T. Hirayama

679 total citations
14 papers, 581 citations indexed

About

T. Hirayama is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Polymers and Plastics. According to data from OpenAlex, T. Hirayama has authored 14 papers receiving a total of 581 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Electrical and Electronic Engineering, 7 papers in Materials Chemistry and 5 papers in Polymers and Plastics. Recurrent topics in T. Hirayama's work include ZnO doping and properties (7 papers), Gas Sensing Nanomaterials and Sensors (5 papers) and Transition Metal Oxide Nanomaterials (5 papers). T. Hirayama is often cited by papers focused on ZnO doping and properties (7 papers), Gas Sensing Nanomaterials and Sensors (5 papers) and Transition Metal Oxide Nanomaterials (5 papers). T. Hirayama collaborates with scholars based in Japan and Belgium. T. Hirayama's co-authors include H. Sakata, Y. Natsume, Hiroaki Yanagida, Shin‐ichi Nakao, Masaki Takamoto, Masataka Nakazawa, Masato Yoshida, Minako Takeda, Hideomi Koinuma and Nobuhiro Ban and has published in prestigious journals such as Journal of Applied Physics, Journal of Materials Science and Japanese Journal of Applied Physics.

In The Last Decade

T. Hirayama

13 papers receiving 557 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
T. Hirayama Japan 8 470 316 129 76 75 14 581
Manohar Singh India 12 380 0.8× 320 1.0× 129 1.0× 55 0.7× 46 0.6× 36 481
Ashok B. Bhise India 9 370 0.8× 253 0.8× 117 0.9× 68 0.9× 29 0.4× 12 426
Anxiang Kuang China 8 509 1.1× 343 1.1× 144 1.1× 36 0.5× 36 0.5× 28 549
Y. Dou United Kingdom 7 473 1.0× 295 0.9× 86 0.7× 52 0.7× 144 1.9× 10 567
Guang-Rui Gu China 12 289 0.6× 189 0.6× 58 0.4× 49 0.6× 39 0.5× 35 395
José A. Varela Brazil 14 649 1.4× 468 1.5× 144 1.1× 110 1.4× 77 1.0× 26 775
S.H. Moustafa Egypt 14 448 1.0× 339 1.1× 87 0.7× 71 0.9× 48 0.6× 34 522
Sung-Sik Chang South Korea 13 545 1.2× 390 1.2× 90 0.7× 58 0.8× 50 0.7× 26 630
Subodh K. Gautam India 14 441 0.9× 356 1.1× 106 0.8× 102 1.3× 75 1.0× 33 587
S.B. Lee South Korea 9 380 0.8× 299 0.9× 85 0.7× 31 0.4× 29 0.4× 10 425

Countries citing papers authored by T. Hirayama

Since Specialization
Citations

This map shows the geographic impact of T. Hirayama'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 T. Hirayama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T. Hirayama more than expected).

Fields of papers citing papers by T. Hirayama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of T. Hirayama

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

All Works

14 of 14 papers shown
1.
Ueyama, Atsunori, Nobuhiro Ban, Masanori Fukazawa, et al.. (2015). Inhibition of MEK1 Signaling Pathway in the Liver Ameliorates Insulin Resistance. Journal of Diabetes Research. 2016. 1–13. 4 indexed citations
2.
Kawashima, Shuichi, et al.. (2007). A Reliable 1T1C FeRAM Using a Thermal History Tracking 2T2C Dual Reference Level Technique for a Smart Card Application Chip. IEICE Transactions on Electronics. E90-C(10). 1941–1948. 2 indexed citations
3.
Yoshida, Masato, et al.. (2006). An ultrastable PLL mode-locked fiber laser with a hydrogen maser clock. 1717–1718. 3 indexed citations
4.
Nakao, Shin‐ichi, T. Hirayama, & Masaki Takamoto. (2000). Relations between the Discharge Coefficients of the Sonic Venturi Nozzle and a Kind of Gases.. TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B. 66(642). 438–444. 12 indexed citations
5.
Sakata, H., et al.. (1998). Electrical conductivity of Co3O4 films prepared by chemical vapour deposition. Materials Chemistry and Physics. 53(3). 225–230. 225 indexed citations
6.
Natsume, Y., H. Sakata, & T. Hirayama. (1995). Low-temperature electrical conductivity and optical absorption edge of ZnO films prepared by chemical vapour deposition. physica status solidi (a). 148(2). 485–495. 132 indexed citations
7.
Natsume, Y., H. Sakata, T. Hirayama, & Hiroaki Yanagida. (1992). Low-temperature conductivity of ZnO films prepared by chemical vapor deposition. Journal of Applied Physics. 72(9). 4203–4207. 127 indexed citations
8.
Shiraishi, Tadashi, T. Hirayama, H. Sakata, et al.. (1991). Preparation of Y-Cu-O/Ba-Cu-O Multilayered Thin Films and Thermal Diffusion Behavior of the Interface. Japanese Journal of Applied Physics. 30(8R). 1676–1676. 1 indexed citations
9.
Natsume, Y., H. Sakata, T. Hirayama, & Hiroaki Yanagida. (1991). Low-temperature conductivity of undoped zinc oxide films by chemical vapour deposition. Journal of Materials Science Letters. 10(14). 810–812. 8 indexed citations
10.
Natsume, Y., et al.. (1990). Optical absorption edge of zinc oxide films by CVD. Journal of Materials Science Letters. 9(11). 1354–1356. 13 indexed citations
11.
Natsume, Y., et al.. (1990). Preparation and electrical properties of undoped zinc oxide films by CVD. Journal of Materials Science Letters. 9(11). 1351–1353. 44 indexed citations
12.
Koinuma, Hideomi, et al.. (1990). Fluorine Doping and Superconductivity of Nd2CuO4 Thin Films. Japanese Journal of Applied Physics. 29(9A). L1642–L1642. 3 indexed citations
13.
Hirayama, T., et al.. (1990). The effect of gas atmospheres on resistivity of indium tin oxide films at high temperature. Journal of Materials Science. 25(2). 1403–1406. 7 indexed citations
14.
Nishimura, Kunio & T. Hirayama. (1968). Investigation of Activation Analysis of Trace Mercury in Gas by Radioisotope Tracer Method. RADIOISOTOPES. 17(12). 562–568.

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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