Ryuji Koga

1.2k total citations
88 papers, 637 citations indexed

About

Ryuji Koga is a scholar working on Electrical and Electronic Engineering, Aerospace Engineering and Spectroscopy. According to data from OpenAlex, Ryuji Koga has authored 88 papers receiving a total of 637 indexed citations (citations by other indexed papers that have themselves been cited), including 71 papers in Electrical and Electronic Engineering, 24 papers in Aerospace Engineering and 17 papers in Spectroscopy. Recurrent topics in Ryuji Koga's work include Electromagnetic Compatibility and Noise Suppression (48 papers), Electromagnetic Compatibility and Measurements (25 papers) and Spectroscopy and Laser Applications (17 papers). Ryuji Koga is often cited by papers focused on Electromagnetic Compatibility and Noise Suppression (48 papers), Electromagnetic Compatibility and Measurements (25 papers) and Spectroscopy and Laser Applications (17 papers). Ryuji Koga collaborates with scholars based in Japan, China and Poland. Ryuji Koga's co-authors include Osami Wada, Yoshitaka Toyota, Tetsushi Watanabe, Takuya Miyashita, Zhong Lin Wang, Kengo Iokibe, Yoshio Kami, Megumi Kosaka, Toshiyuki Murayama and Masayoshi Tanaka and has published in prestigious journals such as Japanese Journal of Applied Physics, Journal of the Optical Society of America A and IEEE Transactions on Instrumentation and Measurement.

In The Last Decade

Ryuji Koga

75 papers receiving 593 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ryuji Koga Japan 14 550 195 74 56 52 88 637
Robert B. Barat United States 9 313 0.6× 68 0.3× 54 0.7× 33 0.6× 8 0.2× 23 386
Steven C. Bender United States 12 194 0.4× 178 0.9× 12 0.2× 43 0.8× 33 0.6× 40 334
James C. Wiltse United States 11 422 0.8× 281 1.4× 82 1.1× 22 0.4× 7 0.1× 53 612
N. B. Anikin Russia 10 359 0.7× 153 0.8× 29 0.4× 11 0.2× 29 0.6× 19 569
C. L. Ruthroff United States 10 315 0.6× 147 0.8× 20 0.3× 76 1.4× 12 0.2× 22 434
Mikko Varonen Finland 18 929 1.7× 94 0.5× 187 2.5× 24 0.4× 6 0.1× 92 991
Michael Coulombe United States 10 170 0.3× 71 0.4× 34 0.5× 70 1.3× 15 0.3× 25 306
J. J. Jiménez Spain 10 192 0.3× 36 0.2× 40 0.5× 40 0.7× 15 0.3× 37 292
Bruce W. Barnes United States 10 235 0.4× 111 0.6× 54 0.7× 102 1.8× 162 3.1× 31 559
D. Luong-Van Australia 10 58 0.1× 58 0.3× 114 1.5× 64 1.1× 54 1.0× 29 292

