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Hiroaki Imai

Hiroaki Imai

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Materials Science 76 3288 3174 136 133 487 20527
Chemistry 76 4257 3865 238 224 451 20205

Hiroaki Imai publications per year

The chart shows the history of publications by Hiroaki Imai between 1986 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hiroaki Imai published across 40 years, from 1986 to 2025, averaging 13.6 papers a year. Output peaked at 28 publications in 2004. 33 of the 543 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1986 to 2025. Vertical axis: number of publications, 0 to 28. Peak 28 publications in 2004. 1986: 2 publications 1987: 1 publication 1988: 4 publications 1989: 0 publications 1990: 0 publications 1991: 2 publications 1992: 1 publication 1993: 1 publication 1994: 11 publications 1995: 5 publications 1996: 13 publications 1997: 16 publications 1998: 11 publications 1999: 9 publications 2000: 7 publications 2001: 7 publications 2002: 13 publications 2003: 19 publications 2004: 28 publications 2005: 23 publications 2006: 25 publications 2007: 11 publications 2008: 9 publications 2009: 11 publications 2010: 24 publications 2011: 11 publications 2012: 24 publications 2013: 20 publications 2014: 10 publications 2015: 28 publications 2016: 26 publications 2017: 26 publications 2018: 17 publications 2019: 22 publications 2020: 17 publications 2021: 23 publications 2022: 18 publications 2023: 15 publications 2024: 13 publications 2025: 20 publications
1986 2025

543 publications in total across all disciplines

View publications per year as a table
Hiroaki Imai: publications per year, 1986 to 2025
Year Publications
1986 2
1987 1
1988 4
1989 0
1990 0
1991 2
1992 1
1993 1
1994 11
1995 5
1996 13
1997 16
1998 11
1999 9
2000 7
2001 7
2002 13
2003 19
2004 28
2005 23
2006 25
2007 11
2008 9
2009 11
2010 24
2011 11
2012 24
2013 20
2014 10
2015 28
2016 26
2017 26
2018 17
2019 22
2020 17
2021 23
2022 18
2023 15
2024 13
2025 20
Total 543
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Hiroaki Imai publication distribution in Materials Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Materials Science in 2026. The highlighted bar marks where Hiroaki Imai sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 57 bars. Horizontal axis: publications, 50–69 to 1,163+. Vertical axis: number of scientists, 0 to 891. Most scientists, 891, have 190–209 publications. The last bar groups every scientist with 1,163 publications or more. The highlighted bar, 470–489 publications, is where this scientist sits. 50–69 publications: 28 scientists 70–89 publications: 152 scientists 90–109 publications: 356 scientists 110–129 publications: 487 scientists 130–149 publications: 723 scientists 150–169 publications: 835 scientists 170–189 publications: 850 scientists 190–209 publications: 891 scientists 210–229 publications: 862 scientists 230–249 publications: 766 scientists 250–269 publications: 726 scientists 270–289 publications: 665 scientists 290–309 publications: 593 scientists 310–329 publications: 537 scientists 330–349 publications: 477 scientists 350–369 publications: 440 scientists 370–389 publications: 356 scientists 390–409 publications: 321 scientists 410–429 publications: 256 scientists 430–449 publications: 246 scientists 450–469 publications: 216 scientists 470–489 publications: 212 scientists 490–509 publications: 174 scientists 510–529 publications: 194 scientists 530–549 publications: 162 scientists 550–569 publications: 131 scientists 570–589 publications: 111 scientists 590–609 publications: 103 scientists 610–629 publications: 99 scientists 630–649 publications: 77 scientists 650–669 publications: 92 scientists 670–689 publications: 56 scientists 690–709 publications: 53 scientists 710–729 publications: 53 scientists 730–749 publications: 38 scientists 750–769 publications: 52 scientists 770–789 publications: 43 scientists 790–809 publications: 38 scientists 810–829 publications: 34 scientists 830–849 publications: 25 scientists 850–869 publications: 18 scientists 870–889 publications: 20 scientists 890–909 publications: 24 scientists 910–929 publications: 27 scientists 930–949 publications: 20 scientists 950–969 publications: 17 scientists 970–989 publications: 10 scientists 990–1,009 publications: 16 scientists 1,010–1,029 publications: 13 scientists 1,030–1,049 publications: 12 scientists 1,050–1,069 publications: 9 scientists 1,070–1,089 publications: 8 scientists 1,090–1,109 publications: 7 scientists 1,110–1,129 publications: 9 scientists 1,130–1,149 publications: 2 scientists 1,150–1,162 publications: 5 scientists 1,163+ publications: 100 scientists
50–69 publications 1,163+

