Koji Yasui

1.4k total citations
73 papers, 995 citations indexed

About

Koji Yasui is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Organic Chemistry. According to data from OpenAlex, Koji Yasui has authored 73 papers receiving a total of 995 indexed citations (citations by other indexed papers that have themselves been cited), including 50 papers in Electrical and Electronic Engineering, 35 papers in Atomic and Molecular Physics, and Optics and 9 papers in Organic Chemistry. Recurrent topics in Koji Yasui's work include Solid State Laser Technologies (45 papers), Laser Design and Applications (36 papers) and Photorefractive and Nonlinear Optics (29 papers). Koji Yasui is often cited by papers focused on Solid State Laser Technologies (45 papers), Laser Design and Applications (36 papers) and Photorefractive and Nonlinear Optics (29 papers). Koji Yasui collaborates with scholars based in Japan, United States and Germany. Koji Yasui's co-authors include Shuichi Fujikawa, Susumu Konno, Tetsuo Kojima, Sakayu Shimizu, Hideaki Yamada, Yoshiki Tani, Toshiharu Kojima, Masaaki Tanaka, Kazuo Nagasawa and Detlev Erdmann and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Chemical Communications.

In The Last Decade

Koji Yasui

64 papers receiving 946 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Koji Yasui Japan 17 555 463 115 111 102 73 995
A. K. Srivastava India 14 285 0.5× 129 0.3× 246 2.1× 103 0.9× 43 0.4× 87 891
Robert Kwasnick United States 10 169 0.3× 127 0.3× 141 1.2× 104 0.9× 31 0.3× 27 563
James Cassidy United States 19 225 0.4× 182 0.4× 45 0.4× 105 0.9× 83 0.8× 60 1.1k
Omar S. Khalil United States 16 202 0.4× 182 0.4× 138 1.2× 70 0.6× 28 0.3× 38 1.1k
Masatoshi Fujii Japan 17 158 0.3× 94 0.2× 106 0.9× 105 0.9× 421 4.1× 110 1.1k
Kei Yamamoto Japan 13 203 0.4× 401 0.9× 60 0.5× 32 0.3× 31 0.3× 47 849
Satoshi Hirayama Japan 16 60 0.1× 131 0.3× 65 0.6× 126 1.1× 71 0.7× 45 718
X. C. Xie China 23 213 0.4× 797 1.7× 16 0.1× 150 1.4× 45 0.4× 62 1.3k
Hiroki Ikegami Japan 16 46 0.1× 565 1.2× 40 0.3× 209 1.9× 55 0.5× 67 1.2k
W. Pilz Germany 16 332 0.6× 94 0.2× 56 0.5× 133 1.2× 24 0.2× 137 1.1k

