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Chemistry
Japan
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Materials Science 93 1431 1373 53 52 592 38514
Chemistry 92 1848 1646 98 93 561 37844

Ryoji Kanno publications per year

The chart shows the history of publications by Ryoji Kanno between 1980 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ryoji Kanno published across 46 years, from 1980 to 2025, averaging 14.6 papers a year. Output peaked at 39 publications in 2016. 42 of the 671 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1980 to 2025. Vertical axis: number of publications, 0 to 39. Peak 39 publications in 2016. 1980: 1 publication 1981: 5 publications 1982: 2 publications 1983: 3 publications 1984: 3 publications 1985: 5 publications 1986: 7 publications 1987: 20 publications 1988: 9 publications 1989: 7 publications 1990: 5 publications 1991: 9 publications 1992: 9 publications 1993: 5 publications 1994: 10 publications 1995: 10 publications 1996: 14 publications 1997: 22 publications 1998: 17 publications 1999: 15 publications 2000: 9 publications 2001: 11 publications 2002: 20 publications 2003: 11 publications 2004: 16 publications 2005: 8 publications 2006: 17 publications 2007: 11 publications 2008: 26 publications 2009: 24 publications 2010: 18 publications 2011: 10 publications 2012: 28 publications 2013: 19 publications 2014: 20 publications 2015: 22 publications 2016: 39 publications 2017: 15 publications 2018: 17 publications 2019: 17 publications 2020: 26 publications 2021: 19 publications 2022: 17 publications 2023: 31 publications 2024: 19 publications 2025: 23 publications
1980 2025

671 publications in total across all disciplines

View publications per year as a table
Ryoji Kanno: publications per year, 1980 to 2025
Year Publications
1980 1
1981 5
1982 2
1983 3
1984 3
1985 5
1986 7
1987 20
1988 9
1989 7
1990 5
1991 9
1992 9
1993 5
1994 10
1995 10
1996 14
1997 22
1998 17
1999 15
2000 9
2001 11
2002 20
2003 11
2004 16
2005 8
2006 17
2007 11
2008 26
2009 24
2010 18
2011 10
2012 28
2013 19
2014 20
2015 22
2016 39
2017 15
2018 17
2019 17
2020 26
2021 19
2022 17
2023 31
2024 19
2025 23
Total 671
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Ryoji Kanno 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 Ryoji Kanno 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, 590–609 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: 592 publications — 92nd percentile

92% 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
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
590–609 103 592
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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Ryoji Kanno 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 Ryoji Kanno 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, 92–93 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: 93 D-Index — 89th percentile

89% 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
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 93
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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Research.com Recognitions

  • 2026 - Research.com Chemistry in Japan Leader Award
  • 2025 - Research.com Chemistry in Japan Leader Award
  • 2022 - Research.com Chemistry in Japan Leader Award

Overview

Ryoji Kanno is affiliated with the Tokyo Institute of Technology in Japan and has contributed extensively to the fields of engineering and materials science. Their research emphasizes advanced battery materials and technologies, with a notable focus on electrical and electronic engineering as well as materials chemistry.

Their research work spans several specialized areas, including:

  • Advanced Battery Materials and Technologies
  • Advancements in Battery Materials
  • Advanced Battery Technologies Research
  • Thermal Expansion and Ionic Conductivity
  • Inorganic Chemistry and Materials
  • Crystallization and Solubility Studies
  • Hydrogen Storage and Materials

Ryoji Kanno has published in frequent venues such as:

  • ECS Meeting Abstracts
  • Electrochemistry
  • The Cambridge Structural Database
  • Journal of Materials Chemistry A
  • Batteries & Supercaps

Recent papers authored or coauthored by Kanno include:

  • "A lithium superionic conductor for millimeter-thick battery electrode," 2023, Science
  • "Li10GeP2S12-Type Superionic Conductors: Synthesis, Structure, and Ionic Transportation," 2020, Advanced Energy Materials
  • "A mechanistic investigation of the Li10GeP2S12|LiNi1-x-yCoxMnyO2 interface stability in all-solid-state lithium batteries," 2021, Nature Communications
  • "Hydride-ion-conducting K2NiF4-type Ba-Li oxyhydride solid electrolyte," 2022, Nature Materials
  • "Understanding the impedance spectra of all-solid-state lithium battery cells with sulfide superionic conductors," 2022, Journal of Power Sources

The scientist frequently collaborates with others in their field, with frequent coauthors being:

  • Kota Suzuki
  • Masaaki Hirayama
  • Satoshi Hori
  • Naoki Matsui
  • K. Watanabe

Ryoji Kanno's publication record includes over two hundred works in the broader engineering field and nearly eighty in materials science. Among subfields, the focus is predominantly on electrical and electronic engineering, materials chemistry, automotive engineering, inorganic chemistry, and electronic, optical and magnetic materials.

