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
Electronics and Electrical Engineering 53 2456 2352 86 80 400 8955

Akimasa Hirata publications per year

The chart shows the history of publications by Akimasa Hirata between 1997 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Akimasa Hirata published across 29 years, from 1997 to 2025, averaging 19.1 papers a year. Output peaked at 39 publications in 2020. 54 of the 553 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1997 to 2025. Vertical axis: number of publications, 0 to 39. Peak 39 publications in 2020. 1997: 2 publications 1998: 2 publications 1999: 7 publications 2000: 7 publications 2001: 2 publications 2002: 6 publications 2003: 15 publications 2004: 12 publications 2005: 13 publications 2006: 15 publications 2007: 14 publications 2008: 16 publications 2009: 25 publications 2010: 27 publications 2011: 20 publications 2012: 28 publications 2013: 30 publications 2014: 21 publications 2015: 19 publications 2016: 14 publications 2017: 17 publications 2018: 31 publications 2019: 32 publications 2020: 39 publications 2021: 35 publications 2022: 17 publications 2023: 33 publications 2024: 20 publications 2025: 34 publications
1997 2025

553 publications in total across all disciplines

View publications per year as a table
Akimasa Hirata: publications per year, 1997 to 2025
Year Publications
1997 2
1998 2
1999 7
2000 7
2001 2
2002 6
2003 15
2004 12
2005 13
2006 15
2007 14
2008 16
2009 25
2010 27
2011 20
2012 28
2013 30
2014 21
2015 19
2016 14
2017 17
2018 31
2019 32
2020 39
2021 35
2022 17
2023 33
2024 20
2025 34
Total 553
Download as CSV

Akimasa Hirata publication distribution in Electronics and Electrical Engineering in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Electronics and Electrical Engineering in 2026. The highlighted bar marks where Akimasa Hirata sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 53 bars. Horizontal axis: publications, 34–53 to 1,065+. Vertical axis: number of scientists, 0 to 445. Most scientists, 445, have 174–193 publications. The last bar groups every scientist with 1,065 publications or more. The highlighted bar, 394–413 publications, is where this scientist sits. 34–53 publications: 24 scientists 54–73 publications: 52 scientists 74–93 publications: 114 scientists 94–113 publications: 203 scientists 114–133 publications: 269 scientists 134–153 publications: 355 scientists 154–173 publications: 403 scientists 174–193 publications: 445 scientists 194–213 publications: 430 scientists 214–233 publications: 431 scientists 234–253 publications: 399 scientists 254–273 publications: 366 scientists 274–293 publications: 335 scientists 294–313 publications: 300 scientists 314–333 publications: 276 scientists 334–353 publications: 250 scientists 354–373 publications: 214 scientists 374–393 publications: 187 scientists 394–413 publications: 152 scientists 414–433 publications: 169 scientists 434–453 publications: 147 scientists 454–473 publications: 111 scientists 474–493 publications: 117 scientists 494–513 publications: 103 scientists 514–533 publications: 99 scientists 534–553 publications: 92 scientists 554–573 publications: 75 scientists 574–593 publications: 58 scientists 594–613 publications: 69 scientists 614–633 publications: 50 scientists 634–653 publications: 62 scientists 654–673 publications: 54 scientists 674–693 publications: 44 scientists 694–713 publications: 37 scientists 714–733 publications: 28 scientists 734–753 publications: 26 scientists 754–773 publications: 26 scientists 774–793 publications: 19 scientists 794–813 publications: 23 scientists 814–833 publications: 20 scientists 834–853 publications: 16 scientists 854–873 publications: 20 scientists 874–893 publications: 11 scientists 894–913 publications: 11 scientists 914–933 publications: 16 scientists 934–953 publications: 13 scientists 954–973 publications: 10 scientists 974–993 publications: 11 scientists 994–1,013 publications: 9 scientists 1,014–1,033 publications: 9 scientists 1,034–1,053 publications: 10 scientists 1,054–1,064 publications: 6 scientists 1,065+ publications: 99 scientists
34–53 publications 1,065+

This scientist: 400 publications — 74th percentile

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

The last bar groups every scientist with 1,065 publications or more.

