Ryo Hanai

2.2k total citations
92 papers, 1.8k citations indexed

About

Ryo Hanai is a scholar working on Molecular Biology, Cancer Research and Plant Science. According to data from OpenAlex, Ryo Hanai has authored 92 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 68 papers in Molecular Biology, 23 papers in Cancer Research and 22 papers in Plant Science. Recurrent topics in Ryo Hanai's work include Plant Toxicity and Pharmacological Properties (43 papers), Natural product bioactivities and synthesis (41 papers) and Sesquiterpenes and Asteraceae Studies (23 papers). Ryo Hanai is often cited by papers focused on Plant Toxicity and Pharmacological Properties (43 papers), Natural product bioactivities and synthesis (41 papers) and Sesquiterpenes and Asteraceae Studies (23 papers). Ryo Hanai collaborates with scholars based in Japan, China and United States. Ryo Hanai's co-authors include Xun Gong, Chiaki Kuroda, Motoo Tori, J C Wang, Yasuko Okamoto, Paul R. Caron, Akiyoshi Wada, Hajime Nagano, Yuemao Shen and Yoshinori Saito and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Biological Chemistry and Journal of Molecular Biology.

In The Last Decade

Ryo Hanai

87 papers receiving 1.7k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ryo Hanai Japan 25 1.4k 454 397 181 166 92 1.8k
Miguel Garcı́a-Dı́az United States 34 3.3k 2.3× 524 1.2× 348 0.9× 504 2.8× 158 1.0× 80 3.7k
Петр В. Сергиев Russia 33 2.5k 1.8× 210 0.5× 184 0.5× 568 3.1× 117 0.7× 171 3.1k
Pencho Venkov Bulgaria 20 1.1k 0.8× 96 0.2× 354 0.9× 160 0.9× 45 0.3× 78 1.4k
Guanglin Li China 21 1.2k 0.9× 385 0.8× 750 1.9× 65 0.4× 22 0.1× 52 1.8k
Mohammed Bellaoui Morocco 22 2.1k 1.5× 99 0.2× 1.1k 2.8× 128 0.7× 153 0.9× 41 2.8k
Todd L. Capson Panama 24 752 0.5× 101 0.2× 180 0.5× 169 0.9× 368 2.2× 42 1.6k
Qianjin Kang China 20 784 0.6× 147 0.3× 181 0.5× 58 0.3× 201 1.2× 59 1.3k
Sladjana Prišić United States 18 1.1k 0.8× 97 0.2× 191 0.5× 196 1.1× 21 0.1× 25 1.5k
Yinhua Lü China 26 1.5k 1.1× 290 0.6× 252 0.6× 271 1.5× 208 1.3× 84 2.2k

Countries citing papers authored by Ryo Hanai

Since Specialization
Citations

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

Fields of papers citing papers by Ryo Hanai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryo Hanai

This figure shows the co-authorship network connecting the top 25 collaborators of Ryo Hanai. A scholar is included among the top collaborators of Ryo Hanai 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 Ryo Hanai. Ryo Hanai 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.
Kuroda, Chiaki, Ryo Hanai, Motoo Tori, et al.. (2014). Diversity in Furanoeremophilane Composition Produced by Ligularia Species (Asteraceae) in the Hengduan Mountains Area of China. Journal of Synthetic Organic Chemistry Japan. 72(6). 717–725. 24 indexed citations
2.
3.
Hanai, Ryo, et al.. (2014). Chemical and Genetic Studies on Hybrid of Ligularia subspicata and Ligularia cyathiceps Collected in Yunnan Province of China. Chemistry & Biodiversity. 11(9). 1438–1448. 13 indexed citations
4.
Saito, Yoshinori, Yasuko Okamoto, Ryo Hanai, et al.. (2013). Chemical and genetic diversity of Cremanthodium lineare. Phytochemistry. 96. 184–190. 10 indexed citations
5.
Nagano, Hajime, Ryo Hanai, Yui Miura, et al.. (2012). Chemical and Genetic Study of Ligularia duciformis and Related Species in Sichuan and Yunnan Provinces of China. Chemistry & Biodiversity. 9(4). 789–805. 22 indexed citations
6.
Kawasaki, Hiromichi, et al.. (2011). Biological properties of a novel paddy herbicide pyrimisulfan.. JOURNAL OF WEED SCIENCE RESEARCH. 18. 6–13. 1 indexed citations
7.
Umino, M, et al.. (2011). Mode of DNA binding by SopA protein of Escherichia coli F plasmid. The Journal of Biochemistry. 149(4). 455–461. 7 indexed citations
8.
Kuroda, Chiaki, et al.. (2009). Chemical and Genetic Differentiation of Ligularia hodgsonii in Japan and China. Chemistry & Biodiversity. 6(12). 2184–2191. 11 indexed citations
9.
Kuroda, Chiaki, Xun Gong, Yuemao Shen, et al.. (2007). Chemical and Genetic Diversity of Ligularia latihastata and Ligularia villosa in Yunnan Province of China. Chemistry & Biodiversity. 4(9). 2210–2217. 23 indexed citations
10.
Hanai, Ryo, et al.. (2004). Application of mixture pyriminobac-methyl, a rice herbicide on barnyardgrass with Bentazone. Journal of Weed Science and Technology. 49(Supplement). 206–207. 2 indexed citations
11.
Hanai, Ryo, et al.. (2004). Shoot-regeneration method: a simplified method of evaluating sulfonylurea herbicide resistance. Journal of Weed Science and Technology. 49(4). 277–283. 6 indexed citations
12.
Yokota, Shuichi, et al.. (2003). Occurrence and management of sulfonylurea-resistant Scirpus Junocoides in South Tohoku area. Journal of Weed Science and Technology. 48(Supplement). 34–35. 1 indexed citations
13.
Ohno, Shoji, et al.. (2003). Easy Method for judgment of SU resistance using foliage regeneration of S. juncoides, M. vaginalis and Lindernia spp.. Journal of Weed Science and Technology. 48(Supplement). 32–33. 1 indexed citations
14.
Hanai, Ryo & Joaquím Roca. (2003). Two-Dimensional Agarose-Gel Electrophoresis of DNA Topoisomers. Humana Press eBooks. 94. 19–28. 5 indexed citations
15.
Kobayashi, Masaki & Ryo Hanai. (2001). M Phase-Specific Association of Human Topoisomerase IIIβ with Chromosomes. Biochemical and Biophysical Research Communications. 287(1). 282–287. 12 indexed citations
16.
Hanai, Ryo, Ruiping Liu, Piero Benedetti, et al.. (1996). Molecular Dissection of a Protein SopB Essential for F Plasmid Partition. Journal of Biological Chemistry. 271(29). 17469–17475. 54 indexed citations
17.
Sharma, Amit, Ryo Hanai, & Alfonso Mondragón. (1994). Crystal structure of the amino-terminal fragment of vaccinia virus DNA topoisomerase I at 1.6 å resolution. Structure. 2(8). 767–777. 61 indexed citations
18.
Hanai, Ryo & Akiyoshi Wada. (1990). Doublet preference and gene evolution. Journal of Molecular Evolution. 30(2). 109–115. 14 indexed citations
19.
Hanai, Ryo & Akiyoshi Wada. (1989). Novel third-letter bias in Escherichia coli codons revealed by rigorous treatment of coding constraints. Journal of Molecular Biology. 207(4). 655–660. 12 indexed citations
20.
Hanai, Ryo, Akira Suyama, & Akiyoshi Wada. (1988). Vestiges of lost introns in the thermal stability map of DNA. FEBS Letters. 226(2). 247–249. 2 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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