Katsuhiko Ohnuma

33 total papers · 577 total citations
24 papers, 464 citations indexed

About

Katsuhiko Ohnuma is a scholar working on Public Health, Environmental and Occupational Health, Genetics and Molecular Biology. According to data from OpenAlex, Katsuhiko Ohnuma has authored 24 papers receiving a total of 464 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Public Health, Environmental and Occupational Health, 11 papers in Genetics and 10 papers in Molecular Biology. Recurrent topics in Katsuhiko Ohnuma's work include Reproductive Biology and Fertility (16 papers), Sperm and Testicular Function (10 papers) and Reproductive Physiology in Livestock (6 papers). Katsuhiko Ohnuma is often cited by papers focused on Reproductive Biology and Fertility (16 papers), Sperm and Testicular Function (10 papers) and Reproductive Physiology in Livestock (6 papers). Katsuhiko Ohnuma collaborates with scholars based in Japan, Indonesia and Hungary. Katsuhiko Ohnuma's co-authors include Junko Noguchi, Hiroyuki Kaneko, Kazuhiro Kikuchi, Manabu Ozawa, Takashi Nagai, N. Maedomari, Mokhamad Fahrudin, Ni Wayan Kurniani Karja, Naomi Kashiwazaki and Michiko Nakai and has published in prestigious journals such as Reproduction, Theriogenology and Animal Reproduction Science.

In The Last Decade

Katsuhiko Ohnuma

24 papers receiving 454 citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Katsuhiko Ohnuma 368 222 189 108 72 24 464
Jeong‐Mook Lim 395 1.1× 213 1.0× 212 1.1× 119 1.1× 29 0.4× 16 526
Thierry Joly 261 0.7× 190 0.9× 147 0.8× 94 0.9× 75 1.0× 45 509
A.E.M. Horta 287 0.8× 211 1.0× 124 0.7× 96 0.9× 162 2.3× 28 538
Frank B. Kuzan 251 0.7× 222 1.0× 100 0.5× 148 1.4× 60 0.8× 23 517
Françoise Berthelot 406 1.1× 255 1.1× 169 0.9× 124 1.1× 60 0.8× 11 470
Sylvia J. Bedford-Guaus 337 0.9× 314 1.4× 165 0.9× 51 0.5× 102 1.4× 16 542
José Luiz Rodrigues 407 1.1× 256 1.2× 169 0.9× 110 1.0× 60 0.8× 55 482
Szilárd Bodó 213 0.6× 114 0.5× 239 1.3× 90 0.8× 33 0.5× 19 418
S.A. Voelkel 428 1.2× 216 1.0× 139 0.7× 162 1.5× 116 1.6× 28 518
Rajadurai Rajamahendran 379 1.0× 204 0.9× 161 0.9× 144 1.3× 183 2.5× 13 540

Countries citing papers authored by Katsuhiko Ohnuma

Since Specialization
Citations

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

Fields of papers citing papers by Katsuhiko Ohnuma

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Katsuhiko Ohnuma

This figure shows the co-authorship network connecting the top 25 collaborators of Katsuhiko Ohnuma. A scholar is included among the top collaborators of Katsuhiko Ohnuma 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 Katsuhiko Ohnuma. Katsuhiko Ohnuma is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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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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2026