World Scientist and University Rankings 2025

Japan Engineering & Technology 133 Scientists Subject Rankings - 2025

The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 yearsAs of Jan 30, 2025, the rankings are determined according to the Total H IndexBETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.690) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].

Total 133 scientists, 1 country, 416 institution
* Total H IndexRankings
Ranking Based On Selection: 1
Teruo Okano
Tissue Engineering
Regenerative Medicine
Intelligent Polymer
Biomaterials
Drug Delivery Systems
Metrics
H-Index
i10 Index
Citation Counts
176
902
111,374
* Total H IndexRankings
Ranking Based On Selection: 2
Andrzej Cichocki
Biomedical Signal Processing
Neural Engineering
EEG
Tensor Decomposition
Analog_Electronics
Metrics
H-Index
i10 Index
Citation Counts
123
641
67,772
* Total H IndexRankings
Ranking Based On Selection: 4
H Okazawa
Neuroscience
Positron Emission Tomography
Metrics
H-Index
i10 Index
Citation Counts
56
204
10,551
* Total H IndexRankings
Ranking Based On Selection: 5
Toshiyo Tamura
Bio-instrumentation
Bio-signal interpretation. Assistive device
Rehabilitation engineering
Wearable technlogy...
Metrics
H-Index
i10 Index
Citation Counts
55
173
12,771
* Total H IndexRankings
Ranking Based On Selection: 6
Yuzuru Takamura
Biosensor
material science
micro fabrication
Metrics
H-Index
i10 Index
Citation Counts
52
136
9,432
* Total H IndexRankings
Ranking Based On Selection: 9
Yukio Ago
Neuroscience
Pharmacology
Neurochemistry
Metrics
H-Index
i10 Index
Citation Counts
46
135
6,175

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Total H IndexRankings
Ranking Based On Selection: 11
Yosuke Yamada
physical activity
energy metabolism
skeletal muscle
gerontology
body composition
Metrics
H-Index
i10 Index
Citation Counts
44
156
8,252
* Total H IndexRankings
Ranking Based On Selection: 12
Jun Ohta
Biomedical electronics
Retinal prosthesis
CMOS image sensors
Neural interface
Implantable devices
Metrics
H-Index
i10 Index
Citation Counts
44
182
7,916
* Total H IndexRankings
Ranking Based On Selection: 13
Ken Ichi Yamakoshi
Biomedical Engineering
Healthcare monitoring
Biomechanics
Metrics
H-Index
i10 Index
Citation Counts
44
134
6,421
* Total H IndexRankings
Ranking Based On Selection: 15
Kenji Yokoyama
biosensors
enzyme engineering
environmental biotechnology
Metrics
H-Index
i10 Index
Citation Counts
41
96
6,020
* Total H IndexRankings
Ranking Based On Selection: 16
Yamada Tomohiro
Robotics
Biomedical engineering
Metrics
H-Index
i10 Index
Citation Counts
40
168
8,016
* Total H IndexRankings
Ranking Based On Selection: 17
Maxim Ryzhii
Complex systems modeling
Graphene electronic devices
Biomedical engineering
Metrics
H-Index
i10 Index
Citation Counts
40
106
5,639
* Total H IndexRankings
Ranking Based On Selection: 18
Toshihisa Tanaka
Signal Processing
Biomedical Engineering
Biosignal Informatics
Metrics
H-Index
i10 Index
Citation Counts
37
124
5,547
* Total H IndexRankings
Ranking Based On Selection: 20
Hiroshi Kumagai
Biomedical engineering
Laser
Applied physics
Metrics
H-Index
i10 Index
Citation Counts
37
94
4,365
* Total H IndexRankings
Ranking Based On Selection: 23
Seiji Nakagawa 中川誠司
Biomedical Engineering
Hearing Science
Brain Science
Acoustical Engineering
Metrics
H-Index
i10 Index
Citation Counts
35
105
5,471
* Total H IndexRankings
Ranking Based On Selection: 25
Taishin Nomura
Motor Control
Computational Neuroscience
Nonlinear Dynamics
Biomedical Engineering
Metrics
H-Index
i10 Index
Citation Counts
32
78
3,856
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Teruo Okano
Metrics
H-Index
i10-Index
Citation Counts
176
902
111,374
Tissue Engineering
Regenerative Medicine
Intelligent Polymer
Biomaterials
Drug Delivery Systems
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Andrzej Cichocki
RIKEN Saitama, Japan
Metrics
H-Index
i10-Index
Citation Counts
123
641
67,772
Biomedical Signal Processing
Neural Engineering
EEG
Tensor Decomposition
Analog_Electronics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Hiroshi Ueda
Metrics
H-Index
i10-Index
Citation Counts
64
207
12,650
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
H Okazawa
Metrics
H-Index
i10-Index
Citation Counts
56
204
10,551
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Toshiyo Tamura
Metrics
H-Index
i10-Index
Citation Counts
55
173
12,771
Bio-instrumentation
Bio-signal interpretation. Assistive device
Rehabilitation engineering
Wearable technlogy...
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Yuzuru Takamura
Metrics
H-Index
i10-Index
Citation Counts
52
136
9,432
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Tomonaga T
Metrics
H-Index
i10-Index
Citation Counts
51
160
9,850
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Masaru Sugimachi
Metrics
H-Index
i10-Index
Citation Counts
49
215
11,165
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Yukio Ago
Hiroshima University Higashihiroshima, Japan
Metrics
H-Index
i10-Index
Citation Counts
46
135
6,175
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Hirokazu Kaji
Metrics
H-Index
i10-Index
Citation Counts
46
86
6,487

