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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 49 14951 13469 1166 1058 325 7462

Masaaki Fujii publications per year

The chart shows the history of publications by Masaaki Fujii between 1983 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Masaaki Fujii published across 43 years, from 1983 to 2025, averaging 9.7 papers a year. Output peaked at 25 publications in 2008. 25 of the 418 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1983 to 2025. Vertical axis: number of publications, 0 to 25. Peak 25 publications in 2008. 1983: 4 publications 1984: 3 publications 1985: 9 publications 1986: 4 publications 1987: 4 publications 1988: 4 publications 1989: 1 publication 1990: 4 publications 1991: 4 publications 1992: 4 publications 1993: 3 publications 1994: 2 publications 1995: 2 publications 1996: 3 publications 1997: 1 publication 1998: 3 publications 1999: 4 publications 2000: 8 publications 2001: 7 publications 2002: 9 publications 2003: 14 publications 2004: 9 publications 2005: 12 publications 2006: 11 publications 2007: 22 publications 2008: 25 publications 2009: 23 publications 2010: 18 publications 2011: 18 publications 2012: 13 publications 2013: 25 publications 2014: 15 publications 2015: 11 publications 2016: 6 publications 2017: 6 publications 2018: 22 publications 2019: 6 publications 2020: 9 publications 2021: 11 publications 2022: 16 publications 2023: 18 publications 2024: 12 publications 2025: 13 publications
1983 2025

418 publications in total across all disciplines

View publications per year as a table
Masaaki Fujii: publications per year, 1983 to 2025
Year Publications
1983 4
1984 3
1985 9
1986 4
1987 4
1988 4
1989 1
1990 4
1991 4
1992 4
1993 3
1994 2
1995 2
1996 3
1997 1
1998 3
1999 4
2000 8
2001 7
2002 9
2003 14
2004 9
2005 12
2006 11
2007 22
2008 25
2009 23
2010 18
2011 18
2012 13
2013 25
2014 15
2015 11
2016 6
2017 6
2018 22
2019 6
2020 9
2021 11
2022 16
2023 18
2024 12
2025 13
Total 418
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Masaaki Fujii 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 Masaaki Fujii sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 321–340 publications, is where this scientist sits. 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
61–80 publications 1,295+

This scientist: 325 publications — 68th percentile

68% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643 325
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Masaaki Fujii 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 Masaaki Fujii sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 48–49 D-Index, is where this scientist sits. 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
40–41 D-Index 159+

This scientist: 49 D-Index — 19th percentile

19% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835 49
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

Masaaki Fujii is a researcher affiliated with the Tokyo Institute of Technology in Japan, specializing in the fields of chemistry and biochemistry, genetics, and molecular biology. Their work spans multiple subfields, including spectroscopy, molecular biology, atomic and molecular physics and optics, electrical and electronic engineering, and physical and theoretical chemistry.

Their research focuses on several main topics, particularly mass spectrometry techniques and applications, spectroscopy and quantum chemical studies, advanced chemical physics studies, ion channel regulation and function, nicotinic acetylcholine receptors study, analytical chemistry and chromatography, and photochemistry and electron transfer studies.

Fujii's recent publications illustrate the scope of their investigative interests and experimental techniques. These include:

  • "Rethinking Ion Transport by Ionophores: Experimental and Computational Investigation of Single Water Hydration in Valinomycin-K+ Complexes" (2021, The Journal of Physical Chemistry Letters)
  • "Identification of a tomato UDP-arabinosyltransferase for airborne volatile reception" (2023, Nature Communications)
  • "Chiral discrimination between tyrosine and β-cyclodextrin revealed by cryogenic ion trap infrared spectroscopy" (2020, Physical Chemistry Chemical Physics)
  • "Alkali and Alkaline Earth Metal Ions Complexes with a Partial Peptide of the Selectivity Filter in K+ Channels Studied by a Cold Ion Trap Infrared Spectroscopy" (2020, ChemPhysChem)
  • "Double Ion Trap Laser Spectroscopy of Alkali Metal Ion Complexes with a Partial Peptide of the Selectivity Filter in K+ ChannelsTemperature Effect and Barrier for Conformational Conversions" (2021, The Journal of Physical Chemistry A)

Throughout their career, Fujii has frequently collaborated with several co-authors, including:

  • Shun-ichi Ishiuchi (55 joint publications)
  • Keisuke Hirata (44 joint publications)
  • James M. Lisy (17 joint publications)
  • Otto Dopfer (9 joint publications)
  • Gilles Grégoire (9 joint publications)

Their work has been published in a variety of notable scientific journals, particularly:

  • Physical Chemistry Chemical Physics (16 publications)
  • The Journal of Physical Chemistry A (11 publications)
  • The Journal of Physical Chemistry Letters (10 publications)
  • ChemPhysChem (6 publications)
  • Journal of the American Chemical Society (4 publications)

Masaaki Fujii's research extensively utilizes spectroscopy and mass spectrometry to explore molecular mechanisms, especially ion transport and ion channel functions. Their investigations often involve sophisticated experimental tools such as ion trap infrared spectroscopy and laser spectroscopy to study metal ion complexes and peptide interactions related to selectivity filters in potassium channels.

