K. Sugiyama

5.1k total citations · 1 hit paper
65 papers, 4.3k citations indexed

About

K. Sugiyama is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Polymers and Plastics. According to data from OpenAlex, K. Sugiyama has authored 65 papers receiving a total of 4.3k indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Electrical and Electronic Engineering, 26 papers in Materials Chemistry and 9 papers in Polymers and Plastics. Recurrent topics in K. Sugiyama's work include Organic Electronics and Photovoltaics (11 papers), Organic Light-Emitting Diodes Research (11 papers) and Fusion materials and technologies (10 papers). K. Sugiyama is often cited by papers focused on Organic Electronics and Photovoltaics (11 papers), Organic Light-Emitting Diodes Research (11 papers) and Fusion materials and technologies (10 papers). K. Sugiyama collaborates with scholars based in Japan, Germany and United Kingdom. K. Sugiyama's co-authors include Hisao Ishii, Kazuhiko Seki, Eisuke Ito, Yukio Ouchi, Kazuo Misue, Takaki Kanbara, Takakazu Yamamoto, Daisuke Yoshimura, Takashi Kushida and T. Ogura and has published in prestigious journals such as Journal of the American Chemical Society, Advanced Materials and Journal of Applied Physics.

In The Last Decade

K. Sugiyama

64 papers receiving 4.2k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Energy Level Alignment and Interfacial Electronic Structures at Organic/Metal and Organic/Organic Interfaces

1999 2.7k citations Hisao Ishii, K. Sugiyama et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
K. Sugiyama Japan	18	3.6k	1.4k	1.3k	678	541	65	4.3k
Xiangwei Jiang China	27	2.1k 0.6×	1.9k 1.3×	700 0.5×	379 0.6×	317 0.6×	105	3.1k
T. Sakurai Japan	44	8.5k 2.4×	2.2k 1.5×	636 0.5×	503 0.7×	1.6k 2.9×	345	9.7k
Takashi Fukuda Japan	29	1.6k 0.4×	1.2k 0.9×	1.4k 1.1×	697 1.0×	538 1.0×	268	4.2k
Zhaoxin Wu China	43	4.6k 1.3×	3.1k 2.2×	1.5k 1.1×	395 0.6×	417 0.8×	206	5.5k
Alexander N. Cartwright United States	35	1.9k 0.5×	1.9k 1.3×	199 0.2×	886 1.3×	831 1.5×	163	3.8k
Zhenxing Wang China	35	2.5k 0.7×	3.4k 2.4×	248 0.2×	609 0.9×	1.4k 2.6×	143	4.7k
Reinhard Scholz Germany	41	3.3k 0.9×	1.8k 1.2×	737 0.6×	1.6k 2.4×	786 1.5×	209	5.4k
Jonathan P. Mailoa United States	23	2.7k 0.8×	2.4k 1.7×	626 0.5×	409 0.6×	326 0.6×	47	4.3k
Hiroyoshi Naito Japan	34	2.8k 0.8×	1.8k 1.3×	1.1k 0.9×	659 1.0×	658 1.2×	330	5.0k
W. B. Jackson United States	27	4.0k 1.1×	3.0k 2.1×	395 0.3×	550 0.8×	575 1.1×	89	5.0k

Countries citing papers authored by K. Sugiyama

Since Specialization

Citations

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

Fields of papers citing papers by K. Sugiyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

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

All Works

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20 of 20 papers shown

Sugiyama, K., et al.. (2007). Force-directed drawing method for intersecting clustered graphs. 42. 85–92. 7 indexed citations

Sugiyama, K., et al.. (2005). A concept of distributed compact AUV groups for the continuous monitoring of coastal sea environment. 1. 511–516. 7 indexed citations

Sugiyama, K., et al.. (2003). Development and evaluation of human thinking support tools. 17. 50–53. 1 indexed citations

Ogura, T., K. Sugiyama, T. Inoue, et al.. (2003). High turn-off current capability of parallel-connected 4.5 kv trench iegt. IEEE Transactions on Electron Devices. 50(5). 1392–1397. 15 indexed citations

Takahashi, J., K. Sugiyama, T. Inoue, et al.. (2002). 4500 V trench IEGTs having superior turn-on switching characteristics. 221–224. 4 indexed citations

