Koji Ichiyama
- Hepatology top 1%
- Infectious Diseases top 2%
- Epidemiology top 10%
- Molecular Biology
- Public Health, Environmental and Occupational Health
- Co-authors
- Hiroaki OkamotoMasaharu TakahashiToshinori TanakaYu HoshinoHideyuki TakahashiKentaro YamadaNaoki YamamotoShigeo Nagashima
- Topics
- HIV Research and Treatment (6 papers)Viral gastroenteritis research and epidemiology (6 papers)Hepatitis Viruses Studies and Epidemiology (6 papers)
- Partner nations
- JapanSingaporeUnited States
In The Last Decade
Koji Ichiyama
25 papers receiving 1.1k citations
Peers
Comparison fields: 5 of 80
- Hepatology 590
- Infectious Diseases 572
- Epidemiology 269
- Molecular Biology 142
- Public Health, Environmental and Occupational Health 138
Countries citing papers authored by Koji Ichiyama
This map shows the geographic impact of Koji Ichiyama's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Koji Ichiyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koji Ichiyama more than expected).
Fields of papers citing papers by Koji Ichiyama
This network shows the impact of papers produced by Koji Ichiyama. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Koji Ichiyama. The network helps show where Koji Ichiyama may publish in the future.
Co-authorship network of co-authors of Koji Ichiyama
This figure shows the co-authorship network connecting the top 25 collaborators of Koji Ichiyama. A scholar is included among the top collaborators of Koji Ichiyama based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Koji Ichiyama. Koji Ichiyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 1 | |
| 2 | 0 | |
| 3 | 2 | |
| 4 | 1 | |
| 5 | 31 | |
| 6 | 87 | |
| 7 | 24 | |
| 8 | 67 | |
| 9 | 37 | |
| 10 | 15 | |
| 11 | 37 | |
| 12 | 62 | |
| 13 | 65 | |
| 14 | 76 | |
| 15 | 37 | |
| 16 | 62 | |
| 17 | 46 | |
| 18 | 135 | |
| 19 | 4 | |
| 20 | 10 |
About Koji Ichiyama
Koji Ichiyama is a scholar working on Virology, Hepatology and Infectious Diseases, having authored 27 papers that have together received 1.1k indexed citations. Recurring topics across this work include HIV Research and Treatment (6 papers), Viral gastroenteritis research and epidemiology (6 papers) and Hepatitis Viruses Studies and Epidemiology (6 papers). The work is most often cited by research in Hepatology (590 citations), Infectious Diseases (572 citations) and Virology (83 citations). Koji Ichiyama has collaborated with scholars based in Japan, Singapore and United States. Frequent co-authors include Hiroaki Okamoto, Masaharu Takahashi, Toshinori Tanaka, Yu Hoshino, Hideyuki Takahashi, Kentaro Yamada, Naoki Yamamoto, Shigeo Nagashima, Kenji Ohba and Youichi Suzuki. Their work appears in journals such as Journal of Clinical Oncology, PLoS ONE and Macromolecules.
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.