Koichi Sugiyama

1.9k total citations
121 papers, 1.5k citations indexed

About

Koichi Sugiyama is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Materials Chemistry. According to data from OpenAlex, Koichi Sugiyama has authored 121 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 79 papers in Electrical and Electronic Engineering, 48 papers in Atomic and Molecular Physics, and Optics and 33 papers in Materials Chemistry. Recurrent topics in Koichi Sugiyama's work include Semiconductor Quantum Structures and Devices (32 papers), Chalcogenide Semiconductor Thin Films (31 papers) and Quantum Dots Synthesis And Properties (23 papers). Koichi Sugiyama is often cited by papers focused on Semiconductor Quantum Structures and Devices (32 papers), Chalcogenide Semiconductor Thin Films (31 papers) and Quantum Dots Synthesis And Properties (23 papers). Koichi Sugiyama collaborates with scholars based in Japan. Koichi Sugiyama's co-authors include Kunishige Oe, Hideto Miyake, Seigo Ando, Tsuyoshi Kawakami, Hiroyuki Kano, Masamitsu Kosaki, Masayuki Ieda, Hisao Saito, Akio Kobayashi and K. Tsubaki and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Endocrinology.

In The Last Decade

Koichi Sugiyama

113 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Koichi Sugiyama Japan 22 1.0k 695 529 129 93 121 1.5k
Hiroshi Takai Japan 19 442 0.4× 258 0.4× 357 0.7× 359 2.8× 111 1.2× 139 1.4k
Tôru Fujii Japan 20 333 0.3× 362 0.5× 277 0.5× 329 2.6× 87 0.9× 95 1.3k
Kenichi Umeda Japan 20 470 0.5× 470 0.7× 404 0.8× 152 1.2× 223 2.4× 54 1.4k
G. J. Gualtieri Italy 18 769 0.7× 598 0.9× 480 0.9× 164 1.3× 87 0.9× 76 1.4k
Chih‐Ju Chang Taiwan 18 537 0.5× 211 0.3× 555 1.0× 213 1.7× 206 2.2× 69 1.7k
Tomoyuki Tamura Japan 21 572 0.6× 183 0.3× 763 1.4× 77 0.6× 48 0.5× 67 1.4k
Kengo Shibuya Japan 20 365 0.4× 268 0.4× 396 0.7× 168 1.3× 73 0.8× 73 1.3k
Baoxing Li China 19 187 0.2× 475 0.7× 623 1.2× 130 1.0× 113 1.2× 98 1.3k
Yasushi Yamauchi Japan 20 259 0.3× 260 0.4× 376 0.7× 128 1.0× 175 1.9× 101 1.2k
Ken-ichi Nomura Japan 24 442 0.4× 127 0.2× 635 1.2× 343 2.7× 113 1.2× 89 1.6k

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
1.
Itakura, Masaru, et al.. (2021). Suppression mechanism of abnormal grain growth by Zr addition in pressless processed Nd-Fe-B sintered magnets. Journal of Alloys and Compounds. 887. 161244–161244. 12 indexed citations
2.
3.
Kanzaki, Motoko, Jun Wada, Koichi Sugiyama, et al.. (2011). Galectin-9 and T Cell Immunoglobulin Mucin-3 Pathway Is a Therapeutic Target for Type 1 Diabetes. Endocrinology. 153(2). 612–620. 73 indexed citations
4.
Isoda, Haruo, Hiroyasu Takeda, Shoichi Inagawa, et al.. (2005). Visualization of Spinal Cord Motion Associated With the Cardiac Pulse by Tagged Magnetic Resonance Imaging With Particle Image Velocimetry Software. Journal of Computer Assisted Tomography. 30(1). 111–115. 5 indexed citations
5.
Sugiyama, Koichi, et al.. (2004). Robot task learning using haptic interface in virtual space. Society of Instrument and Control Engineers of Japan. 2. 1384–1387. 1 indexed citations
6.
ITOH, Motoyuki, Shigeki Imao, & Koichi Sugiyama. (1997). Characteristics of Low-Speed Streaks in the Flow of Drag-Reducing Surfactant Solution. TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B. 63(605). 40–46. 3 indexed citations
7.
Ichikawa, Sadao, Atsushi Nakano, Eiji Takahashi, et al.. (1996). Yearly variation of spontaneous somatic mutation frequency in the stamen hairs of Tradescantia clone KU 9 grown outdoors, which showed a significant increase after the Chernobyl accident. Mutation research. Fundamental and molecular mechanisms of mutagenesis. 349(2). 249–259. 12 indexed citations
8.
Miyake, Hideto, et al.. (1995). Vapor phase epitaxy of CuAlS2 on CuGaS2 substrates by the iodine transport method. Journal of Crystal Growth. 153(3-4). 180–183. 13 indexed citations
9.
Miyake, Hideto, et al.. (1994). Growth of CuGaS2 single crystals by the traveling heater method using CuI solvent. Journal of Crystal Growth. 144(3-4). 236–242. 5 indexed citations
10.
Endo, Tamio, et al.. (1988). Temperature Dependence of X1-X3 Splitting Energy in Lightly Doped GaP. Japanese Journal of Applied Physics. 27(1R). 72–72. 1 indexed citations
11.
Endo, Tamio, et al.. (1987). Band-Edge Shift and X1–X3Absorption Depending on Donor Concentration in GaP. Japanese Journal of Applied Physics. 26(6R). 912–912. 5 indexed citations
12.
Sugiyama, Koichi. (1986). Surface reconstruction and morphology of InAs grown by molecular beam epitaxy. Journal of Crystal Growth. 75(3). 435–440. 11 indexed citations
13.
Sugiyama, Koichi. (1984). Properties of CdTe films grown on InSb by molecular beam epitaxy. Thin Solid Films. 115(2). 97–107. 30 indexed citations
14.
Asai, Hiromitsu & Koichi Sugiyama. (1981). Liquid Phase Epitaxial Growth of CuGaSe2 on ZnSe. Japanese Journal of Applied Physics. 20(8). 1401–1401. 10 indexed citations
15.
Kano, Hiroyuki & Koichi Sugiyama. (1980). 2.0 μm c.w. operation of GaInAsSb/GaSb d.h. lasers at 80 K. Electronics Letters. 16(4). 146–147. 16 indexed citations
16.
Kano, Hiroyuki, Shintaro Miyazawa, & Koichi Sugiyama. (1979). Liquid-Phase Epitaxy of Ga1-yInyAsxSb1-xQuaternary Alloys on GaSb. Japanese Journal of Applied Physics. 18(11). 2183–2184. 18 indexed citations
17.
Kobayashi, Takeshi & Koichi Sugiyama. (1973). Effects of Uniaxial Stress on the Double Heterostructure Lasers. Japanese Journal of Applied Physics. 12(9). 1388–1392. 6 indexed citations
18.
Sugiyama, Koichi. (1968). Excess Carrier Concentrations in Cation-Saturated PbxSn1-xTe Solid Solutions. Japanese Journal of Applied Physics. 7(8). 961–961. 4 indexed citations
19.
Sugiyama, Koichi. (1967). Recombination and Trapping Processes at Deep Centers in N-Type GaAs. Japanese Journal of Applied Physics. 6(5). 601–611. 16 indexed citations
20.
Sugiyama, Koichi & Akio Kobayashi. (1963). Piezoresistance and Magnetoresistance in Impurity Conduction of Germanium. Journal of the Physical Society of Japan. 18(2). 163–174. 35 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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