Ryohei Takeda

505 total citations
27 papers, 416 citations indexed

About

Ryohei Takeda is a scholar working on Mechanical Engineering, Organic Chemistry and Materials Chemistry. According to data from OpenAlex, Ryohei Takeda has authored 27 papers receiving a total of 416 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Mechanical Engineering, 5 papers in Organic Chemistry and 4 papers in Materials Chemistry. Recurrent topics in Ryohei Takeda's work include Advanced Measurement and Metrology Techniques (12 papers), Gear and Bearing Dynamics Analysis (9 papers) and Advanced machining processes and optimization (6 papers). Ryohei Takeda is often cited by papers focused on Advanced Measurement and Metrology Techniques (12 papers), Gear and Bearing Dynamics Analysis (9 papers) and Advanced machining processes and optimization (6 papers). Ryohei Takeda collaborates with scholars based in Japan, China and United States. Ryohei Takeda's co-authors include Yuuya Nagata, Michinori Suginome, Masaharu KOMORI, Suping Fang, Yongsheng Liu, Hideki Hirayama, Masafumi Jo, Yoichi Yamada, Noritoshi Maeda and M. Ajmal Khan and has published in prestigious journals such as Journal of Applied Physics, Chemical Communications and Optics Letters.

In The Last Decade

Ryohei Takeda

26 papers receiving 404 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ryohei Takeda Japan 13 161 135 81 67 67 27 416
H. Hakemi United States 12 188 1.2× 62 0.5× 161 2.0× 17 0.3× 379 5.7× 51 550
Hermann Onusseit Germany 11 117 0.7× 41 0.3× 147 1.8× 9 0.1× 376 5.6× 16 463
Tomohiro Nakagawa Japan 10 49 0.3× 37 0.3× 162 2.0× 17 0.3× 109 1.6× 35 412
Amid Ranjkesh Iran 12 51 0.3× 77 0.6× 141 1.7× 29 0.4× 334 5.0× 49 466
Soumil Y. Joshi United States 7 67 0.4× 52 0.4× 119 1.5× 12 0.2× 3 0.0× 13 311
Klaus Stoewe Germany 5 32 0.2× 70 0.5× 325 4.0× 7 0.1× 23 0.3× 9 475
Kaori Mizushima Japan 9 23 0.1× 66 0.5× 165 2.0× 32 0.5× 201 3.0× 14 408
Maria A. Cardona Malta 9 44 0.3× 98 0.7× 92 1.1× 257 3.8× 6 0.1× 10 427
Ludwig Schneider United States 13 90 0.6× 24 0.2× 304 3.8× 28 0.4× 8 0.1× 29 431
Hossein Nemati United States 10 49 0.3× 79 0.6× 70 0.9× 4 0.1× 332 5.0× 17 393

