Kohei Ishikawa

414 total citations
9 papers, 304 citations indexed

About

Kohei Ishikawa is a scholar working on Cognitive Neuroscience, Experimental and Cognitive Psychology and Surgery. According to data from OpenAlex, Kohei Ishikawa has authored 9 papers receiving a total of 304 indexed citations (citations by other indexed papers that have themselves been cited), including 4 papers in Cognitive Neuroscience, 4 papers in Experimental and Cognitive Psychology and 2 papers in Surgery. Recurrent topics in Kohei Ishikawa's work include Sleep and related disorders (4 papers), Sleep and Wakefulness Research (4 papers) and Disaster Response and Management (2 papers). Kohei Ishikawa is often cited by papers focused on Sleep and related disorders (4 papers), Sleep and Wakefulness Research (4 papers) and Disaster Response and Management (2 papers). Kohei Ishikawa collaborates with scholars based in Japan, United States and United Kingdom. Kohei Ishikawa's co-authors include Naoki Kubota, Yuichi Inoue, Margaret Moline, Jane Yardley, Mikko Kärppä, Carlos Perdomo, Kate Pinner, Gleb Filippov, Gary Zammit and Richard S. Finn and has published in prestigious journals such as Journal of Clinical Oncology, SLEEP and Sleep Medicine.

In The Last Decade

Kohei Ishikawa

8 papers receiving 302 citations

Peers

Kohei Ishikawa

ECP

CN

EAS

HEPAT

ONCOL

Koetsu Inoue Japan

Masahide Takii Japan

Rosario Arena Italy

Stefanie Kalus Germany

Sophie J. Crinion Canada

Aung Htoo United States

Nesreen Elsayed Morsy Egypt

Brian J. Wentworth United States

Fahad Mukhtar United States

Simone Bianco Italy

Koetsu Inoue Japan

Kohei Ishikawa

109 ×0.7

ECP

29 ×0.2

CN

106 ×1.1

EAS

14 ×0.2

HEPAT

52 ×0.8

ONCOL

Citations per year, relative to Kohei Ishikawa Kohei Ishikawa (= 1×) peers Koetsu Inoue

Countries citing papers authored by Kohei Ishikawa

Since Specialization

Citations

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

Fields of papers citing papers by Kohei Ishikawa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kohei Ishikawa

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

All Works

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9 of 9 papers shown

1.

Cheng, Yongjing, Dongmei Guo, Dongzhou Liu, et al.. (2025). Efficacy and Safety of Dotinurad Versus Febuxostat for the Treatment of Gout: A Randomized, Multicenter, Double‐Blind, Phase 3 Trial in China. Arthritis & Rheumatology. 77(12). 1757–1766.

2.

Nishida, Takuji, Sang Kun Lee, Yushi Inoue, et al.. (2023). Long‐term efficacy and safety of adjunctive perampanel in patients from the Asia‐Pacific region with refractory focal‐onset seizures in Study 335 open‐label extension. Epilepsia Open. 9(2). 501–512. 2 indexed citations

3.

Inoue, Yuichi, Naoki Kubota, Michinori Koebis, et al.. (2022). Comparison of the treatment effectiveness between lemborexant and zolpidem tartrate extended-release for insomnia disorder subtypes defined based on polysomnographic findings. Journal of Clinical Sleep Medicine. 19(3). 519–528. 10 indexed citations

4.

Inoue, Yuichi, Takeshi Watanabe, Kohei Ishikawa, et al.. (2021). Efficacy and safety of lemborexant in adults with insomnia: comparing Japanese and non-Japanese subgroups from the global, phase 3, randomized, double-blind, placebo-controlled SUNRISE 2 study. Journal of Clinical Sleep Medicine. 17(5). 1067–1074. 6 indexed citations

5.

Yardley, Jane, Mikko Kärppä, Yuichi Inoue, et al.. (2021). Long-term effectiveness and safety of lemborexant in adults with insomnia disorder: results from a phase 3 randomized clinical trial. Sleep Medicine. 80. 333–342. 53 indexed citations

6.

Kärppä, Mikko, Jane Yardley, Kate Pinner, et al.. (2020). Long-term efficacy and tolerability of lemborexant compared with placebo in adults with insomnia disorder: results from the phase 3 randomized clinical trial SUNRISE 2. SLEEP. 43(9). 113 indexed citations

7.

Ikeda, Masafumi, Max W. Sung, Masatoshi Kudo, et al.. (2018). A phase 1b trial of lenvatinib (LEN) plus pembrolizumab (PEM) in patients (pts) with unresectable hepatocellular carcinoma (uHCC).. Journal of Clinical Oncology. 36(15_suppl). 4076–4076. 104 indexed citations

8.

Ishikawa, Kohei, Kazuhiko Omori, Hiromichi Ohsaka, et al.. (2016). A system of delivering medical staff members by helicopter to manage severely wounded patients in an area where medical resources are limited. Acute Medicine & Surgery. 4(1). 89–92. 14 indexed citations

9.

Inoue, Yoshiaki, Tetsuya Hoshino, Yuki Nakamura, et al.. (2015). Utility of blood lactate level in triage. Acute Medicine & Surgery. 3(2). 101–106. 2 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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