Kenichiro Takeda

727 citations

31 papers · 632 indexed · 1 hit paper · h-index 13

Co-authors: Hiroshi Amano Motoaki Iwaya Satoshi Kamiyama Isamu Akasaki Tetsuya Takeuchi Junichi Yamamoto Masakazu Kuwabara Hirofumi Kan
Topics: GaN-based semiconductor devices and materials (26 papers)Ga2O3 and related materials (18 papers)Semiconductor materials and devices (12 papers)
Cited by: Condensed Matter Physics Electronic, Optical and Magnetic Materials Materials Chemistry
Journals: Japanese Journal of Applied Physics Journal of Crystal Growth Applied Physics Express
Partner nations: Japan United States

In The Last Decade

Kenichiro Takeda

31 papers receiving 605 citations

Hit Papers

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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.

Internal Quantum Efficiency of Whole-Composition-Range AlGaN Multiquantum Wells

2011 241 citations Kenichiro Takeda, Motoaki Iwaya et al. profile →

Peers

Countries citing papers authored by Kenichiro Takeda

Since Specialization

Citations

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

Fields of papers citing papers by Kenichiro Takeda

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kenichiro Takeda

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

#	Work	Indexed citations
1	Two cases of pulmonary arterial hypertension with specific vascular Мalformations and unique eosinophilic inflammation in carriers of the RNF213 p. Arg4810Lys variant: Case series 2023 ·Respiratory Medicine Case Reports ·Kenichiro Takeda,Ayumi Sekine,Nobuhiro Tanabe,Toshihiko Sugiura,Ayako Shigeta,Shinsuke Kitahara,Shun Imai,(unknown),Jun Nagata,Akira Naito,Seiichiro Sakao,Koichiro Tatsumi,Takuji Suzuki	2
2	Improvement of light extraction efficiency of 350‐nm emission UV light‐emitting diodes 2014 ·Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics ·(unknown),Kenichiro Takeda,Motoaki Iwaya,Tetsuya Takeuchi,Satoshi Kamiyama,Isamu Akasaki,Hiroshi Amano	4
3	Combination of Indium--Tin Oxide and SiO 2013 ·Japanese Journal of Applied Physics ·(unknown),Kenichiro Takeda,(unknown),Motoaki Iwaya,Satoshi Kamiyama,Tetsuya Takeuchi,Isamu Akasaki,Hiroshi Amano	1
4	Combination of Indium–Tin Oxide and SiO₂/AlN Dielectric Multilayer Reflective Electrodes for Ultraviolet-Light-Emitting Diodes 2013 ·Japanese Journal of Applied Physics ·(unknown),Kenichiro Takeda,(unknown),Motoaki Iwaya,Satoshi Kamiyama,Tetsuya Takeuchi,Isamu Akasaki,Hiroshi Amano	8
5	Enhancement of two‐dimensional electron gases in AlGaN‐channel high‐electron‐mobility transistors with AlN barrier layers 2012 ·physica status solidi (a) ·Shin Hashimoto,Katsushi Akita,Yoshiyuki Yamamoto,Masaki Ueno,Takao Nakamura,Kenichiro Takeda,Motoaki Iwaya,Yoshio Honda,Hiroshi Amano	17
6	Laser lift‐off of AlN/sapphire for UV light‐emitting diodes 2012 ·Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics ·(unknown),Kenichiro Takeda,(unknown),(unknown),(unknown),Motoaki Iwaya,Tetsuya Takeuchi,Satoshi Kamiyama,Isamu Akasaki,Hiroshi Amano	37
7	Indium–Tin Oxide/Al Reflective Electrodes for Ultraviolet Light-Emitting Diodes 2012 ·Japanese Journal of Applied Physics ·(unknown),Kenichiro Takeda,(unknown),(unknown),Motoaki Iwaya,Tetsuya Takeuchi,Satoshi Kamiyama,Isamu Akasaki,Hiroshi Amano	6
8	Growth of GaN and AlGaN on (100) β‐Ga₂O₃ substrates 2012 ·Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics ·(unknown),Kenichiro Takeda,Kengo Nagata,(unknown),(unknown),Motoaki Iwaya,Tetsuya Takeuchi,Satoshi Kamiyama,Isamu Akasaki,Hiroshi Amano	34
9	Indium–Tin Oxide/Al Reflective Electrodes for Ultraviolet Light-Emitting Diodes 2012 ·Japanese Journal of Applied Physics ·(unknown),Kenichiro Takeda,(unknown),(unknown),Motoaki Iwaya,Tetsuya Takeuchi,Satoshi Kamiyama,Isamu Akasaki,Hiroshi Amano	11
10	Injection efficiency in AlGaN‐based UV laser diodes 2011 ·Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics ·Kengo Nagata,Kenichiro Takeda,(unknown),(unknown),(unknown),(unknown),Motoaki Iwaya,Tetsuya Takeuchi,Satoshi Kamiyama,Isamu Akasaki,Hiroshi Amano,Harumasa Yoshida,Masakazu Kuwabara,Yoji Yamashita,Hirofumi Kan	16
