Ryoka Matsushima

1.5k total citations
80 papers, 1.3k citations indexed

About

Ryoka Matsushima is a scholar working on Organic Chemistry, Materials Chemistry and Inorganic Chemistry. According to data from OpenAlex, Ryoka Matsushima has authored 80 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 40 papers in Organic Chemistry, 40 papers in Materials Chemistry and 16 papers in Inorganic Chemistry. Recurrent topics in Ryoka Matsushima's work include Photochromic and Fluorescence Chemistry (29 papers), Radical Photochemical Reactions (18 papers) and Radioactive element chemistry and processing (14 papers). Ryoka Matsushima is often cited by papers focused on Photochromic and Fluorescence Chemistry (29 papers), Radical Photochemical Reactions (18 papers) and Radioactive element chemistry and processing (14 papers). Ryoka Matsushima collaborates with scholars based in Japan and Jordan. Ryoka Matsushima's co-authors include Yoshiumi Kohno, Naomichi Okamoto, Hiroshi Sakaguchi, Masashi Shibata, Akihiko Tomoda, Masakazu Suzuki, Hiroyuki Kageyama, Yasumasa Tomita, Kenkichiro Kobayashi and Hisao Suzuki and has published in prestigious journals such as Journal of the American Chemical Society, Applied Physics Letters and Journal of Materials Chemistry.

In The Last Decade

Ryoka Matsushima

80 papers receiving 1.2k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ryoka Matsushima Japan 23 743 476 265 248 126 80 1.3k
Pietro Bortolus Italy 20 831 1.1× 813 1.7× 103 0.4× 629 2.5× 73 0.6× 82 1.6k
Geoffrey Hallas United Kingdom 18 557 0.7× 1.3k 2.8× 129 0.5× 312 1.3× 72 0.6× 92 2.1k
Klaus Hunger Germany 13 396 0.5× 431 0.9× 172 0.6× 123 0.5× 60 0.5× 22 1.3k
L. Allouche France 23 702 0.9× 659 1.4× 406 1.5× 77 0.3× 206 1.6× 33 1.7k
Tarek A. Fayed Egypt 21 598 0.8× 549 1.2× 163 0.6× 352 1.4× 129 1.0× 82 1.3k
Elżbieta Luboch Poland 19 515 0.7× 437 0.9× 110 0.4× 133 0.5× 56 0.4× 86 1.1k
Frances L. Cozens Canada 23 403 0.5× 598 1.3× 290 1.1× 488 2.0× 22 0.2× 59 1.4k
G. Varani Italy 18 658 0.9× 375 0.8× 214 0.8× 230 0.9× 135 1.1× 33 1.2k
Waichiro Tagaki Japan 22 348 0.5× 1.0k 2.2× 158 0.6× 120 0.5× 83 0.7× 141 1.7k
Heinz Mustroph Germany 17 594 0.8× 352 0.7× 34 0.1× 322 1.3× 85 0.7× 70 1.0k

Countries citing papers authored by Ryoka Matsushima

Since Specialization
Citations

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

Fields of papers citing papers by Ryoka Matsushima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryoka Matsushima

