Keiichi Okajima

54 papers and 662 indexed citations i.

About

Keiichi Okajima is a scholar working on Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment and Automotive Engineering. According to data from OpenAlex, Keiichi Okajima has authored 54 papers receiving a total of 662 indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Electrical and Electronic Engineering, 30 papers in Renewable Energy, Sustainability and the Environment and 9 papers in Automotive Engineering. Recurrent topics in Keiichi Okajima’s work include Fuel Cells and Related Materials (21 papers), Electrocatalysts for Energy Conversion (15 papers) and Photovoltaic System Optimization Techniques (9 papers). Keiichi Okajima is often cited by papers focused on Fuel Cells and Related Materials (21 papers), Electrocatalysts for Energy Conversion (15 papers) and Photovoltaic System Optimization Techniques (9 papers). Keiichi Okajima collaborates with scholars based in Japan and Poland. Keiichi Okajima's co-authors include Masao Sudoh, Yohji Uchiyama, Atsushi Ikeda, Koji Makino, Yoshihiro Hishikawa, Masahiro Yoshita, Takashi Oozeki, Jun Okano, Isao Sakata and Manabu Ihara and has published in prestigious journals such as Journal of The Electrochemical Society, Journal of Power Sources and Applied Energy.

In The Last Decade

Co-authorship network of co-authors of Keiichi Okajima i

Fields of papers citing papers by Keiichi Okajima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Keiichi Okajima

Since Specialization
Citations

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