Koichi Sugiyama

1.9k citations
121 papers · 1.5k indexed · h-index 22
Topics
Semiconductor Quantum Structures and Devices (32 papers)Chalcogenide Semiconductor Thin Films (31 papers)Quantum Dots Synthesis And Properties (23 papers)
Partner nations
Japan

In The Last Decade

Koichi Sugiyama

113 papers receiving 1.4k citations

Peers

Koichi Sugiyama
Comparison fields: 5 of 117
  • Electrical and Electronic Engineering 1.0k
  • Atomic and Molecular Physics, and Optics 695
  • Materials Chemistry 529
  • Biomedical Engineering 129
  • Molecular Biology 93
Replace Tôru Fujii with:
Tôru Fujii Japan
Ken-ichi Nomura Japan
Yasushi Yamauchi Japan
Masahiro Satoh Japan
G. J. Gualtieri Italy
Harjus Birk United States
Hiroshi Takai Japan
J. S. King United States
Chih‐Ju Chang Taiwan
Andrew P. Warren United States
Koichi Sugiyama relative to Tôru Fujii Japan Tôru Fujii's profile →
Citations per field
00.5×3.1×
Tôru Fujii · 1×
Citations per year

Countries citing papers authored by Koichi Sugiyama

Since Specialization
Citations

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

Fields of papers citing papers by Koichi Sugiyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koichi Sugiyama

This figure shows the co-authorship network connecting the top 25 collaborators of Koichi Sugiyama. A scholar is included among the top collaborators of Koichi Sugiyama 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 Koichi Sugiyama. Koichi Sugiyama 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
#WorkIndexed citations
1 0
2 29
3 2
4 29
5 8
6 73
7 21
8 5
9 1
10 3
11 12
12 20
13 13
14 1
15 5
16 11
17 12
18 35
19 3
20 4

About Koichi Sugiyama

Koichi Sugiyama is a scholar working on Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering and Instrumentation, having authored 121 papers that have together received 1.5k indexed citations. Recurring topics across this work include Semiconductor Quantum Structures and Devices (32 papers), Chalcogenide Semiconductor Thin Films (31 papers) and Quantum Dots Synthesis And Properties (23 papers). The work is most often cited by research in Atomic and Molecular Physics, and Optics (695 citations), Electrical and Electronic Engineering (1.0k citations) and Materials Chemistry (529 citations). Koichi Sugiyama has collaborated with scholars based in Japan. Frequent co-authors include Kunishige Oe, Hideto Miyake, Seigo Ando, Tsuyoshi Kawakami, Hiroyuki Kano, Masamitsu Kosaki, Masayuki Ieda, Hisao Saito, Akio Kobayashi and K. Tsubaki. Their work appears in journals such as Applied Physics Letters, Journal of Applied Physics and Endocrinology.

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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026