This scientist: 487 publications — 85th percentile

85% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,163 publications or more.

View publications distribution as a table
Number of Materials Science scientists by publication count, Research.com 2026 ranking edition. Based on 12,847 ranked scientists.
Publications Scientists This scientist
50–69 28
70–89 152
90–109 356
110–129 487
130–149 723
150–169 835
170–189 850
190–209 891
210–229 862
230–249 766
250–269 726
270–289 665
290–309 593
310–329 537
330–349 477
350–369 440
370–389 356
390–409 321
410–429 256
430–449 246
450–469 216
470–489 212 487
490–509 174
510–529 194
530–549 162
550–569 131
570–589 111
590–609 103
610–629 99
630–649 77
650–669 92
670–689 56
690–709 53
710–729 53
730–749 38
750–769 52
770–789 43
790–809 38
810–829 34
830–849 25
850–869 18
870–889 20
890–909 24
910–929 27
930–949 20
950–969 17
970–989 10
990–1,009 16
1,010–1,029 13
1,030–1,049 12
1,050–1,069 9
1,070–1,089 8
1,090–1,109 7
1,110–1,129 9
1,130–1,149 2
1,150–1,162 5
1,163+ 100
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Hiroaki Imai D-index placement in Materials Science in 2026

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

No. of scientists
200 400 600
Bar chart with 64 bars. Horizontal axis: D-Index, 40–41 to 165+. Vertical axis: number of scientists, 0 to 667. Most scientists, 667, have 52–53 D-Index. The last bar groups every scientist with 165 D-Index or more. The highlighted bar, 76–77 D-Index, is where this scientist sits. 40–41 D-Index: 211 scientists 42–43 D-Index: 450 scientists 44–45 D-Index: 612 scientists 46–47 D-Index: 612 scientists 48–49 D-Index: 598 scientists 50–51 D-Index: 657 scientists 52–53 D-Index: 667 scientists 54–55 D-Index: 621 scientists 56–57 D-Index: 597 scientists 58–59 D-Index: 610 scientists 60–61 D-Index: 587 scientists 62–63 D-Index: 606 scientists 64–65 D-Index: 533 scientists 66–67 D-Index: 490 scientists 68–69 D-Index: 469 scientists 70–71 D-Index: 378 scientists 72–73 D-Index: 421 scientists 74–75 D-Index: 359 scientists 76–77 D-Index: 323 scientists 78–79 D-Index: 299 scientists 80–81 D-Index: 230 scientists 82–83 D-Index: 210 scientists 84–85 D-Index: 195 scientists 86–87 D-Index: 203 scientists 88–89 D-Index: 175 scientists 90–91 D-Index: 175 scientists 92–93 D-Index: 142 scientists 94–95 D-Index: 121 scientists 96–97 D-Index: 117 scientists 98–99 D-Index: 107 scientists 100–101 D-Index: 88 scientists 102–103 D-Index: 85 scientists 104–105 D-Index: 68 scientists 106–107 D-Index: 62 scientists 108–109 D-Index: 57 scientists 110–111 D-Index: 45 scientists 112–113 D-Index: 49 scientists 114–115 D-Index: 50 scientists 116–117 D-Index: 34 scientists 118–119 D-Index: 38 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 29 scientists 124–125 D-Index: 28 scientists 126–127 D-Index: 24 scientists 128–129 D-Index: 33 scientists 130–131 D-Index: 28 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 20 scientists 136–137 D-Index: 23 scientists 138–139 D-Index: 17 scientists 140–141 D-Index: 12 scientists 142–143 D-Index: 17 scientists 144–145 D-Index: 21 scientists 146–147 D-Index: 13 scientists 148–149 D-Index: 11 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 13 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 4 scientists 162–163 D-Index: 4 scientists 164 D-Index: 3 scientists 165+ D-Index: 98 scientists
40–41 D-Index 165+

This scientist: 76 D-Index — 75th percentile

75% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 165 D-Index or more.