View publications distribution as a table
Number of Electronics and Electrical Engineering scientists by publication count, Research.com 2026 ranking edition. Based on 6,875 ranked scientists.
Publications Scientists This scientist
34–53 24
54–73 52
74–93 114
94–113 203
114–133 269
134–153 355
154–173 403
174–193 445
194–213 430
214–233 431
234–253 399
254–273 366
274–293 335
294–313 300
314–333 276
334–353 250
354–373 214
374–393 187
394–413 152 400
414–433 169
434–453 147
454–473 111
474–493 117
494–513 103
514–533 99
534–553 92
554–573 75
574–593 58
594–613 69
614–633 50
634–653 62
654–673 54
674–693 44
694–713 37
714–733 28
734–753 26
754–773 26
774–793 19
794–813 23
814–833 20
834–853 16
854–873 20
874–893 11
894–913 11
914–933 16
934–953 13
954–973 10
974–993 11
994–1,013 9
1,014–1,033 9
1,034–1,053 10
1,054–1,064 6
1,065+ 99
Download as CSV

Akimasa Hirata D-index placement in Electronics and Electrical Engineering in 2026

The chart shows the D-index (discipline H-index) distribution of Electronics and Electrical Engineering scientists ranked by Research.com in 2026. The highlighted bar marks where Akimasa Hirata sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 82 bars. Horizontal axis: D-Index, 30 to 111+. Vertical axis: number of scientists, 0 to 263. Most scientists, 263, have 32 D-Index. The last bar groups every scientist with 111 D-Index or more. The highlighted bar, 53 D-Index, is where this scientist sits. 30 D-Index: 178 scientists 31 D-Index: 257 scientists 32 D-Index: 263 scientists 33 D-Index: 262 scientists 34 D-Index: 244 scientists 35 D-Index: 236 scientists 36 D-Index: 211 scientists 37 D-Index: 220 scientists 38 D-Index: 214 scientists 39 D-Index: 214 scientists 40 D-Index: 205 scientists 41 D-Index: 187 scientists 42 D-Index: 194 scientists 43 D-Index: 201 scientists 44 D-Index: 155 scientists 45 D-Index: 189 scientists 46 D-Index: 148 scientists 47 D-Index: 160 scientists 48 D-Index: 134 scientists 49 D-Index: 130 scientists 50 D-Index: 141 scientists 51 D-Index: 156 scientists 52 D-Index: 108 scientists 53 D-Index: 130 scientists 54 D-Index: 112 scientists 55 D-Index: 97 scientists 56 D-Index: 111 scientists 57 D-Index: 102 scientists 58 D-Index: 108 scientists 59 D-Index: 120 scientists 60 D-Index: 103 scientists 61 D-Index: 93 scientists 62 D-Index: 92 scientists 63 D-Index: 74 scientists 64 D-Index: 77 scientists 65 D-Index: 73 scientists 66 D-Index: 64 scientists 67 D-Index: 69 scientists 68 D-Index: 60 scientists 69 D-Index: 39 scientists 70 D-Index: 57 scientists 71 D-Index: 59 scientists 72 D-Index: 46 scientists 73 D-Index: 49 scientists 74 D-Index: 38 scientists 75 D-Index: 35 scientists 76 D-Index: 32 scientists 77 D-Index: 35 scientists 78 D-Index: 31 scientists 79 D-Index: 22 scientists 80 D-Index: 34 scientists 81 D-Index: 31 scientists 82 D-Index: 34 scientists 83 D-Index: 23 scientists 84 D-Index: 18 scientists 85 D-Index: 30 scientists 86 D-Index: 19 scientists 87 D-Index: 19 scientists 88 D-Index: 20 scientists 89 D-Index: 8 scientists 90 D-Index: 17 scientists 91 D-Index: 7 scientists 92 D-Index: 14 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 12 scientists 97 D-Index: 10 scientists 98 D-Index: 10 scientists 99 D-Index: 12 scientists 100 D-Index: 16 scientists 101 D-Index: 5 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 8 scientists 105 D-Index: 9 scientists 106 D-Index: 13 scientists 107 D-Index: 4 scientists 108 D-Index: 5 scientists 109 D-Index: 10 scientists 110 D-Index: 8 scientists 111+ D-Index: 96 scientists
30 D-Index 111+

This scientist: 53 D-Index — 66th percentile

66% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 111 D-Index or more.

