Ohyama, Chikara
Hirosaki University,
Japan
2025 Rank: 141490
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Clinical Medicine
SubField 1:
Urology & Nephrology
SubField 2:
Oncology & Carcinogenesis
Rank in SubField 1: 1476 out of 92052 Researchers
Data For The Year: 2025
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 141490 | 133243 |
| Total Cites | 7787 | 9660 |
| H-index | 41 | 46 |
| Hm-index | 14 | 16 |
| Number of Single Authored Papers | 4 | 4 |
| Total Cites to Single Authored Papers | 60 | 60 |
| Number of Single+First Authored Papers | 30 | 30 |
| Total Cites to Single+First Authored Papers | 660 | 753 |
| Number of Single+First+Last Authored Papers | 222 | 222 |
| Total Cites to Single+First+Last Authored Papers | 2515 | 3280 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 6806 | 7657 |
| Ratio of Total Citations to Distinct Citing Papers | 1.14 | 1.26 |
| Self-Citation Percentage |
19.39%
|
|
Ohyama, Chikara
Hirosaki University,
Japan
2024 Rank: 142043
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Clinical Medicine
SubField 1:
Urology & Nephrology
SubField 2:
Oncology & Carcinogenesis
Rank in SubField 1: 1498 out of 87532 Researchers
Data For The Year: 2024
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 142043 | 131768 |
| Total Cites | 7173 | 8986 |
| H-index | 39 | 44 |
| Hm-index | 14 | 16 |
| Number of Single Authored Papers | 4 | 4 |
| Total Cites to Single Authored Papers | 60 | 60 |
| Number of Single+First Authored Papers | 30 | 30 |
| Total Cites to Single+First Authored Papers | 640 | 736 |
| Number of Single+First+Last Authored Papers | 222 | 222 |
| Total Cites to Single+First+Last Authored Papers | 2242 | 3007 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 6272 | 7069 |
| Ratio of Total Citations to Distinct Citing Papers | 1.14 | 1.27 |
| Self-Citation Percentage |
20.18%
|
|
Ohyama, Chikara
Hirosaki University,
Japan
2023 Rank: 142250
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Clinical Medicine
SubField 1:
Urology & Nephrology
SubField 2:
Oncology & Carcinogenesis
Rank in SubField 1: 1507 out of 82885 Researchers
Data For The Year: 2023
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 142250 | 132246 |
| Total Cites | 6588 | 8408 |
| H-index | 37 | 42 |
| Hm-index | 13 | 15 |
| Number of Single Authored Papers | 4 | 4 |
| Total Cites to Single Authored Papers | 56 | 56 |
| Number of Single+First Authored Papers | 30 | 30 |
| Total Cites to Single+First Authored Papers | 616 | 715 |
| Number of Single+First+Last Authored Papers | 280 | 280 |
| Total Cites to Single+First+Last Authored Papers | 2043 | 2810 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 5745 | 6529 |
| Ratio of Total Citations to Distinct Citing Papers | 1.15 | 1.29 |
| Self-Citation Percentage |
21.65%
|
|
Ohyama, Chikara
Hirosaki University,
Japan
2022 Rank: 145964
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Clinical Medicine
SubField 1:
Urology & Nephrology
SubField 2:
Oncology & Carcinogenesis
Rank in SubField 1: 1543 out of 79729 Researchers
Data For The Year: 2022
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 145964 | 132660 |
| Total Cites | 5676 | 7302 |
| H-index | 35 | 40 |
| Hm-index | 12 | 14 |
| Number of Single Authored Papers | 4 | 4 |
| Total Cites to Single Authored Papers | 55 | 55 |
| Number of Single+First Authored Papers | 30 | 30 |
| Total Cites to Single+First Authored Papers | 589 | 687 |
| Number of Single+First+Last Authored Papers | 254 | 254 |
| Total Cites to Single+First+Last Authored Papers | 1681 | 2379 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 4945 | 5632 |
| Ratio of Total Citations to Distinct Citing Papers | 1.15 | 1.30 |
| Self-Citation Percentage |
22.27%
|
|
Ohyama, Chikara
Hirosaki University,
Japan
2021 Rank: 147220
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Clinical Medicine
SubField 1:
Urology & Nephrology
SubField 2:
Oncology & Carcinogenesis
Rank in SubField 1: 1557 out of 76322 Researchers
Data For The Year: 2021
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 147220 | 136022 |
| Total Cites | 5273 | 6842 |
| H-index | 34 | 38 |
| Hm-index | 12 | 14 |
| Number of Single Authored Papers | 4 | 4 |
| Total Cites to Single Authored Papers | 53 | 53 |
| Number of Single+First Authored Papers | 30 | 30 |
| Total Cites to Single+First Authored Papers | 571 | 668 |
| Number of Single+First+Last Authored Papers | 220 | 220 |
| Total Cites to Single+First+Last Authored Papers | 1530 | 2206 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 4609 | 5266 |
| Ratio of Total Citations to Distinct Citing Papers | 1.14 | 1.30 |
| Self-Citation Percentage |
22.93%
|
|
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