Tsutomu Hachiya

742 total citations
47 papers, 526 citations indexed

About

Tsutomu Hachiya is a scholar working on Pulmonary and Respiratory Medicine, Oncology and Epidemiology. According to data from OpenAlex, Tsutomu Hachiya has authored 47 papers receiving a total of 526 indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Pulmonary and Respiratory Medicine, 17 papers in Oncology and 10 papers in Epidemiology. Recurrent topics in Tsutomu Hachiya's work include Lung Cancer Treatments and Mutations (12 papers), Lung Cancer Research Studies (5 papers) and Lung Cancer Diagnosis and Treatment (4 papers). Tsutomu Hachiya is often cited by papers focused on Lung Cancer Treatments and Mutations (12 papers), Lung Cancer Research Studies (5 papers) and Lung Cancer Diagnosis and Treatment (4 papers). Tsutomu Hachiya collaborates with scholars based in Japan and United States. Tsutomu Hachiya's co-authors include Takayuki Honda, Keishi Kubo, Tomonobu Koizumi, Masayuki Hanaoka, Keisaku Fujimoto, Toshio Kobayashi, Takashige Miyahara, Toshihide Hayano, Hitoya Ohta and Shigeru Koyama and has published in prestigious journals such as Antimicrobial Agents and Chemotherapy, International Journal of Radiation Oncology*Biology*Physics and Cancer Science.

In The Last Decade

Tsutomu Hachiya

44 papers receiving 513 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Tsutomu Hachiya Japan 13 266 136 110 90 82 47 526
Masateru Kawabata Japan 15 288 1.1× 114 0.8× 160 1.5× 70 0.8× 22 0.3× 39 567
Petros M. Zeis Greece 12 78 0.3× 62 0.5× 60 0.5× 99 1.1× 69 0.8× 21 431
Yasuhiro Gushima Japan 10 419 1.6× 50 0.4× 149 1.4× 61 0.7× 10 0.1× 13 589
Fabiola Delcò Switzerland 18 228 0.9× 356 2.6× 156 1.4× 38 0.4× 169 2.1× 33 813
Marie F. Robert United States 6 199 0.7× 159 1.2× 89 0.8× 26 0.3× 20 0.2× 8 522
Delphine Hoton Belgium 13 258 1.0× 40 0.3× 53 0.5× 114 1.3× 13 0.2× 35 462
Chunyin Wei China 10 98 0.4× 109 0.8× 27 0.2× 112 1.2× 106 1.3× 19 403
Weiyan Yu China 6 186 0.7× 177 1.3× 214 1.9× 75 0.8× 21 0.3× 11 715
C Mahasandana Thailand 16 89 0.3× 57 0.4× 33 0.3× 56 0.6× 47 0.6× 39 579
Fuat Ekız Türkiye 13 63 0.2× 177 1.3× 251 2.3× 32 0.4× 23 0.3× 54 616

