Ichiro Koyama

3.4k total citations · 2 hit papers
90 papers, 2.7k citations indexed

About

Ichiro Koyama is a scholar working on Transplantation, Surgery and Radiation. According to data from OpenAlex, Ichiro Koyama has authored 90 papers receiving a total of 2.7k indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Transplantation, 27 papers in Surgery and 17 papers in Radiation. Recurrent topics in Ichiro Koyama's work include Renal Transplantation Outcomes and Treatments (28 papers), Organ Transplantation Techniques and Outcomes (22 papers) and Advanced X-ray Imaging Techniques (17 papers). Ichiro Koyama is often cited by papers focused on Renal Transplantation Outcomes and Treatments (28 papers), Organ Transplantation Techniques and Outcomes (22 papers) and Advanced X-ray Imaging Techniques (17 papers). Ichiro Koyama collaborates with scholars based in Japan, United States and Belgium. Ichiro Koyama's co-authors include Atsushi Momose, Yoshio Suzuki, Shinya Kawamoto, Kengo Takai, Youichi Murakami, D. Gibbs, J. P. Hill, Y. Endoh, Hiroshi Kawata and T. Arima and has published in prestigious journals such as Physical Review Letters, SHILAP Revista de lepidopterología and Applied Physics Letters.

In The Last Decade

Ichiro Koyama

87 papers receiving 2.6k citations

Hit Papers

Demonstration of X-Ray Talbot Interferometry 1998 2026 2007 2016 2003 1998 250 500 750
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.

  1. Demonstration of X-Ray Talbot Interferometry
    2003 762 citations Atsushi Momose, Ichiro Koyama et al. profile →
  2. Resonant X-Ray Scattering from Orbital Ordering inLaMnO3
    1998 491 citations Youichi Murakami, Ichiro Koyama et al. profile →

Peers

Ichiro Koyama
Maximilian Schmid Austria
J. L. Smith United States
Young‐June Kim United States
Christian Brendel Germany
Julia M. Phillips United States
C. Corbel France
Magnus Nord Sweden
K. Kuwahara Japan
Niall Holmes United States
Patrick Kung United States
Maximilian Schmid Austria
Ichiro Koyama
Citations per year, relative to Ichiro Koyama Ichiro Koyama (= 1×) peers Maximilian Schmid

Countries citing papers authored by Ichiro Koyama

Since Specialization
Citations

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

Fields of papers citing papers by Ichiro Koyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ichiro Koyama

