World's Best Scientists 2026 revealed!
Masamichi Tsuboi

Masamichi Tsuboi

D-Index & Metrics

Chemistry

D-Index
62
Citations
11420
World Ranking
8997
National Ranking
629

Masamichi Tsuboi publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Masamichi Tsuboi sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 367 publications — 76th percentile

76% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Masamichi Tsuboi D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Masamichi Tsuboi sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 62 D-Index — 52nd percentile

52% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Masamichi Tsuboi is affiliated with the University of Tokyo in Japan and works primarily within the fields of Physics and Astronomy. They have a research focus in Astronomy and Astrophysics, contributing significantly to understanding cosmic phenomena through observational and theoretical studies.

Their work spans various subfields including Nuclear and High Energy Physics alongside specialized topics such as Oncology, Biotechnology, and Pulmonary and Respiratory Medicine, although the majority of their research centers around astronomical sciences.

Key research topics covered by Masamichi Tsuboi include:

  • Astrophysics and Star Formation Studies
  • Stellar, planetary, and galactic studies
  • Astrophysical Phenomena and Observations
  • Astrophysics and Cosmic Phenomena
  • Galaxies: Formation, Evolution, Phenomena
  • Pulsars and Gravitational Waves Research
  • Astro and Planetary Science

The recent publication record includes papers published predominantly in journals concerned with astronomy and astrophysics. Frequent publication venues for Tsuboi are:

  • Publications of the Astronomical Society of Japan
  • arXiv (Cornell University)
  • The Astrophysical Journal Letters
  • The Astrophysical Journal
  • The Veterinary Journal

Selected recent papers authored or co-authored by Masamichi Tsuboi include:

  • "The Jet and Resolved Features of the Central Supermassive Black Hole of M87 Observed with EHT in 2017-Comparison with the GMVA 86 GHz Results," 2024, The Astrophysical Journal Letters
  • "X3: A High-mass Young Stellar Object Close to the Supermassive Black Hole Sgr A*," 2023, The Astrophysical Journal
  • "How far actually is the Galactic Center IRS 13E3 from Sagittarius A*?", 2020, Publications of the Astronomical Society of Japan
  • "Where is the western part of the Galactic Center Lobe located really?", 2020, Publications of the Astronomical Society of Japan
  • "Sub-millimeter detection of a Galactic center cool star IRS 07 by ALMA," 2020, Publications of the Astronomical Society of Japan

Masamichi Tsuboi collaborates frequently with several co-authors including:

  • Makoto Miyoshi
  • T. Tsutsumi
  • Ryosuke Miyawaki
  • Atsushi Miyazaki
  • Yoshimi Kitamura

Best Publications

  • Optically Active Lattice Vibrations as Treated by the GF-Matrix Method

    Takehiko Shimanouchi;Masamichi Tsuboi;Tatsuo miyazawa

  • Application of Infrared Spectroscopy to Structure Studies of Nucleic Acids

    Masamichi Tsuboi

  • Molecular geometry in an excited electronic state and a preresonance Raman effect.

    Akiko Y. Hirakawa;Masamichi Tsuboi

  • The Molecular Structure of N-Methylacetamide

    San-ichiro Mizushima;Takehiko Simanouti;Saburo Nagakura;Kenji Kuratani

  • Interaction of poly-L-lysine and nucleic acids.

    Masamichi Tsuboi;Kimiko Matsuo;Paul O.P. Ts'o

  • Assignments of the vibrational frequencies of glycine

    Masamichi Tsuboi;Takaharu Onishi;Ichiro Nakagawa;Takehiko Shimanouchi

  • Vibrational Spectra of Phosphite and Hypophosphite Anions, and the Characteristic Frequencies of PO3-- and PO2- Groups

    Unknown

  • In-plane vibrational modes in the uracil molecule from an ab initio MO calculation

    Yoshifumi Nishimura;Masamichi Tsuboi;Shigeki Kato;Keiji Morokuma

  • Infrared absorption spectra of protonated and deprotonated nucleosides.

    Masamichi Tsuboi;Yoshimasa Kyogoku;Takehiko Shimanouchi

  • Conformation-sensitive Raman lines of mononucleotides and their use in a structure analysis of polynucleotides: guanine and cytosine nucleotides

    Yoshifumi Nishimura;Masamichi Tsuboi;Tomohiro Sato;Katsuyuki Aoki

  • Normal vibrations of glycine and deuterated glycine molecules

    Shigeko Suzuki;Takehiko Shimanouchi;Masamichi Tsuboi

  • Two types of conformers with distinct Fe-C-O configuration in the ferrous CO complex of horseradish peroxidase. Resonance Raman and infarared spectroscopic studies with native and deuteroheme-substituted enzymes.

    T Uno;Y Nishimura;M Tsuboi;R Makino

  • The structure of a filamentous bacteriophage.

    Ying A. Wang;Xiong Yu;Stacy Overman;Masamichi Tsuboi

  • A preliminary investigation on the molecular structure of rice dwarf virus ribonucleic acid

    Tomohiro Sato;Yoshimasa Kyogoku;Shigesada Higuchi;Yukio Mitsui

  • Near Infrared Spectra of Compounds with Two Peptide Bonds and the Configuration of a Polypeptide Chain. VII. On the Extended Forms of Polypeptide Chains

    Masamichi Tsuboi;Takehiko Shimanouchi;San-Ichiro Mizushima

  • 15N isotope effects on the vibrational frequencies of aniline and assignments of the frequencies of its nh2 group

    M. Tsuboi

  • Infrared spectra of isotopic polyglycines

    S. Suzuki;Y. Iwashita;T. Shimanouchi;M. Tsuboi

  • Infrared and Raman spectra of adenine and its 15N and 13C substitution products

    Akiko Y. Hirakawa;Hideyuki Okada;Setsuko Sasagawa;Masamichi Tsuboi

  • Intra-red absorption spectra of the single crystals of 1-methyl-thymine, 9-methyladenine and their 1:1 complex

    Y. Kyogoku;S. Higuchi;M. Tsuboi

  • Subunit orientation in the filamentous virus Ff(fd, f1, M13).

    Stacy A. Overman;Masamichi Tsuboi;Masamichi Tsuboi;George J. Thomas;George J. Thomas

  • The resonance Raman frequencies of the Fe-CO stretching and bending modes in the CO complex of cytochrome P-450cam.

    T Uno;Y Nishimura;R Makino;T Iizuka

  • The infra-red spectrum and molecular configuration of sodium deoxyribonucleate

    Unknown

  • Infrared Spectra of Nucleic Acids and Related Compounds

    Takehiko Shimanouchi;Masamichi Tsuboi;Yoshimasa Kyogoku

Frequent Co-Authors

Yoshifumi Nishimura
Yoshifumi Nishimura Hiroshima University
Takehiko Shimanouchi
Takehiko Shimanouchi University of Tokyo
Yoichi Iitaka
Yoichi Iitaka University of Tokyo
Keiji Morokuma
Keiji Morokuma Kyoto University
Shigeki Kato
Shigeki Kato Kyoto University
Kazuo Nakamoto
Kazuo Nakamoto Marquette University
Mitsuo Tasumi
Mitsuo Tasumi University of Tokyo
Susumu Nishimura
Susumu Nishimura University of Tsukuba
Shigeo Ohta
Shigeo Ohta Juntendo University
Ichiro Nakagawa
Ichiro Nakagawa Kyoto University

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