N. Yamada

2.1k total citations
122 papers, 1.5k citations indexed

About

N. Yamada is a scholar working on Hepatology, Epidemiology and Condensed Matter Physics. According to data from OpenAlex, N. Yamada has authored 122 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Hepatology, 33 papers in Epidemiology and 25 papers in Condensed Matter Physics. Recurrent topics in N. Yamada's work include Hepatitis C virus research (31 papers), Hepatitis B Virus Studies (31 papers) and Liver Disease Diagnosis and Treatment (24 papers). N. Yamada is often cited by papers focused on Hepatitis C virus research (31 papers), Hepatitis B Virus Studies (31 papers) and Liver Disease Diagnosis and Treatment (24 papers). N. Yamada collaborates with scholars based in Japan, United States and Belgium. N. Yamada's co-authors include Tetsuya Takeuchi, Y. Kaneko, Isamu Akasaki, Hiroshi Amano, Shih-Yuan Wang, Hiroshi Nakajima, Yoshio Sawasaki, Takeshi Sawada, Takanobu Kato and Asako Murayama and has published in prestigious journals such as Physical Review Letters, Advanced Materials and Nature Communications.

In The Last Decade

N. Yamada

114 papers receiving 1.5k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
N. Yamada Japan 21 425 274 269 240 239 122 1.5k
Tadashi Tsukamoto Japan 36 261 0.6× 853 3.1× 796 3.0× 891 3.7× 77 0.3× 247 4.0k
Satoshi Iida Japan 23 70 0.2× 339 1.2× 257 1.0× 186 0.8× 114 0.5× 100 2.1k
A. G. de Oliveira Brazil 23 69 0.2× 502 1.8× 217 0.8× 135 0.6× 289 1.2× 114 2.0k
H. Yamamoto Japan 22 229 0.5× 229 0.8× 55 0.2× 34 0.1× 549 2.3× 62 1.5k
Teruo Suzuki Japan 21 385 0.9× 168 0.6× 43 0.2× 26 0.1× 94 0.4× 94 1.4k
Hiroaki Sakai Japan 30 50 0.1× 501 1.8× 146 0.5× 138 0.6× 180 0.8× 117 3.2k
Masaki Kato Japan 29 1.2k 2.9× 1.8k 6.5× 175 0.7× 121 0.5× 269 1.1× 118 4.1k
Ana Paula Brazil 23 61 0.1× 206 0.8× 109 0.4× 89 0.4× 711 3.0× 96 2.2k
Kentaro Ueda Japan 30 678 1.6× 464 1.7× 98 0.4× 69 0.3× 536 2.2× 124 2.6k
Masashi Yamamoto Japan 20 116 0.3× 543 2.0× 95 0.4× 49 0.2× 56 0.2× 71 1.3k