Countries citing papers authored by Ryuji Koga

Since Specialization
Citations

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

Fields of papers citing papers by Ryuji Koga

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryuji Koga

This figure shows the co-authorship network connecting the top 25 collaborators of Ryuji Koga. A scholar is included among the top collaborators of Ryuji Koga 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 Ryuji Koga. Ryuji Koga 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.
Toyota, Yoshitaka, et al.. (2010). Development of a Equivalent Circuit Model with Transmission Line Model for Designing Filter Formed on Printed Circuit Boards. IEICE Technical Report; IEICE Tech. Rep.. 109(370). 81–86. 1 indexed citations
2.
Toyota, Yoshitaka, et al.. (2009). Effect of Reducing Electromagnetic Noise between Power/Ground Planes with an EBG Pattern on Applying Noise Suppression Sheets. IEICE Technical Report; IEICE Tech. Rep.. 109(18). 7–12. 2 indexed citations
3.
Iokibe, Kengo, Yoshitaka Toyota, Osami Wada, & Ryuji Koga. (2005). A Scheme to Classify Clouds with the Depolarization Ratio andBackscattering Coeffcient Measured by Lidar. Okayama University Scientific Achievement Repository (Okayama University). 39(1). 93–101. 4 indexed citations
4.
Watanabe, Tetsushi, et al.. (2004). A Prediction Method of Common-Mode Excitation on a Printed Circuit Board Having a Signal Trace near the Ground Edge. IEICE Transactions on Communications. 87(8). 2327–2334. 42 indexed citations
5.
Iokibe, Kengo, Yoshitaka Toyota, Osami Wada, & Ryuji Koga. (2003). Aerosol Extinction Coefficient Continuously Measured with Polarized Mie Scattering Lidar. Okayama University Scientific Achievement Repository (Okayama University). 37(2). 89–97. 1 indexed citations
6.
7.
Toyota, Yoshitaka, et al.. (2002). Application of Transfer Matrix Method with Signal Flow-Chart to Analyze Optical Multi-Path Ring-Resonator. Okayama University Scientific Achievement Repository (Okayama University). 36(2). 73–82. 9 indexed citations
8.
Wada, Osami, et al.. (2001). Power Current Model of LSI/IC Containing Equivalent Internal Impedance for EMI Analysis of Digital Circuits. IEICE Transactions on Communications. 84(11). 3041–3049. 19 indexed citations
9.
Wada, Osami, et al.. (2000). An Improved Closed-Form Expression for Accurate and Rapid Calculation of Power/Ground Plane Impedance in Multilayer PCBs. 2000(65). 17–23. 15 indexed citations
10.
Koga, Ryuji, et al.. (2000). Depolarization properties of Asian dust (KOSA) measured hyLIDAR in Okayama in the spring of 1998. Okayama University Scientific Achievement Repository (Okayama University). 34(1). 27–37. 1 indexed citations
11.
Watanabe, Tetsushi, Osami Wada, Takuya Miyashita, & Ryuji Koga. (2000). Common-Mode-Current Generation Caused by Difference of Unbalance of Transmission Lines on a Printed Circuit Board with Narrow Ground Pattern. IEICE Transactions on Communications. 83(3). 593–599. 69 indexed citations
12.
Koga, Ryuji, et al.. (1998). Prediction of Far-Field EMI Spectrum of Differential Mode Emission from a Digital PCB by Near-Field Measurement. IEICE Transactions on Communications. 80(11). 1633–1638. 1 indexed citations
13.
Wada, Osami, et al.. (1995). Eigenmode Analysis of Whispering Gallery Modes of Pillbox-Type Optical Resonators Utilizing the FE-BPM Formulation. IEICE Transactions on Electronics. 78(11). 1638–1645. 1 indexed citations
14.
Miyashita, Takuya, et al.. (1995). Prediction of Peak Frequencies on Electromagnetic Emission from a Signal Line on a Printed Circuit Board. IEICE Transactions on Communications. 78(2). 181–187. 1 indexed citations
15.
Wada, Osami, et al.. (1993). Dependence of electromagnetic noise emission from a printed circuit board on electric characteristics of CMOS logic IC. 45–52.
16.
Wada, Osami, et al.. (1992). Power-Sum Estimation of Electromagnetic Noise Radiated from High-Speed CMOS Printed Circuit Boards. IEICE Transactions on Communications. 75(3). 165–173. 2 indexed citations
17.
Koga, Ryuji, et al.. (1989). Estimation of electromagnetic impulse noise radiated from a digital-circuit board. International Symposium on Electromagnetic Compatibility. 389–393. 3 indexed citations
18.
Koga, Ryuji, et al.. (1982). Improvement of Etalon-fringe Immunity in Diode-laser Derivative Spectroscopy. Okayama University Scientific Achievement Repository (Okayama University). 16(1). 21–30. 1 indexed citations
19.
Koga, Ryuji, et al.. (1979). A Notion of Adjoint Spectrum in the Application to Air-pollution Monitoring. Okayama University Scientific Achievement Repository (Okayama University). 13(13). 181–193. 1 indexed citations
20.
Koga, Ryuji, et al.. (1979). A Performance Analysis For An Air-Pollution Monitoring Using A Pulsed Dye Laser. Okayama University Scientific Achievement Repository (Okayama University). 13. 195–207.

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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