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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Materials Science 65 5493 5311 263 257 369 29338

Kenji Hata publications per year

The chart shows the history of publications by Kenji Hata between 1982 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kenji Hata published across 44 years, from 1982 to 2025, averaging 9 papers a year. Output peaked at 31 publications in 2009. 4 of the 394 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1982 to 2025. Vertical axis: number of publications, 0 to 31. Peak 31 publications in 2009. 1982: 2 publications 1983: 1 publication 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 0 publications 1992: 0 publications 1993: 1 publication 1994: 1 publication 1995: 0 publications 1996: 5 publications 1997: 7 publications 1998: 6 publications 1999: 10 publications 2000: 5 publications 2001: 5 publications 2002: 3 publications 2003: 0 publications 2004: 2 publications 2005: 10 publications 2006: 12 publications 2007: 12 publications 2008: 24 publications 2009: 31 publications 2010: 27 publications 2011: 22 publications 2012: 28 publications 2013: 28 publications 2014: 16 publications 2015: 28 publications 2016: 16 publications 2017: 24 publications 2018: 17 publications 2019: 12 publications 2020: 10 publications 2021: 16 publications 2022: 4 publications 2023: 5 publications 2024: 2 publications 2025: 2 publications
1982 2025

394 publications in total across all disciplines

View publications per year as a table
Kenji Hata: publications per year, 1982 to 2025
Year Publications
1982 2
1983 1
1984 0
1985 0
1986 0
1987 0
1988 0
1989 0
1990 0
1991 0
1992 0
1993 1
1994 1
1995 0
1996 5
1997 7
1998 6
1999 10
2000 5
2001 5
2002 3
2003 0
2004 2
2005 10
2006 12
2007 12
2008 24
2009 31
2010 27
2011 22
2012 28
2013 28
2014 16
2015 28
2016 16
2017 24
2018 17
2019 12
2020 10
2021 16
2022 4
2023 5
2024 2
2025 2
Total 394
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Kenji Hata 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 Kenji Hata 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, 350–369 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: 369 publications — 73rd percentile

73% 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
330–349 477
350–369 440 369
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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Kenji Hata 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 Kenji Hata 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, 64–65 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: 65 D-Index — 57th percentile

57% 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
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 65
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

Kenji Hata is affiliated with the National Institute of Advanced Industrial Science and Technology in Japan. The primary areas of research include Materials Science and Engineering, with a focus on several subfields such as Materials Chemistry, Biomedical Engineering, Electrical and Electronic Engineering, Mechanical Engineering, and Organic Chemistry.

The scientist's work spans numerous topics, notably in carbon nanotubes and related nano-materials. Main research themes cover:

  • Carbon Nanotubes in Composites
  • Graphene research and applications
  • Nanotechnology research and applications
  • Thermal properties of materials
  • Fullerene Chemistry and Applications
  • Supercapacitor Materials and Fabrication
  • Advanced Sensor and Energy Harvesting Materials

Frequent collaborators in Hata's research include:

  • Don N. Futaba
  • Takeo Yamada
  • Guohai Chen
  • Kazufumi Kobashi
  • Shunsuke Sakurai

Some key publication venues where Hata's work has appeared regularly are:

  • ACS Nano
  • Nanomaterials
  • Carbon Trends
  • Journal of Cleaner Production
  • Journal of Materials Research and Technology

Notable recent papers authored or coauthored by Kenji Hata include:

  • Development of life cycle assessment of an emerging technology at research and development stage: A case study on single-wall carbon nanotube produced by super growth method, 2020, Journal of Cleaner Production
  • Thermal expansion of Cu/carbon nanotube composite wires and the effect of Cu-spatial distribution, 2020, Journal of Materials Research and Technology
  • Through-Silicon-Via Interposers with Cu-Level Electrical Conductivity and Si-Level Thermal Expansion Based on Carbon Nanotube-Cu Composites for Microelectronic Packaging Applications, 2020, ACS Applied Nano Materials
  • Supercapacitor Electrodes of Blended Carbon Nanotubes with Diverse Conductive Porous Structures Enabling High Charge/Discharge Rates, 2021, ACS Applied Energy Materials
  • Radical scavenging activity of carbon nanotubes: toward appropriate selection of a radical initiator, 2020, RSC Advances

Best Publications

  • A stretchable carbon nanotube strain sensor for human-motion detection

    Takeo Yamada;Yuhei Hayamizu;Yuki Yamamoto;Yoshiki Yomogida

  • Water-Assisted Highly Efficient Synthesis of Impurity-Free Single-Walled Carbon Nanotubes

    Kenji Hata;Don N. Futaba;Kohei Mizuno;Tatsunori Namai

  • Shape-engineerable and highly densely packed single-walled carbon nanotubes and their application as super-capacitor electrodes

