Masao Kotani

2.0k total citations · 1 hit paper
37 papers, 1.5k citations indexed

About

Masao Kotani is a scholar working on Cell Biology, Molecular Biology and Physical and Theoretical Chemistry. According to data from OpenAlex, Masao Kotani has authored 37 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Cell Biology, 10 papers in Molecular Biology and 9 papers in Physical and Theoretical Chemistry. Recurrent topics in Masao Kotani's work include Hemoglobin structure and function (12 papers), Advanced Chemical Physics Studies (7 papers) and Protein Structure and Dynamics (6 papers). Masao Kotani is often cited by papers focused on Hemoglobin structure and function (12 papers), Advanced Chemical Physics Studies (7 papers) and Protein Structure and Dynamics (6 papers). Masao Kotani collaborates with scholars based in Japan, United States and Sweden. Masao Kotani's co-authors include Tetsutarō Iizuka, Hideki Morimoto, Takashi Yonetani, Eiichi Ishiguro, Hiroshi Watari, Kiyohiro Imai, Masao Kuroda, Hirokazu Yamamoto, Yukio Mizuno and Akira Tasaki and has published in prestigious journals such as Journal of Biological Chemistry, Reviews of Modern Physics and Annals of the New York Academy of Sciences.

In The Last Decade

Masao Kotani

36 papers receiving 1.3k citations

Hit Papers

Studies on the function of abnormal hemoglobins I. An imp... 1970 2026 1988 2007 1970 100 200 300
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Studies on the function of abnormal hemoglobins I. An improved method for automatic measurement of the oxygen equilibrium curve of hemoglobin
    1970 320 citations Kiyohiro Imai, Hideki Morimoto et al. Biochimica et Biophysica Acta (BBA) - Protein Structure profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Masao Kotani Japan 20 884 556 378 267 241 37 1.5k
Richard H. Crepeau United States 25 419 0.5× 484 0.9× 353 0.9× 243 0.9× 231 1.0× 47 1.4k
Jayashree Soman United States 18 696 0.8× 884 1.6× 248 0.7× 208 0.8× 161 0.7× 28 1.4k
Paul Stein United States 15 361 0.4× 418 0.8× 259 0.7× 162 0.6× 87 0.4× 18 1.2k
David Braunstein United States 13 1.2k 1.3× 1.3k 2.4× 761 2.0× 222 0.8× 210 0.9× 15 1.9k
Todd B. Sauke United States 11 834 0.9× 1.1k 1.9× 540 1.4× 248 0.9× 160 0.7× 19 1.6k
Robert S. Armstrong Australia 20 220 0.2× 250 0.4× 145 0.4× 121 0.5× 126 0.5× 72 1.4k
Remo Hochstrasser United States 25 603 0.7× 872 1.6× 1.0k 2.7× 411 1.5× 103 0.4× 52 2.2k
W. Schildkamp United States 14 404 0.5× 818 1.5× 289 0.8× 232 0.9× 106 0.4× 35 1.7k
Friedrich Schotte United States 23 863 1.0× 1.7k 3.0× 728 1.9× 442 1.7× 175 0.7× 40 3.0k
N. V. Shokhirev United States 21 441 0.5× 480 0.9× 278 0.7× 66 0.2× 44 0.2× 53 1.3k