View D-Index distribution as a table
Number of Materials Science scientists by D-index, Research.com 2026 ranking edition. Based on 12,847 ranked scientists.
D-Index Scientists This scientist
40–41 211
42–43 450
44–45 612
46–47 612
48–49 598
50–51 657
52–53 667
54–55 621
56–57 597
58–59 610
60–61 587
62–63 606
64–65 533
66–67 490
68–69 469
70–71 378
72–73 421
74–75 359
76–77 323 76
78–79 299
80–81 230
82–83 210
84–85 195
86–87 203
88–89 175
90–91 175
92–93 142
94–95 121
96–97 117
98–99 107
100–101 88
102–103 85
104–105 68
106–107 62
108–109 57
110–111 45
112–113 49
114–115 50
116–117 34
118–119 38
120–121 37
122–123 29
124–125 28
126–127 24
128–129 33
130–131 28
132–133 21
134–135 20
136–137 23
138–139 17
140–141 12
142–143 17
144–145 21
146–147 13
148–149 11
150–151 14
152–153 13
154–155 9
156–157 10
158–159 7
160–161 4
162–163 4
164 3
165+ 98
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Overview

Hiroaki Imai is affiliated with Keio University in Japan and has contributed extensively to research in materials science and engineering. Their work spans a range of topics with a particular focus on materials chemistry and its applications.

The scientist's main fields of study include:

  • Materials Science
  • Engineering

Subfields of study encompass:

  • Materials Chemistry
  • Biomaterials
  • Electrical and Electronic Engineering
  • Biomedical Engineering
  • Organic Chemistry

Their research covers several main topics, including:

  • Polydiacetylene-based materials and applications
  • Calcium Carbonate Crystallization and Inhibition
  • Luminescence and Fluorescent Materials
  • Supramolecular Self-Assembly in Materials
  • Advancements in Battery Materials
  • Conducting polymers and applications
  • Covalent Organic Framework Applications

Notable frequent coauthors are:

  • Yuya Oaki (81 collaborations)
  • Hiroto Watanabe (15 collaborations)
  • Yasuhiko Igarashi (14 collaborations)
  • Mihiro Takasaki (10 collaborations)
  • Toshihiko Mandai (8 collaborations)

Hiroaki Imai has published multiple papers in prominent venues. Some recent publications include:

  • Ultrahigh-Sensitive Compression-Stress Sensor Using Integrated Stimuli-Responsive Materials, 2021, Advanced Materials
  • Ultraporous, Ultrasmall MgMn2O4 Spinel Cathode for a Room-Temperature Magnesium Rechargeable Battery, 2023, ACS Nano
  • Phase Transition Behavior of MgMn2O4 Spinel Oxide Cathode during Magnesium Ion Insertion, 2021, Chemistry of Materials
  • Spinel-Type MgMn2O4 Nanoplates with Vanadate Coating for a Positive Electrode of Magnesium Rechargeable Batteries, 2020, Langmuir
  • Fluorine-Free Substrate-Independent Superhydrophobic Coatings by Nanoarchitectonics of Polydispersed 2D Materials, 2023, Bulletin of the Chemical Society of Japan

Frequent publication venues where Hiroaki Imai's work appears are:

  • CrystEngComm (11 publications)
  • Scientific Reports (7 publications)
  • Nanoscale Advances (6 publications)
  • Nanoscale (5 publications)
  • Small (4 publications)

Best Publications

  • Crystallization and Reduction of Sol-Gel-Derived Zinc Oxide Films by Irradiation with Ultraviolet Lamp

    Naoko Asakuma;Hiroshi Hirashima;Hiroaki Imai;Toshimi Fukui

  • Growth conditions for wurtzite zinc oxide films in aqueous solutions

    Satoshi Yamabi;Hiroaki Imai

  • Growth of Submicrometer-Scale Rectangular Parallelepiped Rutile TiO2 Films in Aqueous TiCl3 Solutions under Hydrothermal Conditions

    Eiji Hosono;Shinobu Fujihara;Keita Kakiuchi;Hiroaki Imai

  • Synthesis of silica nanoparticles having a well-ordered mesostructure using a double surfactant system.