    Don N. Futaba;Kenji Hata;Takeo Yamada;Tatsuki Hiraoka

  • Stretchable active-matrix organic light-emitting diode display using printable elastic conductors

    Tsuyoshi Sekitani;Hiroyoshi Nakajima;Hiroki Maeda;Takanori Fukushima

  • A Rubberlike Stretchable Active Matrix Using Elastic Conductors

    Tsuyoshi Sekitani;Yoshiaki Noguchi;Kenji Hata;Takanori Fukushima

  • A black body absorber from vertically aligned single-walled carbon nanotubes

    Kohei Mizuno;Juntaro Ishii;Hideo Kishida;Yuhei Hayamizu

  • Extracting the full potential of single-walled carbon nanotubes as durable supercapacitor electrodes operable at 4 V with high power and energy density.

    Ali Izadi-Najafabadi;Satoshi Yasuda;Kazufumi Kobashi;Takeo Yamada

  • One hundred fold increase in current carrying capacity in a carbon nanotube–copper composite

    Chandramouli Subramaniam;Takeo Yamada;Kazufumi Kobashi;Atsuko Sekiguchi

  • Size-selective growth of double-walled carbon nanotube forests from engineered iron catalysts.

    Takeo Yamada;Tatsunori Namai;Kenji Hata;Don N. Futaba

  • Kinetics of water-assisted single-walled carbon nanotube synthesis revealed by a time-evolution analysis.

    Don N. Futaba;Kenji Hata;Takeo Yamada;Kohei Mizuno

  • Systematic conversion of single walled carbon nanotubes into n-type thermoelectric materials by molecular dopants.

    Yoshiyuki Nonoguchi;Kenji Ohashi;Rui Kanazawa;Koji Ashiba

  • Carbon Nanotubes with Temperature-Invariant Viscoelasticity from –196° to 1000°C

    Ming Xu;Don N. Futaba;Takeo Yamada;Motoo Yumura

  • Integrated three-dimensional microelectromechanical devices from processable carbon nanotube wafers

    Yuhei Hayamizu;Takeo Yamada;Kohei Mizuno;Robert C Davis

  • 84% catalyst activity of water-assisted growth of single walled carbon nanotube forest characterization by a statistical and macroscopic approach.

    Don N Futaba;Kenji Hata;Tatsunori Namai;Takeo Yamada

  • High-Power Supercapacitor Electrodes from Single-Walled Carbon Nanohorn/Nanotube Composite

    Ali Izadi-Najafabadi;Takeo Yamada;Don. N. Futaba;Masako Yudasaka

  • Elastomeric Thermal Interface Materials with High Through‐Plane Thermal Conductivity from Carbon Fiber Fillers Vertically Aligned by Electrostatic Flocking

    Kojiro Uetani;Seisuke Ata;Shigeki Tomonoh;Takeo Yamada

  • ALIGNED SINGLE-WALLED CARBON NANOTUBE BULK STRUCTURE AND ITS PRODUCTION METHOD

    Hata Kenji;Iijima Sumio;Yumura Morio;Futaba Don N

  • Highly Conductive Sheets from Millimeter-Long Single-Walled Carbon Nanotubes and Ionic Liquids: Application to Fast-Moving, Low-Voltage Electromechanical Actuators Operable in Air

    Ken Mukai;Kinji Asaka;Takushi Sugino;Kenji Kiyohara

  • Self-regulating enzyme-nanotube ensemble films and their application as flexible electrodes for biofuel cells

    Takeo Miyake;Syuhei Yoshino;Takeo Yamada;Kenji Hata

  • Nature of the constant factor in the relation between radial breathing mode frequency and tube diameter for single-wall carbon nanotubes

    Paulo T. Araujo;I. O. Maciel;P. B. C. Pesce;M. A. Pimenta

  • Revealing the secret of water-assisted carbon nanotube synthesis by microscopic observation of the interaction of water on the catalysts.

    Takeo Yamada;Alan Maigne;Masako Yudasaka;Kouhei Mizuno

Frequent Co-Authors

Don N. Futaba
Don N. Futaba National Institute of Advanced Industrial Science and Technology
Takeo Yamada
Takeo Yamada National Institute of Advanced Industrial Science and Technology
Motoo Yumura
Motoo Yumura National Institute of Advanced Industrial Science and Technology
Sumio Iijima
Sumio Iijima Meijo University
Hirofumi Kanoh
Hirofumi Kanoh Chiba University
Toshiya Okazaki
Toshiya Okazaki National Institute of Advanced Industrial Science and Technology
Katsumi Kaneko
Katsumi Kaneko Shinshu University
Kinji Asaka
Kinji Asaka National Institute of Advanced Industrial Science and Technology
Yasumitsu Miyata
Yasumitsu Miyata Tokyo Metropolitan University
Matsuhiko Nishizawa
Matsuhiko Nishizawa Tohoku University

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