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Yosuke Yamada
Metrics
H-Index
i10-Index
Citation Counts
44
156
8,252
physical activity
energy metabolism
skeletal muscle
gerontology
body composition
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Jun Ohta
Metrics
H-Index
i10-Index
Citation Counts
44
182
7,916
Biomedical electronics
Retinal prosthesis
CMOS image sensors
Neural interface
Implantable devices
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Ken Ichi Yamakoshi
Metrics
H-Index
i10-Index
Citation Counts
44
134
6,421
Biomedical Engineering
Healthcare monitoring
Biomechanics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Masaki Yoshida
Metrics
H-Index
i10-Index
Citation Counts
43
148
8,904
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Kenji Yokoyama
Metrics
H-Index
i10-Index
Citation Counts
41
96
6,020
biosensors
enzyme engineering
environmental biotechnology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Yamada Tomohiro
Metrics
H-Index
i10-Index
Citation Counts
40
168
8,016
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Maxim Ryzhii
Metrics
H-Index
i10-Index
Citation Counts
40
106
5,639
Complex systems modeling
Graphene electronic devices
Biomedical engineering
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Toshihisa Tanaka
Metrics
H-Index
i10-Index
Citation Counts
37
124
5,547
Signal Processing
Biomedical Engineering
Biosignal Informatics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Toru Imamura
Metrics
H-Index
i10-Index
Citation Counts
37
78
4,614
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Hiroshi Kumagai
Metrics
H-Index
i10-Index
Citation Counts
37
94
4,365
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Akihito Yamamoto
Metrics
H-Index
i10-Index
Citation Counts
36
57
5,537
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Motoaki Kawanabe
Metrics
H-Index
i10-Index
Citation Counts
36
80
10,722
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Seiji Nakagawa 中川誠司
Metrics
H-Index
i10-Index
Citation Counts
35
105
5,471
Biomedical Engineering
Hearing Science
Brain Science
Acoustical Engineering
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Takuya Chiba
Metrics
H-Index
i10-Index
Citation Counts
33
56
2,808
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Taishin Nomura
Metrics
H-Index
i10-Index
Citation Counts
32
78
3,856
Motor Control
Computational Neuroscience
Nonlinear Dynamics
Biomedical Engineering