World's Best Scientists 2026 revealed!
Kenichi Oyaizu

Kenichi Oyaizu

D-Index & Metrics

Chemistry

D-Index
52
Citations
12342
World Ranking
13393
National Ranking
1020

Kenichi Oyaizu 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 Kenichi Oyaizu 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: 345 publications — 72nd percentile

72% of scientists in this discipline score the same or lower.

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

Kenichi Oyaizu 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 Kenichi Oyaizu 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: 52 D-Index — 26th percentile

26% of scientists in this discipline score the same or lower.

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

Overview

Kenichi Oyaizu is affiliated with Waseda University in Japan and has conducted extensive research primarily in the fields of Materials Science and Engineering. Their work encompasses multiple subfields, including Electrical and Electronic Engineering, Materials Chemistry, Polymers and Plastics, Organic Chemistry, and Electronic, Optical and Magnetic Materials.

Their research focuses on several key topics, notably:

  • Conducting polymers and applications
  • Advanced battery technologies research
  • Synthesis and properties of polymers
  • Advanced Battery Materials and Technologies
  • Silicone and Siloxane Chemistry
  • Machine Learning in Materials Science
  • Advancements in Battery Materials

Oyaizu has contributed to a variety of academic journals, with frequent publications in venues such as:

  • ACS Applied Polymer Materials
  • ChemSusChem
  • Bulletin of the Chemical Society of Japan
  • Macromolecules
  • RSC Advances

The scientist's recent papers illustrate a focus on redox-active polymers, energy storage, and organic electronics. Selected publications include:

  • "Nitroxide radical polymers for emerging plastic energy storage and organic electronics: fundamentals, materials, and applications" (2020) published in Materials Horizons
  • "AI-Assisted Exploration of Superionic Glass-Type Li+ Conductors with Aromatic Structures" (2020) published in Journal of the American Chemical Society
  • "Redox: Organic Robust Radicals and Their Polymers for Energy Conversion/Storage Devices" (2023) published in Chemical Reviews
  • "Reversible Reduction of the TEMPO Radical: One Step Closer to an All-Organic Redox Flow Battery" (2020) published in ACS Sustainable Chemistry & Engineering
  • "Rechargeable proton exchange membrane fuel cell containing an intrinsic hydrogen storage polymer" (2020) published in Communications Chemistry

Frequent collaborators include several researchers with whom Oyaizu has co-authored multiple studies. These co-authors are Kan Hatakeyama-Sato, Seigo Watanabe, Kouki Oka, Hiroyuki Nishide, and Yusuke Kaiwa.

Best Publications

  • Toward Flexible Batteries

    Hiroyuki Nishide;Kenichi Oyaizu

  • Radical Polymers for Organic Electronic Devices: A Radical Departure from Conjugated Polymers?

    Kenichi Oyaizu;Hiroyuki Nishide

  • Emerging N-Type Redox-Active Radical Polymer for a Totally Organic Polymer-Based Rechargeable Battery

    Takeo Suga;Hiroki Ohshiro;Shuhei Sugita;Kenichi Oyaizu

  • Organic Radical Battery Approaching Practical Use

    Kentaro Nakahara;Kenichi Oyaizu;Hiroyuki Nishide

  • Modifying carbon particles with polypyrrole for adsorption of cobalt ions as electrocatatytic site for oxygen reduction

    Makoto Yuasa;Aritomo Yamaguchi;Hisayuki Itsuki;Ken Tanaka

  • p‐ and n‐Type Bipolar Redox‐Active Radical Polymer: Toward Totally Organic Polymer‐Based Rechargeable Devices with Variable Configuration

    Takeo Suga;Shuhei Sugita;Hiroki Ohshiro;Kenichi Oyaizu

  • Aqueous electrochemistry of poly(vinylanthraquinone) for anode-active materials in high-density and rechargeable polymer/air batteries.

    Wonsung Choi;Daisuke Harada;Kenichi Oyaizu;Hiroyuki Nishide

  • Nernstian adsorbate-like bulk layer of organic radical polymers for high-density charge storage purposes

    Kenichi Oyaizu;Yuko Ando;Hiroaki Konishi;Hiroyuki Nishide

  • Synthesis and properties of novel sulfonated arylene ether/fluorinated alkane copolymers

    Kenji Miyatake;Kenichi Oyaizu;Eishun Tsuchida;Allan S. Hay

  • Electron-Transfer Kinetics of Nitroxide Radicals as an Electrode-Active Material

    Takeo Suga;Yong Jin Pu;Kenichi Oyaizu;Hiroyuki Nishide

  • Battery-Inspired, Nonvolatile, and Rewritable Memory Architecture: a Radical Polymer-Based Organic Device

    Yasunori Yonekuta;Kentaro Susuki;Kenichi Oyaizu;Kenji Honda

  • An ultrafast chargeable polymer electrode based on the combination of nitroxide radical and aqueous electrolyte.

    Kenichiroh Koshika;Naoki Sano;Kenichi Oyaizu;Hiroyuki Nishide

  • A TEMPO-substituted polyacrylamide as a new cathode material: an organic rechargeable device composed of polymer electrodes and aqueous electrolyte

    Kenichiroh Koshika;Natsuru Chikushi;Naoki Sano;Kenichi Oyaizu

  • An Aqueous, Electrolyte-Type, Rechargeable Device Utilizing a Hydrophilic Radical Polymer-Cathode

    Kenichiroh Koshika;Naoki Sano;Kenichi Oyaizu;Hiroyuki Nishide

  • Synthesis and Characterization of Radical-Bearing Polyethers as an Electrode-Active Material for Organic Secondary Batteries

    Kenichi Oyaizu;Takeo Suga;Kentaro Yoshimura;Hiroyuki Nishide

  • Diffusion-Cooperative Model for Charge Transport by Redox-Active Nonconjugated Polymers

    Kan Sato;Rieka Ichinoi;Ryusuke Mizukami;Takuma Serikawa

  • Radical polymer-wrapped SWNTs at a molecular level: high-rate redox mediation through a percolation network for a transparent charge-storage material.

    Wonsung Choi;Shota Ohtani;Kenichi Oyaizu;Hiroyuki Nishide;Hiroyuki Nishide

  • Synthesis and charge transport properties of redox-active nitroxide polyethers with large site density

    Kenichi Oyaizu;Takeshi Kawamoto;Takeo Suga;Hiroyuki Nishide

  • Linear Ladder-Type π-Conjugated Polymers Composed of Fused Thiophene Ring Systems

    Kenichi Oyaizu;Tomokazu Iwasaki;Yoshiaki Tsukahara;Eishun Tsuchida

  • Polyviologen Hydrogel with High-Rate Capability for Anodes toward an Aqueous Electrolyte-Type and Organic-Based Rechargeable Device

    Naoki Sano;Wataru Tomita;Shu Hara;Cheong Min Min

Frequent Co-Authors

Hiroyuki Nishide
Hiroyuki Nishide Waseda University
Eishun Tsuchida
Eishun Tsuchida Waseda University
Kimihisa Yamamoto
Kimihisa Yamamoto Tokyo Institute of Technology
Xiuli Zhuang
Xiuli Zhuang Chinese Academy of Sciences
Xuesi Chen
Xuesi Chen Chinese Academy of Sciences
Hiroshi Segawa
Hiroshi Segawa University of Tokyo
Kenji Miyatake
Kenji Miyatake University of Yamanashi
Maria Strømme
Maria Strømme Uppsala University
Wai-Yeung Wong
Wai-Yeung Wong Hong Kong Polytechnic University
Ekaterina I. Izgorodina
Ekaterina I. Izgorodina Monash University

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