Best Publications

  • A lithium superionic conductor

    Noriaki Kamaya;Kenji Homma;Yuichiro Yamakawa;Masaaki Hirayama

  • High-power all-solid-state batteries using sulfide superionic conductors

    Yuki Kato;Yuki Kato;Satoshi Hori;Toshiya Saito;Kota Suzuki

  • Lithium Ionic Conductor Thio-LISICON: The Li2 S ­ GeS2 ­ P 2 S 5 System

    Ryoji Kanno;Masahiro Murayama

  • Experimental visualization of lithium diffusion in LixFePO4.

    Shin Ichi Nishimura;Genki Kobayashi;Kenji Ohoyama;Ryoji Kanno

  • Perovskite-type oxides as oxygen electrodes for high temperature oxide fuel cells

    O. Yamamoto;Y. Takeda;R. Kanno;M. Noda

  • Cathodic Polarization Phenomena of Perovskite Oxide Electrodes with Stabilized Zirconia

    Y. Takeda;R. Kanno;M. Noda;Y. Tomida

  • Room-temperature miscibility gap in LixFePO4.

    Atsuo Yamada;Hiroshi Koizumi;Shin-ichi Nishimura;Noriyuki Sonoyama

  • Synthesis of a new lithium ionic conductor, thio-LISICON–lithium germanium sulfide system

    Ryoji Kanno;Takayuki Hata;Yoji Kawamoto;Michihiko Irie

  • Comparative Kinetic Study of Olivine Li x MPO 4 ( M = Fe , Mn)

    Masao Yonemura;Atsuo Yamada;Yuki Takei;Noriyuki Sonoyama

  • A lithium superionic conductor for millimeter-thick battery electrode

    Unknown

  • Crystal structure and phase transitions of the lithium ionic conductor Li3PS4

    Kenji Homma;Masao Yonemura;Takeshi Kobayashi;Miki Nagao

  • Dynamic structural changes at LiMn2O4/electrolyte interface during lithium battery reaction.

    Masaaki Hirayama;Hedekazu Ido;KyungSu Kim;Woosuk Cho

  • A Truncated Manganese Spinel Cathode for Excellent Power and Lifetime in Lithium-Ion Batteries

    Joo-Seong Kim;KyungSu Kim;Woosuk Cho;Weon Ho Shin

  • Isolation of Solid Solution Phases in Size‐Controlled LixFePO4 at Room Temperature

    Genki Kobayashi;Shin-ichi Nishimura;Min-Sik Park;Ryoji Kanno

  • Structure of Li2FeSiO4

    Shin-ichi Nishimura;Shogo Hayase;Ryoji Kanno;Masatomo Yashima

  • Chemical and Magnetic Characterization of Spinel Materials in the LiMn2O4–Li2Mn4O9–Li4Mn5O12System

    Christian Masquelier;Mitsuharu Tabuchi;Kazuaki Ado;Ryoji Kanno

  • Synthesis of new lithium ionic conductor thio-LISICON-lithium silicon sulfides system

    Masahiro Murayama;Masahiro Murayama;Ryoji Kanno;Michihiko Irie;Shinya Ito

  • Phase Relationship and Lithium Deintercalation in Lithium Nickel Oxides

    R. Kanno;H. Kubo;Y. Kawamoto;T. Kamiyama

  • Relationship between non-stoichiometry and physical properties in LiNiO2

    A. Hirano;R. Kanno;Y. Kawamoto;Y. Takeda

  • Phase Change in Li x FePO4

    Atsuo Yamada;Hiroshi Koizumi;Noriyuki Sonoyama;Ryoji Kanno

  • Rechargeable lithium batteries and beyond: Progress, challenges, and future directions

    Khalil Amine;Ryoji Kanno;Yonhua Tzeng

Frequent Co-Authors

Masaaki Hirayama
Masaaki Hirayama Tokyo Institute of Technology
Atsuo Yamada
Atsuo Yamada University of Tokyo
Mikio Takano
Mikio Takano Kyoto University
Yasuo Takeda
Yasuo Takeda Mie University
Mitsuharu Tabuchi
Mitsuharu Tabuchi National Institute of Advanced Industrial Science and Technology
Osamu Yamamoto
Osamu Yamamoto Mie University
Atsushi Hirano
Atsushi Hirano National Institute of Advanced Industrial Science and Technology
Hiroyuki Kageyama
Hiroyuki Kageyama National Institute of Advanced Industrial Science and Technology
Takashi Kamiyama
Takashi Kamiyama High Energy Accelerator Research Organization
Nobuyuki Imanishi
Nobuyuki Imanishi Mie University

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