Takashi Oyama

4.7k total citations
110 papers, 2.6k citations indexed

About

Takashi Oyama is a scholar working on Oncology, Surgery and Pathology and Forensic Medicine. According to data from OpenAlex, Takashi Oyama has authored 110 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Oncology, 20 papers in Surgery and 19 papers in Pathology and Forensic Medicine. Recurrent topics in Takashi Oyama's work include Lymphoma Diagnosis and Treatment (17 papers), Viral-associated cancers and disorders (12 papers) and Thermochemical Biomass Conversion Processes (8 papers). Takashi Oyama is often cited by papers focused on Lymphoma Diagnosis and Treatment (17 papers), Viral-associated cancers and disorders (12 papers) and Thermochemical Biomass Conversion Processes (8 papers). Takashi Oyama collaborates with scholars based in Japan, United States and Greece. Takashi Oyama's co-authors include Yuzuru Masuda, Shinji Watanabe, Miki Murata, Isao Mochida, Yozo Korai, Naoko Asano, Masato Yoshiya, Shigeo Nakamura, Yoshie Shimoyama and Yasuo Morishima and has published in prestigious journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and Blood.

In The Last Decade

Takashi Oyama

104 papers receiving 2.5k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Takashi Oyama Japan 28 785 680 378 355 329 110 2.6k
Akio Yamaguchi Japan 37 1.3k 1.7× 495 0.7× 197 0.5× 974 2.7× 746 2.3× 242 4.4k
Juha P. Väyrynen Finland 30 1.2k 1.5× 235 0.3× 104 0.3× 242 0.7× 255 0.8× 115 2.9k
Fulvio Porta Italy 34 1.1k 1.5× 133 0.2× 177 0.5× 216 0.6× 273 0.8× 109 4.4k
Satoshi Okabe Japan 26 579 0.7× 145 0.2× 647 1.7× 329 0.9× 276 0.8× 62 2.2k
Tomoyuki Endo Japan 26 548 0.7× 427 0.6× 43 0.1× 107 0.3× 214 0.7× 147 2.6k
Bernard Brun France 26 331 0.4× 254 0.4× 586 1.6× 244 0.7× 210 0.6× 119 2.4k
Alessandro Napoli Italy 40 442 0.6× 266 0.4× 613 1.6× 1.3k 3.7× 1.6k 4.8× 143 5.1k
Jan Richter Czechia 27 459 0.6× 215 0.3× 43 0.1× 577 1.6× 473 1.4× 90 3.0k
Evan B. Douple United States 26 667 0.8× 127 0.2× 168 0.4× 306 0.9× 710 2.2× 72 2.3k
Peter W. Stratford United Kingdom 19 218 0.3× 86 0.1× 235 0.6× 447 1.3× 340 1.0× 24 1.9k

Countries citing papers authored by Takashi Oyama

Since Specialization
Citations

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

Fields of papers citing papers by Takashi Oyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Takashi Oyama

