Kohei Oka

45 papers and 274 indexed citations i.

About

Kohei Oka is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Materials Chemistry. According to data from OpenAlex, Kohei Oka has authored 45 papers receiving a total of 274 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Surgery, 13 papers in Pulmonary and Respiratory Medicine and 10 papers in Materials Chemistry. Recurrent topics in Kohei Oka’s work include Catalytic Processes in Materials Science (9 papers), Gastric Cancer Management and Outcomes (6 papers) and Pancreatic and Hepatic Oncology Research (6 papers). Kohei Oka is often cited by papers focused on Catalytic Processes in Materials Science (9 papers), Gastric Cancer Management and Outcomes (6 papers) and Pancreatic and Hepatic Oncology Research (6 papers). Kohei Oka collaborates with scholars based in Japan and United States. Kohei Oka's co-authors include Hideaki Kasai, Toshiyuki Komaki, Keizo Kagawa, Toshifumi Tsuji, Takashi Okuda, Tasuku Hara, N. Iwai, Akitaka Yoshigoe, Yoshito Itoh and Michio Okada and has published in prestigious journals such as Environmental Science & Technology, PLoS ONE and Chemical Communications.

In The Last Decade

Co-authorship network of co-authors of Kohei Oka i

Fields of papers citing papers by Kohei Oka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Kohei Oka

Since Specialization
Citations

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

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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2025