World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
62
Citations
16516
World Ranking
8717
National Ranking
598

Hideki Sugihara 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 Hideki Sugihara 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: 207 publications — 35th percentile

35% of scientists in this discipline score the same or lower.

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

Hideki Sugihara 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 Hideki Sugihara 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

Hideki Sugihara is affiliated with the National Institute of Advanced Industrial Science and Technology in Japan and has contributed to fields that intersect medicine and engineering.

Their recent research includes work published in two distinct areas: cerebrovascular diseases and membrane technology. Notable papers include:

  • The 21-Year Trend of Stroke Incidence in a General Japanese Population: Results from the Takashima Stroke Registry, 1990-2010 (2022, Cerebrovascular Diseases)
  • Hollow-Fiber RO Membranes Fabricated via Adsorption of Low-Charge Poly(vinyl alcohol) Copolymers (2021, Membranes)

The scientist frequently collaborates with researchers such as Naoyuki Takashima, Hisatomi Arima, Tanvir Chowdhury Turin, Yasuyuki Nakamura, and Yutaka Morita.

Publishing venues where their work often appears include:

  • Cerebrovascular Diseases
  • Membranes

Main fields of study in their research encompass:

  • Medicine
  • Engineering

More specialized subfields reflect the interdisciplinary nature of their work, including:

  • Biomedical Engineering
  • Epidemiology
  • Rehabilitation
  • Neurology
  • Water Science and Technology

The primary topics Hideki Sugihara addresses in their academic output are:

  • Acute Ischemic Stroke Management
  • Stroke Rehabilitation and Recovery
  • Neurological Disease Mechanisms and Treatments
  • Membrane Separation Technologies
  • Membrane-based Ion Separation Techniques
  • Nanopore and Nanochannel Transport Studies

Best Publications

  • Molecular Design of Coumarin Dyes for Efficient Dye-Sensitized Solar Cells

    Kohjiro Hara;Tadatake Sato;Ryuzi Katoh;Akihiro Furube

  • Highly efficient photon-to-electron conversion with mercurochrome-sensitized nanoporous oxide semiconductor solar cells

    Kohjiro Hara;Takaro Horiguchi;Tohru Kinoshita;Kazuhiro Sayama

  • Photoelectrochemical Properties of a Porous Nb2O5 Electrode Sensitized by a Ruthenium Dye

    Kazuhiro Sayama;Hideki Sugihara;Hironori Arakawa

  • Oligothiophene-containing coumarin dyes for efficient dye-sensitized solar cells.

    Kohjiro Hara;† Zhong-Sheng Wang;Tadatake Sato;Akihiro Furube

  • Photoelectrochemical Decomposition of Water into H2 and O2 on Porous BiVO4 Thin-Film Electrodes under Visible Light and Significant Effect of Ag Ion Treatment

    Kazuhiro Sayama;Atsushi Nomura;Takeo Arai;Tsuyoshi Sugita

  • Significant Efficiency Improvement of the Black Dye-Sensitized Solar Cell through Protonation of TiO2 Films

    Zhong-Sheng Wang;Takeshi Yamaguchi;Hideki Sugihara;Hironori Arakawa

  • Development of new photocatalytic water splitting into H2 and O2 using two different semiconductor photocatalysts and a shuttle redox mediator IO3-/I-.

    Ryu Abe;Kazuhiro Sayama;Hideki Sugihara

  • Photosensitization of a porous TiO2 electrode with merocyanine dyes containing a carboxyl group and a long alkyl chain

    Kazuhiro Sayama;Kohjiro Hara;Nahoko Mori;Makoto Satsuki

  • Photophysical and (photo)electrochemical properties of a coumarin dye.

    Zhong-Sheng Wang;Kohjiro Hara;Yasufumi Dan-oh;Chiaki Kasada

  • Photocatalytic overall water splitting under visible light by TaON and WO3 with an IO3-/I- shuttle redox mediator

    Ryu Abe;Tsuyoshi Takata;Hideki Sugihara;Kazunari Domen

  • Photocatalytic Activity of R3MO7 and R2Ti2O7 (R = Y, Gd, La; M = Nb, Ta) for Water Splitting into H2 and O2

    Ryu Abe;Masanobu Higashi;Kazuhiro Sayama;Yoshimoto Abe

  • Efficient Complete Oxidation of Acetaldehyde into CO2 over CuBi2O4/WO3 Composite Photocatalyst under Visible and UV Light Irradiation

    Takeo Arai;Masatoshi Yanagida;Yoshinari Konishi;Yasukazu Iwasaki

  • Dye-sensitized nanocrystalline TiO2 solar cells based on novel coumarin dyes

    Kohjiro Hara;Yasuhiro Tachibana;Yasuyo Ohga;Akira Shinpo

  • Molecular design of ruthenium(II) polypyridyl photosensitizers for efficient nanocrystalline TiO2 solar cells

    Ashraful Islam;Hideki Sugihara;Hironori Arakawa

  • Electronic-Insulating Coating of CaCO3 on TiO2 Electrode in Dye-Sensitized Solar Cells: Improvement of Electron Lifetime and Efficiency

    Zhong-Sheng Wang;Masatoshi Yanagida;Kazuhiro Sayama;Hideki Sugihara

  • Efficient Eosin Y Dye-Sensitized Solar Cell Containing Br-/Br3- Electrolyte

    Zhong-Sheng Wang;Kazuhiro Sayama;Hideki Sugihara

  • Dye sensitization of nanocrystalline titanium dioxide with square planar platinum(II) diimine dithiolate complexes.

    Ashraful Islam;Hideki Sugihara;Kohjiro Hara;Lok Pratap Singh

  • TiO2 Band Shift by Nitrogen-Containing Heterocycles in Dye-Sensitized Solar Cells: a Periodic Density Functional Theory Study

    Hitoshi Kusama;Hideo Orita;Hideki Sugihara

  • Dye-Sensitized Nanocrystalline TiO2 Solar Cells Based on Ruthenium(II) Phenanthroline Complex Photosensitizers

    Kohjiro Hara;Hideki Sugihara;Yasuhiro Tachibana;Ashraful Islam

  • Highly efficient dye-sensitized solar cells composed of mesoporous titanium dioxide

    Mingdeng Wei;Yoshinari Konishi;Haoshen Zhou;Masatoshi Yanagida

Frequent Co-Authors

Kazuhiro Sayama
Kazuhiro Sayama National Institute of Advanced Industrial Science and Technology
Masatoshi Yanagida
Masatoshi Yanagida National Institute for Materials Science
Kohjiro Hara
Kohjiro Hara National Institute of Advanced Industrial Science and Technology
Ryuzi Katoh
Ryuzi Katoh Nihon University
Yuichiro Himeda
Yuichiro Himeda National Institute of Advanced Industrial Science and Technology
Hironori Arakawa
Hironori Arakawa Tokyo University of Science
Ashraful Islam
Ashraful Islam National Institute for Materials Science
Ryu Abe
Ryu Abe Kyoto University
Haoshen Zhou
Haoshen Zhou Nanjing University
Mohammad Khaja Nazeeruddin
Mohammad Khaja Nazeeruddin École Polytechnique Fédérale de Lausanne

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