Keichi Oshima

522 total citations
59 papers, 391 citations indexed

About

Keichi Oshima is a scholar working on Materials Chemistry, Organic Chemistry and Polymers and Plastics. According to data from OpenAlex, Keichi Oshima has authored 59 papers receiving a total of 391 indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Materials Chemistry, 16 papers in Organic Chemistry and 16 papers in Polymers and Plastics. Recurrent topics in Keichi Oshima's work include Polymer Nanocomposite Synthesis and Irradiation (11 papers), Photopolymerization techniques and applications (10 papers) and Radiation Effects and Dosimetry (9 papers). Keichi Oshima is often cited by papers focused on Polymer Nanocomposite Synthesis and Irradiation (11 papers), Photopolymerization techniques and applications (10 papers) and Radiation Effects and Dosimetry (9 papers). Keichi Oshima collaborates with scholars based in Japan and United States. Keichi Oshima's co-authors include Yoneho Tabata, Kenkichi Ishigure, Hiroshi Nagano, Hidetarô Abe, Norihiko Fujita, Tomohiro Tamura, Hazime Kusumoto, Hiroshi Sobue, Yosuke Katsumura and Wataru Ito and has published in prestigious journals such as The Journal of Chemical Physics, Macromolecules and The Journal of Physical Chemistry.

In The Last Decade

Keichi Oshima

54 papers receiving 365 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Keichi Oshima Japan 11 163 120 76 43 43 59 391
M. Magat France 11 124 0.8× 127 1.1× 147 1.9× 25 0.6× 55 1.3× 32 373
B. A. Dunell Canada 13 194 1.2× 97 0.8× 63 0.8× 206 4.8× 15 0.3× 54 474
Stoil Dirlikov United States 12 182 1.1× 206 1.7× 158 2.1× 97 2.3× 10 0.2× 19 604
Takuo Takeshita Japan 14 212 1.3× 30 0.3× 62 0.8× 28 0.7× 6 0.1× 27 428
E.J. Sonneveld Netherlands 12 458 2.8× 50 0.4× 85 1.1× 29 0.7× 41 1.0× 31 695
Peter W. Kopf United States 9 89 0.5× 55 0.5× 82 1.1× 36 0.8× 4 0.1× 14 283
Sumio Ichiba Japan 13 500 3.1× 56 0.5× 106 1.4× 43 1.0× 4 0.1× 50 666
J.T. Davies United Kingdom 4 186 1.1× 57 0.5× 82 1.1× 53 1.2× 3 0.1× 4 488
T. Apple United States 13 245 1.5× 43 0.4× 66 0.9× 110 2.6× 5 0.1× 32 458
S. L. Chang Taiwan 13 299 1.8× 60 0.5× 258 3.4× 20 0.5× 15 0.3× 27 535

Countries citing papers authored by Keichi Oshima

Since Specialization
Citations

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

Fields of papers citing papers by Keichi Oshima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keichi Oshima

