World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 62 1719 1542 35 31 236 11613

Ken-ichi Funakoshi publications per year

The chart shows the history of publications by Ken-ichi Funakoshi between 1994 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ken-ichi Funakoshi published across 32 years, from 1994 to 2025, averaging 8.7 papers a year. Output peaked at 25 publications in 2005. 7 of the 279 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1994 to 2025. Vertical axis: number of publications, 0 to 25. Peak 25 publications in 2005. 1994: 1 publication 1995: 0 publications 1996: 0 publications 1997: 0 publications 1998: 4 publications 1999: 3 publications 2000: 8 publications 2001: 11 publications 2002: 10 publications 2003: 10 publications 2004: 24 publications 2005: 25 publications 2006: 10 publications 2007: 13 publications 2008: 16 publications 2009: 23 publications 2010: 14 publications 2011: 13 publications 2012: 12 publications 2013: 20 publications 2014: 10 publications 2015: 10 publications 2016: 5 publications 2017: 4 publications 2018: 7 publications 2019: 4 publications 2020: 5 publications 2021: 5 publications 2022: 2 publications 2023: 3 publications 2024: 4 publications 2025: 3 publications
1994 2025

279 publications in total across all disciplines

View publications per year as a table
Ken-ichi Funakoshi: publications per year, 1994 to 2025
Year Publications
1994 1
1995 0
1996 0
1997 0
1998 4
1999 3
2000 8
2001 11
2002 10
2003 10
2004 24
2005 25
2006 10
2007 13
2008 16
2009 23
2010 14
2011 13
2012 12
2013 20
2014 10
2015 10
2016 5
2017 4
2018 7
2019 4
2020 5
2021 5
2022 2
2023 3
2024 4
2025 3
Total 279
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Ken-ichi Funakoshi publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where Ken-ichi Funakoshi sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 58 bars. Horizontal axis: publications, 38–47 to 603+. Vertical axis: number of scientists, 0 to 557. Most scientists, 557, have 128–137 publications. The last bar groups every scientist with 603 publications or more. The highlighted bar, 228–237 publications, is where this scientist sits. 38–47 publications: 5 scientists 48–57 publications: 33 scientists 58–67 publications: 94 scientists 68–77 publications: 161 scientists 78–87 publications: 278 scientists 88–97 publications: 376 scientists 98–107 publications: 404 scientists 108–117 publications: 484 scientists 118–127 publications: 540 scientists 128–137 publications: 557 scientists 138–147 publications: 491 scientists 148–157 publications: 495 scientists 158–167 publications: 458 scientists 168–177 publications: 490 scientists 178–187 publications: 414 scientists 188–197 publications: 401 scientists 198–207 publications: 333 scientists 208–217 publications: 292 scientists 218–227 publications: 290 scientists 228–237 publications: 262 scientists 238–247 publications: 243 scientists 248–257 publications: 208 scientists 258–267 publications: 185 scientists 268–277 publications: 147 scientists 278–287 publications: 128 scientists 288–297 publications: 119 scientists 298–307 publications: 120 scientists 308–317 publications: 107 scientists 318–327 publications: 93 scientists 328–337 publications: 87 scientists 338–347 publications: 64 scientists 348–357 publications: 87 scientists 358–367 publications: 60 scientists 368–377 publications: 60 scientists 378–387 publications: 34 scientists 388–397 publications: 50 scientists 398–407 publications: 44 scientists 408–417 publications: 31 scientists 418–427 publications: 39 scientists 428–437 publications: 27 scientists 438–447 publications: 36 scientists 448–457 publications: 27 scientists 458–467 publications: 29 scientists 468–477 publications: 30 scientists 478–487 publications: 19 scientists 488–497 publications: 15 scientists 498–507 publications: 18 scientists 508–517 publications: 19 scientists 518–527 publications: 16 scientists 528–537 publications: 10 scientists 538–547 publications: 11 scientists 548–557 publications: 14 scientists 558–567 publications: 11 scientists 568–577 publications: 7 scientists 578–587 publications: 14 scientists 588–597 publications: 5 scientists 598–602 publications: 4 scientists 603+ publications: 100 scientists
38–47 publications 603+

