Ryuichi Oshima

1.4k total citations
50 papers, 1.2k citations indexed

About

Ryuichi Oshima is a scholar working on Organic Chemistry, Molecular Biology and Polymers and Plastics. According to data from OpenAlex, Ryuichi Oshima has authored 50 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Organic Chemistry, 13 papers in Molecular Biology and 10 papers in Polymers and Plastics. Recurrent topics in Ryuichi Oshima's work include Analytical Chemistry and Chromatography (6 papers), Synthesis and properties of polymers (6 papers) and Polysaccharides and Plant Cell Walls (6 papers). Ryuichi Oshima is often cited by papers focused on Analytical Chemistry and Chromatography (6 papers), Synthesis and properties of polymers (6 papers) and Polysaccharides and Plant Cell Walls (6 papers). Ryuichi Oshima collaborates with scholars based in Japan and India. Ryuichi Oshima's co-authors include Ju Kumanotani, Yoshio Yamauchi, Kei Matsuzaki, Takaya Sato, Kenichi Hatanaka, Kaname Katsuraya, Kohsaku Okuyama, Yumin Du, Toshiyuki Uryu and Haruki Ohkawa and has published in prestigious journals such as Macromolecules, Carbohydrate Polymers and The Journal of Organic Chemistry.

In The Last Decade

Ryuichi Oshima

48 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ryuichi Oshima Japan 19 391 369 265 182 157 50 1.2k
Ju Kumanotani Japan 21 231 0.6× 361 1.0× 78 0.3× 267 1.5× 138 0.9× 81 1.3k
Simona Carmen Lițescu Romania 21 176 0.5× 367 1.0× 113 0.4× 72 0.4× 36 0.2× 66 1.2k
Jacek Kozioł Poland 18 141 0.4× 247 0.7× 98 0.4× 375 2.1× 70 0.4× 72 1.3k
R. T. O’Connor United States 15 131 0.3× 111 0.3× 86 0.3× 155 0.9× 89 0.6× 41 737
Z. Jurašeková Slovakia 15 41 0.1× 245 0.7× 82 0.3× 128 0.7× 80 0.5× 34 1.0k
Salvatore Fisichella Italy 15 110 0.3× 167 0.5× 45 0.2× 303 1.7× 29 0.2× 70 752
Raquel García Portugal 23 263 0.7× 249 0.7× 428 1.6× 362 2.0× 11 0.1× 58 1.4k
Israel Goldberg Israel 21 179 0.5× 692 1.9× 161 0.6× 207 1.1× 37 0.2× 28 1.4k
Shane A. Seabrook Australia 16 102 0.3× 323 0.9× 184 0.7× 199 1.1× 99 0.6× 22 984
Kari Daasvatn Netherlands 14 214 0.5× 113 0.3× 58 0.2× 197 1.1× 33 0.2× 43 767

Countries citing papers authored by Ryuichi Oshima

Since Specialization
Citations

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

Fields of papers citing papers by Ryuichi Oshima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryuichi Oshima