Countries citing papers authored by Masao Kotani

Since Specialization
Citations

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

Fields of papers citing papers by Masao Kotani

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masao Kotani

This figure shows the co-authorship network connecting the top 25 collaborators of Masao Kotani. A scholar is included among the top collaborators of Masao Kotani 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 Masao Kotani. Masao Kotani 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.
Kotani, Masao. (1984). Scientific reminiscence?my pilgrimage through quantum molecular sciences. International Journal of Quantum Chemistry. 26(S18). 11–20. 3 indexed citations
2.
Kotani, Masao, et al.. (1983). De-excitation probability of hydrogen atoms excited by reflection from a beryllium surface. Journal of Physics D Applied Physics. 16(3). 439–444. 7 indexed citations
3.
Iizuka, Tetsutarō, Hirokazu Yamamoto, Masao Kotani, & Takashi Yonetani. (1974). Low temperature photodissociation of hemoproteins: Oxygenated cobalt-myoglobin and hemoglobin. Biochimica et Biophysica Acta (BBA) - Protein Structure. 351(2). 182–195. 27 indexed citations
4.
Yonetani, Takashi, et al.. (1972). Analysis of Thermal Equilibria between High Spin and Low Spin States in Mesohemoproteins. Journal of Biological Chemistry. 247(3). 863–868. 31 indexed citations
5.
Imai, Kiyohiro, et al.. (1970). Studies on the function of abnormal hemoglobins I. An improved method for automatic measurement of the oxygen equilibrium curve of hemoglobin. Biochimica et Biophysica Acta (BBA) - Protein Structure. 200(2). 189–196. 320 indexed citations breakdown →
6.
Imai, Kiyohiro, et al.. (1970). Studies on the function of abnormal hemoglobins II. Oxygen equilibrium of abnormal hemoglobins: Shimonoseki, Ube II, Hikari, Gifu, and Agenogi. Biochimica et Biophysica Acta (BBA) - Protein Structure. 200(2). 197–202. 32 indexed citations
7.
Iizuka, Tetsutarō & Masao Kotani. (1969). Analysis of thermal equilibrium between high-spin and low-spin states in ferrihemoglobin complexes. Biochimica et Biophysica Acta (BBA) - Protein Structure. 194(2). 351–363. 136 indexed citations
8.
Iizuka, Tetsutarō, Masao Kotani, & Takashi Yonetani. (1968). A thermal equilibrium between high- and low-spin states in ferric cytochrome c peroxidase and some discussion on the enzyme substrate complex. Biochimica et Biophysica Acta (BBA) - Enzymology. 167(2). 257–267. 64 indexed citations
9.
Kotani, Masao. (1968). Fluctuation in Quarternary Structure of Proteins and Cooperative Ligand Binding. I. Progress of Theoretical Physics Supplement. E68. 233–241. 8 indexed citations
10.
Tasaki, Akira, Jinya Ōtsuka, & Masao Kotani. (1967). Magnetic susceptibility measurements on hemoproteins down to 4.2°K. Biochimica et Biophysica Acta (BBA) - Protein Structure. 140(2). 284–290. 78 indexed citations
11.
Morimoto, Hideki & Masao Kotani. (1966). Fluorine superhyperfine structure in EPR spectra of the single crystal of the myoglobin fluoride. Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis. 126(1). 176–178. 18 indexed citations
12.
Kotani, Masao. (1964). Coupling of Equivalent Particles in a Field of Given Symmetry. Journal of the Physical Society of Japan. 19(11). 2150–2156. 8 indexed citations
13.
Kotani, Masao. (1961). 生物物理学の発展. Seibutsu Butsuri. 1(1). 14–19. 2 indexed citations
14.
Kotani, Masao. (1960). Properties ofd-Electrons in Complex Salts. Part I. Progress of Theoretical Physics Supplement. 14. 1–16. 18 indexed citations
15.
Ishiguro, Eiichi, et al.. (1957). Electronic Structure of Simple Homonuclear Diatomic Molecules II. Lithium Molecule. Journal of the Physical Society of Japan. 12(12). 1355–1385. 29 indexed citations
16.
Kotani, Masao, et al.. (1957). Electronic Structure of Simple Homonuclear Diatomic Molecules I. Oxygen Molecule. Journal of the Physical Society of Japan. 12(6). 707–736. 78 indexed citations
17.
Kotani, Masao, et al.. (1954). Tables of Integrals Useful for the Calculations of Molecular Energies. IV. Journal of the Physical Society of Japan. 9(4). 553–557. 11 indexed citations
18.
Itoh, Takashi, Kimio Ohno, & Masao Kotani. (1953). On the Valence Theory of the Methyl Radical. Journal of the Physical Society of Japan. 8(1). 41–49. 13 indexed citations
19.
Townes, C. H., et al.. (1953). The Electronic Structure ofO2. Physical Review. 90(4). 542–543. 22 indexed citations
20.
Nakamura, Takashi, et al.. (1952). Interaction of  -Electrons in the Acetylene Molecule. Progress of Theoretical Physics. 8(4). 387–400. 9 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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