Koichi Yamazaki

5.9k total citations · 1 hit paper
85 papers, 4.7k citations indexed

About

Koichi Yamazaki is a scholar working on Pulmonary and Respiratory Medicine, Oncology and Immunology. According to data from OpenAlex, Koichi Yamazaki has authored 85 papers receiving a total of 4.7k indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Pulmonary and Respiratory Medicine, 24 papers in Oncology and 17 papers in Immunology. Recurrent topics in Koichi Yamazaki's work include Lung Cancer Diagnosis and Treatment (18 papers), Lung Cancer Treatments and Mutations (16 papers) and Immunotherapy and Immune Responses (15 papers). Koichi Yamazaki is often cited by papers focused on Lung Cancer Diagnosis and Treatment (18 papers), Lung Cancer Treatments and Mutations (16 papers) and Immunotherapy and Immune Responses (15 papers). Koichi Yamazaki collaborates with scholars based in Japan, United States and South Korea. Koichi Yamazaki's co-authors include Masaharu Nishimura, Hirotoshi Dosaka‐Akita, Ichiro Kinoshita, Jun Konishi, Naofumi Shinagawa, Eiki Kikuchi, Satoshi Oizumi, Shigeaki Ogura, Miyuki Azuma and Hajime Asahina and has published in prestigious journals such as Journal of Clinical Oncology, The Journal of Immunology and American Journal of Respiratory and Critical Care Medicine.

In The Last Decade

Koichi Yamazaki

85 papers receiving 4.6k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

B7-H1 Expression on Non-Small Cell Lung Cancer Cells and Its Relationship with Tumor-Infiltrating Lymphocytes and Their PD-1 Expression

2004 589 citations Jun Konishi, Koichi Yamazaki et al. profile →

Peers

Koichi Yamazaki

PRM

ONCOL

IMMUN

RADIA

RNMI

José M. López-Picazo Spain

Birgit Weynand Belgium

Satoshi Oizumi Japan

Arnold M. Markoe United States

Sung‐Hsin Kuo Taiwan

Abraham Chachoua United States

Jean Roy Canada

Tetsuo Akimoto Japan

Javier F. Torres–Roca United States

Chris R. Kelsey United States

José M. López-Picazo Spain

Koichi Yamazaki

1.3k ×0.5

PRM

1.4k ×0.7

ONCOL

570 ×0.6

IMMUN

477 ×0.6

RADIA

239 ×0.3

RNMI

Citations per year, relative to Koichi Yamazaki Koichi Yamazaki (= 1×) peers José M. López-Picazo

Countries citing papers authored by Koichi Yamazaki

Since Specialization

Citations

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

Fields of papers citing papers by Koichi Yamazaki

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koichi Yamazaki

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

All Works

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20 of 20 papers shown

Inoue, Akira, Kunihiko Kobayashi, Kazuhiro Usui, et al.. (2009). First-Line Gefitinib for Patients With Advanced Non–Small-Cell Lung Cancer Harboring Epidermal Growth Factor Receptor Mutations Without Indication for Chemotherapy. Journal of Clinical Oncology. 27(9). 1394–1400. 369 indexed citations

Inoue, Akira, Shunichi Sugawara, Koichi Yamazaki, et al.. (2008). Randomized Phase II Trial Comparing Amrubicin With Topotecan in Patients With Previously Treated Small-Cell Lung Cancer: North Japan Lung Cancer Study Group Trial 0402. Journal of Clinical Oncology. 26(33). 5401–5406. 188 indexed citations

Yokouchi, Hiroshi, Koichi Yamazaki, Kenji Chamoto, et al.. (2007). A5-05: Anti-OX40 monoclonal antibody therapy in combination with radiotherapy results in powerful therapeutic antitumor immunity to murine lung cancer. Journal of Thoracic Oncology. 2(8). S324–S325. 3 indexed citations

Yamazaki, Koichi, Kanako Kubota, Tomoo Itoh, et al.. (2007). Histopathologic Consideration of Fiducial Gold Markers Inserted for Real-Time Tumor-Tracking Radiotherapy Against Lung Cancer. International Journal of Radiation Oncology*Biology*Physics. 70(2). 382–384. 14 indexed citations

Onimaru, Rikiya, Masaharu Fujino, Koichi Yamazaki, et al.. (2007). Steep Dose–Response Relationship for Stage I Non–Small-Cell Lung Cancer Using Hypofractionated High-Dose Irradiation by Real-Time Tumor-Tracking Radiotherapy. International Journal of Radiation Oncology*Biology*Physics. 70(2). 374–381. 125 indexed citations