This figure shows the co-authorship network connecting the top 25 collaborators of Ryoka Matsushima. A scholar is included among the top collaborators of Ryoka Matsushima 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 Ryoka Matsushima. Ryoka Matsushima 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.
Kohno, Yoshiumi, Shuji Ikoma, Masashi Shibata, et al.. (2010). Stabilization of Flavylium Dye by Incorporation into Bentonite Clay. Journal of the Japan Society of Colour Material. 83(3). 103–107. 6 indexed citations
2.
Kohno, Yoshiumi, Shuji Ikoma, Keiko Yoda, et al.. (2009). Photostability enhancement of anionic natural dye by intercalation into hydrotalcite. Journal of Colloid and Interface Science. 337(1). 117–121. 49 indexed citations
3.
Kohno, Yoshiumi, et al.. (2007). Stabilization of Flavylium Dyes by Incorporation in the Clay Interlayer. Journal of the Japan Society of Colour Material. 80(1). 6–12. 24 indexed citations
4.
Takahashi, Hiroyuki, et al.. (2004). A photon‐mode full‐color rewritable image using photochromic compounds. Journal of the Society for Information Display. 12(1). 81–85. 24 indexed citations
5.
Matsushima, Ryoka, et al.. (2003). Vapochromism of Ionic Dyes in Thin Films of Sugar Gels. Bulletin of the Chemical Society of Japan. 76(6). 1279–1283. 23 indexed citations
6.
Matsushima, Ryoka, et al.. (2001). Low-Temperature Poling of Dye-Doped Polymers for Nonlinear Optical Devices. Chemistry Letters. 30(3). 200–201. 2 indexed citations
7.
Matsushima, Ryoka, et al.. (2001). Improvements in the fatigue resistances of photochromic compounds. Journal of Photochemistry and Photobiology A Chemistry. 139(1). 63–69. 35 indexed citations
8.
Horiuchi, Hiroaki, et al.. (2000). Photochromism of 2-Hydroxy-4′-methoxychalcone: A Novel Photon-Mode Erasable Optical Memory System with Nondestructive Readout Ability. Chemistry Letters. 29(2). 96–97. 21 indexed citations
9.
Hashimoto, Hideki, et al.. (1998). Observation of Solitonlike Excitations in All- trans-β-Carotene Single Crystals. Japanese Journal of Applied Physics. 37(4R). 1911–1911. 11 indexed citations
10.
Nakayama, Hideki, et al.. (1996). Second-order nonlinearity of nonpoled polymeric thin films doped with pyrylium salts with blue window characteristics. Applied Physics Letters. 69(19). 2813–2815. 6 indexed citations
11.
Matsushima, Ryoka, et al.. (1994). Second-Harmonic Generation from Single and Mixed Crystals of p-Nitroaniline and Its Derivatives. Bulletin of the Chemical Society of Japan. 67(5). 1479–1482. 1 indexed citations
12.
Tomoda, Akihiko, Hideki Tsuboi, Akira Kaneko, & Ryoka Matsushima. (1993). Photochromic Performance of N-Benzylimide Derivative of Fulgide.. NIPPON KAGAKU KAISHI. 209–212. 1 indexed citations
13.
Matsushima, Ryoka & Masakazu Suzuki. (1992). Photochromic Properties of 2-Hydroxychalcones in Solution and Polymers. Bulletin of the Chemical Society of Japan. 65(1). 39–45. 38 indexed citations
14.
Okamoto, Naomichi, et al.. (1990). Large second harmonic generation from mixtures of para-nitroaniline and its N-alkyl derivatives. Optics Communications. 74(6). 421–424. 15 indexed citations
15.
Matsushima, Ryoka, et al.. (1980). Photoreactions of Flavanones. Bulletin of the Chemical Society of Japan. 53(10). 2938–2942. 5 indexed citations
16.
Suzuki, Morio, et al.. (1976). Photoreactions of Cyclic Benzylidene Acetals with Ketones in the Presence and Absence of Dissolved Oxygen. Bulletin of the Chemical Society of Japan. 49(6). 1585–1589. 2 indexed citations
17.
Matsushima, Ryoka, et al.. (1972). FORMATION OF BIACETYL IN THE PHOTOOXIDATION OF ACETALDEHYDE WITH THE URANYL ION. Chemistry Letters. 1(10). 911–912. 1 indexed citations
18.
Matsushima, Ryoka. (1972). Mechanism of quenching of the uranyl fluorescence by organic compounds. Journal of the American Chemical Society. 94(17). 6010–6016. 70 indexed citations
19.
Matsushima, Ryoka, et al.. (1972). Reduction of the mercuric ion induced by the photolysis of the uranyl-organic systems. Journal of the American Chemical Society. 94(8). 2622–2625. 4 indexed citations
20.
Matsushima, Ryoka, et al.. (1971). Photochemical Reactions of Uranyl Ions with Organic Compounds III. The Correlation between the Reaction Mode and the Pre-Equilibrium in the Photolysis of the Uranyl-lactate System. Bulletin of the Chemical Society of Japan. 44(5). 1278–1281. 3 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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