World's Best Scientists 2026 revealed!
Norio Tsubokawa

Norio Tsubokawa

D-Index & Metrics

Materials Science

D-Index
47
Citations
7444
World Ranking
11208
National Ranking
696

Chemistry

D-Index
47
Citations
7406
World Ranking
15702
National Ranking
1234

Norio Tsubokawa 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 Norio Tsubokawa 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: 318 publications — 64th percentile

64% of scientists in this discipline score the same or lower.

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

Norio Tsubokawa 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 Norio Tsubokawa 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: 47 D-Index — 15th percentile

15% of scientists in this discipline score the same or lower.

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

Overview

Norio Tsubokawa is affiliated with Niigata University in Japan. Their academic profile does not include publicly recorded recent papers, frequent co-authors, or specific publication venues. Norio Tsubokawa's documented research output and collaborations appear to be limited or not readily available through common academic indexing sources.

There is no detailed information regarding their main or subfields of study, nor specific research topics. The absence of these data suggests that detailed bibliometric or topical analyses are not currently accessible for this researcher.

No records are available concerning book publications credited to Norio Tsubokawa, indicating the scientist has not published monographs or edited volumes, or these works are not cataloged in the consulted sources.

There are also no documented awards or honors attributed to Norio Tsubokawa in the accessible data, and the scientist is not deceased, so the overview reflects their ongoing status in academia.

This profile reflects available factual data without extrapolation, presenting Norio Tsubokawa as an academic associated with Niigata University in Japan with limited publicly available bibliographic records or research impact metrics at this time.

Best Publications

  • Grafting of ‘dendrimer-like’ highly branched polymer onto ultrafine silica surface

    Norio Tsubokawa;Hajime Ichioka;Toshiya Satoh;Shinji Hayashi

  • Graft polymerization of vinyl monomers from inorganic ultrafine particles initiated by azo groups introduced onto the surface.

    Norio Tsubokawa;Akira Kogure;Kazue Maruyama;Yasuo Sone

  • Preparation and Properties of Polymer-grafted Carbon Nanotubes and Nanofibers

    Norio Tsubokawa

  • Radical grafting from carbon black graft polymerization of vinyl monomers initiated by peroxyester groups introduced onto carbon black surface

    Norio Tsubokawa;Kazuhiro Fujiki;Yasuo Sone

  • Surface modification of chitosan powder by grafting of ‘dendrimer-like’ hyperbranched polymer onto the surface

    Norio Tsubokawa;Takeshi Takayama

  • Preparation and properties of biocompatible polymer-grafted silica nanoparticle

    Ruriko Yokoyama;Seiko Suzuki;Kumi Shirai;Takeshi Yamauchi

  • Radiation grafting of styrene into crosslinked PTEE films and subsequent sulfonation for fuel cell applications

    Tetsuya Yamaki;Masaharu Asano;Yasunari Maekawa;Yosuke Morita

  • Graft Polymerization of Acrylamide from Ultrafine Silica Particles by Use of a Redox System Consisting of Ceric Ion and Reducing Groups on the Surface

    Norio Tsubokawa;Kazue Maruyama;Yasuo Sone;Masato Shimomura

  • Novel gas sensor from polymer-grafted carbon black: Vapor response of electric resistance of conducting composites prepared from poly(ethylene-block-ethylene oxide)-grafted carbon black

    Jinhua Chen;Norio Tsubokawa

  • Functionalization of Carbon Material by Surface Grafting of Polymers

    Norio Tsubokawa

  • Surface Grafting of Polymers onto Nanoparticles in a Solvent-Free Dry-System and Applications of Polymer-grafted Nanoparticles as Novel Functional Hybrid Materials

    Norio Tsubokawa

  • Curing of epoxy resin by ultrafine silica modified by grafting of hyperbranched polyamidoamine using dendrimer synthesis methodology

    Masaki Okazaki;Masamichi Murota;Yuri Kawaguchi;Norio Tsubokawa

  • Graft polymerization of vinyl monomers by peroxyester groups introduced onto the surface of inorganic ultrafine particles

    Norio Tsubokawa;Hisanori Ishida

  • Grafting of hyperbranched polymers onto ultrafine silica: postgraft polymerization of vinyl monomers initiated by pendant initiating groups of polymer chains grafted onto the surface

    Shinji Hayashi;Kazuhiro Fujiki;Norio Tsubokawa

  • A novel gas sensor from polymer‐grafted carbon black: responsiveness of electric resistance of conducting composite from LDPE and PE‐b‐PEO‐grafted carbon black in various vapors

    Jinhua Chen;Norio Tsubokawa

  • Grafting of polyesters from ultrafine inorganic particles: Copolymerization of epoxides with cyclic acid anhydrides initiated by COOK groups introduced onto the surface

    Norio Tsubokawa;Akira Kogure;Yasuo Sone

  • The free radical polymerization of vinyl monomers in the presence of carbon black

    K. Ohkita;N. Tsubokawa;E. Saitoh;M. Noda

  • Graft polymerization of vinyl monomers initiated by peroxycarbonate groups introduced onto silica surface by Michael addition

    Shinji Hayashi;Yoshihiro Takeuchi;Masumi Eguchi;Takamitsu Iida

  • Grafting of hyperbranched poly(amidoamine) onto carbon black surfaces using dendrimer synthesis methodology

    Norio Tsubokawa;Toshiya Satoh;Masamichi Murota;Shimpei Sato

  • Grafting of Polymers onto a Carbon Black Surface by the Trapping of Polymer Radicals

    Shinji Hayashi;Atsushi Naitoh;Seiichi Machida;Masaki Okazaki

  • Radical Grafting from Carbon Black. Graft Polymerization of Vinyl Monomers Initiated by Peroxyester Groups Introduced onto Carbon Black Surface

    Unknown

Frequent Co-Authors

Takeshi Endo
Takeshi Endo Kyushu Institute of Technology
Tetsuo Sakka
Tetsuo Sakka Kyoto University
Yukio H. Ogata
Yukio H. Ogata Kyoto University
Susumu Kuwabata
Susumu Kuwabata Osaka University
Atsushi Ochiai
Atsushi Ochiai University of Tokyo

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