    Keisei Suzuki;Kenichi Ikari;Hiroaki Imai

  • Direct preparation of anatase TiO2 nanotubes in porous alumina membranes

    Hiroaki Imai;Yuko Takei;Kazuhiko Shimizu;Manabu Matsuda

  • Low-temperature synthesis of anatase thin films on glass and organic substrates by direct deposition from aqueous solutions

    Kazuhiko Shimizu;Hiroaki Imai;Hiroshi Hirashima;Koji Tsukuma

  • Two types of oxygen-deficient centers in synthetic silica glass

    Hiroaki Imai;Kazuo Arai;Hiroshi Imagawa;Hideo Hosono

  • Bridged Nanocrystals in Biominerals and Their Biomimetics: Classical Yet Modern Crystal Growth on the Nanoscale†

    Yuya Oaki;Akiko Kotachi;Takashi Miura;Hiroaki Imai

  • The hierarchical architecture of nacre and its mimetic material

    Yuya Oaki;Hiroaki Imai

  • Experimental Demonstration for the Morphological Evolution of Crystals Grown in Gel Media

    Yuya Oaki and;Hiroaki Imai

  • Crystal phase control for titanium dioxide films by direct deposition in aqueous solutions

    Satoshi Yamabi;Hiroaki Imai

  • Growth of layered basic zinc acetate in methanolic solutions and its pyrolytic transformation into porous zinc oxide films.

    Eiji Hosono;Shinobu Fujihara;Toshio Kimura;Hiroaki Imai

  • Hydrothermal routes to prepare nanocrystalline mesoporous SnO2 having high thermal stability

    Shinobu Fujihara;Takahiro Maeda;Hirotoshi Ohgi;Eiji Hosono

  • Superhydrophobic silica films by sol–gel co-precursor method

    Sanjay S. Latthe;Hiroaki Imai;V. Ganesan;A. Venkateswara Rao

  • Non-Basic Solution Routes to Prepare ZnO Nanoparticles

    Eiji Hosono;Shinobu Fujihara;Toshio Kimura;Hiroaki Imai

  • Nanoengineering in echinoderms: the emergence of morphology from nanobricks.

    Yuya Oaki;Hiroaki Imai

  • Experimental evidence for the Si-Si bond model of the 7.6-eV band in SiO2 glass.

    H. Hosono;Y. Abe;H. Imagawa;H. Imai

  • A biomimetic approach for hierarchically structured inorganic crystals through self-organization

    Hiroaki Imai;Yuya Oaki;Akiko Kotachi

  • Two‐photon processes in defect formation by excimer lasers in synthetic silica glass

    K. Arai;H. Imai;H. Hosono;Y. Abe

  • One-pot synthesis of manganese oxide nanosheets in aqueous solution : Chelation-mediated parallel control of reaction and morphology

    Yuya Oaki;Hiroaki Imai

Frequent Co-Authors

Yuya Oaki
Yuya Oaki Keio University
Eiji Hosono
Eiji Hosono National Institute of Advanced Industrial Science and Technology
Shinobu Fujihara
Shinobu Fujihara Keio University
Satoshi Wada
Satoshi Wada University of Yamanashi
Hajime Haneda
Hajime Haneda National Institute for Materials Science
Hiroyuki Kageyama
Hiroyuki Kageyama National Institute of Advanced Industrial Science and Technology
Yoshihiro Abe
Yoshihiro Abe Nagoya Institute of Technology
Haoshen Zhou
Haoshen Zhou Nanjing University
Hideo Hosono
Hideo Hosono Tokyo Institute of Technology
Sanjay S. Latthe
Sanjay S. Latthe Shivaji University

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