This figure shows the co-authorship network connecting the top 25 collaborators of Ichiro Koyama. A scholar is included among the top collaborators of Ichiro Koyama 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 Ichiro Koyama. Ichiro Koyama 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.
Iwadoh, Kazuhiro, Ichiro Nakajima, Ichiro Koyama, Kosaku Nitta, & Shohei Fuchinoue. (2020). Preoperative assessment system for hand-assisted laparoscopic donor nephrectomy by discriminant analysis. PLoS ONE. 15(4). e0227546–e0227546. 1 indexed citations
2.
Tomita, Yusuke, Kazuhiro Iwadoh, Yojiro Kato, et al.. (2019). Single fixed low-dose rituximab as induction therapy suppresses de novo donor-specific anti-HLA antibody production in ABO compatible living kidney transplant recipients. PLoS ONE. 14(10). e0224203–e0224203. 8 indexed citations
3.
MASAKI, NORIYUKI, Kazuhiro Iwadoh, Akiko Kondo, et al.. (2018). Causes of Ineligibility for Recipients in Living Kidney Transplantation. Transplantation Proceedings. 50(4). 978–981. 2 indexed citations
4.
5.
Iwadoh, Kazuhiro, Hajime Shirai, Akihito Sannomiya, et al.. (2012). Long-Term Impact of Hypertension on Renal Allografts. Transplantation Proceedings. 44(3). 629–631. 1 indexed citations
6.
Yamada, Yohei, S Bosković, Akihiro Aoyama, et al.. (2011). Overcoming Memory T-Cell Responses for Induction of Delayed Tolerance in Nonhuman Primates. American Journal of Transplantation. 12(2). 330–340. 77 indexed citations
7.
Taneda, Sekiko, Kazuho Honda, Shigeru Horita, et al.. (2008). Light Chain Deposition Disease After Renal Transplantation. American Journal of Kidney Diseases. 52(3). 621–625. 14 indexed citations
8.
Kawai, Tatsuo, S. Wee, O. Nadazdin, et al.. (2006). Monitoring Antidonor Alloantibodies as a Predictive Assay for Renal Allograft Tolerance/Long-term Observations in Nonhuman Primates. Transplantation. 82(6). 819–825. 26 indexed citations
9.
Kawai, Tatsuo, Hiroshi Sogawa, Svetlan Boskovic, et al.. (2004). CD154 Blockade for Induction of Mixed Chimerism and Prolonged Renal Allograft Survival in Nonhuman Primates. American Journal of Transplantation. 4(9). 1391–1398. 162 indexed citations
10.
Momose, Atsushi, Tohoru Takeda, Akio Yoneyama, Ichiro Koyama, & Yuji Itai. (2002). Phase-Contrast X-Ray Imaging Using an X-Ray Interferometer for Biological Imaging. 17. 13 indexed citations
11.
Momose, Atsushi, Ichiro Koyama, Tohoru Takeda, Yuji Itai, & Akio Yoneyama. (2002). Phase-contrast X-ray imaging using an X-ray interferometer for biological imaging. Analytical Sciences. 17. 5 indexed citations
12.
Yoneyama, Akio, Atsushi Momose, Ichiro Koyama, et al.. (2002). Large-area phase-contrast X-ray imaging using a two-crystal X-ray interferometer. Journal of Synchrotron Radiation. 9(5). 277–281. 26 indexed citations
13.
Ishida, Hideki, Tetsuzo Agishi, Ichiro Koyama, et al.. (2001). Hemodialysis Paradox: Survey on the Incidence Rate of Hepatocellular Carcinoma in Antihepatitis Virus C‐Antibody‐Positive Chronic Hemodialysis Patients. Artificial Organs. 25(1). 58–60. 13 indexed citations
14.
Ishida, Hideki, Ichiro Koyama, Tokihiko Sawada, et al.. (2000). CLINICAL UTILITY OF MONITORING SIALYL LEWIS X (CD15S) ANTIGEN ON PERIPHERAL LYMPHOCYTES FOR THE DIAGNOSIS AND TREATMENT OF REJECTION AFTER RENAL TRANSPLANTATION 1. Transplantation. 69(1). 59–59. 5 indexed citations
15.
Wakabayashi, Yusuke, Youichi Murakami, Ichiro Koyama, et al.. (2000). Orbital and Charge Ordering in LaSr 2Mn 2O 7 Observed by Resonant X-Ray Scattering. Journal of the Physical Society of Japan. 69(9). 2731–2734. 25 indexed citations
16.
Koyama, Ichiro, Tokihiko Sawada, Toru Murakami, et al.. (2000). ANTI-AB TITER CHANGES IN PATIENTS WITH ABO INCOMPATIBILITY AFTER LIVING RELATED KIDNEY TRANSPLANTATIONS. Transplantation. 70(4). 681–685. 79 indexed citations
17.
Ishida, H., Shūichi Satō, Akihito Sannomiya, et al.. (2000). Coagulopathy after bilirubin adsorption in a living-related partial liver transplant recipient. Transplantation Proceedings. 32(7). 2241–2242. 4 indexed citations
18.
Tojimbara, T, Masaaki Kimikawa, I Nakajima, et al.. (1999). Oral vs intravenous tacrolimus-based induction therapy in renal transplantation. Transplantation Proceedings. 31(7). 2763–2764. 3 indexed citations
19.
20.
Takahashi, Noboru, et al.. (1991). OCCUPATIONAL THYROID DOSE DURING CARDIOVASCULAR EXAMINATIONS. Japanese Journal of Radiological Technology. 47(5). 721–727.

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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