Kei Ohkubo
About
Kei Ohkubo is a scholar working on Materials Chemistry, Organic Chemistry and Physical and Theoretical Chemistry.
According to data from OpenAlex, Kei Ohkubo has authored 474 papers receiving a total of 22.0k indexed citations (citations by other indexed papers that have themselves been cited), including 280 papers in Materials Chemistry, 223 papers in Organic Chemistry and 112 papers in Physical and Theoretical Chemistry. Recurrent topics in Kei Ohkubo's work include Porphyrin and Phthalocyanine Chemistry (228 papers), Photochemistry and Electron Transfer Studies (110 papers) and Fullerene Chemistry and Applications (77 papers). Kei Ohkubo is often cited by papers focused on Porphyrin and Phthalocyanine Chemistry (228 papers), Photochemistry and Electron Transfer Studies (110 papers) and Fullerene Chemistry and Applications (77 papers). Kei Ohkubo collaborates with scholars based in Japan, South Korea and United States. Kei Ohkubo's co-authors include Shunichi Fukuzumi, Hiroaki Kotani, Tomoyoshi Suenobu, Takahiko Kojima, Wonwoo Nam, Karl M. Kadish, Francis D’Souza, Nikolai V. Tkachenko, Helge Lemmetyinen and Kentaro Mase and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and Journal of the American Chemical Society.
In The Last Decade
Kei Ohkubo
468 papers receiving 21.7k citations
Hit Papers
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late) cites · hero ref
| Name | h | Career | Trend | Papers | Cites | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Kei Ohkubo Japan | 79 | 12.3k | 9.6k | 4.2k | 3.7k | 3.6k | 474 | 22.0k | ||
| Rosario Scopelliti Switzerland | 80 | 8.6k 0.7× | 13.5k 1.4× | 1.9k 0.4× | 8.0k 2.2× | 3.7k 1.0× | 559 | 24.6k | ||
| Francis D’Souza United States | 69 | 14.5k 1.2× | 6.2k 0.6× | 2.3k 0.5× | 1.2k 0.3× | 5.7k 1.6× | 537 | 19.6k | ||
| Anthony Harriman United Kingdom | 71 | 15.3k 1.2× | 4.9k 0.5× | 2.0k 0.5× | 1.7k 0.5× | 4.9k 1.3× | 333 | 20.7k | ||
| Nagao Kobayashi Japan | 68 | 15.0k 1.2× | 5.2k 0.5× | 1.2k 0.3× | 3.0k 0.8× | 2.8k 0.8× | 551 | 18.7k | ||
| Burkhard König Germany | 87 | 6.8k 0.6× | 23.3k 2.4× | 5.1k 1.2× | 2.3k 0.6× | 1.8k 0.5× | 583 | 33.0k | ||
| Chunying Duan China | 81 | 13.0k 1.1× | 6.4k 0.7× | 3.0k 0.7× | 11.1k 3.0× | 2.0k 0.5× | 594 | 23.8k | ||
| James M. Mayer United States | 75 | 6.6k 0.5× | 8.5k 0.9× | 7.7k 1.8× | 8.9k 2.4× | 2.6k 0.7× | 320 | 20.8k | ||
| Roger Guilard France | 51 | 9.9k 0.8× | 3.6k 0.4× | 1.4k 0.3× | 4.4k 1.2× | 1.7k 0.5× | 515 | 14.1k | ||
| Shaikh M. Mobin India | 63 | 6.9k 0.6× | 6.6k 0.7× | 1.3k 0.3× | 3.7k 1.0× | 3.9k 1.1× | 534 | 16.6k | ||
| Gene‐Hsiang Lee Taiwan | 66 | 9.5k 0.8× | 11.7k 1.2× | 1.6k 0.4× | 7.6k 2.1× | 7.1k 2.0× | 896 | 24.5k |
Countries citing papers authored by Kei Ohkubo
Since
Specialization
Citations
This map shows the geographic impact of Kei Ohkubo'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 Kei Ohkubo with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kei Ohkubo more than expected).
Fields of papers citing papers by Kei Ohkubo
Since
Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences
This network shows the impact of papers produced by Kei Ohkubo. 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 Kei Ohkubo. The network helps show where Kei Ohkubo may publish in the future.
Co-authorship network of co-authors of Kei Ohkubo
This figure shows the co-authorship network connecting the top 25 collaborators of Kei Ohkubo. A scholar is included among the top collaborators of Kei Ohkubo 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 Kei Ohkubo. Kei Ohkubo is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
1.
Ogata, Shigenori, et al.. (2025). Sulfide Oxidation to Sulfone Using Sodium Chlorite and Hydrochloric Acid in Organic Solvents. Molecules. 30(9). 1912–1912.
2.
Manda, Kailash, Kei Ohkubo, Yoshimi Shoji, et al.. (2023). In vitro radical-scavenging mechanism of melatonin and its in vivo protective effect against radiation-induced lipid peroxidation. SHILAP Revista de lepidopterología. 3-4. 100003–100003.
3.
Shigemitsu, Hajime, Yasuko Osakada, Mamoru Fujitsuka, et al.. (2023). Supramolecular nanosheet formation-induced photosensitisation mechanism change of Rose Bengal dye in aqueous media. Chemical Communications. 60(7). 889–892.
