K. Usami

551 total citations
18 papers, 458 citations indexed

About

K. Usami is a scholar working on Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics and Electrical and Electronic Engineering. According to data from OpenAlex, K. Usami has authored 18 papers receiving a total of 458 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Electronic, Optical and Magnetic Materials, 6 papers in Atomic and Molecular Physics, and Optics and 6 papers in Electrical and Electronic Engineering. Recurrent topics in K. Usami's work include Liquid Crystal Research Advancements (3 papers), Magnetic properties of thin films (3 papers) and Silicon Nanostructures and Photoluminescence (3 papers). K. Usami is often cited by papers focused on Liquid Crystal Research Advancements (3 papers), Magnetic properties of thin films (3 papers) and Silicon Nanostructures and Photoluminescence (3 papers). K. Usami collaborates with scholars based in Japan, United Kingdom and Italy. K. Usami's co-authors include T. Nozaki, Yasuhiro Mochizuki, Masaaki Futamoto, Koji Kimoto, Kenji Sakamoto, Y. Hirayama, U. Kawabe, Masatoshi Nakazawa, Shigeyuki Hosoki and Yoshihisa Tanaka and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Journal of The Electrochemical Society.

In The Last Decade

K. Usami

16 papers receiving 432 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
K. Usami Japan 9 232 180 125 110 93 18 458
J. Zemek Czechia 13 215 0.9× 255 1.4× 69 0.6× 110 1.0× 61 0.7× 37 471
A. Dévényi Romania 15 335 1.4× 204 1.1× 92 0.7× 97 0.9× 51 0.5× 55 542
L. Pham Van France 14 340 1.5× 214 1.2× 63 0.5× 214 1.9× 106 1.1× 18 576
L. B. Harris Australia 11 283 1.2× 125 0.7× 65 0.5× 107 1.0× 57 0.6× 44 451
S. Fisson France 16 415 1.8× 403 2.2× 121 1.0× 204 1.9× 171 1.8× 45 734
L. Muehlhoff United States 8 326 1.4× 545 3.0× 111 0.9× 228 2.1× 64 0.7× 9 757
C. N. Afonso Spain 15 318 1.4× 199 1.1× 141 1.1× 206 1.9× 164 1.8× 34 611
M. Kuwabara Japan 11 226 1.0× 127 0.7× 82 0.7× 211 1.9× 64 0.7× 29 440
O. L. Krivanek United States 12 299 1.3× 239 1.3× 43 0.3× 126 1.1× 68 0.7× 38 702
M. Yoshikawa Japan 16 200 0.9× 558 3.1× 105 0.8× 88 0.8× 44 0.5× 33 718

Countries citing papers authored by K. Usami

Since Specialization
Citations

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

Fields of papers citing papers by K. Usami

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

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

All Works

18 of 18 papers shown
1.
Nagaraj, Mamatha, et al.. (2014). Unusual electric-field-induced transformations in the dark conglomerate phase of a bent-core liquid crystal. Liquid Crystals. 41(6). 800–811. 34 indexed citations
2.
Faetti, S., Kenji Sakamoto, & K. Usami. (2007). Very strong azimuthal anchoring of nematic liquid crystals on uv-aligned polyimide layers. Physical Review E. 75(5). 51704–51704. 15 indexed citations
3.
Usami, K., et al.. (2000). Investigation of Multi-wave X-Ray Reflectometry.. Journal of the Magnetics Society of Japan. 24(4−2). 551–554. 2 indexed citations
4.
Hirano, Takuichi, et al.. (1998). Layered Structure Analysis of Multilayers by X-Ray Reflectometry Using a Co-Kβ Line. Journal of the Magnetics Society of Japan. 22(4_1). 190–193. 1 indexed citations
5.
Hirano, Tatsumi, K. Usami, Kazuhiro Ueda, & H. Hoshiya. (1998). Layered structure analysis of GMR multilayers by X-ray reflectometry using the anomalous dispersion effect. Journal of Synchrotron Radiation. 5(3). 969–971. 7 indexed citations
6.
Sakamoto, Kenji, K. Usami, M. Watanabe, Ryuichi Arafune, & S. Ushioda. (1998). Surface anisotropy of polyimide film irradiated with linearly polarized ultraviolet light. Applied Physics Letters. 72(15). 1832–1834. 24 indexed citations
7.
Hirayama, Y., Masaaki Futamoto, Koji Kimoto, & K. Usami. (1996). Compositional microstructures of CoCr-alloy perpendicular magnetic recording media. IEEE Transactions on Magnetics. 32(5). 3807–3809. 38 indexed citations
8.
Hirano, Takuichi, et al.. (1995). In situ x-ray CT under tensile loading using synchrotron radiation. Journal of materials research/Pratt's guide to venture capital sources. 10(2). 381–386. 26 indexed citations
9.
Kimoto, Koji, et al.. (1995). Electron spectroscopic imaging analysis of compositional inhomogeneity in CoCrTa longitudinal thin film media. IEEE Transactions on Magnetics. 31(6). 2836–2838. 28 indexed citations
10.
Tanaka, Yoshihisa, K. Usami, Takuichi Hirano, et al.. (1992). OBSERVATION OF FIBERS IN LONG FIBER REINFORCED METAL MATRIX COMPOSITES BY X-RAY COMPUTED TOMOGRAPHY USING SYNCHROTRON RADIATION. Nondestructive Testing And Evaluation. 8-9(1-6). 779–786. 3 indexed citations
11.
Mochizuki, Yasuhiro, et al.. (1984). Infrared absorption spectra and compositions of evaporated silicon oxides (SiOx). Solid State Communications. 50(12). 1079–1081. 201 indexed citations
12.
Suzuki, Katsunori, Sadayuki Okudaira, Shigeru Nishimatsu, K. Usami, & Ichiro Kanomata. (1982). Microwave Plasma Etching of Si with  CF 4 and  SF 6 Gas. Journal of The Electrochemical Society. 129(12). 2764–2769. 22 indexed citations
13.
Iwamoto, Masako, et al.. (1982). Distribution of Forward Recoil Range of 18F Formed by Various Nuclear Reactions. Radiochimica Acta. 30(2). 73–78. 5 indexed citations
14.
Katayama, Yoshifumi, et al.. (1981). CHEMICAL SITES OF RARE GAS ATOMS IN AMORPHOUS SILICON. Le Journal de Physique Colloques. 42(C4). C4–787. 1 indexed citations
15.
Nakazawa, Masatoshi, Masaaki Futamoto, K. Usami, & U. Kawabe. (1981). Surface compositions of hexaborides at high temperatures. Journal of Applied Physics. 52(11). 6917–6920. 7 indexed citations
16.
Usami, K., et al.. (1981). High concentration antimony diffusion into silicon using auxiliary wafers. Applied Physics Letters. 39(3). 235–237. 1 indexed citations
17.
Futamoto, Masaaki, Masatoshi Nakazawa, K. Usami, Shigeyuki Hosoki, & U. Kawabe. (1980). Thermionic emission properties of a single-crystal LaB6 cathode. Journal of Applied Physics. 51(7). 3869–3876. 38 indexed citations
18.
Nozaki, T., Masako Iwamoto, K. Usami, K. Mukai, & Atsushi Hiraiwa. (1979). Helium-3 activation analysis of oxygen in silicon nitride films on silicon wafers. Journal of Radioanalytical and Nuclear Chemistry. 52(2). 449–459. 5 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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