K. Sumiyama

425 total papers · 6.9k total citations
352 papers, 5.7k citations indexed

About

K. Sumiyama is a scholar working on Mechanical Engineering, Atomic and Molecular Physics, and Optics and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, K. Sumiyama has authored 352 papers receiving a total of 5.7k indexed citations (citations by other indexed papers that have themselves been cited), including 156 papers in Mechanical Engineering, 152 papers in Atomic and Molecular Physics, and Optics and 150 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in K. Sumiyama’s work include Magnetic properties of thin films (131 papers), Metallic Glasses and Amorphous Alloys (96 papers) and Magnetic Properties and Applications (68 papers). K. Sumiyama is often cited by papers focused on Magnetic properties of thin films (131 papers), Metallic Glasses and Amorphous Alloys (96 papers) and Magnetic Properties and Applications (68 papers). K. Sumiyama collaborates with scholars based in Japan, China and South Korea. K. Sumiyama's co-authors include Y. Nakamura, Takehiko Hihara, Saeki Yamamuro, Kenji Suzuki, Dong‐Liang Peng, Toyohiko J. Konno, M. Sherif El-Eskandarany, K. Suzuki, Toshihiro Kuzuya and Masaki Sakurai and has published in prestigious journals such as The Journal of Chemical Physics, Physical review. B, Condensed matter and Applied Physics Letters.

In The Last Decade

Co-authorship network of co-authors of K. Sumiyama

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

K. Sumiyama

338 papers receiving 5.5k citations

Fields of papers citing papers by K. Sumiyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by K. Sumiyama

Since Specialization
Citations

This map shows the geographic impact of K. Sumiyama'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 K. Sumiyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites K. Sumiyama 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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2026