This scientist: 236 publications — 74th percentile

74% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

View publications distribution as a table
Number of Earth Science scientists by publication count, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
Publications Scientists This scientist
38–47 5
48–57 33
58–67 94
68–77 161
78–87 278
88–97 376
98–107 404
108–117 484
118–127 540
128–137 557
138–147 491
148–157 495
158–167 458
168–177 490
178–187 414
188–197 401
198–207 333
208–217 292
218–227 290
228–237 262 236
238–247 243
248–257 208
258–267 185
268–277 147
278–287 128
288–297 119
298–307 120
308–317 107
318–327 93
328–337 87
338–347 64
348–357 87
358–367 60
368–377 60
378–387 34
388–397 50
398–407 44
408–417 31
418–427 39
428–437 27
438–447 36
448–457 27
458–467 29
468–477 30
478–487 19
488–497 15
498–507 18
508–517 19
518–527 16
528–537 10
538–547 11
548–557 14
558–567 11
568–577 7
578–587 14
588–597 5
598–602 4
603+ 100
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Ken-ichi Funakoshi D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where Ken-ichi Funakoshi sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 77 bars. Horizontal axis: D-Index, 30 to 106+. Vertical axis: number of scientists, 0 to 389. Most scientists, 389, have 36 D-Index. The last bar groups every scientist with 106 D-Index or more. The highlighted bar, 62 D-Index, is where this scientist sits. 30 D-Index: 144 scientists 31 D-Index: 215 scientists 32 D-Index: 278 scientists 33 D-Index: 379 scientists 34 D-Index: 366 scientists 35 D-Index: 372 scientists 36 D-Index: 389 scientists 37 D-Index: 366 scientists 38 D-Index: 344 scientists 39 D-Index: 349 scientists 40 D-Index: 296 scientists 41 D-Index: 289 scientists 42 D-Index: 277 scientists 43 D-Index: 279 scientists 44 D-Index: 248 scientists 45 D-Index: 257 scientists 46 D-Index: 212 scientists 47 D-Index: 202 scientists 48 D-Index: 207 scientists 49 D-Index: 204 scientists 50 D-Index: 183 scientists 51 D-Index: 178 scientists 52 D-Index: 182 scientists 53 D-Index: 178 scientists 54 D-Index: 163 scientists 55 D-Index: 117 scientists 56 D-Index: 163 scientists 57 D-Index: 120 scientists 58 D-Index: 113 scientists 59 D-Index: 136 scientists 60 D-Index: 135 scientists 61 D-Index: 96 scientists 62 D-Index: 103 scientists 63 D-Index: 83 scientists 64 D-Index: 103 scientists 65 D-Index: 83 scientists 66 D-Index: 89 scientists 67 D-Index: 92 scientists 68 D-Index: 89 scientists 69 D-Index: 78 scientists 70 D-Index: 75 scientists 71 D-Index: 53 scientists 72 D-Index: 62 scientists 73 D-Index: 54 scientists 74 D-Index: 35 scientists 75 D-Index: 52 scientists 76 D-Index: 50 scientists 77 D-Index: 32 scientists 78 D-Index: 37 scientists 79 D-Index: 20 scientists 80 D-Index: 33 scientists 81 D-Index: 36 scientists 82 D-Index: 34 scientists 83 D-Index: 34 scientists 84 D-Index: 24 scientists 85 D-Index: 19 scientists 86 D-Index: 18 scientists 87 D-Index: 26 scientists 88 D-Index: 30 scientists 89 D-Index: 17 scientists 90 D-Index: 21 scientists 91 D-Index: 19 scientists 92 D-Index: 15 scientists 93 D-Index: 14 scientists 94 D-Index: 20 scientists 95 D-Index: 9 scientists 96 D-Index: 10 scientists 97 D-Index: 15 scientists 98 D-Index: 13 scientists 99 D-Index: 3 scientists 100 D-Index: 13 scientists 101 D-Index: 3 scientists 102 D-Index: 9 scientists 103 D-Index: 4 scientists 104 D-Index: 6 scientists 105 D-Index: 6 scientists 106+ D-Index: 98 scientists
30 D-Index 106+

This scientist: 62 D-Index — 82nd percentile

82% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 106 D-Index or more.

