Yuichiro Kojima

1.6k total citations
80 papers, 1.1k citations indexed

About

Yuichiro Kojima is a scholar working on Surgery, Oncology and Molecular Biology. According to data from OpenAlex, Yuichiro Kojima has authored 80 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Surgery, 15 papers in Oncology and 13 papers in Molecular Biology. Recurrent topics in Yuichiro Kojima's work include Helicobacter pylori-related gastroenterology studies (9 papers), Gastric Cancer Management and Outcomes (8 papers) and Pancreatic and Hepatic Oncology Research (7 papers). Yuichiro Kojima is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (9 papers), Gastric Cancer Management and Outcomes (8 papers) and Pancreatic and Hepatic Oncology Research (7 papers). Yuichiro Kojima collaborates with scholars based in Japan, Thailand and United States. Yuichiro Kojima's co-authors include Hiroshi Maeda, Tadashi Sato, Fumiaki Kitahara, M Fujino, Tsutomu Araki, Kenichi Kobayashi, Yuji Miyamoto, Takaaki Akaike, Chung Owyang and Yuki Hashimoto and has published in prestigious journals such as Gastroenterology, Cancer and Gut.

In The Last Decade

Yuichiro Kojima

72 papers receiving 1.1k citations

Peers

Yuichiro Kojima
Yuichiro Kojima
Citations per year, relative to Yuichiro Kojima Yuichiro Kojima (= 1×) peers Xiao Liang

Countries citing papers authored by Yuichiro Kojima

Since Specialization
Citations

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

Fields of papers citing papers by Yuichiro Kojima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Yuichiro Kojima

This figure shows the co-authorship network connecting the top 25 collaborators of Yuichiro Kojima. A scholar is included among the top collaborators of Yuichiro Kojima 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 Yuichiro Kojima. Yuichiro Kojima is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Uda, Takehiro, Yuta Tanoue, Yuichiro Kojima, et al.. (2024). A scoping review of seizure onset pattern in SEEG and a proposal for morphological classification. Journal of Clinical Neuroscience. 123. 84–90. 2 indexed citations
2.
Ohyama, Hiroshi, Yosuke Hirotsu, Kenji Amemiya, et al.. (2024). Liquid biopsy of wash samples obtained via endoscopic ultrasound‐guided fine‐needle biopsy: Comparison with liquid biopsy of plasma in pancreatic cancer. Diagnostic Cytopathology. 52(6). 325–331. 1 indexed citations
3.
4.
Ohyama, Hiroshi, Yosuke Hirotsu, Kenji Amemiya, et al.. (2023). Comparison of genomic profiling of circulating tumor DNA in pancreaticobiliary malignancies in plasma and bile. Cancer. 129(11). 1714–1722. 4 indexed citations
5.
Ohyama, Hiroshi, Yosuke Hirotsu, Kenji Amemiya, et al.. (2023). Development of a molecular barcode detection system for pancreaticobiliary malignancies and comparison with next-generation sequencing. Cancer Genetics. 280-281. 6–12. 18 indexed citations
6.
Ohyama, Hiroshi, Yosuke Hirotsu, Kenji Amemiya, et al.. (2022). Detection of actionable mutations in cytological specimens obtained by endoscopic ultrasound-guided fine needle aspiration with rapid onsite evaluation in pancreatic cancer. Annals of Diagnostic Pathology. 60. 152008–152008. 4 indexed citations
8.
Ohyama, Hiroshi, Yosuke Hirotsu, Kenji Amemiya, et al.. (2021). Detection of actionable mutations in archived cytological bile specimens. Journal of Hepato-Biliary-Pancreatic Sciences. 28(10). 837–847. 8 indexed citations
9.
Mitsuda, Takashi & Yuichiro Kojima. (2020). Spiral air gripper that coils around objects of various shapes. The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec). 2020(0). 1A1–J21. 1 indexed citations
10.
Hirotsu, Yosuke, Hitoshi Mochizuki, Kenji Amemiya, et al.. (2019). Deficiency of mismatch repair genes is less frequently observed in signet ring cell compared with non-signet ring cell gastric cancer. Medical Oncology. 36(3). 23–23. 12 indexed citations
11.
Hirotsu, Yosuke, Hiroshi Ohyama, Hitoshi Mochizuki, et al.. (2019). Molecular subtype switching in early-stage gastric cancers with multiple occurrences. Journal of Gastroenterology. 54(8). 674–686. 15 indexed citations
12.
Mochizuki, Hitoshi, Yuichiro Kojima, Dai Yoshimura, et al.. (2019). Validation of Tokyo Guideline 2013 as Treatment of Acute Cholecystitis by Real World Data. Digestive Diseases. 37(4). 303–308. 6 indexed citations
13.
Obi, Shuntaro, Takahisa Sato, Shinpei Sato, et al.. (2019). The efficacy and safety of lenvatinib for advanced hepatocellular carcinoma in a real-world setting. Hepatology International. 13(2). 199–204. 26 indexed citations
14.
Abdullah, Murdani, Fumiaki Kitahara, Tadashi Sato, et al.. (2003). Life Style Factors Influencing Serum Pepsinogen Levels in Healthy Japanese: A Prospective Study. The Indonesian Journal of Gastroenterology Hepatology and Digestive Endoscopy. 4(1). 6–10. 1 indexed citations
15.
Kitahara, Fumiaki, Kenichi Kobayashi, Tadashi Sato, et al.. (1999). Accuracy of screening for gastric cancer using serum pepsinogen concentrations. Gut. 44(5). 693–697. 191 indexed citations
16.
Sato, Tadashi, Masayuki Fujino, Yuichiro Kojima, et al.. (1999). Endoscopic urease sensor system for detecting Helicobacter pylori on gastric mucosa. Gastrointestinal Endoscopy. 49(1). 32–38. 10 indexed citations
17.
Kitahara, Fumiaki, et al.. (1998). Severe atrophic gastritis with Helicobacter pylori infection and gastric cancer. Gastric Cancer. 1(2). 118–124. 26 indexed citations
18.
Kojima, Yuichiro, Masahiro Ikeda, Toshiya Nakamura, & Masayuki Fujino. (1992). Nonspecific esophageal motor disorder associated with thickened muscularis propria of the esophagus. Gastroenterology. 103(1). 333–335. 13 indexed citations
19.
Sato, Keizo, Takaaki Akaike, Yuichiro Kojima, et al.. (1992). Evidence of Direct Generation of Oxygen Free Radicals from Heterocyclic Amines by NADPH/Cytochrome P‐450 Reductase in vitro. Japanese Journal of Cancer Research. 83(11). 1204–1209. 41 indexed citations
20.
Imamura, Yorishige, Yuichiro Kojima, & Masaki Otagiri. (1986). Reduction of acetohexamide by rabbit heart cytosol.. Journal of Pharmacobio-Dynamics. 9(1). 110–111. 2 indexed citations

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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026