Toshihiro Umehara

675 total citations
11 papers, 613 citations indexed

About

Toshihiro Umehara is a scholar working on Atomic and Molecular Physics, and Optics, Molecular Biology and Electrical and Electronic Engineering. According to data from OpenAlex, Toshihiro Umehara has authored 11 papers receiving a total of 613 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Atomic and Molecular Physics, and Optics, 4 papers in Molecular Biology and 4 papers in Electrical and Electronic Engineering. Recurrent topics in Toshihiro Umehara's work include Spectroscopy and Quantum Chemical Studies (4 papers), DNA and Nucleic Acid Chemistry (4 papers) and Microwave and Dielectric Measurement Techniques (4 papers). Toshihiro Umehara is often cited by papers focused on Spectroscopy and Quantum Chemical Studies (4 papers), DNA and Nucleic Acid Chemistry (4 papers) and Microwave and Dielectric Measurement Techniques (4 papers). Toshihiro Umehara collaborates with scholars based in Japan and Germany. Toshihiro Umehara's co-authors include Satoru Mashimo, Shin Yagihara, H. Redlin, Shinichi Kuwabara, Nobuhiro Miura, Naoki Shinyashiki, Keniti Higasi, Daisaku Kurita, Sumie Shioya and Munetaka Haida and has published in prestigious journals such as The Journal of Chemical Physics, The Journal of Physical Chemistry and Biopolymers.

In The Last Decade

Toshihiro Umehara

11 papers receiving 584 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Toshihiro Umehara Japan	10	190	181	172	168	152	11	613
Shinichi Kuwabara Japan	7	165 0.9×	142 0.8×	153 0.9×	138 0.8×	98 0.6×	8	537
Henry H. Shao United States	7	154 0.8×	321 1.8×	68 0.4×	148 0.9×	66 0.4×	14	680
Yan-Zhen Wei United States	8	131 0.7×	128 0.7×	137 0.8×	132 0.8×	86 0.6×	9	437
Paul Winsor United States	10	88 0.5×	159 0.9×	144 0.8×	138 0.8×	85 0.6×	15	429
J. De Bleijser Netherlands	15	273 1.4×	139 0.8×	41 0.2×	99 0.6×	79 0.5×	36	640
H.W. Blanch United States	14	227 1.2×	382 2.1×	44 0.3×	215 1.3×	139 0.9×	19	927
J.T. Davies United Kingdom	4	123 0.6×	186 1.0×	122 0.7×	98 0.6×	39 0.3×	4	488
C. M. C. Gambi Italy	12	197 1.0×	113 0.6×	74 0.4×	106 0.6×	34 0.2×	47	515
Zhorro S. Nickolov United States	12	141 0.7×	166 0.9×	101 0.6×	70 0.4×	58 0.4×	16	475
Buqiang Li United States	10	116 0.6×	116 0.6×	27 0.2×	149 0.9×	88 0.6×	16	462

Countries citing papers authored by Toshihiro Umehara

Since Specialization

Citations

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

Fields of papers citing papers by Toshihiro Umehara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Toshihiro Umehara

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

All Works

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11 of 11 papers shown

Yagihara, Shin, Nobuhiro Miura, Yoshihito Hayashi, et al.. (2001). Microwave Dielectric Study on Water Structure and Physical Properties of Aqueous Systems Using Time Domain Reflectometry with Flat-End Cells. 2(1). 15–30. 14 indexed citations

Umehara, Toshihiro, et al.. (1995). Study on the hydration structure of L-xylo and D-arabo ascorbic acid solutions by time domain reflectometry. The Journal of Chemical Physics. 102(24). 9474–9479. 8 indexed citations

Mashimo, Satoru, Nobuhiro Miura, Toshihiro Umehara, Shin Yagihara, & Keniti Higasi. (1992). The structure of water and methanol in p-dioxane as determined by microwave dielectric spectroscopy. The Journal of Chemical Physics. 96(9). 6358–6361. 67 indexed citations

Mashimo, Satoru, Nobuhiro Miura, & Toshihiro Umehara. (1992). The structure of water determined by microwave dielectric study on water mixtures with glucose, polysaccharides, and L-ascorbic acid. The Journal of Chemical Physics. 97(9). 6759–6765. 94 indexed citations

Umehara, Toshihiro, et al.. (1992). Measurement of bound water in an aqueous DNA solution using nuclear magnetic resonance and time domain reflectometry. The Journal of Physical Chemistry. 96(25). 10087–10089. 9 indexed citations

Mashimo, Satoru, Toshihiro Umehara, & H. Redlin. (1991). Structures of water and primary alcohol studied by microwave dielectric analyses. The Journal of Chemical Physics. 95(9). 6257–6260. 170 indexed citations

Umehara, Toshihiro, Shinichi Kuwabara, Satoru Mashimo, & Shin Yagihara. (1990). Dielectric study on hydration of B‐, A‐, and Z‐DNA. Biopolymers. 30(7-8). 649–656. 79 indexed citations

Shinyashiki, Naoki, et al.. (1990). Dielectric dispersion of primary alcohols in polymer complex. The Journal of Chemical Physics. 93(11). 8273–8275. 17 indexed citations

Mashimo, Satoru, Toshihiro Umehara, Shinichi Kuwabara, & Shin Yagihara. (1989). Dielectric study on dynamics and structure of water bound to DNA using a frequency range 107-1010 Hz. The Journal of Physical Chemistry. 93(12). 4963–4967. 52 indexed citations

10.

Kuwabara, Shinichi, Toshihiro Umehara, Satoru Mashimo, & Shin Yagihara. (1988). Dynamics and structure of water bound to DNA. The Journal of Physical Chemistry. 92(17). 4839–4841. 27 indexed citations

11.

Mashimo, Satoru, et al.. (1987). Evaluation of complex permittivity of aqueous solution by time domain reflectometry. Journal of Molecular Liquids. 36. 135–151. 76 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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