Keiji Wãda

6.3k total citations
488 papers, 5.0k citations indexed

About

Keiji Wãda is a scholar working on Electrical and Electronic Engineering, Ecology and Control and Systems Engineering. According to data from OpenAlex, Keiji Wãda has authored 488 papers receiving a total of 5.0k indexed citations (citations by other indexed papers that have themselves been cited), including 291 papers in Electrical and Electronic Engineering, 102 papers in Ecology and 58 papers in Control and Systems Engineering. Recurrent topics in Keiji Wãda's work include Silicon Carbide Semiconductor Technologies (142 papers), Advanced DC-DC Converters (103 papers) and Electromagnetic Compatibility and Noise Suppression (96 papers). Keiji Wãda is often cited by papers focused on Silicon Carbide Semiconductor Technologies (142 papers), Advanced DC-DC Converters (103 papers) and Electromagnetic Compatibility and Noise Suppression (96 papers). Keiji Wãda collaborates with scholars based in Japan, United States and South Korea. Keiji Wãda's co-authors include Toshihisa Shimizu, N. Nakamura, Hirofumi Akagi, Hideaki Fujita, Mutsumi Nishida, Yasuo Fukui, Makoto Takamiya, Takayasu Sakurai, Yuichi Kado and Andrew M. Lohrer and has published in prestigious journals such as PLoS ONE, Journal of The Electrochemical Society and Brain Research.

In The Last Decade

Keiji Wãda

452 papers receiving 4.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Keiji Wãda Japan 30 3.0k 1.1k 993 558 470 488 5.0k
Zhifei Zhang China 42 291 0.1× 166 0.2× 733 0.7× 177 0.3× 61 0.1× 270 7.0k
Eize J. Stamhuis Netherlands 32 192 0.1× 810 0.8× 220 0.2× 384 0.7× 144 0.3× 92 5.6k
Ichiro Aoki Japan 36 1.2k 0.4× 1.0k 1.0× 15 0.0× 1.9k 3.3× 61 0.1× 160 4.8k
Zhihong Li China 35 2.1k 0.7× 183 0.2× 45 0.0× 61 0.1× 73 0.2× 273 4.1k
Qing Ye China 33 894 0.3× 389 0.4× 61 0.1× 889 1.6× 35 0.1× 147 3.5k
Takeshi Inoue Japan 31 541 0.2× 90 0.1× 52 0.1× 725 1.3× 67 0.1× 164 2.8k
William F. Pickard United States 31 651 0.2× 86 0.1× 140 0.1× 274 0.5× 125 0.3× 155 3.5k
Eldwin J. Ng United States 27 2.3k 0.8× 91 0.1× 35 0.0× 98 0.2× 119 0.3× 116 4.1k
Thomas Speck Germany 45 164 0.1× 329 0.3× 63 0.1× 472 0.8× 43 0.1× 298 7.6k