11	High carrier concentration in high Al‐composition AlGaN‐channnel HEMTs 2011 ·Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics ·Shin Hashimoto,Katsushi Akita,Yoshiyuki Yamamoto,Masaki Ueno,Takao Nakamura,(unknown),K. Sakuno,Hirokuni Tokuda,Masaaki Kuzuhara,Kenichiro Takeda,Motoaki Iwaya,Hiroshi Amano	21
12	Low leakage current in AlGaN/GaN HFETs with preflow of Mg source before growth of u‐GaN buffer layer 2011 ·physica status solidi (a) ·(unknown),Takayuki Sugiyama,Kenichiro Takeda,Motoaki Iwaya,Tetsuya Takeuchi,Satoshi Kamiyama,Isamu Akasaki,Hiroshi Amano	2
13	Reduction in threshold current density of 355 nm UV laser diodes 2011 ·Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics ·Kengo Nagata,Kenichiro Takeda,(unknown),(unknown),Motoaki Iwaya,Tetsuya Takeuchi,Satoshi Kamiyama,Isamu Akasaki,Hiroshi Amano,Harumasa Yoshida,Masakazu Kuwabara,Yoji Yamashita,Hirofumi Kan	14
14	AlGaN/GaN Heterostructure Field-Effect Transistors on Fe-Doped GaN Substrates with High Breakdown Voltage 2011 ·Japanese Journal of Applied Physics ·(unknown),Takayuki Sugiyama,Kenichiro Takeda,Motoaki Iwaya,Tetsuya Takeuchi,Satoshi Kamiyama,Isamu Akasaki,Hiroshi Amano	6
15	Transparent electrode for UV light‐emitting‐diodes 2011 ·Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics ·(unknown),Kenichiro Takeda,Kengo Nagata,(unknown),(unknown),Motoaki Iwaya,Tetsuya Takeuchi,Satoshi Kamiyama,Isamu Akasaki,Hiroshi Amano	6
16	Internal quantum efficiency and internal loss of ultraviolet laser diodes on the low dislocation density AlGaN underlying layer 2010 ·Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics ·Kenichiro Takeda,Kengo Nagata,(unknown),(unknown),(unknown),(unknown),Motoaki Iwaya,Tetsuya Takeuchi,Satoshi Kamiyama,Isamu Akasaki,Hiroshi Amano,Harumasa Yoshida,Masakazu Kuwabara,Yoji Yamashita,Hirofumi Kan	3
17	Epitaxial Layers of AlGaN Channel HEMTs on AlN Substrates 2010 ·Shin Hashimoto,Katsushi Akita,(unknown),H. Nakahata,Kenichiro Takeda,Hiroshi Amano	6
18	Activation of Mg-Doped p-Type Al_0.17Ga_0.83N in Oxygen Ambient 2009 ·Japanese Journal of Applied Physics ·Kengo Nagata,Kenichiro Takeda,(unknown),Kentaro Nagamatsu,Motoaki Iwaya,Satoshi Kamiyama,Hiroshi Amano,Isamu Akasaki	1
19	Novel UV devices on high-quality AlGaN using grooved underlying layer 2009 ·Journal of Crystal Growth ·(unknown),(unknown),Kenichiro Takeda,Motoaki Iwaya,Satoshi Kamiyama,Hiroshi Amano,Isamu Akasaki,Harumasa Yoshida,Masakazu Kuwabara,Yoji Yamashita,Hirofumi Kan	54
20	Microscopic Observations of SOFC Anodes Under Operation With Hydrocarbon Fuels 2004 ·‪Tatsuya Kawada,Keiji Yashiro,(unknown),Kenichiro Takeda,Atsushi Kaimai,Hiroshige Matsumoto,Junichiro Mizusaki,Hiroo Yugami	2

About Kenichiro Takeda

Kenichiro Takeda is a scholar working on Condensed Matter Physics, Electronic, Optical and Magnetic Materials and Electrical and Electronic Engineering, having authored 31 papers that have together received 632 indexed citations. Recurring topics across this work include GaN-based semiconductor devices and materials (26 papers), Ga2O3 and related materials (18 papers) and Semiconductor materials and devices (12 papers). The work is most often cited by research in Condensed Matter Physics (597 citations), Electronic, Optical and Magnetic Materials (401 citations) and Materials Chemistry (253 citations). Kenichiro Takeda has collaborated with scholars based in Japan and United States. Frequent co-authors include Hiroshi Amano, Motoaki Iwaya, Satoshi Kamiyama, Isamu Akasaki, Tetsuya Takeuchi, Junichi Yamamoto, Masakazu Kuwabara, Hirofumi Kan, Harumasa Yoshida and Yoji Yamashita. Their work appears in journals such as Japanese Journal of Applied Physics, Journal of Crystal Growth and Applied Physics Express.

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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