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Japan 110 Scientists H-Index Engineering & Technology / Energy Engineering Rankings - 2026

This real-time ranking measures researchers’ academic productivity and impact at global, continental, national, and institutional levels using total and recent 5-year H-index data. Comparative analysis is available across 13 main fields and 221 academic disciplines.

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Total 110 scientist, 1 country, 48 institution , Updates every 3 days
* Total H Index Rankings

Rankings

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18,409
World Rank
Japan
261
Country Rank
University of Tokyo Logo
17
University
Ranking Based On Selection:
1
Takayasu Sakurai
University of Tokyo Tokyo, Japan
Engineering & Technology / Energy Engineering
Energy-efficient micro-electronics design | Power electronics | Flexible electronics desig

H-Index Metrics

  • Total
    85
  • Last 5 Years
    32
  • Last 5 Years / Total
    0.376
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* Total H Index Rankings

Rankings

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30,587
World Rank
Japan
471
Country Rank
University of Tsukuba Logo
5
University
Ranking Based On Selection:
2
Yutaka Moritomo
University of Tsukuba Tsukuba, Japan
Engineering & Technology / Energy Engineering
energy material | strongly correlated electron syste

H-Index Metrics

  • Total
    73
  • Last 5 Years
    30
  • Last 5 Years / Total
    0.411
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* Total H Index Rankings

Rankings

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36,953
World Rank
Japan
587
Country Rank
Yokohama National University Logo
5
University
Ranking Based On Selection:
3
Naoaki Yabuuchi
Yokohama National University Yokohama, Japan
Engineering & Technology / Energy Engineering
Energy Storage | Solid-State Chemistry | Batter

H-Index Metrics

  • Total
    68
  • Last 5 Years
    53
  • Last 5 Years / Total
    0.779
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* Total H Index Rankings

Rankings

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42,722
World Rank
Japan
699
Country Rank
Kyoto University Logo
65
University
Ranking Based On Selection:
4
Yoshiharu Uchimoto
Kyoto University Kyoto, Japan
Engineering & Technology / Energy Engineering
Battery | Fuel cells | Water electrolysis | Electrochemistry | solid state ionic

H-Index Metrics

  • Total
    65
  • Last 5 Years
    45
  • Last 5 Years / Total
    0.692
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* Total H Index Rankings

Rankings

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45,400
World Rank
Japan
755
Country Rank
University of Hyogo Logo
2
University
Ranking Based On Selection:
5
Seigo Ito
University of Hyogo Kobe, Japan
Engineering & Technology / Energy Engineering
solar cell

H-Index Metrics

  • Total
    64
  • Last 5 Years
    37
  • Last 5 Years / Total
    0.578
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* Total H Index Rankings

Rankings

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53,365
World Rank
Japan
934
Country Rank
University of Tokyo Logo
54
University
Ranking Based On Selection:
6
Muhammad Aziz
University of Tokyo Tokyo, Japan
Engineering & Technology / Energy Engineering
Energy Systems | Heat Transfer | Hydrogen/Ammonia Production-Storage-Utilization | Carbon-Free System | Electric Vehicle Utilizatio

H-Index Metrics

  • Total
    60
  • Last 5 Years
    52
  • Last 5 Years / Total
    0.867
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* Total H Index Rankings

Rankings

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55,315
World Rank
Japan
972
Country Rank
Nagoya Institute of Technology Logo
4
University
Ranking Based On Selection:
7
Tetsuo Soga
Nagoya Institute of Technology Nagoya, Japan
Engineering & Technology / Energy Engineering
Solar cell | Nanomaterial | Photovoltaic

H-Index Metrics

  • Total
    60
  • Last 5 Years
    29
  • Last 5 Years / Total
    0.483
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* Total H Index Rankings

Rankings

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56,139
World Rank
Japan
999
Country Rank
Kyoto University Logo
89
University
Ranking Based On Selection:
8
Ben Mclellan
Kyoto University Kyoto, Japan
Engineering & Technology / Energy Engineering
Nexus | Sustainability | Energy | Minerals | Sustainable Desig

H-Index Metrics

  • Total
    59
  • Last 5 Years
    48
  • Last 5 Years / Total
    0.814
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* Total H Index Rankings