This figure shows the co-authorship network connecting the top 25 collaborators of Ryuichi Oshima. A scholar is included among the top collaborators of Ryuichi 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 Ryuichi Oshima. Ryuichi 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.
Katabami, Takuyuki, et al.. (2023). A rare case of multiple paragangliomas in the head and neck, retroperitoneum and duodenum: A case report and review of the literature. Frontiers in Endocrinology. 13. 1054468–1054468. 4 indexed citations
2.
Naito, Masanori, Yusuke Kikuchi, Ryuichi Oshima, et al.. (2023). [A Case of Rhabdomyolysis Caused by Oxaliplatin during Postoperative Adjuvant Chemotherapy].. PubMed. 50(2). 233–235.
3.
Kōmoto, Tadashi, et al.. (1992). A Micro FTIR Study of Polymer Surfaces by the Carbon Replica Method.. KOBUNSHI RONBUNSHU. 49(4). 383–387. 3 indexed citations
4.
Oshima, Ryuichi, et al.. (1988). Synthesis and photogeneration properties of copolyacrylate having carbazole donor and trinitrofluorenone acceptor chromophores. Journal of Polymer Science Part A Polymer Chemistry. 26(4). 1239–1248. 3 indexed citations
5.
Uryu, Toshiyuki, et al.. (1988). Electronic properties of an electron donor-acceptor polymer blend. Macromolecules. 21(6). 1888–1890. 7 indexed citations
6.
Oshima, Ryuichi, et al.. (1988). Coupling reactions of 4-tert-butyl-o-benzoquinone with olefinic compounds. The Journal of Organic Chemistry. 53(13). 3073–3080. 18 indexed citations
7.
Oshima, Ryuichi, et al.. (1988). Spin-Trapped Alkyl Radicals in Dehydrogenation of Alkenes with 4-t-Butyl-o-benzoquinone. Chemistry Letters. 17(4). 637–640. 1 indexed citations
8.
Oshima, Ryuichi, et al.. (1988). Electron-donor-acceptor copolyacrylates with high photosensitivity. Macromolecules. 21(5). 1536–1538. 9 indexed citations
9.
Matsuzaki, Kei, Iwao Yamamoto, Takaya Sato, & Ryuichi Oshima. (1986). Synthesis of water‐soluble polysaccharides and their antitumor activity, 2. Branched polysaccharides from curdlan and curdlan acetate. Die Makromolekulare Chemie. 187(2). 317–324. 14 indexed citations
10.
Matsuzaki, Kei, Takaya Sato, Iwao Yamamoto, et al.. (1986). Synthesis of water-soluble, branched polysaccharides having d-mannopyranose, d-arabinofuranose, or oligo-d-arabinofuranose side-chains and their antitumor activity. Carbohydrate Research. 157. 171–182. 24 indexed citations
11.
Oshima, Ryuichi, Toshiyuki Uryu, & Manabu Senō. (1985). Improved hole mobility of polyacrylate having a carbazole chromophore. Macromolecules. 18(5). 1043–1045. 10 indexed citations
12.
Du, Yumin, Ryuichi Oshima, Yoshio Yamauchi, & Ju Kumanotani. (1985). 3-(ω-Phenylalkyl)catechols: novel phenolic lipids found in sap of the Burmese lac tree, Melanorrhoea usitate. Journal of the Chemical Society Chemical Communications. 630–631. 11 indexed citations
13.
Du, Yumin & Ryuichi Oshima. (1985). Analysis of long-chan phenols in the sap of the burmese lac tree, melanorrhoea usitate by capillary gas—liquid chromatography. Journal of Chromatography A. 318. 378–383. 13 indexed citations
14.
Oshima, Ryuichi, Mukul Biswas, Tatsuo Wada, & Toshiyuki Uryu. (1985). Hole transport property of poly(2‐N‐carbazolylethyl methacrylate). Journal of Polymer Science Polymer Letters Edition. 23(3). 151–154. 8 indexed citations
15.
Chen, Yen‐Yuan, et al.. (1985). Oxidation and degradation of maltose and isomaltose by persulfate. Carbohydrate Research. 141(1). 77–89. 3 indexed citations
16.
Matsuzaki, Kei, Iwao Yamamoto, Takaya Sato, & Ryuichi Oshima. (1985). Synthesis of water‐soluble branched polysaccharides and their antitumor activity, 1. Branched polysaccharides from cellulose acetate. Die Makromolekulare Chemie. 186(3). 449–456. 26 indexed citations
17.
Oshima, Ryuichi & Tatsuo Wada. (1984). . Journal of Synthetic Organic Chemistry Japan. 42(3). 213–224. 2 indexed citations
18.
Du, Yumin, et al.. (1984). High-resolution gas—liquid chromatographic analysis of urushiol of the lac tree, rhus vernicifera, without derivatization. Journal of Chromatography A. 295. 179–186. 36 indexed citations
19.
Chen, Yen‐Yuan, Ryuichi Oshima, & Ju Kumanotani. (1983). Thermally Derived Dimers of o-Vinylphenol: trans- and cis-2′-Hydroxy-4-methylflavans. Bulletin of the Chemical Society of Japan. 56(8). 2533–2534. 5 indexed citations
20.
Oshima, Ryuichi, Akira Yoshikawa, & Ju Kumanotani. (1981). High-resolution gas chromatographic separation of alditol acetates on fused-silica wall-coated open-tubular columns. Journal of Chromatography A. 213(1). 142–145. 20 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Ju Kumanotani Breakdown of academic impact, for papers by Simona Carmen Lițescu Breakdown of academic impact, for papers by Jacek Kozioł Breakdown of academic impact, for papers by R. T. O’Connor Breakdown of academic impact, for papers by Z. Jurašeková Breakdown of academic impact, for papers by Salvatore Fisichella Breakdown of academic impact, for papers by Raquel García Breakdown of academic impact, for papers by Israel Goldberg Breakdown of academic impact, for papers by Shane A. Seabrook Breakdown of academic impact, for papers by Kari Daasvatn
Rankless by CCL
2026