Keizo Takeda

462 citations

15 papers · 306 indexed · h-index 10

Impact in

Nuclear and High Energy Physics top 10%
- Nuclear physics research studies
- Astronomical and nuclear sciences
Biophysics top 5%
- Electron Spin Resonance Studies

Papers in

Radiation 5
- Nuclear Physics and Applications 5
Nuclear and High Energy Physics 5
- Nuclear physics research studies 5

Co-authors: Kinichi Obi Akio Kawai Yasuhiro Kobori Y. Nagai M. Igashira Kazuhide Tsuji T. Ohsaki Yoshizumi Kajii
Journals: Synthesis (4 papers)The Astrophysical Journal (3 papers)Journal of Photochemistry and Photobiology A Chemistry (2 papers)Chemical Physics Letters (2 papers)The Journal of Physical Chemistry A (2 papers)
Partner nations: Japan

In The Last Decade

Keizo Takeda

14 papers receiving 297 citations

Peers

Countries citing papers authored by Keizo Takeda

Since Specialization

Citations

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

Fields of papers citing papers by Keizo Takeda

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside Keizo Takeda, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Keizo Takeda Line = papers co-authored together Keizo Takeda links everyone, so they are left out of the graph.

All Works

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15 of 15 papers shown

#	Work
1	Unusually Large Dynamic Electron Polarization in an O₂(¹Δ_g)−2,2,6,6-Tetramethylpiperidine-1-oxyl Radical System The Journal of Physical Chemistry A ·Masaaki Mitsui, Keizo Takeda, Yasuhiro Kobori, Akio Kawai, Kinichi Obi	2004	15
2	Exchange Interaction in Radical−Triplet Pairs: Evidences for CIDEP Generation by Level Crossings in Triplet−Doublet Interactions The Journal of Physical Chemistry A ·Yasuhiro Kobori, Keizo Takeda, Kazuhide Tsuji, Akio Kawai, Kinichi Obi	1998	73
3	Heats of formation of intermediate radicals in solution Journal of Photochemistry and Photobiology A Chemistry ·Keizo Takeda, Yoshizumi Kajii, Kazuhiko Shibuya, Kinichi Obi	1998	12
4	The first observation of CIDEP generated through the interaction between an excited singlet oxygen molecule and a free radical Chemical Physics Letters ·Masaaki Mitsui, Keizo Takeda, Yasuhiro Kobori, Akio Kawai, Kinichi Obi	1996	23
5	Kinetic studies of the photochemical reaction of C60 with amine in solution Journal of Photochemistry and Photobiology A Chemistry ·Keizo Takeda, Yoshizumi Kajii, Kazuhiko Shibuya	1995	4
6	New measurement of the (12)C(n, gamma)(13)C reaction cross section The Astrophysical Journal ·T. Ohsaki, Y. Nagai, M. Igashira, T. Shima, Keizo Takeda, Hassan Nasser Abdul-Hussein, C. Guitton	1994	50
7	Photochemical reaction of C60 in the presence of triethylamine in toluene Chemical Physics Letters ·Yoshizumi Kajii, Keizo Takeda, Kazuhiko Shibuya	1993	16
8	Spectroscopy of neutron halo nucleus 11Be via the 11B (d, 2He) reaction at 70 MeV Physics Letters B ·H. Sakai, Hiroshi Okamura, S. Ishida, H. Okuno, Nobuhisa Fukunishi, H. Sagawa, A. Okihana, Y. Nagai, Keizo Takeda, T. Toriyama, A. Yoshida	1993	16
9	Measurement of the neutron capture rate of the (C-12)(n,gamma)(C-13) reaction at stellar energy The Astrophysical Journal ·Y. Nagai, M. Igashira, Keizo Takeda, Naruhiko Mukai, Yasuyuki Aoshima, Urazimbetova Yulduzkhan Haydarovna, H. Kitazawa, Tomokazu Fukuda	1991	33
10	Capture rate of the Li-7(n, gamma)Li-8 reaction by prompt gamma-ray detection The Astrophysical Journal ·Y. Nagai, M. Igashira, Naruhiko Mukai, T. Ohsaki, Urazimbetova Yulduzkhan Haydarovna, Keizo Takeda, Vivek M. Bhogade ., H. Kitazawa, S. Kubono, Tomokazu Fukuda	1991	42
11	Neutron capture cross sections of light nuclei in primordial nucleosynthesis Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms ·Y. Nagai, Keizo Takeda, Yasuyuki Aoshima, T. Ohsaki, M. Igashira, Naruhiko Mukai, Urazimbetova Yulduzkhan Haydarovna, Vivek M. Bhogade ., H. Kitazawa, Tomokazu Fukuda	1991	11
12	Application of 3-(2-Aminocarbonylanilino)-2-cyclohexen-1-ones in the Synthesis of 2-Substituted 4-Oxo-3,4-dihydroquinazolines Synthesis ·S. MIYANO, Ho-Yuan Chen, Nobuko Mibu, Keizo Takeda, Kunihiro Sumoto	1983	5
13	Synthesis of 3,4-Dihydrophenazine-1(2H)-ones Synthesis ·S. MIYANO, Ho-Yuan Chen, Keizo Takeda, 佐藤麻衣子, Kunihiro Sumoto	1982	1
14	Reactions of Enamino-ketones; IV¹. Applications of 3-(o-Nitroanilino)-2-cyclohexen-1-ones in the Synthesis of Quinoxaline Monoxides Synthesis ·S. MIYANO, Ho-Yuan Chen, Keizo Takeda, Kunihiro Sumoto	1981	1
15	Synthesis of 1-Methyl-3,4-dihydropyrido[1,2-a]benzimidazoles Synthesis ·S. MIYANO, Ho-Yuan Chen, Keizo Takeda, Kunihiro Sumoto	1978	4

About Keizo Takeda

Keizo Takeda is a scholar working on Radiation, Nuclear and High Energy Physics, Biophysics, Physical and Theoretical Chemistry and Organic Chemistry, having authored 15 papers that have together received 306 indexed citations. Recurring topics across this work include Nuclear Physics and Applications (5 papers), Nuclear physics research studies (5 papers), Photochemistry and Electron Transfer Studies (3 papers), Synthesis and Characterization of Heterocyclic Compounds (2 papers), Graphene research and applications (2 papers), Polymer Nanocomposite Synthesis and Irradiation (2 papers), Fullerene Chemistry and Applications (2 papers) and Spectroscopy and Quantum Chemical Studies (2 papers). The work is most often cited by research in Nuclear and High Energy Physics (141 citations), Biophysics (62 citations), Physical and Theoretical Chemistry (90 citations), Radiation (82 citations) and Atomic and Molecular Physics, and Optics (76 citations). Keizo Takeda has collaborated with scholars based in Japan. Frequent co-authors include Kinichi Obi, Akio Kawai, Yasuhiro Kobori, Y. Nagai, M. Igashira, Kazuhide Tsuji, T. Ohsaki, Yoshizumi Kajii, Kazuhiko Shibuya and Tomokazu Fukuda. Their work appears in journals such as Synthesis, The Astrophysical Journal, Journal of Photochemistry and Photobiology A Chemistry, Chemical Physics Letters and The Journal of Physical Chemistry A.

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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