Jun Koyama

6.9k total citations · 1 hit paper
179 papers, 5.0k citations indexed

About

Jun Koyama is a scholar working on Electrical and Electronic Engineering, Cardiology and Cardiovascular Medicine and Surgery. According to data from OpenAlex, Jun Koyama has authored 179 papers receiving a total of 5.0k indexed citations (citations by other indexed papers that have themselves been cited), including 65 papers in Electrical and Electronic Engineering, 58 papers in Cardiology and Cardiovascular Medicine and 38 papers in Surgery. Recurrent topics in Jun Koyama's work include Thin-Film Transistor Technologies (53 papers), Amyloidosis: Diagnosis, Treatment, Outcomes (27 papers) and CCD and CMOS Imaging Sensors (24 papers). Jun Koyama is often cited by papers focused on Thin-Film Transistor Technologies (53 papers), Amyloidosis: Diagnosis, Treatment, Outcomes (27 papers) and CCD and CMOS Imaging Sensors (24 papers). Jun Koyama collaborates with scholars based in Japan, United States and Switzerland. Jun Koyama's co-authors include Rodney H. Falk, Uichi Ikeda, Shunpei Yamazaki, Shu‐ichi Ikeda, Atsushi Izawa, Masafumi Takahashi, Yuichiro Kashima, Masahide Yazaki, Yoshiki Sekijima and Jun Nakayama and has published in prestigious journals such as Circulation, SHILAP Revista de lepidopterología and Journal of the American College of Cardiology.

In The Last Decade

Jun Koyama

177 papers receiving 4.9k 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.

Inflammasome Activation of Cardiac Fibroblasts Is Essential for Myocardial Ischemia/Reperfusion Injury

2011 721 citations Masafumi Takahashi, Yuichiro Kashima et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jun Koyama Japan	35	1.9k	1.7k	1.2k	825	630	179	5.0k
Hisao Ikeda Japan	39	2.7k 1.4×	1.9k 1.1×	317 0.3×	1.6k 2.0×	144 0.2×	160	6.9k
Phillip C. Yang United States	41	1.8k 0.9×	810 0.5×	95 0.1×	1.3k 1.6×	117 0.2×	147	4.6k
Pierre‐Louis Tharaux France	40	1.4k 0.7×	916 0.5×	74 0.1×	528 0.6×	955 1.5×	123	4.8k
Haibing Peng United States	29	1.1k 0.6×	565 0.3×	939 0.8×	554 0.7×	39 0.1×	60	5.6k
David A. Bull United States	36	1.6k 0.8×	1.1k 0.6×	99 0.1×	1.8k 2.2×	134 0.2×	153	4.8k
Koji Obata Japan	30	633 0.3×	930 0.6×	546 0.5×	655 0.8×	52 0.1×	118	2.8k
Ken Saito Japan	36	2.1k 1.1×	808 0.5×	116 0.1×	1.2k 1.4×	87 0.1×	224	5.2k
Stefan E. Hardt Germany	32	2.1k 1.1×	1.8k 1.1×	48 0.0×	711 0.9×	313 0.5×	91	4.2k
Song Rong Germany	39	1.5k 0.8×	312 0.2×	69 0.1×	997 1.2×	1.2k 1.9×	146	5.1k

Countries citing papers authored by Jun Koyama

Since Specialization

Citations

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

Fields of papers citing papers by Jun Koyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jun Koyama

This figure shows the co-authorship network connecting the top 25 collaborators of Jun Koyama. A scholar is included among the top collaborators of Jun 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 Jun Koyama. Jun Koyama 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

Ueki, Yasushi, Takashi Miura, Masatoshi Minamisawa, et al.. (2016). The usefulness of brachial-ankle pulse wave velocity in predicting long-term cardiovascular events in younger patients. Heart and Vessels. 32(6). 660–667. 18 indexed citations

Sekijima, Yoshiki, Kana Tojo, Hiroshi Morita, Jun Koyama, & Shu‐ichi Ikeda. (2015). Safety and efficacy of long-term diflunisal administration in hereditary transthyretin (ATTR) amyloidosis. Amyloid. 22(2). 79–83. 100 indexed citations

Miura, Takashi, Atsushi Izawa, Hirohiko Motoki, et al.. (2015). Clinical Impact of Rapid Reduction of Low-Density Lipoprotein Cholesterol Level on Long-Term Outcome of Acute Myocardial Infarction in the Statin Era: Subanalysis of the ALPS-AMI Study. PLoS ONE. 10(6). e0127835–e0127835. 9 indexed citations

Gautam, Milan, Atsushi Izawa, Tatsuya Saigusa, et al.. (2014). The Traditional Japanese Medicine (Kampo) Boiogito has a Dual Benefit in Cardiorenal Syndrome : A Pilot Observational Study. 62(2). 89–97. 2 indexed citations