This figure shows the co-authorship network connecting the top 25 collaborators of Keichi Oshima. A scholar is included among the top collaborators of Keichi Oshima 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 Keichi Oshima. Keichi Oshima 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.
Oshima, Keichi. (1984). Technological innovation and industrial research in Japan. Research Policy. 13(5). 285–301. 13 indexed citations
2.
Ishigure, Kenkichi, et al.. (1980). Fluorine-19 Nuclear Magnetic Resonance of Tetrafluoroethylene-Olefin Terpolymers. Macromolecules. 13(6). 1630–1634. 1 indexed citations
3.
Ishigure, Kenkichi, et al.. (1980). ESR study of irradiated single crystals of amino acids—II. Radiation Physics and Chemistry (1977). 16(4). 289–294. 3 indexed citations
4.
Tamura, Tomohiro, et al.. (1977). . NIPPON KAGAKU KAISHI. 722–728. 1 indexed citations
5.
Ishigure, Kenkichi, Hirotada Ohashi, Yoneho Tabata, & Keichi Oshima. (1977). Fluorine-19 Nuclear Magnetic Resonance of Trifluoroethylene-Isobutylene Copolymers Prepared by γ-Ray Induced Copolymerization. Head-to-Head and Tail-to-Tail Structures. Macromolecules. 10(3). 567–572. 2 indexed citations
6.
Kimura, K., et al.. (1975). ESR study on the spatial distribution of radicals trapped in the heavy ion-irradiated n-eicosane single crystal. The Journal of Chemical Physics. 63(5). 1797–1802. 18 indexed citations
7.
Katsumura, Yosuke, et al.. (1974). Electron spin polarization effects in a study of transient hydrogen atoms in acidic ices under electron irradiation. The Journal of Physical Chemistry. 78(13). 1336–1337. 6 indexed citations
8.
Tagawa, Seiichi, Shigeyoshi Arai, Akira Kira, et al.. (1972). Pulse radiolysis study of polymerization of vinylcarbazole in benzonitrile solutions. Journal of Polymer Science Part B Polymer Letters. 10(4). 295–299. 10 indexed citations
9.
10.
Tabata, Yoneho, et al.. (1970). Electron Spin Resonance of Primary Process in Radiation Induced Solid State Polymerization of Ethylene by Matrix-Isolation Technique. The Journal of the Society of Chemical Industry Japan. 73(6). 1220–1227. 1 indexed citations
11.
Mori, Kōichi, Yoneho Tabata, & Keichi Oshima. (1970). Electron Spin Resonance Studies on Radiation Induced Solid State Polymerization of Methacrylonitrile. The Journal of the Society of Chemical Industry Japan. 73(11). 2475–2478.
12.
Mori, Kōichi, Yoneho Tabata, & Keichi Oshima. (1970). Effect of Magnetic Field on Radiation-Induced Solid State Polymerization of Acrylonitrile at Low Temperature. The Journal of the Society of Chemical Industry Japan. 73(6). 1215–1220. 2 indexed citations
13.
Nishimura, Híromichi, Naoyuki Tamura, Yoneho Tabata, & Keichi Oshima. (1970). Electron Spin Resonance of Active Species Produced in r-Irradiated Propylene at -196°C. The Journal of the Society of Chemical Industry Japan. 73(6). 1227–1233. 1 indexed citations
14.
Ishigure, Kenkichi, Yoneho Tabata, Keichi Oshima, & Hiroshi Sobue. (1965). Radiation-Induced Coplymerization of Tetrafluoroethylene with Isobutylene. I. Synthesis of the Copolymer. The Journal of the Society of Chemical Industry Japan. 68(3). 558–561.
15.
Tabata, Yoneho, et al.. (1964). Radiation-Induced Copolymerization, of Maleic Anhydride with Styrene. The Journal of the Society of Chemical Industry Japan. 67(12). 2156–2159. 1 indexed citations
16.
Tabata, Yoneho, Kenkichi Ishigure, Keichi Oshima, & Hiroshi Sobue. (1964). Copolymerization of tetrafluoroethylene with isobutene induced by ionizing radiation. Journal of Polymer Science Part A General Papers. 2(5). 2445–2453. 9 indexed citations
17.
Oshima, Keichi. (1962). Solvent Extraction of Metals by Organophosphorus Compounds, (I). Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan. 4(1). 8–16. 5 indexed citations
18.
Oshima, Keichi, et al.. (1956). Luminescene Spectra of Samarium in Barium Titanate at Its Transition. The Journal of Chemical Physics. 24(4). 903–904. 8 indexed citations
19.
Abe, Hidetarô, et al.. (1956). Magnetic Resonance Absorption Caused by Additional Paramagnetic Impurities in Alkali Halides. The Journal of Chemical Physics. 25(2). 378–379. 14 indexed citations
20.
Oshima, Keichi, et al.. (1955). Paramagnetic Resonance of NaCl Crystals Containing Additions of Manganese Impurity. The Journal of Chemical Physics. 23(9). 1721–1722. 21 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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