K. Takei

458 total citations
12 papers, 404 citations indexed

About

K. Takei is a scholar working on Electrical and Electronic Engineering, Organic Chemistry and Automotive Engineering. According to data from OpenAlex, K. Takei has authored 12 papers receiving a total of 404 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Electrical and Electronic Engineering, 3 papers in Organic Chemistry and 3 papers in Automotive Engineering. Recurrent topics in K. Takei's work include Advancements in Battery Materials (6 papers), Advancements in Solid Oxide Fuel Cells (3 papers) and Advanced Battery Materials and Technologies (3 papers). K. Takei is often cited by papers focused on Advancements in Battery Materials (6 papers), Advancements in Solid Oxide Fuel Cells (3 papers) and Advanced Battery Materials and Technologies (3 papers). K. Takei collaborates with scholars based in Japan and China. K. Takei's co-authors include T. Iwahori, Kazuma Kumai, Hajime Miyashiro, Yo Kobayashi, Nobuyuki Terada, Toshikazu Nishida, Yuya Ishii, Hidetoshi Honbo, Takaaki Tanaka and I. Uchida and has published in prestigious journals such as Angewandte Chemie International Edition, Journal of The Electrochemical Society and Journal of Power Sources.

In The Last Decade

K. Takei

10 papers receiving 389 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
K. Takei Japan 8 330 264 89 50 30 12 404
Kirsi Jalkanen Finland 14 816 2.5× 612 2.3× 77 0.9× 24 0.5× 33 1.1× 17 857
Florian Baakes Germany 7 307 0.9× 180 0.7× 49 0.6× 63 1.3× 4 0.1× 11 341
Qifan Yang China 7 232 0.7× 91 0.3× 133 1.5× 45 0.9× 7 0.2× 23 343
D. J. Xiong Canada 12 870 2.6× 694 2.6× 28 0.3× 56 1.1× 18 0.6× 13 899
Xuning Gao China 7 606 1.8× 390 1.5× 47 0.5× 48 1.0× 6 0.2× 10 634
Steffen Hess Germany 4 324 1.0× 217 0.8× 32 0.4× 28 0.6× 22 0.7× 7 366

Countries citing papers authored by K. Takei

Since Specialization
Citations

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

Fields of papers citing papers by K. Takei

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K. Takei

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

All Works

12 of 12 papers shown
1.
Nakano, Ryohei, Keiji Sasaki, Y. Taira, et al.. (2025). Total Synthesis of Isodaphlongamine H by Iridium‐Catalyzed Reductive [3 + 2] Cycloaddition of N‐ Hydroxylactam. Angewandte Chemie International Edition. 64(29). e202508062–e202508062.
2.
Nakano, Ryohei, Keiji Sasaki, Y. Taira, et al.. (2025). Total Synthesis of Isodaphlongamine H by Iridium‐Catalyzed Reductive [3 + 2] Cycloaddition of N‐ Hydroxylactam. Angewandte Chemie. 137(29).
3.
Takei, K., et al.. (2023). Synthesis of Chiral α,α-Disubstituted Cyclic Nitrones from Secondary Lactams. Bulletin of the Chemical Society of Japan. 96(6). 529–537. 5 indexed citations
4.
5.
Liu, Ying, Kenji Yasumoto, Shinichi Hashimoto, et al.. (2010). Development of Ceria Based SOFCs With a High Performance La0.6Sr0.4Co0.2Fe0.8O3−δ–Ce0.9Gd0.1O1.95–Ag Composite Cathode. Journal of Fuel Cell Science and Technology. 7(6). 4 indexed citations
6.
Honbo, Hidetoshi, K. Takei, Yuya Ishii, & Toshikazu Nishida. (2008). Electrochemical properties and Li deposition morphologies of surface modified graphite after grinding. Journal of Power Sources. 189(1). 337–343. 67 indexed citations
7.
Hashimoto, Shinichi, Kenji Yasumoto, K. Takei, et al.. (2008). Preparation and application of nano-dispersed Ag in La0.6Sr0.4Co Fe1−O3−δ perovskites for intermediate-temperature solid oxide fuel cell. Current Applied Physics. 9(1). S51–S53. 25 indexed citations
8.
Hashimoto, Shinichi, et al.. (2006). Fabrication and characterization of a co-fired La0.6Sr0.4Co0.2Fe0.8O3−δ cathode-supported Ce0.9Gd0.1O1.95 thin-film for IT-SOFCs. Journal of Power Sources. 164(1). 56–64. 41 indexed citations
9.
Takei, K., et al.. (2003). Performance of large-scale secondary lithium batteries for electric vehicles and home-use load-leveling systems. Journal of Power Sources. 119-121. 887–892. 26 indexed citations
10.
Kobayashi, Yo, Hajime Miyashiro, Kazuma Kumai, et al.. (2002). Precise Electrochemical Calorimetry of LiCoO[sub 2]/Graphite Lithium-Ion Cell. Journal of The Electrochemical Society. 149(8). A978–A978. 84 indexed citations
11.
Takei, K., Kazuma Kumai, Yo Kobayashi, et al.. (2001). Cycle life estimation of lithium secondary battery by extrapolation method and accelerated aging test. Journal of Power Sources. 97-98. 697–701. 113 indexed citations
12.
Takei, K., et al.. (1995). Effects of the macroscopic structure of carbon black on its behaviour as the anode in a lithium secondary cell. Journal of Power Sources. 55(2). 191–195. 22 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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2026