Minamisawa, Masatoshi, Hirohiko Motoki, Yuichiro Kashima, et al.. (2014). INCREMENTAL PROGNOSTIC VALUE OF AMBULATORY BLOOD PRESSURE MONITORING FOR CARDIOVASCULAR EVENTS IN PATIENTS WITH ACUTE MYOCARDIAL INFARCTION: ALPS AMI SUBANALYSIS. Journal of the American College of Cardiology. 63(12). A1443–A1443. 2 indexed citations

Takeuchi, Takahiro, Takeshi Tomita, Hiroki Kasai, et al.. (2014). A young patient with atypical type‐B Wolff–Parkinson–White syndrome accompanied by left ventricular dysfunction. Journal of Arrhythmia. 31(1). 50–54. 7 indexed citations

Sekijima, Yoshiki, Kana Tojo, Hiroshi Morita, et al.. (2013). Safety and Efficacy of Long-Term Diflunisal Administration in Familial Amyloid Polyneuropathy (PD1.009). Neurology. 80(7_supplement). 1 indexed citations

Minamisawa, Masatoshi, Jun Koyama, Kazunori Aizawa, et al.. (2013). QUANTITATIVE ANALYSIS OF ENDOCARDIAL AND EPICARDIAL LEFT VENTRICULAR MYOCARDIAL DEFORMATION IN PATIENTS WITH CARDIAC AMYLOIDOSIS. Journal of the American College of Cardiology. 61(10). E1029–E1029. 1 indexed citations

Tamura, Hikaru, Yasuyoshi Kurokawa, Takayuki Ikeda, et al.. (2011). Electronic global shutter CMOS image sensor using oxide semiconductor FET with extremely low off-state current. Symposium on VLSI Technology. 174–175. 10 indexed citations

10.

Miyake, Hiroyuki, Miyuki Sasaki, Satoshi Seo, et al.. (2010). 18.3: Low Power 3.4inch Quarter High Definition OLED Display Using InGaZnOxide TFTs and White Tandem OLED. SID Symposium Digest of Technical Papers. 41(1). 253–256. 20 indexed citations

11.

Nishi, Takeshi, Akio Yamashita, Daisuke Kubota, et al.. (2010). 7.3: Development of 3.4in. QHD LCD Having BluePhase LC and OxideSemiconductor TFTs. SID Symposium Digest of Technical Papers. 41(1). 84–86. 3 indexed citations

12.

Nishi, Takeshi, Kengo Akimoto, Jun Koyama, et al.. (2010). P‐143: Possibility of Reflective LC Display Using Oxide Semiconductor TFTs as Electronic Paper Display. SID Symposium Digest of Technical Papers. 41(1). 1685–1688. 15 indexed citations

13.

Tsubuku, Masashi, et al.. (2010). 76.1: High Aperture Ratio LCD Display using In‐Ga‐Zn‐Oxide TFTs without Storage Capacitor. SID Symposium Digest of Technical Papers. 41(1). 1128–1131. 13 indexed citations

14.

Hioki, Hirofumi, Atsushi Izawa, Takashi Miura, et al.. (2010). Dynamic left ventricular outflow tract obstruction due to anemia in a 71-year-old patient with sigmoid septum. Journal of Cardiology Cases. 1(3). e144–e146. 6 indexed citations

15.

Kumazaki, Setsuo, Jun Koyama, Kazunori Aizawa, et al.. (2010). Effect of graft adaptation of the internal mammary artery on longitudinal phasic blood flow velocity characteristics after surgery. Heart and Vessels. 25(6). 515–521. 3 indexed citations

16.

Nakamura, Akinori, Kunihiro Yoshida, Kazuhiro Fukushima, et al.. (2008). Follow-up of three patients with a large in-frame deletion of exons 45–55 in the Duchenne muscular dystrophy (DMD) gene. Journal of Clinical Neuroscience. 15(7). 757–763. 68 indexed citations

17.

Nakamura, Sunao, Koji Hozawa, Hitoshi Nakamura, et al.. (2004). OJ-354 Longterm clinical outcome after coronary atherectomy for ostial lesion in left descending coronary artery.(Coronary Revascularization, PTCA/Stent/DCA/Rotablator/New Device 9 (IHD) : OJ43)(Oral Presentation (Japanese)). Japanese Circulation Journal-english Edition. 68. 315–316. 1 indexed citations

18.

Nakamura, Sunao, Koji Hozawa, Shotaro Nakamura, et al.. (2003). Stenting of Coronary Bifurcation Lesions : Y-Stenting, T-Stenting, Single Stenting, Immediate and Long-Term Results : Multicenter Registry in Japan. Japanese Circulation Journal-english Edition. 67. 237. 1 indexed citations

19.

Koyama, Jun, et al.. (2000). Relation between vascular morphologic changes during stent implantation and the magnitude of in-stent neointimal hyperplasia. The American Journal of Cardiology. 86(7). 753–758. 20 indexed citations

20.

Koyama, Jun, et al.. (1996). The Significant Developmental Stage for Determining Whether a Pistil Will Grow Normally or Abortively, in Cleome spinosa. 30. 41–45. 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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