K. Okamoto

3.0k total citations
198 papers, 2.3k citations indexed

About

K. Okamoto is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Biomedical Engineering. According to data from OpenAlex, K. Okamoto has authored 198 papers receiving a total of 2.3k indexed citations (citations by other indexed papers that have themselves been cited), including 64 papers in Electrical and Electronic Engineering, 45 papers in Materials Chemistry and 39 papers in Biomedical Engineering. Recurrent topics in K. Okamoto's work include Physics of Superconductivity and Magnetism (29 papers), Ferroelectric and Piezoelectric Materials (24 papers) and Acoustic Wave Resonator Technologies (19 papers). K. Okamoto is often cited by papers focused on Physics of Superconductivity and Magnetism (29 papers), Ferroelectric and Piezoelectric Materials (24 papers) and Acoustic Wave Resonator Technologies (19 papers). K. Okamoto collaborates with scholars based in Japan, United States and China. K. Okamoto's co-authors include K. Nomura, Fumihide Isohashi, Naoya Suematsu, Takashi Tonegawa, Tôru Sakai, Manae S. Kurokawa, Mitsumi Arito, Hitoshi Ohta, T. Idehara and Yutaka Fujii and has published in prestigious journals such as Physical Review Letters, Journal of Biological Chemistry and Nature Communications.

In The Last Decade

K. Okamoto

185 papers receiving 2.2k citations

Peers

Countries citing papers authored by K. Okamoto

Since Specialization

Citations

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

Fields of papers citing papers by K. Okamoto

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

This figure shows the co-authorship network connecting the top 25 collaborators of K. Okamoto. A scholar is included among the top collaborators of K. Okamoto 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. Okamoto. K. Okamoto 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