Kikuchi, Eiki, Koichi Yamazaki, Toshihiko Torigoe, et al.. (2007). HLA class I antigen expression is associated with a favorable prognosis in early stage non‐small cell lung cancer. Cancer Science. 98(9). 1424–1430. 91 indexed citations

Yokouchi, Hiroshi, Koichi Yamazaki, Ichiro Kinoshita, et al.. (2007). Clinical benefit of readministration of gefitinib for initial gefitinib-responders with non-small cell lung cancer. BMC Cancer. 7(1). 51–51. 65 indexed citations

Odajima, Nao, Koichi Yamazaki, Tomoko Betsuyaku, & Masaharu Nishimura. (2005). A Case of Squamous Cell Carcinoma of the Lung Preceded by Pulmonary Aspergillosis. Haigan. 45(2). 145–150. 2 indexed citations

Hashimoto, Takayuki, Hiroki Shirato, Mototsugu Kato, et al.. (2005). Real-time monitoring of a digestive tract marker to reduce adverse effects of moving organs at risk (OAR) in radiotherapy for thoracic and abdominal tumors. International Journal of Radiation Oncology*Biology*Physics. 61(5). 1559–1564. 55 indexed citations

10.

Yoshida, Takayuki, Toshiyuki Harada, Satoshi Fuke, et al.. (2004). Lung Adenocarcinoma Presenting With Enlarged and Multiloculated Cystic Lesions Over 2 Years. Respiratory Care. 49(12). 1522–1524. 22 indexed citations

11.

Nakamura, Yuichi, Koichi Yamazaki, Satoshi Oizumi, et al.. (2004). Expression of RCAS1 in human gastric carcinoma: A potential mechanism of immune escape. Cancer Science. 95(3). 260–265. 32 indexed citations

12.

Aoe, Keisuke, Akio Hiraki, Tadashi Maeda, et al.. (2004). Soluble Receptor-Binding Cancer Antigen Expressed on SiSo Cells in Pleural Fluid. CHEST Journal. 126(4). 1195–1197. 11 indexed citations

13.

Yamazaki, Koichi, Shigeaki Ogura, Akitoshi Ishizaka, Toshinari Oh-hara, & Masaharu Nishimura. (2003). Bronchoscopic Microsampling Method for Measuring Drug Concentration in Epithelial Lining Fluid. American Journal of Respiratory and Critical Care Medicine. 168(11). 1304–1307. 63 indexed citations

14.

Wakabayashi, Osamu, Koichi Yamazaki, Satoshi Oizumi, et al.. (2003). CD4⁺ T cells in cancer stroma, not CD8⁺ T cells in cancer cell nests, are associated with favorable prognosis in human non‐small cell lung cancers. Cancer Science. 94(11). 1003–1009. 208 indexed citations

15.

Harada, Toshiyuki, Shigeaki Ogura, Koichi Yamazaki, et al.. (2003). Predictive value of expression of P53, Bcl‐2 and lung resistance‐related protein for response to chemotherapy in non‐small cell lung cancers. Cancer Science. 94(4). 394–399. 49 indexed citations

16.

Harada, Toshiyuki, Hiroki Shirato, Shigeaki Ogura, et al.. (2002). Real‐time tumor‐tracking radiation therapy for lung carcinoma by the aid of insertion of a gold marker using bronchofiberscopy. Cancer. 95(8). 1720–1727. 114 indexed citations

17.

Yamazaki, Koichi, Yasushi Furuta, Katsuji Marukawa, et al.. (2002). Inverted Papilloma of the Nasal Cavity Presenting with Massive Amounts of Squamous Metaplastic Cells in Sputum. Acta Cytologica. 46(3). 596–600. 1 indexed citations

18.

Štrbo, Nataša, Koichi Yamazaki, Kelvin H. Lee, Daniel Rukavina, & Eckhard R. Podack. (2002). Heat Shock Fusion Protein gp96‐Ig Mediates Strong CD8 CTL Expansion in vivo. American Journal of Reproductive Immunology. 48(4). 220–225. 18 indexed citations

19.

Okamoto, Yoshihiro, Koichi Yamazaki, Toshiyuki Harada, et al.. (2000). Changes in the Proportions of Histologic Types and Clinical Features of Primary Lung Cancer from the 1980s to the 1990s.. Haigan. 40(6). 609–614. 1 indexed citations

20.

Kojima, Tetsuya, Koichi Yamazaki, Yoshihiro Okamoto, et al.. (2000). Clinical Features of Primary Lung Cancer According to Age.. Haigan. 40(7). 751–757. 1 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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