Kazuo Niwaya

75 papers and 1.7k indexed citations i.

About

Kazuo Niwaya is a scholar working on Surgery, Cardiology and Cardiovascular Medicine and Biomedical Engineering. According to data from OpenAlex, Kazuo Niwaya has authored 75 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 56 papers in Surgery, 49 papers in Cardiology and Cardiovascular Medicine and 21 papers in Biomedical Engineering. Recurrent topics in Kazuo Niwaya’s work include Cardiac Valve Diseases and Treatments (40 papers), Cardiac and Coronary Surgery Techniques (23 papers) and Cardiac Structural Anomalies and Repair (22 papers). Kazuo Niwaya is often cited by papers focused on Cardiac Valve Diseases and Treatments (40 papers), Cardiac and Coronary Surgery Techniques (23 papers) and Cardiac Structural Anomalies and Repair (22 papers). Kazuo Niwaya collaborates with scholars based in Japan, United States and Poland. Kazuo Niwaya's co-authors include Soichiro Kitamura, Junjiro Kobayashi, Osamu Tagusari, Ko Bando, Hiroyuki Nakajima, Toshikatsu Yagihara, Yoshikado Sasako, Christopher J. Knott‐Craig, Ronald C. Elkins and Mary M. Lane and has published in prestigious journals such as Circulation, Journal of the American College of Cardiology and Biomaterials.

In The Last Decade

Co-authorship network of co-authors of Kazuo Niwaya i

Fields of papers citing papers by Kazuo Niwaya

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Kazuo Niwaya

Since Specialization
Citations

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