Hiroshi Obase

624 total citations
47 papers, 523 citations indexed

About

Hiroshi Obase is a scholar working on Atomic and Molecular Physics, and Optics, Spectroscopy and Atmospheric Science. According to data from OpenAlex, Hiroshi Obase has authored 47 papers receiving a total of 523 indexed citations (citations by other indexed papers that have themselves been cited), including 36 papers in Atomic and Molecular Physics, and Optics, 29 papers in Spectroscopy and 19 papers in Atmospheric Science. Recurrent topics in Hiroshi Obase's work include Advanced Chemical Physics Studies (34 papers), Spectroscopy and Laser Applications (24 papers) and Atmospheric Ozone and Climate (14 papers). Hiroshi Obase is often cited by papers focused on Advanced Chemical Physics Studies (34 papers), Spectroscopy and Laser Applications (24 papers) and Atmospheric Ozone and Climate (14 papers). Hiroshi Obase collaborates with scholars based in Japan, Switzerland and India. Hiroshi Obase's co-authors include Masaharu Tsuji, Yukio Nishimura, John P. Maier, Satoaki Nakamura, Hiroshi Sekiya, Kazuo Yamaguchi, Kouichi Yoshida, John P. Maier, Ichiro Nagano and Masafumi Nakamura and has published in prestigious journals such as The Journal of Chemical Physics, The Journal of Physical Chemistry and Chemical Physics Letters.

In The Last Decade

Hiroshi Obase

47 papers receiving 499 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Hiroshi Obase Japan 14 364 348 127 93 88 47 523
C. H. Dugan Canada 13 361 1.0× 221 0.6× 110 0.9× 61 0.7× 94 1.1× 25 463
Asit B. Rakshit Germany 14 341 0.9× 394 1.1× 229 1.8× 48 0.5× 45 0.5× 32 599
A. Karawajczyk Sweden 14 433 1.2× 261 0.8× 64 0.5× 63 0.7× 49 0.6× 47 538
G. Taïeb France 14 285 0.8× 184 0.5× 52 0.4× 66 0.7× 107 1.2× 35 453
Y. Tanaka United States 11 397 1.1× 304 0.9× 171 1.3× 43 0.5× 84 1.0× 13 586
N. Damany France 15 425 1.2× 280 0.8× 100 0.8× 57 0.6× 129 1.5× 28 516
James C. Person United States 11 321 0.9× 211 0.6× 193 1.5× 89 1.0× 73 0.8× 18 569
T. G. DiGiuseppe United States 9 324 0.9× 258 0.7× 108 0.9× 78 0.8× 39 0.4× 15 454
G. Dorthe France 16 325 0.9× 191 0.5× 161 1.3× 154 1.7× 41 0.5× 22 467
C. W. Mathews United States 15 474 1.3× 375 1.1× 165 1.3× 70 0.8× 106 1.2× 25 652

