Takeshi Tomiyama

36 papers and 597 indexed citations i.

About

Takeshi Tomiyama is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Takeshi Tomiyama has authored 36 papers receiving a total of 597 indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Surgery, 24 papers in Pulmonary and Respiratory Medicine and 12 papers in Oncology. Recurrent topics in Takeshi Tomiyama’s work include Gallbladder and Bile Duct Disorders (23 papers), Pediatric Hepatobiliary Diseases and Treatments (20 papers) and Pancreatic and Hepatic Oncology Research (12 papers). Takeshi Tomiyama is often cited by papers focused on Gallbladder and Bile Duct Disorders (23 papers), Pediatric Hepatobiliary Diseases and Treatments (20 papers) and Pancreatic and Hepatic Oncology Research (12 papers). Takeshi Tomiyama collaborates with scholars based in Japan and Germany. Takeshi Tomiyama's co-authors include Kiichi Tamada, Kenichi Ido, Shinichi Wada, Kentaro Sugano, Akira Ōhashi, Shigeo Tano, Yukihiro Satoh, Ken Kimura, Norio Ueno and Norio Isoda and has published in prestigious journals such as Cancer Research, The American Journal of Gastroenterology and American Journal of Roentgenology.

In The Last Decade

Co-authorship network of co-authors of Takeshi Tomiyama i

Fields of papers citing papers by Takeshi Tomiyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Takeshi Tomiyama

Since Specialization
Citations

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