World's Best Scientists 2026 revealed!

D-Index & Metrics

Electronics and Electrical Engineering

D-Index
53
Citations
8955
World Ranking
2456
National Ranking
86

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

  • Assessment of Human Exposure to Electromagnetic Fields: Review and Future Directions

    Akimasa Hirata;Yinliang Diao;Teruo Onishi;Kensuke Sasaki

  • 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
Mauro Feliziani
Mauro Feliziani University of L'Aquila
Wout Joseph
Wout Joseph Ghent University
Adèle C. Green
Adèle C. Green QIMR Berghofer Medical Research Institute
Kohei Sasaki
Kohei Sasaki Novel Crystal Technology, Inc

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