This figure shows the co-authorship network connecting the top 25 collaborators of Takashi Oyama. A scholar is included among the top collaborators of Takashi Oyama 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 Takashi Oyama. Takashi Oyama 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.
Hirano, Yuki, Masashi Tsuruta, Takashi Oyama, et al.. (2025). Risk Factors for Postoperative Incisional Hernia and Its Effects on Long-Term Outcomes After Gastrointestinal and Hepatopancreaticobiliary Cancer Surgery. The American Surgeon. 91(12). 2120–2128.
2.
Oyama, Takashi, Kumi Nakazaki, Yudai Nakai, et al.. (2023). Aortitis Associated with Prophylactic Short-acting Granulocyte Colony-stimulating Factor Administration: A Case Report and Review of the Literature. Internal Medicine. 62(11). 1647–1652. 1 indexed citations
3.
Morita, Ken, Takashi Oyama, Kazuki Taoka, et al.. (2023). Myeloid sarcoma and pathological fracture: a case report and review of literature. International Journal of Hematology. 118(6). 745–750. 2 indexed citations
4.
Oyama, Takashi, Hideki Araoka, Daisuke Kaji, et al.. (2022). Clinical and microbiological characteristics of bacterial meningitis in umbilical cord blood transplantation recipients. International Journal of Hematology. 116(6). 966–972. 2 indexed citations
5.
Bustos, Matías A., Shigeshi Ono, Diego M. Marzese, et al.. (2017). MiR-200a Regulates CDK4/6 Inhibitor Effect by Targeting CDK6 in Metastatic Melanoma. Journal of Investigative Dermatology. 137(9). 1955–1964. 32 indexed citations
6.
Wada, T., Hiroya Takeuchi, Takahisa Yoshikawa, et al.. (2014). Successful Management of Anastomotic Leakage and Lung Fistula After Esophagectomy. The Annals of Thoracic Surgery. 97(3). 1071–1073. 7 indexed citations
7.
Hirano, Yuki, Hiroya Takeuchi, Koichi Suda, et al.. (2013). (Pro)renin receptor blocker improves survival of rats with sepsis. Journal of Surgical Research. 186(1). 269–277. 20 indexed citations
8.
Kaburagi, Takuji, Hiroya Takeuchi, Takashi Oyama, et al.. (2012). Intraoperative fluorescence lymphography using indocyanine green in a patient with chylothorax after esophagectomy: report of a case. Surgery Today. 43(2). 206–210. 36 indexed citations
9.
Yamamoto, Shu, Takashi Oyama, & Takahiro Ara. (2011). Determination of Rotational-Machine Characteristics by Performing DC Tests using Voltage-Source PWM Inverter. IEEJ Transactions on Industry Applications. 131(11). 1292–1300. 1 indexed citations
10.
Takeuchi, Hiroya, Takashi Oyama, Yoshiro Saikawa, & Yuko Kitagawa. (2011). Novel Thoracoscopic Intrathoracic Esophagogastric Anastomosis Technique for Patients with Esophageal Cancer. Journal of Laparoendoscopic & Advanced Surgical Techniques. 22(1). 88–92. 12 indexed citations
11.
Yamamoto, Shu, Takashi Oyama, Takashi Kano, & Takahiro Ara. (2010). A Method for Determining Rotational Machine Quantities from DC Tests using Voltage Source Inverter. 2010(69). 39–44. 2 indexed citations
12.
Tobinai, Kensei, Michinori Ogura, Yukio Kobayashi, et al.. (2010). Phase I study of LY2469298, an Fc‐engineered humanized anti‐CD20 antibody, in patients with relapsed or refractory follicular lymphoma. Cancer Science. 102(2). 432–438. 25 indexed citations
13.
Takahashi, Tsunehiro, Hiromasa Takaishi, Hiroya Takeuchi, et al.. (2010). Feasibility and efficacy of combination chemotherapy with S-1 and fractional Cisplatin for advanced gastric cancer.. PubMed. 30(9). 3759–62. 2 indexed citations
14.
Oyama, Takashi, et al.. (2009). Needle coke. TANSO. 2009(239). 180–183. 1 indexed citations
15.
Jin, Zhe, Takashi Nakayama, Takashi Oyama, et al.. (2008). Expression of CCL17 and CCL22 by latent membrane protein 1‐positive tumor cells in age‐related Epstein–Barr virus‐associated B‐cell lymphoproliferative disorder. Cancer Science. 99(2). 296–302. 43 indexed citations
16.
Shimoyama, Yoshie, Takashi Oyama, Naoko Asano, et al.. (2006). Senile Epstein-Barr Virus-Associated B-Cell Lymphoproliferative Disorders: a Mini Review. Journal of Clinical and Experimental Hematopathology. 46(1). 1–4. 60 indexed citations
17.
Oyama, Takashi, et al.. (1999). Charge Neutralization on Monochromatized X-ray Photoelectron Spectroscopy Analysis Using Metal Walls Mounting Method.. Hyomen Kagaku. 20(8). 530–534. 2 indexed citations
18.
19.
Kobayashi, Yuzuru, et al.. (1983). Identification of Etiological Leptospires of Weil's Disease Using Monoclonal Antibodies. Kansenshogaku zasshi. 57(10). 846–852. 2 indexed citations
20.
Kobayashi, Yuzuru, et al.. (1983). Antigenic Analysis of Japanese Encephalitis Virus Using Monoclonal Antibodies. Kansenshogaku zasshi. 57(6). 519–530. 3 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.

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