Countries citing papers authored by Keiji Wãda

Since Specialization
Citations

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

Fields of papers citing papers by Keiji Wãda

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keiji Wãda

This figure shows the co-authorship network connecting the top 25 collaborators of Keiji Wãda. A scholar is included among the top collaborators of Keiji Wãda 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 Keiji Wãda. Keiji Wãda 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.
Wãda, Keiji, et al.. (2020). Design of Bus Bar Structure in Power Converter Circuit to Obtain Optimized Switching Waveform. IEEJ Transactions on Industry Applications. 140(11). 817–825. 1 indexed citations
2.
Fujita, Satoru, et al.. (2020). Switching Power Supply with 200V or 400V Input Voltage using a 3-Level Circuit. IEEJ Transactions on Industry Applications. 141(1). 46–55.
3.
Wãda, Keiji, et al.. (2019). Output Current Ripple Reduction of LED Driver Using Ceramic-Capacitor-Input Circuit and Buck-Boost Converter. IEEJ Transactions on Industry Applications. 139(9). 806–813. 1 indexed citations
4.
Matsubara, Kazuki, Keiji Wãda, & Yukihisa Suzuki. (2018). Design of a Coil Geometry for Generating Magnetic Field to Evaluate Biological Effects at 85kHz. IEEJ Transactions on Industry Applications. 138(4). 360–367. 1 indexed citations
5.
Wãda, Keiji, et al.. (2018). Voltage Balancing Control based on Gate Signal Delay in Series Connection of SiC-MOSFET. IEEJ Transactions on Industry Applications. 138(11). 864–870. 4 indexed citations
6.
Hirao, Takashi, Keiji Wãda, & Toshihisa Shimizu. (2018). Capacitor Current Imbalance and Its Suppression Method Between Phase Legs for Three-phase Inverter. IEEJ Transactions on Industry Applications. 138(6). 491–498. 1 indexed citations
7.
Wãda, Keiji, et al.. (2017). Influence of DC-Side Stray Inductance on Switching Loss for Silicon Carbide MOSFET. IEEJ Transactions on Industry Applications. 137(2). 168–174. 2 indexed citations
8.
Wãda, Keiji, et al.. (2017). Switching Ripple Current Reduction of DC-Link Capacitor in a Two-Stage Single-Phase AC/DC Converter. IEEJ Transactions on Industry Applications. 137(3). 220–229. 1 indexed citations
9.
Wãda, Keiji, et al.. (2016). Current Sensor for Laminated Bus Bar. IEEJ Transactions on Industry Applications. 136(7). 509–510.
10.
Wãda, Keiji, et al.. (2015). Current Control of a Single-phase Inverter by Applying a Multisampling Method. IEEJ Transactions on Industry Applications. 135(12). 1160–1167. 1 indexed citations
11.
Wãda, Keiji, et al.. (2014). Frequency Limitation Method for Reducing the Power Rating of a Single-Phase Active Filter. IEEJ Transactions on Industry Applications. 134(2). 202–208. 3 indexed citations
12.
Wãda, Keiji, et al.. (2012). Design of Wiring Structure by Considering Bus Bar Inductance. IEEJ Transactions on Industry Applications. 132(4). 510–517. 6 indexed citations
13.
Wãda, Keiji, et al.. (2012). Analysis of Electromagnetic Induced Noise with Laminated Bus Bar. IEEJ Transactions on Industry Applications. 132(2). 288–294. 3 indexed citations
14.
Wãda, Keiji, et al.. (2009). Analysis of Near Field Noise Voltage Caused by Pulse Current on Power Electronics Circuits. IEEJ Transactions on Industry Applications. 129(9). 859–865. 5 indexed citations
15.
Hashino, Satoshi, Keiji Wãda, & Toshihisa Shimizu. (2007). A Generation Control of Arbitrary AC Waveforms for the Single-phase Voltage Source PWM Inverter Utilizing an Adaptive Frequency Loss-less Resonator. IEEJ Transactions on Industry Applications. 127(2). 103–111. 1 indexed citations
16.
Hagiwara, Makoto, Keiji Wãda, Hideaki Fujita, & Hirofumi Akagi. (2006). Dynamic Behavior of a 21-Level (Line-to-Line) BTB System Based on Series Connection of Sixteen Converter-Cells under a Single-Line-to-Ground Fault Condition: Experimental Verification by a 200-V, 20-kW Laboratory System. IEEJ Transactions on Industry Applications. 126(3). 352–359. 2 indexed citations
17.
Hagiwara, Makoto, Keiji Wãda, Hideaki Fujita, & Hirofumi Akagi. (2005). A 21-Level (Line-to-Line) BTB System Based on Series Connection of Sixteen Converter Cells-Experimental Verifications by a 200-V, 20-kW Laboratory System-. IEEJ Transactions on Industry Applications. 125(4). 397–404. 2 indexed citations
18.
Wãda, Keiji, Shigenori Inoue, & Toshihisa Shimizu. (2003). Mitigation Method of 3rd-Harmonic Voltage for Three-Phase Four-Wire Distribution System Based on a Series Active Filter for Neutral Conductor. IEEJ Transactions on Industry Applications. 123(8). 942–948. 4 indexed citations
19.
Wãda, Keiji, Hideaki Fujita, & Hirofumi Akagi. (2000). Analysis of Harmonic Propagation in a Power Distribution System. IEEJ Transactions on Industry Applications. 120(11). 1335–1342. 1 indexed citations
20.
Tanaka, Toshihiko, Keiji Wãda, & Hirofumi Akagi. (1997). Voltage Oscillation on the AC Side of Series Active Filters and Its Suppression.. IEEJ Transactions on Industry Applications. 117(6). 680–687. 4 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Zhifei Zhang Breakdown of academic impact, for papers by Eize J. Stamhuis Breakdown of academic impact, for papers by Ichiro Aoki Breakdown of academic impact, for papers by Zhihong Li Breakdown of academic impact, for papers by Qing Ye Breakdown of academic impact, for papers by Takeshi Inoue Breakdown of academic impact, for papers by William F. Pickard Breakdown of academic impact, for papers by Eldwin J. Ng Breakdown of academic impact, for papers by Thomas Speck
Rankless by CCL
2026