Countries citing papers authored by Koji Yasui

Since Specialization
Citations

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

Fields of papers citing papers by Koji Yasui

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koji Yasui

This figure shows the co-authorship network connecting the top 25 collaborators of Koji Yasui. A scholar is included among the top collaborators of Koji Yasui 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 Koji Yasui. Koji Yasui 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.
Yasui, Koji, et al.. (2023). Guanidinium Hypoiodite-Catalyzed Intramolecular Oxidative Coupling Reaction of Oxindoles with β-Dicarbonyls. The Journal of Organic Chemistry. 88(12). 7660–7673. 6 indexed citations
2.
Yasui, Koji, et al.. (2019). Synthetic Chemical Probes That Dissect Vitamin D Activities. ACS Chemical Biology. 14(12). 2851–2858. 15 indexed citations
3.
Yasui, Koji, et al.. (2016). A-Ring Synthons of 19-Nor Type Vitamin D Derivatives. The Journal of Steroid Biochemistry and Molecular Biology. 173. 64–68. 2 indexed citations
4.
Yasui, Koji, et al.. (2016). Guanidinium iodide/urea hydrogen peroxide-catalyzed azidation of β-dicarbonyl compounds with trimethylsilyl azide. Tetrahedron. 72(35). 5350–5354. 14 indexed citations
5.
Miyazawa, J., Koji Yasui, & H. Yamada. (2008). Gas fueling system in LHD. Fusion Engineering and Design. 83(2-3). 265–268. 4 indexed citations
6.
Katsura, Tomoo, Toshiharu Kojima, Koji Yasui, et al.. (2007). High-power, high-repetition UV beam generation with an all-solid-state laser. 1–1. 3 indexed citations
7.
Baccarani, Alessio, Koji Yasui, Kevin C. Olbrich, et al.. (2007). Efficacy of Ethyl Nitrite in Reversing Surgical Vasospasm. Journal of Reconstructive Microsurgery. 23(5). 257–262. 6 indexed citations
8.
Erdmann, Detlev, Ranya Sweis, Christoph Heitmann, et al.. (2004). Side-to-side sutureless vascular anastomosis with magnets. Journal of Vascular Surgery. 40(3). 505–511. 43 indexed citations
9.
Kojima, Toshiharu, Susumu Konno, Shuichi Fujikawa, et al.. (2003). 100-hour continuous operation of a 20-W frequency-converted 266-nm UV laser. 88–89. 1 indexed citations
10.
Fujikawa, Shuichi, et al.. (2003). One kilowatt high-beam-quality and highly-efficient diode-pumped Nd:YAG rod laser. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 4831. 101–101. 1 indexed citations
11.
Erdmann, Detlev, et al.. (2002). Microsurgical Free Flap Transfer to Amputation Sites: Indications and Results. Annals of Plastic Surgery. 48(2). 167–172. 42 indexed citations
12.
Kojima, Toshiharu, Susumu Konno, Shuichi Fujikawa, et al.. (2001). High-reliable high-power 266-nm UV beam generation by using high-quality uniform CLBO crystals with an all-solid-state laser. 390–391. 2 indexed citations
13.
Konno, Susumu, Toshiharu Kojima, Shuichi Fujikawa, & Koji Yasui. (2001). High-average-power, high-repetition, diode-pumped third-harmonic Nd:YAG laser. 391–391. 2 indexed citations
14.
Fujikawa, Shuichi, et al.. (2001). Efficient high-beam-quality operation by use of a diode-stacks-side-pumped quasi-cw Nd:YAG laser. Advanced Solid-State Lasers. 3. MA5–MA5. 1 indexed citations
15.
Kojima, Tetsuo, Susumu Konno, Shuichi Fujikawa, et al.. (2000). 20-W ultraviolet-beam generation by fourth-harmonic generation of an all-solid-state laser. Optics Letters. 25(1). 58–58. 88 indexed citations
16.
Kojima, Tetsuo & Koji Yasui. (1997). Efficient diode side-pumping configuration of a Nd:YAG rod laser with a diffusive cavity. Applied Optics. 36(21). 4981–4981. 30 indexed citations
17.
Fukuzumi, Shunichi, Koji Yasui, Tomoyoshi Suenobu, & Shinobu Itoh. (1997). Highly efficient catalysis of scandium ion on reduction of carbonyl compounds by NADH analogues. Journal of Inorganic Biochemistry. 67(1-4). 422–422. 1 indexed citations
18.
Yasui, Koji. (1996). Efficient and stable operation of a high-brightness cw 500-W Nd:YAG rod laser. Applied Optics. 35(15). 2566–2566. 35 indexed citations
19.
Yasui, Koji. (1996). High-brightness cw-500-W Nd: YAG rod laser. Advanced Solid-State Lasers. 239. HP2–HP2. 1 indexed citations
20.
Kuzumoto, M., et al.. (1992). A 5 kW CW CO/sub 2/ laser using a novel negative-branch unstable resonator with a phase-unifying output coupler. IEEE Journal of Quantum Electronics. 28(9). 1855–1858. 7 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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