Rikikazu Sugiyama

59 papers and 713 indexed citations i.

About

Rikikazu Sugiyama is a scholar working on Reproductive Medicine, Public Health, Environmental and Occupational Health and Immunology. According to data from OpenAlex, Rikikazu Sugiyama has authored 59 papers receiving a total of 713 indexed citations (citations by other indexed papers that have themselves been cited), including 42 papers in Reproductive Medicine, 36 papers in Public Health, Environmental and Occupational Health and 23 papers in Immunology. Recurrent topics in Rikikazu Sugiyama’s work include Reproductive System and Pregnancy (23 papers), Reproductive Biology and Fertility (23 papers) and Ovarian function and disorders (21 papers). Rikikazu Sugiyama is often cited by papers focused on Reproductive System and Pregnancy (23 papers), Reproductive Biology and Fertility (23 papers) and Ovarian function and disorders (21 papers). Rikikazu Sugiyama collaborates with scholars based in Japan, United States and Denmark. Rikikazu Sugiyama's co-authors include Koji Nakagawa, Keiji Kuroda, Koushi Yamaguchi, Joanne Kwak‐Kim, Yasushi Kuribayashi, Rie Sugiyama, Michi Hisano, Satoru Takamizawa, Yuko Ikemoto and Asako Ochiai and has published in prestigious journals such as Scientific Reports, Fertility and Sterility and Nutrients.

In The Last Decade

Co-authorship network of co-authors of Rikikazu Sugiyama i

Fields of papers citing papers by Rikikazu Sugiyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Rikikazu Sugiyama

Since Specialization
Citations

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