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Norio Tsubokawa

Norio Tsubokawa

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Materials Science 47 11208 10827 696 661 318 7444
Chemistry 47 15702 14164 1234 1120 318 7406

Norio Tsubokawa publications per year

The chart shows the history of publications by Norio Tsubokawa between 1972 and 2020, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Norio Tsubokawa published across 49 years, from 1972 to 2020, averaging 6.6 papers a year. Output peaked at 17 publications in 1993. 2 of the 325 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1972 to 2020. Vertical axis: number of publications, 0 to 17. Peak 17 publications in 1993. 1972: 1 publication 1973: 0 publications 1974: 0 publications 1975: 1 publication 1976: 2 publications 1977: 1 publication 1978: 1 publication 1979: 1 publication 1980: 5 publications 1981: 1 publication 1982: 6 publications 1983: 7 publications 1984: 3 publications 1985: 6 publications 1986: 10 publications 1987: 11 publications 1988: 12 publications 1989: 10 publications 1990: 6 publications 1991: 11 publications 1992: 7 publications 1993: 17 publications 1994: 12 publications 1995: 11 publications 1996: 8 publications 1997: 9 publications 1998: 12 publications 1999: 11 publications 2000: 12 publications 2001: 11 publications 2002: 11 publications 2003: 5 publications 2004: 5 publications 2005: 13 publications 2006: 9 publications 2007: 7 publications 2008: 8 publications 2009: 16 publications 2010: 6 publications 2011: 4 publications 2012: 6 publications 2013: 7 publications 2014: 4 publications 2015: 6 publications 2016: 8 publications 2017: 1 publication 2018: 2 publications 2019: 1 publication 2020: 1 publication
1972 2020

325 publications in total across all disciplines

View publications per year as a table
Norio Tsubokawa: publications per year, 1972 to 2020
Year Publications
1972 1
1973 0
1974 0
1975 1
1976 2
1977 1
1978 1
1979 1
1980 5
1981 1
1982 6
1983 7
1984 3
1985 6
1986 10
1987 11
1988 12
1989 10
1990 6
1991 11
1992 7
1993 17
1994 12
1995 11
1996 8
1997 9
1998 12
1999 11
2000 12
2001 11
2002 11
2003 5
2004 5
2005 13
2006 9
2007 7
2008 8
2009 16
2010 6
2011 4
2012 6
2013 7
2014 4
2015 6
2016 8
2017 1
2018 2
2019 1
2020 1
Total 325
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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.

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, 310–329 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: 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.

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
310–329 537 318
330–349 477
350–369 440
370–389 356
390–409 321
410–429 256
430–449 246
450–469 216
470–489 212
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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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.

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, 46–47 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: 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.

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 47
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
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

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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