Tanabe, T., K. Miyasaka, K. Sugiyama, et al.. (2002). Surface Distribution of Tritium on Graphite Tiles of Divertor Area in JT-60U. Fusion Science & Technology. 41(3P2). 877–881. 13 indexed citations

Omura, Ichiro, T. Ogura, K. Sugiyama, & Hiromichi Ohashi. (2002). Carrier injection enhancement effect of high voltage MOS devices-device physics and design concept. 217–220. 33 indexed citations

Eicher, S., et al.. (2002). Advanced lifetime control for reducing turn-off switching losses of 4.5 kV IEGT devices. 39–42. 2 indexed citations

Seto, Takatoshi, Manabu Kawa, K. Sugiyama, & Masaharu Nomura. (2001). XAFS studies of Tb or Eu cored dendrimer complexes with various properties of luminescence. Journal of Synchrotron Radiation. 8(2). 710–712. 3 indexed citations

10.

Nurulla, Ismayil, K. Sugiyama, Bang‐Lin Lee, & Takakazu Yamamoto. (2000). Spectroscopic changes of π-conjugated polyquinoxaline and a copolymer of heptylbenzimidazole and thiophene caused by protonation with trifluoroacetic acid. Reactive and Functional Polymers. 46(1). 49–53. 9 indexed citations

11.

Ishii, Hisao, K. Sugiyama, Daisuke Yoshimura, et al.. (1998). Energy-level alignment at model interfaces of organic electroluminescent devices studied by UV photoemission: trend in the deviation from the traditional way of estimating the interfacial electronic structures. IEEE Journal of Selected Topics in Quantum Electronics. 4(1). 24–33. 98 indexed citations

12.

Yamamoto, Takakazu, K. Sugiyama, Takaki Kanbara, Hideki Hayashi, & Hideki Etori. (1998). Preparation and properties of π-conjugated poly(benzimidazole-4,7-diyl)s. Macromolecular Chemistry and Physics. 199(9). 1807–1813. 44 indexed citations

13.

Sasaki, Hiroshi, et al.. (1998). A proposal of a supporting expert system for outage planning of electric power facilities retaining high power supply reliability. IEEE Transactions on Power Systems. 13(4). 1453–1458. 8 indexed citations

14.

Ishii, Hisao, Shinji Hasegawa, Daisuke Yoshimura, et al.. (1997). Electronic Structures of Porphyrins and their Interfaces with Metals Studied by UV Photoemission. Molecular crystals and liquid crystals science technology. Section A, Molecular crystals and liquid crystals. 296(1). 427–444. 14 indexed citations

15.

Sugiyama, K., Kazuhiko Seki, Eisuke Ito, Yukio Ouchi, & Hisao Ishii. (1997). UV Photoemission Study of Interfaces Related to Organic EL Devices. MRS Proceedings. 488. 2 indexed citations

16.

Hirano, Shin‐ichi, et al.. (1993). Preparation and Phase Separation Behavior of (Co,Fe) ₃ O ₄ Films. Journal of the American Ceramic Society. 76(7). 1788–1792. 23 indexed citations

17.

Kuwabara, Katsumi, Jun‐ichi Itoh, & K. Sugiyama. (1992). Some performance characteristics of a solid-state battery composed of Chevrel phase, a copper-ion conductor, and Prussian blue. Journal of Materials Science. 27(19). 5315–5319. 4 indexed citations

18.

Sugiyama, K., et al.. (1989). New fault location system for power transmission lines using composite fiber-optic overhead ground wire (OPGW). IEEE Transactions on Power Delivery. 4(4). 2005–2011. 17 indexed citations

19.

Itoh, Hideaki, M. Kato, & K. Sugiyama. (1987). Plasma-enhanced chemical vapour deposition of AlN coatings on graphite substrates. Thin Solid Films. 146(3). 255–264. 23 indexed citations

20.

Sugiyama, K., et al.. (1975). Statistical considerations on impulse breakdown characteristics of cross-linked polyethylene insulated cables. IEEE Transactions on Power Apparatus and Systems. 94(2). 367–377. 18 indexed citations

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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