Hirofumi Kamachi

110 total papers · 1.6k total citations
79 papers, 1.2k citations indexed

About

Hirofumi Kamachi is a scholar working on Surgery, Oncology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Hirofumi Kamachi has authored 79 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 47 papers in Surgery, 30 papers in Oncology and 27 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Hirofumi Kamachi's work include Cholangiocarcinoma and Gallbladder Cancer Studies (19 papers), Pancreatic and Hepatic Oncology Research (16 papers) and Hepatocellular Carcinoma Treatment and Prognosis (12 papers). Hirofumi Kamachi is often cited by papers focused on Cholangiocarcinoma and Gallbladder Cancer Studies (19 papers), Pancreatic and Hepatic Oncology Research (16 papers) and Hepatocellular Carcinoma Treatment and Prognosis (12 papers). Hirofumi Kamachi collaborates with scholars based in Japan, United States and United Kingdom. Hirofumi Kamachi's co-authors include Toshiya Kamiyama, Satoru Todo, Michiaki Matsushita, Akinobu Taketomi, Kazuaki Nakanishi, Hideki Yokoo, Munenori Tahara, Yosuke Tsuruga, Takahiro Einama and Tatsuya Orimo and has published in prestigious journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and Hepatology.

In The Last Decade

Hirofumi Kamachi

72 papers receiving 1.2k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Hirofumi Kamachi 625 519 436 255 189 79 1.2k
Katsunori Kawano 607 1.0× 503 1.0× 316 0.7× 267 1.0× 155 0.8× 56 1.2k
Taek‐Keun Nam 654 1.0× 710 1.4× 420 1.0× 195 0.8× 103 0.5× 101 1.5k
C Bognel 614 1.0× 566 1.1× 463 1.1× 376 1.5× 107 0.6× 61 1.5k
Kota Okinaga 455 0.7× 777 1.5× 325 0.7× 121 0.5× 201 1.1× 64 1.3k
A Yamaguchi 373 0.6× 610 1.2× 389 0.9× 139 0.5× 355 1.9× 97 1.3k
Shu-you Peng 648 1.0× 487 0.9× 372 0.9× 190 0.7× 203 1.1× 93 1.1k
Johannes Ludwig 239 0.4× 494 1.0× 337 0.8× 366 1.4× 264 1.4× 70 1.2k
Fumitake Hata 492 0.8× 446 0.9× 156 0.4× 212 0.8× 300 1.6× 78 1.1k
Lakshmi Rajdev 296 0.5× 597 1.2× 300 0.7× 119 0.5× 223 1.2× 64 1.1k
John E. Mullinax 388 0.6× 661 1.3× 400 0.9× 83 0.3× 219 1.2× 71 1.2k

Countries citing papers authored by Hirofumi Kamachi

Since Specialization
Citations

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

Fields of papers citing papers by Hirofumi Kamachi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hirofumi Kamachi

This figure shows the co-authorship network connecting the top 25 collaborators of Hirofumi Kamachi. A scholar is included among the top collaborators of Hirofumi Kamachi based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Hirofumi Kamachi. Hirofumi Kamachi is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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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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2026