Countries citing papers authored by N. Yamada

Since Specialization
Citations

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

Fields of papers citing papers by N. Yamada

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of N. Yamada

This figure shows the co-authorship network connecting the top 25 collaborators of N. Yamada. A scholar is included among the top collaborators of N. Yamada 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 N. Yamada. N. Yamada 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.
Murayama, Asako, N. Yamada, Masaaki Toyama, et al.. (2025). A synonymous mutation in the preS2 region enhances production of infectious hepatitis B virus. Virology. 612. 110692–110692. 1 indexed citations
2.
3.
Momose, Haruka, Asako Murayama, N. Yamada, et al.. (2023). Performance evaluation of in vitro diagnostic kits for hepatitis B virus infection using the regional reference panel of Japan. Virology Journal. 20(1). 93–93. 6 indexed citations
4.
Murayama, Asako, Megumi Murata, Tomoko Kiyohara, et al.. (2022). Neutralization of hepatitis B virus with vaccine-escape mutations by hepatitis B vaccine with large-HBs antigen. Nature Communications. 13(1). 5207–5207. 17 indexed citations
5.
Honda, Takashi, N. Yamada, Asako Murayama, et al.. (2021). Amino Acid Polymorphism in Hepatitis B Virus Associated With Functional Cure. Cellular and Molecular Gastroenterology and Hepatology. 12(5). 1583–1598. 7 indexed citations
6.
Shiina, Masaaki, N. Yamada, Ryuichi Sugiyama, et al.. (2019). Hepatitis B Virus Genotype-Dependent Vulnerability of Infected Cells to Immune Reaction in the Early Phase of Infection. Frontiers in Microbiology. 10. 2427–2427.
7.
Yamada, N.. (2014). Acute hepatitis B of genotype H resulting in persistent infection. World Journal of Gastroenterology. 20(11). 3044–3044. 7 indexed citations
8.
9.
Okuse, Chiaki, Hiroshi Yotsuyanagi, N. Yamada, et al.. (2011). Evaluation of usefulness of hepatitis B vaccination at St. Marianna University School of Medicine Hospital and related facilities. Kanzo. 52(2). 87–93. 3 indexed citations
10.
Takahashi, Hideaki, Chiaki Okuse, Hiroshi Yotsuyanagi, et al.. (2011). Usefulness of quantitative HBsAg in outcome prediction of acute hepatitis B. Kanzo. 52(6). 380–382. 1 indexed citations
11.
Yamada, N., Hiroshi Yotsuyanagi, Chiaki Okuse, et al.. (2010). Duration of HBs antigenemia in patients with acute hepatitis B. Kanzo. 51(9). 534–535. 3 indexed citations
12.
Ikeda, Hiroki, Michihiro Suzuki, Chiaki Okuse, et al.. (2009). Short‐term prolongation of pegylated interferon and ribavirin therapy for genotype 1b chronic hepatitis C patients with early viral response. Hepatology Research. 39(8). 753–759. 9 indexed citations
13.
Watanabe, Yoshiyuki, Takahiro Nakazawa, N. Yamada, et al.. (2009). Identification of the Distal Dural Ring with Use of Fusion Images with 3D-MR Cisternography and MR Angiography: Application to Paraclinoid Aneurysms. American Journal of Neuroradiology. 30(4). 845–850. 21 indexed citations
14.
Yamada, N., Hiroshi Yotsuyanagi, Chiaki Okuse, et al.. (2008). Epidemiology and clinical features of acute hepatitis B in Japan -Analysis with an emphasis on genotype A HBV-. Kanzo. 49(12). 553–559. 13 indexed citations
15.
Tamura, Minoru, et al.. (2008). National HIV prevalence surveillance among TB patients through periodic surveys: experience in Cambodia.. PubMed. 12(3 Suppl 1). 20–5. 6 indexed citations
16.
Togashi, Hitoshi, Haruhide Shinzawa, Takehiro Ogata, et al.. (1998). Spatiotemporal Measurement of Free Radical Elimination in the Abdomen Using an In Vivo ESR-CT Imaging System. Free Radical Biology and Medicine. 25(1). 1–8. 21 indexed citations
17.
Tsunoda, Masakiyo, M. Takahashi, N. Yamada, T. Wakiyama, & T. Shiba. (1996). Influence of Metal Seed Layers on Initial Film Growth.. Journal of the Magnetics Society of Japan. 20(2). 321–324. 1 indexed citations
18.
Nakagawa, Shigeru, N. Yamada, Nobuo Mikoshiba, & D. E. Mars. (1995). Second-harmonic generation from GaAs/AlAs vertical cavity. Applied Physics Letters. 66(17). 2159–2161. 31 indexed citations
19.
Nagoshi, Masayasu, Yasuo Fukuda, N. Yamada, et al.. (1992). Valence states of praseodymium in Y-Ba-Cu oxides studied by x-ray-photoelectron spectroscopy. Physical review. B, Condensed matter. 46(13). 8635–8637. 18 indexed citations
20.
Shinzawa, Haruhide, Kyoichi Ono, Hitoshi Togashi, et al.. (1991). [Changes of Cu, Zn-SOD and LPO in the regenerating liver after partial hepatectomy--effect of coenzyme Q10 administration].. PubMed. 88(5). 1208–15. 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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