HIRATA Akimasa

写真a

Affiliation Department etc.

Department of Electrical and Mechanical Engineering
Department of Electrical and Mechanical Engineering

Title

Professor

Graduating School

  •  
    -
    1996.03

    Osaka University   Faculty of Engineering   Department of Communications Engineering   Graduated

Graduate School

  •  
    -
    2000.03

    Osaka University    Communications EngineeringDoctor's Course  Completed

Degree

  • Osaka University -  Doctor of Engineering

External Career

  • 1999.05
    -
    1999.10

    University of Victoria   Researcher  

Academic Society Affiliations

  • 2017.05
    -
    Now

    World Health Organization

  • 2010.12
    -
    Now

    Institute of Physics

  • 2005.01
    -
    Now

    International Commission on Non-Ionizing Radiation Protection

  • 2000.04
    -
    Now

    Institute of Electrical Engineers of Japan

  • 1999.04
    -
    Now

    Institute of Electrical and Electronics Engineers

Field of expertise (Grants-in-aid for Scientific Research classification)

  • Communication/Network engineering

  • Power engineering/Power conversion/Electric machinery

 

Research Career

  • Evaluation of Potential Health Effects of Electromagnetic Waves

    International Collaboration   Funded Research  

    Project Year:  2001.04  -  2001.04

  • Multiphysics simulation techniques

    Individual   Funded Research  

    Project Year:  1999.04  -  1999.04

Papers

  • Human exposure to pulsed fields in the frequency range from 6 to 100 GHz

    169. I. Laakso, R. Morimoto, J. Heinonen, K. Jokela, A. Hirata

    Physics in Medicine and Biology   62 ( 17 ) 6980 - 6992   2017.08  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Derivation of coupling factors for different wireless power transfer systems: inter- and intra-laboratory comparison

    K. Wake, I. Laakso, A. Hirata, J. Chakarothai, S. Watanabe, V. De Santis, M. Feliziani, M. Taki

    IEEE Transactions on Electromagnetic Compatibility ( IEEE )  59 ( 2 ) 677 - 685   2017.04  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Computational dosimetry of the human head exposed to near-field microwaves using measured blood flow

    I. Laakso, R. Morimoto, A. Hirata, T. Onishi

    IEEE Transactoins on Electromagnetic Compatibility ( IEEE )  59 ( 2 ) 739 - 746   2017.04

    Research paper (scientific journal)   Multiple Authorship

  • On the averaging area for incident power density for human exposure limits at frequencies over 6 GHz

    Y. Hashimoto, A. Hirata, R. Morimoto, S. Aonuma, I. Laakso, K. Jokela, K. R. Foster

    Physics in Medicine and Biology ( Institute of Physics )  137 ( 8 )   2017.04  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Multiphysics and thermal response models to improve accuracy of local temperature estimation in rat cortex under microwave exposure

    S. Kodera, J. Gomez-Tames, A. Hirata, H. Masuda, T. Arima, and S. Watanabe

    International Journal of Environmental Research and Public Health   14 ( 4 ) E358   2017.04  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Evaluation method of internal electric field in standardized human brain for different transcranial magnetic stimulation coils

    M. Iwahashi, J. Gomez-Tames, I. Laakso, A. Hirata

    Physics in Medicine and Biology ( Institute of Physics )  137 ( 6 )   2017.03  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • ICNIRP Statement on diagnostic dvices using non-ionizing radiaton: existing regulations and potential health risks

    A. C. Green, D. Coggon, R. De Seze, P. A. Gowland, C. Marino, A. P. Peralta, P. G. Soderberg, R. Stam, M. C. Ziskin, E. van Rongen, M. Feychting, M. Asmuss, R. Croft, G. D'Inzeo, A. Hirata, S. Miller, G. Oftedal, T. Okuno, M. Roosli, Z. Sienkiewicz, and S. Watanabe

    Health Physics   112 ( 3 ) 305 - 321   2017.03  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Time constants for temperature elevation in the human models exposed to dipole antennas and beams from 1 to 30 GHz

    Ryota Morimoto, Akimasa Hirata, Ilkka Laakso, Marvin C Ziskin and Kenneth R Foster

    Physics in Medicine and Biology ( Institute of Physics )  62 ( 5 ) 1676 - 1699   2017.02  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Effect of microscopic modeling of skin in electrical and thermal analysis of transcranial direct current stimulation

    J. Gomez-Tames, Y. Sugiyama, I. Laakso, S. Tanaka, S. Koyama, N. Sadato, A. Hirata

    Physics in Medicine and Biology ( Institute of Physics )  61 ( 14 ) 8825 - 8838   2016.11  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

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

    I. Laakso, S. Tanaka, M. Mikkonen, S. Koyama, N. Sadato, A. Hirata

    Neuroimage ( Elsevier )  137   140 - 151   2016.08  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

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Books

  • Recent progress in biomedical engineering

    (Part: Multiple Authorship )

    Intech  2009.11 ISBN: 9789533070049

  • ICNIRP RF Review:exposure to high frequency electromagnetic fields, biological effects and health consequences