View D-Index distribution as a table
Number of Earth Science scientists by D-index, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
D-Index Scientists This scientist
30 144
31 215
32 278
33 379
34 366
35 372
36 389
37 366
38 344
39 349
40 296
41 289
42 277
43 279
44 248
45 257
46 212
47 202
48 207
49 204
50 183
51 178
52 182
53 178
54 163
55 117
56 163
57 120
58 113
59 136
60 135
61 96
62 103 62
63 83
64 103
65 83
66 89
67 92
68 89
69 78
70 75
71 53
72 62
73 54
74 35
75 52
76 50
77 32
78 37
79 20
80 33
81 36
82 34
83 34
84 24
85 19
86 18
87 26
88 30
89 17
90 21
91 19
92 15
93 14
94 20
95 9
96 10
97 15
98 13
99 3
100 13
101 3
102 9
103 4
104 6
105 6
106+ 98
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Overview

Ken-ichi Funakoshi is affiliated with the Comprehensive Research Organization for Science and Society in Japan. Their research spans multiple fields, primarily focusing on Materials Science, Earth and Planetary Sciences, and Physics and Astronomy. Within these areas, they have contributed extensively to subfields such as Materials Chemistry, Geophysics, and Mechanical Engineering, among others.

The scientist's main topics of work include:

  • High-pressure geophysics and materials
  • Nuclear Physics and Applications
  • Intermetallics and Advanced Alloy Properties
  • Astro and Planetary Science
  • Geological and Geochemical Analysis
  • Glass properties and applications
  • Nuclear materials and radiation effects

Ken-ichi Funakoshi has published research in various scientific venues, with frequent appearances in:

  • Journal of Mineralogical and Petrological Sciences
  • SSRN Electronic Journal
  • Scientific Reports
  • High Pressure Research
  • American Mineralogist

Recent publications by Ken-ichi Funakoshi include:

  • Behavior of light elements in iron-silicate-water-sulfur system during early Earth's evolution, 2021, Scientific Reports
  • High-pressure and high-temperature neutron-diffraction experiments using Kawai-type multi-anvil assemblies, 2021, High Pressure Research
  • Neutron diffraction study of hydrogen site occupancy in Fe0.95Si0.05 at 14.7 GPa and 800 K, 2021, Journal of Mineralogical and Petrological Sciences
  • Structure of basaltic glass at pressures up to 18 GPa, 2021, American Mineralogist
  • High-temperature diffraction experiments and phase diagram of ZrO2 and ZrSiO4, 2021, Zeitschrift für Naturforschung B

The scientist frequently collaborates with several co-authors, including:

  • Takanori Hattori
  • Asami Sano-Furukawa
  • Hiroyuki Kagi
  • Chikara Shito
  • Riko Iizuka

Best Publications

  • A first-order liquid–liquid phase transition in phosphorus

    Yoshinori Katayama;Takeshi Mizutani;Wataru Utsumi;Osamu Shimomura

  • Experimentally determined postspinel transformation boundary in Mg2SiO4 using MgO as an internal pressure standard and its geophysical implications

    Y Fei;J Van Orman;J Van Orman;J Li;J Li;W van Westrenen;W van Westrenen

  • Olivine‐wadsleyite transition in the system (Mg,Fe)2SiO4

    Tomoo Katsura;Hitoshi Yamada;Osamu Nishikawa;Osamu Nishikawa;Maoshuang Song

  • The Postspinel Phase Boundary in Mg2SiO4 Determined by in Situ X-ray Diffraction

    Tetsuo Irifune;Norimasa Nishiyama;Koji Kuroda;Toru Inoue

  • Post-spinel transition in Mg2SiO4 determined by high P–T in situ X-ray diffractometry

    Tomoo Katsura;Hitoshi Yamada;Toru Shinmei;Atsushi Kubo

  • Phase Relations and Volume Changes of Hafnia under High Pressure and High Temperature

