World's Best Scientists 2026 revealed!

D-Index & Metrics

Materials Science

D-Index
56
Citations
11013
World Ranking
8269
National Ranking
474

Ken Ishikawa 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 Ken Ishikawa sits on this spectrum.

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 publications 1,163+

This scientist: 388 publications — 76th percentile

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

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

Ken Ishikawa 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 Ken Ishikawa sits on this spectrum.

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 D-Index 165+

This scientist: 56 D-Index — 37th percentile

37% of scientists in this discipline score the same or lower.

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

Overview

Ken Ishikawa is affiliated with the Tokyo Institute of Technology in Japan, specializing in materials science and chemistry. Their research primarily spans the fields of materials science and chemistry, with notable focus areas including materials chemistry, organic chemistry, and electronic, optical, and magnetic materials.

Their work extensively covers topics such as liquid crystal research advancements, synthesis and properties of aromatic compounds, material dynamics and properties, photonic crystals and applications, polydiacetylene-based materials and applications, crystallization and solubility studies, and X-ray diffraction in crystallography.

Ken Ishikawa has contributed to multiple scientific publications across several prominent venues. Frequent publication outlets include:

  • Physical review. E
  • The Cambridge Structural Database
  • Macromolecules
  • Japanese Journal of Applied Physics
  • Journal of Materials Chemistry C

Their publication record features the following recent papers, illustrating the scope and progression of their research:

  • Emergence of paraelectric, improper antiferroelectric, and proper ferroelectric nematic phases in a liquid crystal composed of polar molecules, 2022, Physical review. E
  • Cross-Linking of Poly(arylenebutadiynylene)s and Its Effect on Charge Carrier Mobilities in Thin-Film Transistors, 2021, Macromolecules
  • Ultrahigh dielectric constant induced by the interfacial polarization between liquid crystal droplets and polymer matrix, 2020, Japanese Journal of Applied Physics
  • Dinaphtho[2,1-b:1',2'-d]thiophenes as high refractive index materials exploiting the potential characteristics of "dynamic thiahelicenes", 2021, Journal of Materials Chemistry C
  • Transformation of polar nematic phases in the presence of an electric field, 2024, Physical review. E

Ken Ishikawa has collaborated closely with several researchers in their field. Frequent co-authors include:

  • A. V. Emelyanenko
  • Vladimir Yu. Rudyak
  • Fumito Araoka
  • Hiroya Nishikawa
  • Yoko Nambu

Best Publications

  • Antiferroelectric chiral smectic liquid crystals

    Atsuo Fukuda;Yoichi Takanishi;Tadaaki Isozaki;Ken Ishikawa

  • Light extraction from organic light-emitting diodes enhanced by spontaneously formed buckles

    Won Hoe Koo;Soon Moon Jeong;Fumito Araoka;Ken Ishikawa

  • Electro-tunable optical diode based on photonic bandgap liquid-crystal heterojunctions.

    Jisoo Hwang;Myoung Hoon Song;Byoungchoo Park;Byoungchoo Park;Suzushi Nishimura

  • Fabrication of a simultaneous red-green-blue reflector using single-pitched cholesteric liquid crystals.

    Na Young Ha;Youko Ohtsuka;Soon Moon Jeong;Suzushi Nishimura

  • Recent progress in degradation and stabilization of organic solar cells

    Huanqi Cao;Weidong He;Yiwu Mao;Xiao Lin

  • Effect of Phase Retardation on Defect‐Mode Lasing in Polymeric Cholesteric Liquid Crystals

    Myoung Hoon Song;Byoungchoo Park;Byoungchoo Park;Ki-Chul Shin;Takashi Ohta

  • Nonlinear optical properties of highly oriented polydiacetylene evaporated films

    T. Kanetake;K. Ishikawa;T. Hasegawa;T. Koda

  • How doping a cholesteric liquid crystal with polymeric dye improves an order parameter and makes possible low threshold lasing

    Fumito Araoka;Ki-Chul Shin;Yoichi Takanishi;Ken Ishikawa

  • (Tetrathiafulvalene)(tetracyanoquinodimethane) as a low-contact-resistance electrode for organic transistors

    Koji Shibata;Hiroshi Wada;Ken Ishikawa;Hideo Takezoe

  • Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure

    Myoung Hoon Song;Na Young Ha;Kazuhiro Amemiya;Byoungchoo Park

  • Orientation of alkyl chains and hindered rotation of carbonyl groups in the smectic-C * phase of antiferroelectric liquid crystals studied by polarized Fourier transform infrared spectroscopy

    Kyeong Hyeon Kim;Ken Ishikawa;Hideo Takezoe;Atsuo Fukuda

  • Enhanced Optical Activity by Achiral Rod-Like Molecules Nanosegregated in the B4 Structure of Achiral Bent-Core Molecules

    Taketo Otani;Fumito Araoka;Ken Ishikawa;Hideo Takezoe

  • A racemic layer structure in a chiral bent-core ferroelectric liquid crystal

    M. Nakata;D. R. Link;F. Araoka;J. Thisayukta

  • Electric-field-induced polar biaxial order in a nontilted smectic phase of an asymmetric bent-core liquid crystal.

    Yoshio Shimbo;Ewa Gorecka;Damian Pociecha;Fumito Araoka

  • IR and ram-an studies in three polyanilines with different oxidation levels

    T. Fukuda;T. Nishioka;K. Suruga;S. Nakao

  • Spontaneous polarization parallel to the tilt plane in the antiferroelectric chiral smectic- C A phase of liquid crystals as observed by polarized infrared spectroscopy

    Kouichi Miyachi;Jin Matsushima;Yoichi Takanishi;Ken Ishikawa

  • Polyquinoxaline as an excellent electron injecting material for electroluminescent device

    Takashi Fukuda;Takaki Kanbara;Takakazu Yamamoto;Ken Ishikawa

  • Anomalously hindered E2 strength B(E2;2+(1)-->0+) in 16C.

    N Imai;H J Ong;N Aoi;H Sakurai

  • Circular‐Polarization‐Induced Enantiomeric Excess in Liquid Crystals of an Achiral, Bent‐Shaped Mesogen

    Suk-Won Choi;Tatsuya Izumi;Yusuke Hoshino;Yoichi Takanishi

  • Contact resistance of dibenzotetrathiafulvalene-based organic transistors with metal and organic electrodes

    Koji Shibata;Ken Ishikawa;Hideo Takezoe;Hiroshi Wada

Frequent Co-Authors

Hideo Takezoe
Hideo Takezoe Tokyo Institute of Technology
Yoichi Takanishi
Yoichi Takanishi Kyoto University
Atsuo Fukuda
Atsuo Fukuda Trinity College Dublin
Junji Watanabe
Junji Watanabe Tokyo Institute of Technology
Takashi Kubo
Takashi Kubo Osaka University
Takehiko Mori
Takehiko Mori Tokyo Institute of Technology
Damian Pociecha
Damian Pociecha University of Warsaw
Ewa Gorecka
Ewa Gorecka University of Warsaw
Myoung Hoon Song
Myoung Hoon Song Ulsan National Institute of Science and Technology
Takaki Kanbara
Takaki Kanbara University of Tsukuba

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Best Scientists Citing Ken Ishikawa

Trending Scientists

Recently Published Articles