    (Part: Multiple Authorship )

    2009.07 ISBN: 9783934994102

Review Papers

  • Topics in EMC issues related to safety and social life

    T. Funaki, A. Hirata, O. Fujiwara, K. Kawamata, S. Minegishi, H. Sekiguchi, S. Seto, M. Tokuda

    IEEJ Transactions on Fundamentals and Materials ( IEEJ )  129 ( 2 ) 56 - 61   2009.02

    Introduction and explanation (scientific journal)   Multiple Authorship

Presentations

  • safety assessment and standardization of human exposure to electromagnetic fields

    A. Hirata

    IEEE EMC-S講演会  2017.12  -  2017.12  IEEE EMC-S Japan Chapter

  • Activation thresholds for electrostimulation by TMS and DES: Brain mapping via multiscale model

    J. Gomez-Tames, S. Aonuma, T. Kutsuna, A Hirata  [Invited]

    Internatioanl Union on Radio Science General Assemmbly Scientific Symposium 2017  (Montreal, Canada)  2017.08  -  2017.08  URSI

  • Variability in tDCS electric fields: effects of electrode size and configuration

    I. Laakso, S. Tanaka, M. Mikkonen, S. Koyama, A. Hirata  [Invited]

    Internatioanl Union on Radio Science General Assemmbly Scientific Symposium 2017  (Montreal, Canada)  2017.08  -  2017.08  URSI

  • Interest and impact of human experimental research on exposure guidelines and current gaps to address

    A. Hirata  [Invited]

    BioEM2017  2017.06  -  2017.06 

  • Exposure assessment and dosimetry of WPT systems

    A. Hirata  [Invited]

    BioEM2016  (Ghent)  2016.06  -  2016.06 

  • HF Dosimetry

    S. Watanabe, A. Hirata  [Invited]

    ICNIRP International NIR Workshop  (South Africa)  2016.05  -  2016.05  ICNIRP

  • Multi-scale induction and electrostimulation model with experimental validation

    I. Laakso, A. Hirata

    IEEE ICES Workshop on Current Status of Low-Frequency Dosimetry  (Monterey, USA)  2015.06  -  2015.06  IEEE ICES

  • Role of computational dosimetry when setting the limits in safety standards/guidelines

    A. Hirata

    BioEM2015  (Monterey, USA)  2015.06  -  2015.06  Bioelectromagnetics Society

  • Relationship between spatial-averaged SAR and temperature elevation in human head models from 1−10 GHz

    A. Hirata, S. Ohta, I. Laakso, O. Fujiwara

    International Symposium on Electromagnetic Compatibility  (Tokyo)  2014.05  -  2014.05  IEICE

  • Computational dosimetry for wireless charging of an electrical vehicle

    I. Laakso, A. Hirata, O. Fujiwara

    International Symposium on Electromagnetic Compatibility  (Tokyo)  2014.05  -  2014.05  IEICE

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Academic Awards Received

  • The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology, Prizes for Science and Technology (Research Category)

    2011.04.11    

    Winner: Osamu Fujiwara, Akimasa Hirata

  • Prize for Young Scientists from Minister of Education, Culture, Sports, Science and Technology

    2006.04    

  • IEEE Fellow

    2017.01.01    

  • Fellow Award (Institute of Physics)

    2013.10    

    Winner: Akimasa Hirata

  • Best Paper Award

    2014.06.05    

    Winner: Shogo Tsuchida, Ilkka Laakso, Akimasa Hirata

  • Excellent Paper Award

    2014.05    

  • KDDI Foundation Award

    2011.03.24    

    Winner: Akimasa Hirata, Osamu Fujiwara

  • Excellent Paper Award

    2009.07.21    

    Winner: T. Nagai, A. Hirata, and O. Fujiawra

  • Research Encouragement Award, Funai Foundation for Information Technology

    2004.04    

  • TELECOM System Technology Award

    2004.04    

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Academic Activity

  • 2017.05
    -
    Now

    World Health Organization   Expert

  • 2017.05
    -
    Now

    International Commission on Non-Ionizing Radiation Protection   Project Group Chair

  • 2016.05
    -
    Now

    International Commission on Non-Ionizing Radiation Protection   Member of Main Commission

  • 2015.06
    -
    Now

    Institute of Physics   Guest Editor, Physics in Medicine and Biology

  • 2014.09
    -
    Now

    Institute of Electrical and Electronics Engineers   International Committee on Electromagnetic Safety (AdCom and SC6 Chair)

  • 2014.09
    -
    2015.06

    Institute of Electrical and Electronics Engineers  

  • 2013.03
    -
    2016.05

    International Commission on Non-Ionizing Radiation Protection  

  • 2012.05
    -
    Now

    Institute of Electrical Engineers of Japan  

  • 2011.01
    -
    2012.12

    Institute of Electrical and Electronics Engineers   Secretary, IEEE Microwave Theory and Techniques Society Nagoya Chapter

  • 2010.12
    -
    Now

    Institute of Physics   Member of International Advisory Board, Physics in Medicine and Biology

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