Nobuyuki Takeyama

21 papers and 334 indexed citations i.

About

Nobuyuki Takeyama is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Nobuyuki Takeyama has authored 21 papers receiving a total of 334 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Surgery, 9 papers in Pulmonary and Respiratory Medicine and 6 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Nobuyuki Takeyama’s work include Cerebrovascular and Carotid Artery Diseases (4 papers), Pancreatic and Hepatic Oncology Research (4 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (3 papers). Nobuyuki Takeyama is often cited by papers focused on Cerebrovascular and Carotid Artery Diseases (4 papers), Pancreatic and Hepatic Oncology Research (4 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (3 papers). Nobuyuki Takeyama collaborates with scholars based in Japan and United States. Nobuyuki Takeyama's co-authors include Yoshimitsu Ohgiya, Takehiko Gokan, Hirotsugu Munechika, Kiyoshi Hataya, Makoto Nakanishi, Shuichi Satoh, Mitsuo Kusano, Masanori Hirose, Nobuyuki Ohike and Akihiko Sekizawa and has published in prestigious journals such as Radiology, Radiographics and British Journal of Radiology.

In The Last Decade

Co-authorship network of co-authors of Nobuyuki Takeyama i

Fields of papers citing papers by Nobuyuki Takeyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Nobuyuki Takeyama

Since Specialization
Citations

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