View D-Index distribution as a table
Number of Electronics and Electrical Engineering scientists by D-index, Research.com 2026 ranking edition. Based on 6,875 ranked scientists.
D-Index Scientists This scientist
30 178
31 257
32 263
33 262
34 244
35 236
36 211
37 220
38 214
39 214
40 205
41 187
42 194
43 201
44 155
45 189
46 148
47 160
48 134
49 130
50 141
51 156
52 108
53 130 53
54 112
55 97
56 111
57 102
58 108
59 120
60 103
61 93
62 92
63 74
64 77
65 73
66 64
67 69
68 60
69 39
70 57
71 59
72 46
73 49
74 38
75 35
76 32
77 35
78 31
79 22
80 34
81 31
82 34
83 23
84 18
85 30
86 19
87 19
88 20
89 8
90 17
91 7
92 14
93 9
94 15
95 10
96 12
97 10
98 10
99 12
100 16
101 5
102 7
103 7
104 8
105 9
106 13
107 4
108 5
109 10
110 8
111+ 96
Download as CSV

Research.com Recognitions

  • 2017 - IEEE Fellow For contributions to safety assessment and standardization of human exposure to electromagnetic fields

Overview

Akimasa Hirata is affiliated with the Nagoya Institute of Technology in Japan and has a substantial record of research contributions across multiple scientific disciplines. Their work spans engineering, medicine, and neuroscience, with a particular focus on biomedical engineering, electrical and electronic engineering, biophysics, neurology, and cognitive neuroscience.

Their research topics reflect a wide range of interests, including electromagnetic fields and biological effects, wireless body area networks, transcranial magnetic stimulation studies, COVID-19 epidemiological studies, EEG and brain-computer interfaces, climate change and health impacts, and energy harvesting in wireless networks.

Akimasa Hirata has published extensively in various reputable venues. Frequent places of publication include IEEE Access, IEEE Transactions on Electromagnetic Compatibility, Physics in Medicine and Biology, Frontiers in Neuroscience, and Brain Stimulation.

Their recent papers demonstrate engagement with subjects such as human exposure to electromagnetic fields, the influence of environmental factors on the spread of COVID-19, and clinical guidelines during the pandemic. Notable recent publications include:

  • Assessment of Human Exposure to Electromagnetic Fields: Review and Future Directions, 2021, IEEE Transactions on Electromagnetic Compatibility
  • Influence of population density, temperature, and absolute humidity on spread and decay durations of COVID-19: A comparative study of scenarios in China, England, Germany, and Japan, 2020, One Health
  • Correlation between COVID-19 Morbidity and Mortality Rates in Japan and Local Population Density, Temperature, and Absolute Humidity, 2020, International Journal of Environmental Research and Public Health
  • Guidelines for TMS/tES clinical services and research through the COVID-19 pandemic, 2020, Brain Stimulation
  • Influence of Absolute Humidity, Temperature and Population Density on COVID-19 Spread and Decay Durations: Multi-Prefecture Study in Japan, 2020, International Journal of Environmental Research and Public Health

Collaborations have been an important component of their research output. Frequent co-authors include Sachiko Kodera, Essam A. Rashed, Yinliang Diao, José Gómez-Tames, and Ilkka Laakso.

Akimasa Hirata has received recognition in the form of an IEEE Fellow award in 2017 for contributions to safety assessment and standardization of human exposure to electromagnetic fields.

Best Publications

  • Inter-subject Variability in Electric Fields of Motor Cortical tDCS

    Ilkka Laakso;Satoshi Tanaka;Soichiro Koyama;Valerio De Santis

  • Wireless Power Transfer Charging System for AIMDs and Pacemakers

    T. Campi;S. Cruciani;F. Palandrani;V. De Santis

  • Temperature rises in the human eye exposed to EM waves in the frequency range 0.6-6 GHz

    A. Hirata;S.-I. Matsuyama;T. Shiozawa

  • Synopsis of IEEE Std C95.1™-2019 “IEEE Standard for Safety Levels With Respect to Human Exposure to Electric, Magnetic, and Electromagnetic Fields, 0 Hz to 300 GHz”

    William H. Bailey;Tim Harrington;Akimasa Hirata;Robert Rob Kavet

  • Effects of coil orientation on the electric field induced by TMS over the hand motor area.

    Ilkka Laakso;Akimasa Hirata;Yoshikazu Ugawa

  • Fast multigrid-based computation of the induced electric field for transcranial magnetic stimulation

    Ilkka Laakso;Akimasa Hirata

  • Correlation of maximum temperature increase and peak SAR in the human head due to handset antennas

    A. Hirata;T. Shiozawa

  • Can electric fields explain inter-individual variability in transcranial direct current stimulation of the motor cortex?