Rankings

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66,193
World Rank
Japan
1,193
Country Rank
Toyota Central R&D Labs., Inc Logo
2
University
Ranking Based On Selection:
9
Takeshi Morikawa
Toyota Central R&D Labs., Inc Aichi, Japan
Engineering & Technology / Energy Engineering
photocatalysis | solar energy conversion | energy storage | electrocatalysi

H-Index Metrics

  • Total
    56
  • Last 5 Years
    35
  • Last 5 Years / Total
    0.625
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* Total H Index Rankings

Rankings

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74,335
World Rank
Japan
1,365
Country Rank
Nagoya University Logo
66
University
Ranking Based On Selection:
10
Noritaka Usami
Nagoya University Nagoya, Japan
Engineering & Technology / Energy Engineering
Solar Cells | Crystal Growth | Defect Engineering | Materials and Process Informatic

H-Index Metrics

  • Total
    54
  • Last 5 Years
    24
  • Last 5 Years / Total
    0.444
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* Total H Index Rankings

Rankings

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79,275
World Rank
Japan
1,465
Country Rank
Ritsumeikan University Logo
4
University
Ranking Based On Selection:
11
Takashi Minemoto
Ritsumeikan University Kyoto, Japan
Engineering & Technology / Energy Engineering
Solar cell | Compound semiconductor | Silicon | Device simulation | PV module-system-outdoor testin

H-Index Metrics

  • Total
    52
  • Last 5 Years
    41
  • Last 5 Years / Total
    0.788
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* Total H Index Rankings

Rankings

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96,144
World Rank
Japan
1,862
Country Rank
Institute of Science Tokyo Logo
63
University
Ranking Based On Selection:
12
Yamada Akira
Institute of Science Tokyo Tokyo, Japan
Engineering & Technology / Energy Engineering
solar cells | semiconductors | Cu(InGa)Se2 | Si | Cu2ZnSnS

H-Index Metrics

  • Total
    49
  • Last 5 Years
    19
  • Last 5 Years / Total
    0.388
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* Total H Index Rankings

Rankings

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120,353
World Rank
Japan
2,366
Country Rank
Kyoto University Logo
172
University
Ranking Based On Selection:
13
Ryota Sakamoto
Kyoto University Kyoto, Japan
Engineering & Technology / Energy Engineering
chemistr

H-Index Metrics

  • Total
    44
  • Last 5 Years
    33
  • Last 5 Years / Total
    0.750
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* Total H Index Rankings

Rankings

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121,038
World Rank
Japan
2,377
Country Rank
Kyoto University Logo
174
University
Ranking Based On Selection:
14
Tetsuaki Fujihara
Kyoto University Kyoto, Japan
Engineering & Technology / Energy Engineering
Organometallics | Catalysis | Carbon Dioxide | Coordination Chemistr

H-Index Metrics

  • Total
    44
  • Last 5 Years
    31
  • Last 5 Years / Total
    0.705
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* Total H Index Rankings

Rankings

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123,758
World Rank
Japan
2,450
Country Rank
Osaka Metropolitan University Logo
19
University
Ranking Based On Selection:
15
Ryohei Yokoyama
Osaka Metropolitan University Osaka, Japan
Engineering & Technology / Energy Engineering
Energy | Energy Systems | Energy Management | Cogeneration | Optimizatio

H-Index Metrics

  • Total
    44
  • Last 5 Years
    22
  • Last 5 Years / Total
    0.500
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* Total H Index Rankings

Rankings

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123,970
World Rank
Japan
2,456
Country Rank
Kyoto University Logo
177
University
Ranking Based On Selection:
16
Ishihara Keiichi N
Kyoto University Kyoto, Japan
Engineering & Technology / Energy Engineering
Energy Policy | Environment | Catalysis | Materials | Quasicrysta

H-Index Metrics

  • Total
    44
  • Last 5 Years
    22
  • Last 5 Years / Total
    0.500
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* Total H Index Rankings

