Koyama, Motomichi
Institute for Materials Research, Tohoku University,
Japan
2025 Rank: 43027
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Enabling & Strategic Technologies
SubField 1:
Materials
SubField 2:
Mining & Metallurgy
Rank in SubField 1: 869 out of 314399 Researchers
Data For The Year: 2025
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 43027 | 30028 |
| Total Cites | 854 | 1119 |
| H-index | 14 | 15 |
| Hm-index | 6 | 7 |
| Number of Single Authored Papers | 2 | 2 |
| Total Cites to Single Authored Papers | 5 | 9 |
| Number of Single+First Authored Papers | 100 | 100 |
| Total Cites to Single+First Authored Papers | 431 | 527 |
| Number of Single+First+Last Authored Papers | 109 | 109 |
| Total Cites to Single+First+Last Authored Papers | 436 | 537 |
| Composite Score | 2 | 3 |
| Number of Distinct Citing Papers | 599 | 658 |
| Ratio of Total Citations to Distinct Citing Papers | 1.43 | 1.70 |
| Self-Citation Percentage |
23.68%
|
|
Koyama, Motomichi
Tohoku University,
Japan
2024 Rank: 91859
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Enabling & Strategic Technologies
SubField 1:
Materials
SubField 2:
Mining & Metallurgy
Rank in SubField 1: 1900 out of 299561 Researchers
Data For The Year: 2024
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 91859 | 67929 |
| Total Cites | 689 | 803 |
| H-index | 12 | 12 |
| Hm-index | 5 | 6 |
| Number of Single Authored Papers | 2 | 2 |
| Total Cites to Single Authored Papers | 0 | 2 |
| Number of Single+First Authored Papers | 96 | 96 |
| Total Cites to Single+First Authored Papers | 359 | 394 |
| Number of Single+First+Last Authored Papers | 102 | 102 |
| Total Cites to Single+First+Last Authored Papers | 363 | 399 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 469 | 501 |
| Ratio of Total Citations to Distinct Citing Papers | 1.47 | 1.60 |
| Self-Citation Percentage |
14.20%
|
|
Koyama, Motomichi
Institute for Materials Research, Tohoku University,
Japan
2023 Rank: 77010
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Enabling & Strategic Technologies
SubField 1:
Materials
SubField 2:
Mining & Metallurgy
Rank in SubField 1: 1445 out of 281605 Researchers
Data For The Year: 2023
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 77010 | 50041 |
| Total Cites | 688 | 903 |
| H-index | 11 | 13 |
| Hm-index | 5 | 6 |
| Number of Single Authored Papers | 2 | 2 |
| Total Cites to Single Authored Papers | 1 | 3 |
| Number of Single+First Authored Papers | 95 | 95 |
| Total Cites to Single+First Authored Papers | 364 | 451 |
| Number of Single+First+Last Authored Papers | 101 | 101 |
| Total Cites to Single+First+Last Authored Papers | 368 | 461 |
| Composite Score | 2 | 3 |
| Number of Distinct Citing Papers | 468 | 513 |
| Ratio of Total Citations to Distinct Citing Papers | 1.47 | 1.76 |
| Self-Citation Percentage |
23.81%
|
|
Koyama, Motomichi
Institute for Materials Research, Tohoku University,
Japan
2022 Rank: 98585
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Enabling & Strategic Technologies
SubField 1:
Materials
SubField 2:
Mining & Metallurgy
Rank in SubField 1: 1688 out of 267149 Researchers
Data For The Year: 2022
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 98585 | 74587 |
| Total Cites | 581 | 833 |
| H-index | 12 | 13 |
| Hm-index | 5 | 6 |
| Number of Single Authored Papers | 2 | 2 |
| Total Cites to Single Authored Papers | 0 | 0 |
| Number of Single+First Authored Papers | 90 | 90 |
| Total Cites to Single+First Authored Papers | 336 | 443 |
| Number of Single+First+Last Authored Papers | 96 | 96 |
| Total Cites to Single+First+Last Authored Papers | 345 | 454 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 396 | 451 |
| Ratio of Total Citations to Distinct Citing Papers | 1.47 | 1.85 |
| Self-Citation Percentage |
30.25%
|
|
Koyama, Motomichi
Institute for Materials Research, Tohoku University,
Japan
2021 Rank: 94148
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Enabling & Strategic Technologies
SubField 1:
Materials
SubField 2:
Mining & Metallurgy
Rank in SubField 1: 1783 out of 285331 Researchers
Data For The Year: 2021
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 94148 | 74335 |
| Total Cites | 899 | 1307 |
| H-index | 15 | 17 |
| Hm-index | 6 | 7 |
| Number of Single Authored Papers | 0 | 0 |
| Total Cites to Single Authored Papers | 0 | 0 |
| Number of Single+First Authored Papers | 82 | 82 |
| Total Cites to Single+First Authored Papers | 531 | 717 |
| Number of Single+First+Last Authored Papers | 88 | 88 |
| Total Cites to Single+First+Last Authored Papers | 537 | 726 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 599 | 691 |
| Ratio of Total Citations to Distinct Citing Papers | 1.50 | 1.89 |
| Self-Citation Percentage |
31.22%
|
|
Koyama, Motomichi
Tohoku University,
Japan
2020 Rank: 85477
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Enabling & Strategic Technologies
SubField 1:
Materials
SubField 2:
Mining & Metallurgy
Rank in SubField 1: 1629 out of 177931 Researchers
Data For The Year: 2020
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 85477 | 68202 |
| Total Cites | 664 | 939 |
| H-index | 13 | 15 |
| Hm-index | 5 | 6 |
| Number of Single Authored Papers | 0 | 0 |
| Total Cites to Single Authored Papers | 0 | 0 |
| Number of Single+First Authored Papers | 77 | 77 |
| Total Cites to Single+First Authored Papers | 432 | 559 |
| Number of Single+First+Last Authored Papers | 82 | 82 |
| Total Cites to Single+First+Last Authored Papers | 435 | 570 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 476 | 560 |
| Ratio of Total Citations to Distinct Citing Papers | 1.39 | 1.68 |
| Self-Citation Percentage |
29.29%
|
|
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