    Ilkka Laakso;Marko Mikkonen;Soichiro Koyama;Akimasa Hirata

  • Electric fields of motor and frontal tDCS in a standard brain space: A computer simulation study.

    Ilkka Laakso;Ilkka Laakso;Satoshi Tanaka;Marko Mikkonen;Soichiro Koyama

  • Where and what TMS activates: Experiments and modeling

    Ilkka Laakso;Takenobu Murakami;Akimasa Hirata;Yoshikazu Ugawa

  • Temperature increase in the human head due to a dipole antenna at microwave frequencies

    A. Hirata;M. Morita;T. Shiozawa

  • Human exposure to radiofrequency energy above 6 GHz: review of computational dosimetry studies.

    Akimasa Hirata;Sachiko Kodera;Kensuke Sasaki;Jose Gomez-Tames

  • Reducing the staircasing error in computational dosimetry of low-frequency electromagnetic fields.

    Ilkka Laakso;Akimasa Hirata

  • Cost of focality in TDCS: Interindividual variability in electric fields.

    Marko Mikkonen;Ilkka Laakso;Satoshi Tanaka;Akimasa Hirata

  • Computational analysis shows why transcranial alternating current stimulation induces retinal phosphenes.

    Ilkka Laakso;Akimasa Hirata

  • Temperature increase in human eyes due to near-field and far-field exposures at 900 MHz, 1.5 GHz, and 1.9 GHz

    A. Hirata

  • Temperature elevation in the human brain and skin with thermoregulation during exposure to RF energy

    Sachiko Kodera;Jose Gomez-Tames;Akimasa Hirata

  • Evaluation of SAR in a human body model due to wireless power transmission in the 10 MHz band.

    Ilkka Laakso;Shogo Tsuchida;Akimasa Hirata;Yoshitsugu Kamimura

  • Confirmation of quasi-static approximation in SAR evaluation for a wireless power transfer system.

    Akimasa Hirata;Fumihiro Ito;Ilkka Laakso

  • Correlation between maximum temperature increase and peak SAR with different average schemes and masses

    A. Hirata;M. Fujimoto;T. Asano;Jianqing Wang

  • Dominant factors influencing whole-body average SAR due to far-field exposure in whole-body resonance frequency and GHz regions.

    Akimasa Hirata;Sachiko Kodera;Jianqing Wang;Osamu Fujiwara

  • Intercomparison of induced fields in Japanese male model for ELF magnetic field exposures: effect of different computational methods and codes.

    Akimasa Hirata;Kenichi Yamazaki;Shoji Hamada;Yoshitsugu Kamimura

Frequent Co-Authors

Osamu Fujiwara
Osamu Fujiwara Nagoya Institute of Technology
Yoshikazu Ugawa
Yoshikazu Ugawa Fukushima Medical University
Kenneth R. Foster
Kenneth R. Foster University of Pennsylvania
Mauro Feliziani
Mauro Feliziani University of L'Aquila
Norihiro Sadato
Norihiro Sadato National Institute for Physiological Sciences
Wout Joseph
Wout Joseph Ghent University
Rodney J. Croft
Rodney J. Croft University of Wollongong
Tomoo Ushio
Tomoo Ushio Osaka University
Joe Wiart
Joe Wiart Institut Mines-Télécom
Adèle C. Green
Adèle C. Green QIMR Berghofer Medical Research Institute

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Students pursuing Electronics and Electrical Engineering often explore complementary fields to enhance their skill sets and career opportunities. For those interested in leadership and organizational skills, an online project management degree accelerated programs provide flexible options to fast-track their education while working. These programs help engineers transition into management roles by developing crucial project oversight expertise.

Additionally, a bachelor of project management can be a valuable asset for those aiming to lead complex engineering projects across industries. It bridges technical knowledge with practical leadership skills, making graduates highly competitive.

Many professionals balance studies with careers, so exploring accelerated degree programs for working adults ensures they can advance their education without sacrificing employment. Such programs are designed with flexibility and efficiency in mind, ideal for continuous learning in fast-evolving technical fields.

For those focused on education and training within engineering companies, an instructional design masters degree online equips professionals with skills to develop effective training materials and programs, enhancing workforce performance and knowledge transfer.

Best Scientists Citing Akimasa Hirata

Trending Scientists

Recently Published Articles