Countries citing papers authored by Ryohei Takeda

Since Specialization
Citations

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

Fields of papers citing papers by Ryohei Takeda

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryohei Takeda

This figure shows the co-authorship network connecting the top 25 collaborators of Ryohei Takeda. A scholar is included among the top collaborators of Ryohei Takeda 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 Ryohei Takeda. Ryohei Takeda 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.
Fang, Suping, et al.. (2024). A method for determining the actual coordinate system of spiral bevel gears by the measured positions of eight tooth surfaces. Measurement Science and Technology. 35(9). 95005–95005.
2.
Fang, Suping, et al.. (2021). An alignment angle error compensation method of spiral bevel gear tooth surface measurement based on tooth surface matching. Measurement Science and Technology. 32(10). 105020–105020. 7 indexed citations
3.
Khan, M. Ajmal, Ryohei Takeda, Yoichi Yamada, et al.. (2020). Beyond 53% internal quantum efficiency in a AlGaN quantum well at 326  nm UVA emission and single-peak operation of UVA LED: publisher’s note. Optics Letters. 45(9). 2563–2563. 7 indexed citations
4.
Nagata, Yuuya, Ryohei Takeda, & Michinori Suginome. (2019). Asymmetric Catalysis in Chiral Solvents: Chirality Transfer with Amplification of Homochirality through a Helical Macromolecular Scaffold. ACS Central Science. 5(7). 1235–1240. 101 indexed citations
5.
Takeda, Ryohei & Takahiro Aoyagi. (2019). Development of Near-Field Source Localization Method using Convolutional Neural Network. 686–689. 2 indexed citations
6.
Nagata, Yuuya, et al.. (2018). A Planar-Chiral Pillar[5]arene-Based Monophosphine Ligand with Induced Chirality at the Biaryl Axis. Synlett. 29(16). 2167–2170. 13 indexed citations
7.
Leung, Franco King‐Chi, Fumitaka Ishiwari, Yoshiaki Shoji, et al.. (2017). Synthesis and Catalytic Applications of a Triptycene-Based Monophosphine Ligand for Palladium-Mediated Organic Transformations. ACS Omega. 2(5). 1930–1937. 31 indexed citations
8.
KOMORI, Masaharu, et al.. (2016). Spring-force self-aligned multiball pitch artifact. Precision Engineering. 45. 98–109. 1 indexed citations
9.
Nagata, Yuuya, Ryohei Takeda, & Michinori Suginome. (2016). High-pressure circular dichroism spectroscopy up to 400 MPa using polycrystalline yttrium aluminum garnet (YAG) as pressure-resistant optical windows. RSC Advances. 6(111). 109726–109729. 8 indexed citations
10.
Liu, Yongsheng, et al.. (2016). Compensation method for the alignment angle error in pitch deviation measurement. Measurement Science and Technology. 27(5). 55006–55006. 14 indexed citations
11.
KOMORI, Masaharu, et al.. (2016). High-precision concave spherical artifact for accuracy evaluation of a measuring instrument for an internal gear. Journal of Advanced Mechanical Design Systems and Manufacturing. 10(4). JAMDSM0063–JAMDSM0063. 2 indexed citations
12.
Nagata, Yuuya, Ryohei Takeda, & Michinori Suginome. (2015). Pressure-dependent helix inversion of poly(quinoxaline-2,3-diyl)s containing chiral side chains in non-aqueous solvents. Chemical Communications. 51(56). 11182–11185. 30 indexed citations
13.
KOMORI, Masaharu, et al.. (2014). Magnetically self-aligned multiball pitch artifact using geometrically simple features. Precision Engineering. 40. 160–171. 6 indexed citations
14.
Takeda, Ryohei, et al.. (2013). Performance analysis of generated hypoid gear based on measured tooth flank form data. Mechanism and Machine Theory. 72. 1–16. 17 indexed citations
15.
16.
Nishitani, Shigeto R., Ryohei Takeda, Hideki Ishii, Yosuke Yamamoto, & Tadaaki Kaneko. (2009). First Principles Calculations of Vibrational Free Energy Estimated by the Quasi-Harmonic Approximation. Journal of the Japan Institute of Metals and Materials. 73(8). 566–570. 1 indexed citations
17.
KOMORI, Masaharu, Aizoh KUBO, Toshiyuki Takatsuji, et al.. (2009). High-precision measurement of an involute artefact by a rolling method and comparison between measuring instruments. Measurement Science and Technology. 20(4). 45105–45105. 16 indexed citations
18.
Aoki, Akiko, et al.. (2005). Development of a New Gear Measuring Instrument using Direct Drive Systems (1st report). 2005. 457–458. 1 indexed citations
19.
Takeda, Ryohei, et al.. (2004). Development of Mother Gear Measuring Instrument with Laser (MGL-26). 2004(0). 369–370. 1 indexed citations
20.
Litvin, Faydor L., et al.. (1994). Computerized Analysis of Meshing and Contact of Gear Real Tooth Surfaces. Journal of Mechanical Design. 116(3). 677–682. 31 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by H. Hakemi Breakdown of academic impact, for papers by Hermann Onusseit Breakdown of academic impact, for papers by Tomohiro Nakagawa Breakdown of academic impact, for papers by Amid Ranjkesh Breakdown of academic impact, for papers by Soumil Y. Joshi Breakdown of academic impact, for papers by Klaus Stoewe Breakdown of academic impact, for papers by Kaori Mizushima Breakdown of academic impact, for papers by Maria A. Cardona Breakdown of academic impact, for papers by Ludwig Schneider Breakdown of academic impact, for papers by Hossein Nemati
Rankless by CCL
2026