Countries citing papers authored by Hiroshi Obase

Since Specialization
Citations

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

Fields of papers citing papers by Hiroshi Obase

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hiroshi Obase

This figure shows the co-authorship network connecting the top 25 collaborators of Hiroshi Obase. A scholar is included among the top collaborators of Hiroshi Obase 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 Hiroshi Obase. Hiroshi Obase 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.
Tsuji, Masaharu, et al.. (1995). Formation of NO(A 2Σ+, C 2Πr, D 2Σ+) by the ion–ion neutralization reaction between NO+ and C6F6− at thermal energy. The Journal of Chemical Physics. 102(15). 6013–6020. 8 indexed citations
2.
Tsuji, Masaharu, et al.. (1995). Electronic excitation of NO by the ion/ion neutralization reaction between NO+ and C6F5CF3− at thermal energy. International Journal of Mass Spectrometry and Ion Processes. 145(3). 165–175. 4 indexed citations
3.
Tsuji, Masaharu, et al.. (1994). Vibrational distributions of KrF(B) and XeCl(B) produced from ionic-recombination reactions of Kr+(2P3/2)+SF−6 and Xe+(2P3/2)+Cl−+He. The Journal of Chemical Physics. 101(4). 2880–2886. 4 indexed citations
4.
Tsuji, Masaharu, et al.. (1994). Ion/molecule reactions of CO2+ with simple aliphatic hydrocarbons at thermal energy. International Journal of Mass Spectrometry and Ion Processes. 135(2-3). 165–180. 4 indexed citations
5.
Tsuji, Masaharu, et al.. (1991). SiO2 film growth by ArF laser photolysis of SiH4/N2O mixtures. Applied Surface Science. 51(3-4). 171–176. 9 indexed citations
6.
Tsuji, Masaharu, et al.. (1991). Formation of CH(A 2Δ,B 2Σ−,C 2Σ+) by electron–ion recombination processes in the argon and krypton afterglow reactions of CH4. The Journal of Chemical Physics. 94(2). 1127–1133. 23 indexed citations
7.
Tsuji, Masaharu, et al.. (1990). Direct Oxidation of Silicon Substrates Using ArF Excimer Laser Photolysis of N2O at Low Temperatures. Chemistry Letters. 19(6). 863–866. 1 indexed citations
8.
Tsuji, Masaharu, et al.. (1990). Oxidation of Silicon Substrates in the Flowing Afterglow by Using O2, N2O, and H2O. Chemistry Letters. 19(6). 881–884. 2 indexed citations
9.
Tsuji, Masaharu, Kazuo Yamaguchi, Hiroshi Obase, & Yukio Nishimura. (1989). The electronic energy transfer from Kr(3P2) to 12CO and 13CO at thermal energy. Chemical Physics Letters. 161(1). 41–46. 8 indexed citations
10.
Tsuji, Masaharu, Kazuo Yamaguchi, Hiroshi Obase, & Yukio Nishimura. (1989). Rotational energy distribution of CO(c 3Π:v′=0) in the near-resonant Ar(3P2)+12CO and 13CO electronic energy transfer. The Journal of Chemical Physics. 90(10). 5891–5892. 4 indexed citations
11.
Tsuji, Masaharu, et al.. (1988). Nascent rovibrational distribution of O+2(A 2Πu) produced by He(2 3S) Penning ionization of O2. The Journal of Chemical Physics. 89(11). 6753–6757. 8 indexed citations
12.
Obase, Hiroshi, Masaharu Tsuji, & Yukio Nishimura. (1987). The rotational distribution of OCS+(Ã 2ΠΩ: 00) arising from the thermal energy charge transfer reaction of N2+ with OCS. Chemical Physics Letters. 141(1-2). 133–137. 4 indexed citations
13.
Tsuji, Masaharu, et al.. (1987). The rotational distribution of OCS+(Ã 2ΠΩ(0): Ω = , ) produced from the charge-transfer reaction of Ar+(2P ) with OCS at thermal energy. Chemical Physics Letters. 137(5). 421–424. 14 indexed citations
14.
Tsuji, Masaharu, John P. Maier, Hiroshi Obase, & Yukio Nishimura. (1986). The HCl+(A2Σ+-X2II) and HBr+(A2Σ+-X2II) emissions produced by the He(23S), Ne(3P0,2)-HCl, HBr penning ionization in low-pressure flowing afterglows. Chemical Physics. 110(1). 17–26. 14 indexed citations
15.
Tsuji, Masaharu, Ichiro Nagano, Nobuaki Nishiyama, et al.. (1986). Laser-induced fluorescence of methylidyne(A .rarw. X) from ion-molecule reactions of carbon monopositive ion(2P) with hydrocarbons at thermal energy. The Journal of Physical Chemistry. 90(14). 3106–3109. 2 indexed citations
16.
Obase, Hiroshi, et al.. (1985). The a3Π0,1-X1Σ+ emission systems of SnH+. Chemical Physics Letters. 119(6). 477–479. 6 indexed citations
17.
Tsuji, Masaharu, Martin Ochsner, John P. Maier, et al.. (1985). Study of Ne(3P0,2) Penning ionization of N2 by laser-induced fluorescence. Chemical Physics Letters. 120(1). 17–20. 9 indexed citations
18.
Obase, Hiroshi, Masaharu Tsuji, & Yukio Nishimura. (1984). N2+(B—X) Emission produced from the thermal-energy charge-transfer reaction of Ne2+ with N2 molecules. Chemical Physics Letters. 105(2). 214–217. 8 indexed citations
19.
Obase, Hiroshi, Masaharu Tsuji, & Yukio Nishimura. (1983). Energy-transfer reactions between He(2 3S) and Ne(3P0.2) metastable atoms and PN radicals. Chemical Physics. 74(1). 89–95. 12 indexed citations
20.
Obase, Hiroshi, Masaharu Tsuji, & Yukio Nishimura. (1981). Energy transfer processes between He(23S) and Ne(3P0.2) metastable atoms and CS radicals. Chemical Physics. 57(1-2). 89–95. 12 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

Rankless by CCL
2026