Junko Koyama
- Organic Chemistry top 5%
- Molecular Biology
- Plant Science top 5%
- Toxicology top 0.2%
- Biochemistry top 2%
- Co-authors
- Kiyoshi TagaharaIzumi MoritaToshiyuki OsakaiNorihiro KobayashiHiroki HottaYoshio TsujinoMasashi UedaKei‐Ichi Hirai
- Topics
- Bioactive Compounds and Antitumor Agents (21 papers)Phytochemistry and biological activity of medicinal plants (14 papers)Synthesis and Reactions of Organic Compounds (11 papers)
- Partner nations
- JapanUnited StatesNigeria
In The Last Decade
Junko Koyama
71 papers receiving 1.7k citations
Peers
Comparison fields: 5 of 111
- Organic Chemistry 622
- Molecular Biology 473
- Plant Science 401
- Toxicology 398
- Biochemistry 204
Countries citing papers authored by Junko Koyama
This map shows the geographic impact of Junko Koyama'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 Junko Koyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Junko Koyama more than expected).
Fields of papers citing papers by Junko Koyama
This network shows the impact of papers produced by Junko Koyama. 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 Junko Koyama. The network helps show where Junko Koyama may publish in the future.
Co-authorship network of co-authors of Junko Koyama
This figure shows the co-authorship network connecting the top 25 collaborators of Junko Koyama. A scholar is included among the top collaborators of Junko Koyama 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 Junko Koyama. Junko Koyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 16 | |
| 2 | 12 | |
| 3 | 12 | |
| 4 | 11 | |
| 5 | 80 | |
| 6 | 68 | |
| 7 | 11 | |
| 8 | 18 | |
| 9 | 14 | |
| 10 | 25 | |
| 11 | 12 | |
| 12 | 94 | |
| 13 | 40 | |
| 14 | 238 | |
| 15 | 7 | |
| 16 | 31 | |
| 17 | 27 | |
| 18 | 56 | |
| 19 | 56 | |
| 20 | 7 |
About Junko Koyama
Junko Koyama is a scholar working on Toxicology, Organic Chemistry and Horticulture, having authored 73 papers that have together received 1.7k indexed citations. Recurring topics across this work include Bioactive Compounds and Antitumor Agents (21 papers), Phytochemistry and biological activity of medicinal plants (14 papers) and Synthesis and Reactions of Organic Compounds (11 papers). The work is most often cited by research in Toxicology (398 citations), Biochemistry (204 citations) and Complementary and alternative medicine (184 citations). Junko Koyama has collaborated with scholars based in Japan, United States and Nigeria. Frequent co-authors include Kiyoshi Tagahara, Izumi Morita, Toshiyuki Osakai, Norihiro Kobayashi, Hiroki Hotta, Yoshio Tsujino, Masashi Ueda, Kei‐Ichi Hirai, Harukuni Tokuda and Hoyoku Nishino. Their work appears in journals such as Analytical Biochemistry, Antimicrobial Agents and Chemotherapy and Journal of Chromatography A.
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.