Ryo Koyama

2.6k total citations
64 papers, 1.1k citations indexed

About

Ryo Koyama is a scholar working on Pulmonary and Respiratory Medicine, Oncology and Electrical and Electronic Engineering. According to data from OpenAlex, Ryo Koyama has authored 64 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Pulmonary and Respiratory Medicine, 19 papers in Oncology and 18 papers in Electrical and Electronic Engineering. Recurrent topics in Ryo Koyama's work include Lung Cancer Treatments and Mutations (19 papers), Advanced Fiber Optic Sensors (9 papers) and Lung Cancer Diagnosis and Treatment (9 papers). Ryo Koyama is often cited by papers focused on Lung Cancer Treatments and Mutations (19 papers), Advanced Fiber Optic Sensors (9 papers) and Lung Cancer Diagnosis and Treatment (9 papers). Ryo Koyama collaborates with scholars based in Japan, China and Denmark. Ryo Koyama's co-authors include Tetsu Akiyama, Yoshihiro Kawasaki, Rina Sato, Takeshi Jimbo, Shinji Takada, Takao Senda, Osamu Higuchi, Keiko Haraguchi, Takao Ishidate and Tsuyoshi Morishita and has published in prestigious journals such as Science, Journal of Clinical Oncology and SHILAP Revista de lepidopterología.

In The Last Decade

Ryo Koyama

57 papers receiving 1.1k citations

Peers

Ryo Koyama
Bo Qin China
Giuseppe Privitera Italy
Xi Zhao China
Xiaodong Ma China
N. Kawahara Japan
Chenjin Jin China
Shinji Abe Japan
Zhihuan Li China
Jiguang Bao China
Lianbo Li China
Bo Qin China
Ryo Koyama
Citations per year, relative to Ryo Koyama Ryo Koyama (= 1×) peers Bo Qin

Countries citing papers authored by Ryo Koyama

Since Specialization
Citations

This map shows the geographic impact of Ryo 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 Ryo Koyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryo Koyama more than expected).

Fields of papers citing papers by Ryo Koyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryo 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 Ryo Koyama. The network helps show where Ryo Koyama may publish in the future.

Co-authorship network of co-authors of Ryo Koyama

This figure shows the co-authorship network connecting the top 25 collaborators of Ryo Koyama. A scholar is included among the top collaborators of Ryo 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 Ryo Koyama. Ryo Koyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Koyama, Ryo, et al.. (2024). Isolated unilateral absence of the pulmonary artery (IUAPA) presenting with progressive interstitial shadows: A case report. SHILAP Revista de lepidopterología. 12(10). e70048–e70048.
2.
Sato, Tadashi, Junko Watanabe, Toshifumi Yae, et al.. (2024). Impact of the COVID-19 pandemic on COPD exacerbations in Japanese patients: a retrospective study. Scientific Reports. 14(1). 2792–2792. 3 indexed citations
3.
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Horinouchi, Hidehito, Shogo Nomura, Satoshi Igawa, et al.. (2023). Reconsidering the Cutoff Value for Sensitive and Refractory Relapses in Extensive-Stage SCLC in the Era of Immunotherapy. Journal of Thoracic Oncology. 19(2). 325–336. 9 indexed citations
5.
Minegishi, Yuji, Hironori Uruga, Kazutoshi Isobe, et al.. (2023). Carboplatin and weekly paclitaxel in combination with bevacizumab for the treatment of advanced non-small cell lung cancer complicated by idiopathic interstitial pneumonias: A feasibility study. Respiratory Investigation. 61(5). 625–631. 5 indexed citations
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Udagawa, Hibiki, Eri Sugiyama, Toshiyuki Harada, et al.. (2021). Bevacizumab plus platinum-based chemotherapy in advanced non-squamous non-small-cell lung cancer: a randomized, open- label phase 2 study (CLEAR). Translational Lung Cancer Research. 10(7). 3059–3070. 2 indexed citations
8.
Abe, Yoshiteru, et al.. (2020). Investigation Into the Influence of High-Power Optical Transmission on Fiber Withdrawal From Optical Connector. Journal of Lightwave Technology. 38(18). 5128–5135. 3 indexed citations
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Kato, Motoyasu, Tomoko Yamada, Yuta Arai, et al.. (2019). Prognostic differences among patients with idiopathic interstitial pneumonias with acute exacerbation of varying pathogenesis: a retrospective study. Respiratory Research. 20(1). 287–287. 10 indexed citations
11.
Tokito, Takaaki, Ryo Ko, Chiyo K. Imamura, et al.. (2019). P1.14-30 Phase I Study of Afatinib Plus Bevacizumab in Patients with Advanced Non-Small Cell Lung Cancer Harboring EGFR Mutations. Journal of Thoracic Oncology. 14(10). S565–S565. 1 indexed citations
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Nakamura, Kota, Motoyasu Kato, Takehito Shukuya, et al.. (2017). Surfactant protein-D predicts prognosis of interstitial lung disease induced by anticancer agents in advanced lung cancer: a case control study. BMC Cancer. 17(1). 302–302. 11 indexed citations
14.
Koyama, Ryo, et al.. (2016). Investigation of connector damage caused by high power transmission in optical connector with dust. International Conference on Photonics in Switching. 1–3. 2 indexed citations
15.
Kato, Motoyasu, Takehito Shukuya, Keita Mori, et al.. (2016). Cerebral infarction in advanced non-small cell lung cancer: a case control study. BMC Cancer. 16(1). 203–203. 14 indexed citations
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Kato, Motoyasu, Takehito Shukuya, Fumiyuki Takahashi, et al.. (2014). Pemetrexed for advanced non-small cell lung cancer patients with interstitial lung disease. BMC Cancer. 14(1). 508–508. 37 indexed citations
18.
Koyama, Ryo, et al.. (2010). A Study on Jointing of Coated Optical Fiber. IEICE Technical Report; IEICE Tech. Rep.. 109(377). 1–4. 1 indexed citations
19.
Koyama, Ryo, et al.. (2009). Insertion Loss of Hole-Assisted Fiber in Mechanical Splice. 108(395). 55–58. 1 indexed citations
20.
Jimbo, Takeshi, Yoshihiro Kawasaki, Ryo Koyama, et al.. (2002). Identification of a link between the tumour suppressor APC and the kinesin superfamily. Nature Cell Biology. 4(4). 323–327. 253 indexed citations

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.

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