Rankings

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138,543
World Rank
Japan
2,795
Country Rank
University of Tokyo Logo
129
University
Ranking Based On Selection:
17
Satoshi Uchida
University of Tokyo Tokyo, Japan
Engineering & Technology / Energy Engineering
Solar Cell | Electrochemistry | Material Chemistr

H-Index Metrics

  • Total
    42
  • Last 5 Years
    17
  • Last 5 Years / Total
    0.405
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* Total H Index Rankings

Rankings

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143,208
World Rank
Japan
2,871
Country Rank
University of Miyazaki Logo
9
University
Ranking Based On Selection:
18
Kenji Yoshino
University of Miyazaki Miyazaki, Japan
Engineering & Technology / Energy Engineering
Solar Cell | Compound semiconductor | Transparent conducting film | Thermoelectric materia

H-Index Metrics

  • Total
    41
  • Last 5 Years
    27
  • Last 5 Years / Total
    0.659
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* Total H Index Rankings

Rankings

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181,012
World Rank
Japan
3,718
Country Rank
Nagaoka University of Technology Logo
11
University
Ranking Based On Selection:
19
Tadachika Nakayama (中山 忠親)
Nagaoka University of Technology Nagaoka, Japan
Engineering & Technology / Energy Engineering
Ceramics Engineering | Nanotechnology | Power Engineering | Environmental Engineering | Energy engineerin

H-Index Metrics

  • Total
    37
  • Last 5 Years
    20
  • Last 5 Years / Total
    0.541
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* Total H Index Rankings

Rankings

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183,850
World Rank
Japan
3,791
Country Rank
Okinawa Institute of Science & Technology Logo
23
University
Ranking Based On Selection:
20
Tongle Bu
Okinawa Institute of Science & Technology Okinawa, Japan
Engineering & Technology / Energy Engineering
Perovskite solar cells | Surface sciences | Crystalline materials | Energy materials and device

H-Index Metrics

  • Total
    36
  • Last 5 Years
    33
  • Last 5 Years / Total
    0.917
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* Total H Index Rankings

Rankings

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192,073
World Rank
Japan
3,965
Country Rank
Toyohashi University of Technology Logo
5
University
Ranking Based On Selection:
21
Masanobu Izaki
Toyohashi University of Technology Toyohashi, Japan
Engineering & Technology / Energy Engineering
Energy conversio

H-Index Metrics

  • Total
    36
  • Last 5 Years
    18
  • Last 5 Years / Total
    0.500
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* Total H Index Rankings

Rankings

flag
193,869
World Rank
Japan
4,022
Country Rank
Kyushu University Logo
128
University
Ranking Based On Selection:
22
Andrew Chapman
Kyushu University Fukuoka, Japan
Engineering & Technology / Energy Engineering
Energy | renewables | policy | equit

H-Index Metrics

  • Total
    35
  • Last 5 Years
    33
  • Last 5 Years / Total
    0.943
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* Total H Index Rankings

Rankings

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204,023
World Rank
Japan
4,262
Country Rank
Shimane University Logo
10
University
Ranking Based On Selection:
23
Satoru Okamoto
Shimane University Matsue, Japan
Engineering & Technology / Energy Engineering
energ

H-Index Metrics

  • Total
    35
  • Last 5 Years
    15
  • Last 5 Years / Total
    0.429
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* Total H Index Rankings

Rankings

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215,486
World Rank
Japan
4,525
Country Rank
Institute of Science Tokyo Logo
157
University
Ranking Based On Selection:
24
Keiko Waki
Institute of Science Tokyo Tokyo, Japan
Engineering & Technology / Energy Engineering
solar cells fuel cells carbon nanotub

H-Index Metrics

  • Total
    34
  • Last 5 Years
    18
  • Last 5 Years / Total
    0.529
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* Total H Index Rankings

Rankings

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217,585
World Rank
Japan
4,591
Country Rank
Okinawa Institute of Science & Technology Logo
28
University
Ranking Based On Selection:
25
Yuqiang Liu (刘玉强)
Okinawa Institute of Science & Technology Okinawa, Japan
Engineering & Technology / Energy Engineering
Organic solar cell | Light-emitting diode | Wearable devic

H-Index Metrics

  • Total
    33
  • Last 5 Years
    32
  • Last 5 Years / Total
    0.970
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