    Osamu Ohtaka;Hiroshi Fukui;Taichi Kunisada;Tomoyuki Fujisawa

  • Ponded melt at the boundary between the lithosphere and asthenosphere

    Tatsuya Sakamaki;Akio Suzuki;Eiji Ohtani;Hidenori Terasaki

  • Viscosity of peridotite liquid up to 13 GPa: Implications for magma ocean viscosities

    Christian Liebske;Christian Liebske;Bettina Schmickler;Hidenori Terasaki;Hidenori Terasaki;Brent T. Poe

  • Phase relations and equations of state of ZrO 2 under high temperature and high pressure

    O. Ohtaka;H. Fukui;T. Kunisada;T. Fujisawa

  • Sound velocities of majorite garnet and the composition of the mantle transition region

    T. Irifune;Y. Higo;T. Inoue;Y. Kono

  • Transformations in the intermediate-range structure of SiO 2 glass under high pressure and temperature

    Yasuhiro Inamura;Yoshinori Katayama;Wataru Utsumi;Ken-ichi Funakoshi

  • Formation of pure polycrystalline diamond by direct conversion of graphite at high pressure and high temperature

    Tetsuo Irifune;Ayako Kurio;Shizue Sakamoto;Toru Inoue

  • In situ measurements of the phase transition boundary in Mg3Al2Si3O12: implications for the nature of the seismic discontinuities in the Earth’s mantle

    Kei Hirose;Yingwei Fei;Shigeaki Ono;Takehiko Yagi

  • A critical evaluation of pressure scales at high temperatures by in situ X-ray diffraction measurements

    Yingwei Fei;Jie Li;Kei Hirose;William Minarik

  • "Carbon in the core" revisited

    Yoichi Nakajima;Eiichi Takahashi;Toshihiro Suzuki;Ken-ichi Funakoshi

  • Wet subduction versus cold subduction

    Konstantin D. Litasov;Eiji Ohtani;Asami Sano;Akio Suzuki

  • A large-volume high-pressure and high-temperature apparatus for in situ X-ray observation, ‘SPEED-Mk.II’

    Tomoo Katsura;Ken ichi Funakoshi;Atsushi Kubo;Norimasa Nishiyama

  • Melting phase relation of FeHx up to 20 GPa: Implication for the temperature of the Earth's core

    K. Sakamaki;E. Takahashi;Y. Nakajima;Y. Nishihara

  • The viscosity of CaMgSi2O6 liquid at pressures up to 13 GPa

    Joy E. Reid;Akio Suzuki;Akio Suzuki;Ken Ichi Funakoshi;Hidenori Terasaki

  • In situ X-ray diffraction study of post-spinel transformation in a peridotite mantle: Implication for the 660-km discontinuity

    Konstantin Litasov;Eiji Ohtani;Asami Sano;Akio Suzuki

  • The system K2CO3-MgCO3 at 6 GPa and 900–1450 °C

    Anton Shatskiy;Anton Shatskiy;Igor S. Sharygin;Igor S. Sharygin;Pavel N. Gavryushkin;Pavel N. Gavryushkin;Konstantin D. Litasov;Konstantin D. Litasov

  • Plagioclase breakdown as an indicator for shock conditions of meteorites

    Tomoaki Kubo;Makoto Kimura;Takumi Kato;Masayuki Nishi

  • High-pressure science with a multi-anvil apparatus at SPring-8

    Wataru Utsumi;Ken-ichi Funakoshi;Yoshinori Katayama;Masaaki Yamakata

Frequent Co-Authors

Tetsuo Irifune
Tetsuo Irifune Ehime University
Eiji Ohtani
Eiji Ohtani Tohoku University
Akio Suzuki
Akio Suzuki Tohoku University
Tomoo Katsura
Tomoo Katsura University of Bayreuth
Daisuke Yamazaki
Daisuke Yamazaki Okayama University
Eiji Ito
Eiji Ito Okayama University
Konstantin D. Litasov
Konstantin D. Litasov Institute for High Pressure Physics
Toru Inoue
Toru Inoue Hiroshima University
Takashi Yoshino
Takashi Yoshino Okayama University
Takumi Kikegawa
Takumi Kikegawa High Energy Accelerator Research Organization

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