#	Work	Indexed citations
1	Effect of H2 heat treatment on the switching behavior of ferroelectric AlScN capacitors 2025 ·APL Materials ·(unknown), K. Okamoto, Shinnosuke Yasuoka, (unknown), (unknown), (unknown), K. Tsunekawa, Haidong Lu, Alexei Gruverman, Hiroshi Funakubo	1
2	Advances and challenges in novel non-perovskite-based ferroelectrics film for memory device applications 2025 ·Japanese Journal of Applied Physics ·Hiroshi Funakubo, K. Okamoto, Takanori Mimura	1
3	Ultra-low-strain ferroelectric PbTiO3 films achieved via well-lattice-matched low-temperature epitaxy 2025 ·Acta Materialia ·(unknown), K. Okamoto, Hiroshi Funakubo	0
4	Realization of Non‐Equilibrium Wurtzite Structure in Heterovalent Ternary MgSiN₂ Film Grown by Reactive Sputtering 2025 ·Advanced Electronic Materials ·(unknown), K. Okamoto, Shinnosuke Yasuoka, Keisuke Ide, Kota Hanzawa, Yoshiomi Hiranaga, P. Hsieh, (unknown), (unknown), (unknown), Hiroko Yokota, Kei Shigematsu, Masaki Azuma, Venkatraman Gopalan, Hiroshi Uchida, Hidenori Hiramatsu, Hiroshi Funakubo	1
5	Evaluation of ferroelectricity in a distorted wurtzite-type structure of Sc-doped LiGaO₂ 2024 ·RSC Advances ·Sou Yasuhara, (unknown), K. Okamoto, (unknown), Hiroshi Funakubo, Shintaro Yasui, Mitsuru Itoh, Takaaki Tsurumi, Takuya Hoshina	2
6	Probing of Polarization Reversal in Ferroelectric (Al,Sc)N Films Using Single‐ and Tri‐Layered Structures With Different Sc/(Al+Sc) Ratio 2024 ·Advanced Materials Interfaces ·Shinnosuke Yasuoka, Takao Shimizu, K. Okamoto, (unknown), (unknown), (unknown), (unknown), K. Tsunekawa, Alexei Gruverman, Hiroshi Funakubo	5
7	High stability of the ferroelectricity against hydrogen gas in (Al,Sc)N thin films 2024 ·Applied Physics Letters ·(unknown), K. Okamoto, Shinnosuke Yasuoka, (unknown), (unknown), (unknown), K. Tsunekawa, Takayoshi Katase, Tomoyuki Koganezawa, Tomotaka Nakatani, L. S. R. Kumara, Osami Sakata, Hiroshi Funakubo	5
8	Excellent piezoelectric and ferroelectric properties of ScxGa1−xN alloy with high Sc concentration 2024 ·APL Materials ·Masato Uehara, Kenji Hirata, (unknown), Sri Ayu Anggraini, K. Okamoto, Hiroshi Yamada, Hiroshi Funakubo, Morito Akiyama	8
9	Phase Identification of 850 nm Thick 7%YO_1.5–93%HfO₂ Films by Surface and Cross-Sectional Raman Spectroscopies 2024 ·ACS Applied Electronic Materials ·Takanori Mimura, Yuma Takahashi, (unknown), (unknown), (unknown), (unknown), K. Okamoto, Hiroki Moriwake, (unknown), Takao Shimizu, Yasuhiro Fujii, Akitoshi Koreeda, Hiroshi Funakubo	2
10	Ta⁵⁺-substitution effects on crystal structure and ferroelectric property in HfO₂-based films 2024 ·Japanese Journal of Applied Physics ·(unknown), Takanori Mimura, Yoshiyuki Inaguma, Hiroshi Uchida, (unknown), K. Okamoto, Hiroshi Funakubo	1
11	The ferroelectric and piezoelectric properties of (Hf_1−xCe_x)O₂ films on indium tin oxide/Pt/TiO_x/SiO₂/(100)Si substrates obtained using a no-heating radio-frequency magnetron sputtering deposition method 2024 ·Japanese Journal of Applied Physics ·(unknown), K. Okamoto, (unknown), Shinnosuke Yasuoka, Yukari Inoue, (unknown), Hiroshi Funakubo	0
12	Achieving High Piezoelectric Performance across a Wide Composition Range in Tetragonal (Bi,Na)TiO₃–BaTiO₃ Films for Micro-electromechanical Systems 2023 ·ACS Applied Materials & Interfaces ·(unknown), Takao Shimizu, K. Okamoto, Akinori Tateyama, (unknown), (unknown), (unknown), Yusuke Sato, Hiroshi Funakubo	4
13	Preparation of {100}-oriented (1−x)(Bi,K)TiO₃−xCaTiO₃ solid-solution epitaxial films by the hydrothermal method and their ferroelectric and piezoelectric properties 2023 ·Japanese Journal of Applied Physics ·(unknown), (unknown), Yuma Takahashi, (unknown), K. Okamoto, Hiroshi Funakubo	0
14	Invariant polarization switching kinetics in an (Al0.8Sc0.2)N film with frequency and temperature 2023 ·Applied Physics Letters ·Shinnosuke Yasuoka, (unknown), (unknown), Takahisa Shiraishi, Takao Shimizu, K. Okamoto, Masato Uehara, Hiroshi Yamada, Morito Akiyama, Hiroshi Funakubo	8
15	In situ X-ray diffraction analysis of intrinsic and extrinsic piezoelectric response in (100)/(001)-oriented tetragonal multidomain Pb(Zr, Ti)O₃ films epitaxially grown on Si substrates 2023 ·Japanese Journal of Applied Physics ·(unknown), K. Okamoto, (unknown), Tomoaki Yamada, Hiroshi Funakubo	1
16	Scalable ferroelectricity of 20 nm-thick (Al0.8Sc0.2)N thin films sandwiched between TiN electrodes 2023 ·Journal of Applied Physics ·(unknown), Shinnosuke Yasuoka, (unknown), Takahisa Shiraishi, K. Okamoto, Kuniyuki Kakushima, Tomoyuki Koganezawa, Osami Sakata, Hiroshi Funakubo	3
17	An Easy-to-use Method for CT Image Simulation with Parameter Optimization Using a Water Phantom 2022 ·Japanese Journal of Radiological Technology ·(unknown), K. Okamoto, (unknown), Masaki Ohkubo	0
18	Enhanced intrinsic piezoelectric response in (001)-epitaxial single c-domain Pb(Zr,Ti)O3 nanorods 2020 ·Applied Physics Letters ·K. Okamoto, Tomoaki Yamada, Kentaro Nakamura, (unknown), Osami Sakata, Michael A. Phillips, Takanori Kiguchi, Masahito Yoshino, Hiroshi Funakubo, Takanori Nagasaki	4
19	The Novel NF‐κB Inhibitor, MTI‐II Peptide Anti‐Inflammatory Drug, Suppresses Inflammatory Responses in Odontoblast‐Like Cells 2016 ·Journal of Cellular Biochemistry ·(unknown), (unknown), K. Okamoto, Takahiko Morotomi, Eijiro Jimi, Chiaki Kitamura	9
20	T-loop deletion of CDC2 from breast cancer tissues eliminates binding to cyclin B1 and cyclin-dependent kinase inhibitor p21. 1998 ·PubMed ·Tomohiko Ohta, K. Okamoto, Fumihide Isohashi, (unknown), Mamoru Fukuda, Susumu Yamaguchi, Yue Xiong	9

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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