Countries citing papers authored by Tsutomu Hachiya

Since Specialization
Citations

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

Fields of papers citing papers by Tsutomu Hachiya

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tsutomu Hachiya

This figure shows the co-authorship network connecting the top 25 collaborators of Tsutomu Hachiya. A scholar is included among the top collaborators of Tsutomu Hachiya 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 Tsutomu Hachiya. Tsutomu Hachiya 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.
Tsutsui, Toshiharu, Toshihiko Agatsuma, Manabu Yamamoto, et al.. (2025). Real-world data after introduction of chemoimmunotherapy in patients with extensive-disease small cell lung cancer: A multicenter retrospective study. Respiratory Investigation. 63(5). 928–933.
2.
3.
Goto, Norihiko, Yosuke Wada, Makoto Kosaka, et al.. (2021). The usefulness of a combination of age, body mass index, and blood urea nitrogen as prognostic factors in predicting oxygen requirements in patients with coronavirus disease 2019. Journal of Infection and Chemotherapy. 27(12). 1706–1712. 2 indexed citations
4.
5.
Hachiya, Tsutomu, et al.. (2020). Gefitinib Treatment Was Unsuccessful for Central Diabetes Insipidus Due to Pituitary Metastasis of Lung Adenocarcinoma. Internal Medicine. 60(7). 1073–1076. 1 indexed citations
6.
Kobayashi, Takashi, Kazunari Tateishi, Tsutomu Hachiya, et al.. (2019). Clinical analysis of EGFR‐positive non‐small cell lung cancer patients treated with first‐line afatinib: A Nagano Lung Cancer Research Group. Thoracic Cancer. 10(5). 1078–1085. 5 indexed citations
7.
8.
Koizumi, Tomonobu, Masanori Yasuo, Kenji Tsushima, et al.. (2012). A phase II trial of erlotinib in patients with EGFR wild-type advanced non-small-cell lung cancer. Cancer Chemotherapy and Pharmacology. 69(5). 1241–1246. 36 indexed citations
9.
Komatsu, Yoshimichi, et al.. (2011). [A case of lung cancer showing marked reduction of pleural effusion by bevacizumab in combination with carboplatin and paclitaxel].. PubMed. 38(11). 1877–9. 3 indexed citations
10.
Nagata, Kazuya, et al.. (2010). . Iryo To Shakai. 20(1). 97–105. 2 indexed citations
11.
Hachiya, Tsutomu, et al.. (2004). [Antimicrobial susceptibility of Streptococcus pneumoniae, Haemophilus influenzae and Pseudomonas aeruginosa isolated in major hospitals in Nagano prefecture].. PubMed. 57(2). 157–71. 4 indexed citations
12.
Komaki, Ritsuko, Tsutomu Hachiya, Ivan Milas, et al.. (2002). Association of Ki-67, p53, and bcl-2 expression of the primary non-small-cell lung cancer lesion with brain metastatic lesion. International Journal of Radiation Oncology*Biology*Physics. 53(5). 1216–1224. 21 indexed citations
13.
Ohta, Hitoya & Tsutomu Hachiya. (2002). A case of inferior vena cava thrombosis and pulmonary embolism secondary to acute exacerbation of chronic pancreatitis: A rare finding in radionuclide venography. Annals of Nuclear Medicine. 16(2). 147–149. 19 indexed citations
14.
Kaneki, Toshimichi, Tomonobu Koizumi, Hiroshi Yamamoto, et al.. (2001). Gastric sarcoidosis--a single polypoid appearance in the involvement.. PubMed. 48(40). 1209–10. 15 indexed citations
15.
Kubo, Ken‐ichiro, Yuichiro Yamazaki, Tsutomu Hachiya, et al.. (1998). Mycobacterium avium-intracellulare Pulmonary Infection in Patients Without Known Predisposing Lung Disease. Lung. 176(6). 381–391. 42 indexed citations
16.
Kubo, Keishi, Masayuki Hanaoka, Toshihide Hayano, et al.. (1998). Inflammatory cytokines in BAL fluid and pulmonary hemodynamics in high-altitude pulmonary edema. Respiration Physiology. 111(3). 301–310. 118 indexed citations
17.
Hachiya, Tsutomu, Kazuyoshi Okada, Yoshitaka Yamazaki, et al.. (1996). [Pulmonary malignant fibrous histiocytoma presenting as hemothorax].. PubMed. 34(3). 336–40.
18.
Honda, Takayuki, et al.. (1996). Two Cases of Severe Bronchiectasis Successfully Treated with a Prolonged Course of Trimethoprim/Sulfamethoxazole.. Internal Medicine. 35(12). 979–983. 7 indexed citations
19.
Honda, Takayuki, et al.. (1995). Invasive Thymoma with Hypogammaglobulinemia Spreading within the Bronchial Lumen. Respiration. 62(5). 294–296. 10 indexed citations
20.
Honda, Takayuki, et al.. (1995). Carbohydrate Histochemistry of the Apical Membranes of Non-ciliated Bronchiolar Cells and Type II Pneumocytes in Six Mammalian Species.. ACTA HISTOCHEMICA ET CYTOCHEMICA. 28(2). 107–117. 7 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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