Ryoji Yamakawa

51 papers and 660 indexed citations i.

About

Ryoji Yamakawa is a scholar working on Ophthalmology, Radiology, Nuclear Medicine and Imaging and Neurology. According to data from OpenAlex, Ryoji Yamakawa has authored 51 papers receiving a total of 660 indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Ophthalmology, 19 papers in Radiology, Nuclear Medicine and Imaging and 8 papers in Neurology. Recurrent topics in Ryoji Yamakawa’s work include Intraocular Surgery and Lenses (13 papers), Retinal Diseases and Treatments (11 papers) and Retinal and Macular Surgery (11 papers). Ryoji Yamakawa is often cited by papers focused on Intraocular Surgery and Lenses (13 papers), Retinal Diseases and Treatments (11 papers) and Retinal and Macular Surgery (11 papers). Ryoji Yamakawa collaborates with scholars based in Japan and United States. Ryoji Yamakawa's co-authors include Yumiko Yoshida, Sho‐ichi Yamagishi, Takanori Matsui, Kei Fukami, Yuko Jinnouchi, Tsutomu Imaizumi, Masatoshi Haruta, Shin-ichi Manabe, Sayaka Maeda and Nobuhisa Mizuki and has published in prestigious journals such as PLoS ONE, Ophthalmology and Annals of the Rheumatic Diseases.

In The Last Decade

Co-authorship network of co-authors of Ryoji Yamakawa i

Fields of papers citing papers by Ryoji Yamakawa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Ryoji Yamakawa

Since Specialization
Citations

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

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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2025