Nobuto Oka

1.5k total citations
74 papers, 1.3k citations indexed

About

Nobuto Oka is a scholar working on Materials Chemistry, Electrical and Electronic Engineering and Polymers and Plastics. According to data from OpenAlex, Nobuto Oka has authored 74 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Materials Chemistry, 49 papers in Electrical and Electronic Engineering and 21 papers in Polymers and Plastics. Recurrent topics in Nobuto Oka's work include ZnO doping and properties (33 papers), Gas Sensing Nanomaterials and Sensors (20 papers) and Transition Metal Oxide Nanomaterials (18 papers). Nobuto Oka is often cited by papers focused on ZnO doping and properties (33 papers), Gas Sensing Nanomaterials and Sensors (20 papers) and Transition Metal Oxide Nanomaterials (18 papers). Nobuto Oka collaborates with scholars based in Japan, Germany and Venezuela. Nobuto Oka's co-authors include Yuzo Shigesato, Yasushi Sato, Junjun Jia, Takashi Yagi, Naoyuki Taketoshi, Tetsuya Baba, Norihiro Ito, Yoshinori Iwabuchi, Shin Nakamura and Ryo Hayashi and has published in prestigious journals such as Journal of Applied Physics, Scientific Reports and International Journal of Hydrogen Energy.

In The Last Decade

Nobuto Oka

70 papers receiving 1.3k citations

Peers

Nobuto Oka
Jow‐Lay Huang Taiwan
Michael E. Liao United States
Duck‐Kyun Choi South Korea
Chong Dong China
A. C. Abhyankar India
Jinpeng Zhu China
Manish Kumar India
Jikun Chen China
Piotr Szperlich Poland
Jianliang Xie China
Jow‐Lay Huang Taiwan
Nobuto Oka
Citations per year, relative to Nobuto Oka Nobuto Oka (= 1×) peers Jow‐Lay Huang

Countries citing papers authored by Nobuto Oka

Since Specialization
Citations

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

Fields of papers citing papers by Nobuto Oka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Nobuto Oka

This figure shows the co-authorship network connecting the top 25 collaborators of Nobuto Oka. A scholar is included among the top collaborators of Nobuto Oka 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 Nobuto Oka. Nobuto Oka 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.
2.
Nishida, Tetsuaki, Shiro Kubuki, & Nobuto Oka. (2021). Local structure, glass transition, structural relaxation, and crystallization of functional oxide glasses investigated by Mössbauer spectroscopy and DTA. Journal of Materials Science Materials in Electronics. 32(19). 23655–23689. 4 indexed citations
3.
Kawazumi, Hirofumi, et al.. (2019). Application of PCA-SVM and ANN Techniques for Plastic Identification by Raman Spectroscopy. 114–118. 6 indexed citations
4.
Nishida, Tetsuaki, et al.. (2019). 119Sn and 57Fe Mӧssbauer study of highly conductive vanadate glass. Journal of Materials Science Materials in Electronics. 30(9). 8847–8854. 5 indexed citations
5.
Nagamura, Naoka, et al.. (2018). Electronic States of Quinones for Organic Energy Devices: The Effect of Molecular Structure on Electrochemical Characteristics. ACS Applied Energy Materials. 1(7). 3084–3092. 9 indexed citations
6.
Fujita, Yuki, et al.. (2017). Water purification using porous ceramics prepared by recycling volcanic ash and waste glass. Applied Water Science. 7(7). 4109–4115. 3 indexed citations
7.
Nishida, Tetsuaki, et al.. (2017). Structural relaxation and electrical conductivity of molybdovanadate glass. Journal of Materials Science Materials in Electronics. 29(4). 2654–2659. 4 indexed citations
8.
Nakayasu, Yuta, Takaaki Tomai, Nobuto Oka, et al.. (2017). Fabrication of Cu2ZnSnS4 thin films using a Cu-Zn-Sn-O amorphous precursor and supercritical fluid sulfurization. Thin Solid Films. 638. 244–250. 2 indexed citations
9.
Oka, Nobuto, Takaaki Tomai, & Itaru Honma. (2014). Direct mass production technique of graphene by supuercritical fluid. TANSO. 2014(261). 19–24.
10.
Oka, Nobuto, et al.. (2014). Thermophysical properties of SnO2-based transparent conductive films: Effect of dopant species and structure compared with In2O3-, ZnO-, and TiO2-based films. Journal of materials research/Pratt's guide to venture capital sources. 29(15). 1579–1584. 15 indexed citations
11.
Sato, Yasushi, Nobuto Oka, Shin Nakamura, & Yuzo Shigesato. (2013). Early Stages of Sn-Doped In. Japanese Journal of Applied Physics. 52(12). 1 indexed citations
12.
Yoshikawa, Toru, Takashi Yagi, Nobuto Oka, et al.. (2013). Thermal Conductivity of Amorphous Indium–Gallium–Zinc Oxide Thin Films. Applied Physics Express. 6(2). 21101–21101. 58 indexed citations
13.
Oka, Nobuto, et al.. (2012). Visible-Light Active Photocatalytic WO<SUB>3</SUB> Films Loaded with Pt Nanoparticles Deposited by Sputtering. Journal of Nanoscience and Nanotechnology. 12(6). 5082–5086. 21 indexed citations
14.
Jia, Junjun, et al.. (2012). Experimental observation on the Fermi level shift in polycrystalline Al-doped ZnO films. Journal of Applied Physics. 112(1). 94 indexed citations
15.
Sato, Yasushi, Takahiro Hashimoto, Nobuto Oka, et al.. (2011). High Rate Reactive Sputter Deposition of TiO2Films for Photocatalyst and Dye-Sensitized Solar Cells. Japanese Journal of Applied Physics. 50(4R). 45802–45802. 5 indexed citations
16.
Sato, Yasushi, Takahiro Hashimoto, Nobuto Oka, et al.. (2011). High Rate Reactive Sputter Deposition of TiO2 Films for Photocatalyst and Dye-Sensitized Solar Cells. Japanese Journal of Applied Physics. 50(4R). 45802–45802. 2 indexed citations
17.
Sato, Yasushi, et al.. (2010). Spatial distribution of electrical properties for Al-doped ZnO films deposited by dc magnetron sputtering using various inert gases. Journal of Vacuum Science & Technology A Vacuum Surfaces and Films. 28(4). 895–900. 19 indexed citations
18.
Oka, Nobuto, Kazuki Kato, Takashi Yagi, et al.. (2010). Thermal Diffusivities of Tris(8-hydroxyquinoline)aluminum and N,N'-Di(1-naphthyl)-N,N'-diphenylbenzidine Thin Films with Sub-Hundred Nanometer Thicknesses. Japanese Journal of Applied Physics. 49(12R). 121602–121602. 13 indexed citations
19.
20.
Oka, Nobuto, et al.. (2007). Material Database Syndication with RSS. Data Science Journal. 6. S847–S852. 2 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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