4.
Asahara, Haruyasu, et al.. (2023). Chlorine-radical-mediated C–H oxygenation reaction under light irradiation. Chemical Communications. 59(49). 7506–7517.
5.
Nakanishi, Ikuo, Yoshimi Shoji, Kei Ohkubo, Hiromu Ito, & Shunichi Fukuzumi. (2023). Water-Induced Regeneration of a 2,2-Diphenyl-1-picrylhydrazyl Radical after Its Scandium Ion-Promoted Electron-Transfer Disproportionation in an Aprotic Medium. Molecules. 28(13). 5002–5002.
6.
Yamamoto, Keita, et al.. (2023). One-step antibacterial modification of polypropylene non-woven fabrics via oxidation using photo-activated chlorine dioxide radicals. Journal of Materials Chemistry B. 11(23). 5101–5107.
7.
Kaneko, Yudai, Kenzo Yamatsugu, Takefumi Yamashita, et al.. (2022). Pathological complete remission of relapsed tumor by photo‐activating antibody–mimetic drug conjugate treatment. Cancer Science. 113(12). 4350–4362.
8.
Asahara, Haruyasu, et al.. (2022). Visible-light-induced phosgenation of amines by chloroform oxygenation using chlorine dioxide. Chemical Communications. 58(42). 6176–6179.
9.
Shigemitsu, Hajime, Kei Ohkubo, Kazuhide Sato, et al.. (2022). Fluorescein-Based Type I Supramolecular Photosensitizer via Induction of Charge Separation by Self-Assembly. JACS Au. 2(6). 1472–1478.
10.
Shigemitsu, Hajime, Kazuhide Sato, Tadashi Mori, et al.. (2022). Amphiphilic Rhodamine Nano-assembly as a Type I Supramolecular Photosensitizer for Photodynamic Therapy. ACS Applied Nano Materials. 5(10). 14954–14960.
11.
Yamatsugu, Kenzo, Motomu Kanai, Kazuki Takahashi, et al.. (2021). Axially Substituted Silicon Phthalocyanine Payloads for Antibody–Drug Conjugates. Synlett. 32(11). 1098–1103.
12.
Mitsunuma, Harunobu, et al.. (2019). Catalytic asymmetric allylation of aldehydes with alkenes through allylic C(sp 3 )–H functionalization mediated by organophotoredox and chiral chromium hybrid catalysis. Chemical Science. 10(12). 3459–3465.
13.
Kotani, Hiroaki, Tomoya Ishizuka, Masaki Kawano, et al.. (2019). A Diprotonated Porphyrin as an Electron Mediator in Photoinduced Electron Transfer in Hydrogen-Bonded Supramolecular Assemblies. The Journal of Physical Chemistry C. 123(18). 11529–11538.
14.
Chen, Xiaofei, Mohamed E. El‐Khouly, Kei Ohkubo, Shunichi Fukuzumi, & Dennis K. P. Ng. (2018). Assemblies of Boron Dipyrromethene/Porphyrin, Phthalocyanine, and C60 Moieties as Artificial Models of Photosynthesis: Synthesis, Supramolecular Interactions, and Photophysical Studies. Chemistry - A European Journal. 24(15). 3862–3872.
15.
Hong, Dachao, Hiroaki Kotani, Tomoya Ishizuka, et al.. (2018). Mechanistic Insights into Homogeneous Electrocatalytic and Photocatalytic Hydrogen Evolution Catalyzed by High-Spin Ni(II) Complexes with S2N2-Type Tetradentate Ligands. Inorganic Chemistry. 57(12). 7180–7190.
16.
Ishizuka, Tomoya, Muneaki Hashimoto, Kei Ohkubo, et al.. (2018). A supramolecular photocatalyst composed of a polyoxometalate and a photosensitizing water-soluble porphyrin diacid for the oxidation of organic substrates in water. Green Chemistry. 20(9). 1975–1980.
17.
Nakanishi, Ikuo, Kei Ohkubo, Yoshihiro Uto, et al.. (2013). Disproportionation of a 2,2-diphenyl-1-picrylhydrazyl radical as a model of reactive oxygen species catalysed by Lewis and/or Brønsted acids. Chemical Communications. 50(7). 814–816.
18.
Kojima, Takahiko, et al.. (2010). Construction of SnIV Porphyrin/Trinuclear Ruthenium Cluster Dyads Linked by Pyridine Carboxylates: Photoinduced Electron Transfer in the Marcus Inverted Region. Chemistry - A European Journal. 16(12). 3646–3655.
19.
Ohkubo, Kei, et al.. (2010). Photoinduced Electron Transfer in Photorobust Coumarins Linked with Electron Donors Affording Long Lifetimes of Triplet Charge‐Separated States. ChemPhysChem. 11(12). 2594–2605.
20.
Kadish, Karl M., E Wenbo, Zhongping Ou, et al.. (2002). Evidence that gold(iii) porphyrins are not electrochemically inert: facile generation of gold(ii) 5,10,15,20-tetrakis(3,5-di-tert-butylphenyl)porphyrin. Chemical Communications. 356–357.
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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