Best Publications

  • OH stretching vibrations of phenol-(H2O)n (n=1-3) complexes observed by IR-UV double-resonance spectroscopy

    Shigeki Tanabe;Takayuki Ebata;Masaaki Fujii;Naohiko Mikami

  • Keto-enol tautomer of uracil and thymine

    Yuko Tsuchiya;Teruhiko Tamura;Masaaki Fujii;Mitsuo Ito

  • Plugging a Molecular Wire into Photosystem I: Reconstitution of the Photoelectric Conversion System on a Gold Electrode

    Nao Terasaki;Noritaka Yamamoto;Takashi Hiraga;Yoshinori Yamanoi

  • Bio-photosensor: Cyanobacterial photosystem I coupled with transistor via molecular wire

    Nao Terasaki;Noritaka Yamamoto;Kaoru Tamada;Mineyuki Hattori

  • Excited state hydrogen transfer dynamics in substituted phenols and their complexes with ammonia: ππ∗-πσ∗ energy gap propensity and ortho-substitution effect

    G. A. Pino;A. N. Oldani;E. Marceca;M. Fujii

  • Electronic spectra of uracil in a supersonic jet

    Masaaki Fujii;Teruhiko Tamura;Naohiko Mikami;Mitsuo Ito

  • Probing Solvation Dynamics around Aromatic and Biological Molecules at the Single-Molecular Level

    Otto Dopfer;Masaaki Fujii

  • Structure of Hydrogen-Bonded Clusters of 7-Azaindole Studied by IR Dip Spectroscopy and ab Initio Molecular Orbital Calculation

    Hiroshi Yokoyama;Hidekazu Wantanabe;Takuichiro Omi;Shun-ichi Ishiuchi

  • Internal rotation of the methyl group in fluorotoluene cations as studied by pulsed field ionization‐zero kinetic energy spectroscopy

    Ken Takazawa;Masaaki Fujii;Mitsuo Ito

  • Two-point-separation in super-resolution fluorescence microscope based on up-conversion fluorescence depletion technique

    Takeshi Watanabe;Yoshinori Iketaki;Takashige Omatsu;Kimihisa Yamamoto

  • Probing stepwise complexation in phenylazomethine dendrimers by a metallo-porphyrin core.

    Takane Imaoka;Reiko Tanaka;Sachiko Arimoto;Makoto Sakai

  • Real-time observation of ionization-induced hydrophobic-->hydrophilic switching.

    Shun Ichi Ishiuchi;Makoto Sakai;Yuji Tsuchida;Akihiro Takeda

  • Super-resolution microscope system and method for illumination

    Yoshinori Iketaki;Masaaki Fujii;Takashige Omatsu

  • Electronic spectra of jet-cooled azulene

    Masaaki Fujii;Takayuki Ebata;Naohiko Mikami;Mitsuo Ito

  • Watching Water Migration around a Peptide Bond

    Kohei Tanabe;Mitsuhiko Miyazaki;Matthias Schmies;Alexander Patzer

  • OH- and CH-Stretching Overtone Spectra of Catechol

    Henrik G. Kjaergaard;Daryl L. Howard;Daniel P. Schofield;Timothy W. Robinson

  • Structure of 1-Naphthol−Water Clusters Studied by IR Dip Spectroscopy and Ab Initio Molecular Orbital Calculations

    Ruriko Yoshino;Kenro Hashimoto;Takuichiro Omi;Shun-ichi Ishiuchi

  • Excited-State Triple-Proton Transfer in 7-Azaindole(H2O)2 and Reaction Path Studied by Electronic Spectroscopy in the Gas Phase and Quantum Chemical Calculations†

    Kenji Sakota;Christophe Jouvet;Claude Dedonder;Masaaki Fujii

  • Dual emission caused by ring inversion isomerization of a 4-methyl-2-pyridyl-pyrimidine copper(I) complex.

    Michihiro Nishikawa;Kuniharu Nomoto;Shoko Kume;Keiichi Inoue

  • IR signature of the photoionization-induced hydrophobic-->hydrophilic site switching in phenol-Arn clusters.

    Shun-ichi Ishiuchi;Makoto Sakai;Yuji Tsuchida;Akihiro Takeda

Frequent Co-Authors

Otto Dopfer
Otto Dopfer Technical University of Berlin
Mitsuo Ito
Mitsuo Ito Tohoku University
Christophe Jouvet
Christophe Jouvet Aix-Marseille University
Kimihisa Yamamoto
Kimihisa Yamamoto Tokyo Institute of Technology
Naohiko Mikami
Naohiko Mikami Tohoku University
Klaus Müller-Dethlefs
Klaus Müller-Dethlefs University of Manchester
Takayuki Ebata
Takayuki Ebata Hiroshima University
Takunori Taira
Takunori Taira National Institutes of Natural Sciences
Hideki Kandori
Hideki Kandori Nagoya Institute of Technology
Roland Mitrić
Roland Mitrić University of Würzburg

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