Astronomy
SubField 1:
Optoelectronics & Photonics
SubField 2:
Applied Physics
Rank in SubField 1: 524 out of 108,280 Researchers
Data For The Year: 2021
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 204,184 | 154,541 |
| Total Cites | 269 | 353 |
| H-index | 6 | 7 |
| Hm-index | 3 | 5 |
| Number of Single Authored Papers | 35 | 35 |
| Total Cites to Single Authored Papers | 43 | 50 |
| Number of Single+First Authored Papers | 94 | 94 |
| Total Cites to Single+First Authored Papers | 75 | 84 |
| Number of Single+First+Last Authored Papers | 552 | 552 |
| Total Cites to Single+First+Last Authored Papers | 165 | 235 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 213 | 235 |
| Ratio of Total Citations to Distinct Citing Papers | 1.26 | 1.50 |
| Self-Citation Percentage |
23.80%
|
|
Koyama, Fumio
Tokyo Institute of Technology,
Japan
2020 Rank: 162,084
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Enabling & Strategic Technologies
SubField 1:
Optoelectronics & Photonics
SubField 2:
Applied Physics
Rank in SubField 1: 487 out of 99,488 Researchers
Data For The Year: 2020
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 162,084 | 141,464 |
| Total Cites | 222 | 303 |
| H-index | 6 | 6 |
| Hm-index | 3 | 4 |
| Number of Single Authored Papers | 33 | 33 |
| Total Cites to Single Authored Papers | 36 | 40 |
| Number of Single+First Authored Papers | 92 | 92 |
| Total Cites to Single+First Authored Papers | 72 | 77 |
| Number of Single+First+Last Authored Papers | 538 | 538 |
| Total Cites to Single+First+Last Authored Papers | 150 | 212 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 178 | 206 |
| Ratio of Total Citations to Distinct Citing Papers | 1.25 | 1.47 |
| Self-Citation Percentage |
26.73%
|
|
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