HASEGAWA Koji

Faculty of Engineering Department of Mechanical EngineeringAssociate Professor

  • E-Mail: kojihasegawacc.kogakuin.ac.jp

    Career

    • Apr. 2016 - Present
      Kogakuin University of Technology & Engineering, Faculty of Engineering Department of Mechanical Engineering, Associate professor
    • Apr. 2024 - Mar. 2025
      University of Stuttgart, Institute of Aerospace Thermodynamics (ITLR), Visiting researcher
    • Apr. 2012 - Mar. 2016
      Kogakuin University of Technology & Engineering, Assistant professor
    • Apr. 2010 - Mar. 2012
      PricewaterhouseCoopers
    • Apr. 2008 - Mar. 2009
      (株)イーオン・イーストジャパン

    Educational Background

    • Apr. 2012 - Mar. 2013
      University of Tsukuba, Graduate School of Systems and Information Engineering, Department of Engineering Mechanics and Energy
    • Apr. 2008 - Mar. 2010
      University of Tsukuba
    • Apr. 2006 - Mar. 2008
      University of Tsukuba
    • Apr. 2001 - Mar. 2006
      Ibaraki National College of Technology, Department of Electronics and Control Engineering

    Degree

    • Ph.D. in Engineering, University of Tsukuba

    Affiliated academic society

    • THE JAPAN SOCIETY OF MICROGRAVITY APPLICATION
    • THE JAPANESE SOCIETY FOR MULTIPHASE FLOW
    • THE HEAT TRANSFER SOCIETY OF JAPAN
    • THE JAPAN SOCIETY OF MECHANICAL ENGINEERS
    • 可視化情報学会
    • American Physical Society
    • The Japan Society of Fluid Mechanics
    • 日本液体微粒化学会

    IDs

    Research Field

    • Natural sciences, Bio-, chemical, and soft-matter physics
    • Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Thermal engineering
    • Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Fluid engineering

    Research Keyword

    • Multiphase flow
    • Phase change
    • Interface
    • Transport phenomena
    • 複雑流体
    • Soft matter
    • Fluid dynamics
    • Heat transfer
    • Nonlinear acoustics
    • Space utilization

    Books and other publications

    • Acoustic Levitation From Physics to Applications
      Duyang Zang; Asier Marzo; Marco A. B. Andrade; Xiao-Peng Chen; Zehui Zhang; Kangqi Liu; Koji Hasegawa; Yanju Wei; Da-Chuan Yin; Soichiro Tsujino; Takashi Tomizaki, Joint work, Flow Fields and Heat Transfer Associated with an Acoustically Levitated Droplet
      Springer, Singapore, Jun. 2020

    Paper

    MISC

    Lectures, oral presentations, etc.

    • Mysterious and Functional Droplets: Acoustic Levitation and Beyond for Lab-in-a-Drop
      Koji Hasegawa
      (Invited talk) Seminar ME, King Abdullah University of Science and Technology(KAUST), 17 Feb. 2025, [Invited]
    • Droplets in air: Interfacial dynamics, Transport phenomena, Phase change processes
      Koji Hasegawa
      (Invited talk) Experimental and Numerical Methods in Science, 18 Jun. 2024, [Invited]
    • Lab-in-a-drop approach: Contactless droplets manipulation driven by acoustic fields
      Koji Hasegawa
      08 Aug. 2023, [Invited]
    • Toward Lab-in-a-drop: Acoustic manipulation of droplets in air
      Koji Hasegawa
      (Invited talk) Multiphase Flow Seminar, ITLR, University of Stuttgart, 22 Jun. 2023, [Invited]
    • ライデンフロスト効果を駆使した液滴の非接触搬送
      28 Nov. 2022, [Invited]
    • Lab-in-a-drop approach: Contactless droplet manipulation driven by acoustic fields
      Koji Hasegawa
      (Invited talk) Water Frontier Research Center (WaTUS), Research Institute for Science and Technology (RIST), Tokyo University of Science (TUS) Special Seminar, 10 Nov. 2022, [Invited]
    • 衝突液滴と液面の相互作用:衝突,空隙,噴流,沈降,混合,分裂
      07 Nov. 2022, [Invited]
    • Lab-in-a-drop approach: Contactless droplet manipulation driven by acoustic fields
      Koji Hasegawa
      09 Sep. 2022, [Invited]
    • Lab-in-a-drop: Transport Phenomena of Droplet in Acoustic Levitation
      Koji Hasegawa
      (Invited talk) HYDROGENIUS & I2CNER Joint Research Symposium, 31 Jan. 2020, [Invited]

    Award

    • Apr. 2025
      Ministry of Education, Culture, Sports, Science and Technology (MEXT), MEXT Prize for Young Scientists in the field of science and technology for the fiscal year 2025
    • Aug. 2024
      Impact and boiling of single and multiple droplets on a heated solid surface
      10th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics(ExHFT-10), Best poster award
    • Aug. 2022
      Feature Paper in Micromachines: Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field
    • Aug. 2022
      Editor’s Choice in Micromachines: Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field
    • Feb. 2022
      Star reviewer of 2021 in Physics of Fluids
      Koji Hasegawa
    • Dec. 2021
    • Dec. 2021
    • Feb. 2021
      Star reviewer of 2020 in Physics of Fluids
      Koji Hasegawa
    • Dec. 2020
      Most Read Scilights of 2020: Understanding droplet stability in acoustic levitation
    • Dec. 2020
      29th ILASS-Japan Symposium Best presentation award
      Koji Hasegawa
    • Dec. 2020
      Editor's pick in Physics of Fluids: Breakup characteristics of levitated droplets in a resonant acoustic field
    • Dec. 2020
    • Aug. 2020
    • May 2020
      American Institute of Physics(AIP), AIP Scilight(science highlight): Acoustically induced breakup of levitated droplets
      Kohei Aoki;Koji Hasegawa
    • May 2020
      American Institute of Physics(AIP), Featured Article(journal's best) in AIP Advances: Acoustically induced breakup of levitated droplets
      Kohei Aoki;Koji Hasegawa
    • Nov. 2019
      American Institute of Physics(AIP), Featured Article(journal's best) in Physics of Fluids: Internal flow during mixing induced in acoustically levitated droplets by mode oscillations
      Koji Hasegawa;Ayumu Watanabe;Akiko Kaneko;Yutaka Abe
    • Oct. 2019
      American Institute of Physics(AIP), Featured Article(journal's best) in Physics of Fluids: Transition of flow field of acoustically levitated droplets with evaporation
      Yuya Sasaki;Kenji Kobayashi;Koji Hasegawa;Akiko Kaneko;Yutaka Abe
    • Oct. 2019
      AIP, Scilight(science highlight): Transition of flow field of acoustically levitated droplets with evaporation
      Yuya Sasaki;Kenji Kobayashi;Koji Hasegawa;Akiko Kaneko;Yutaka Abe
    • Dec. 2018
    • Aug. 2018
      American Institute of Physics(AIP), Featured Article(journal's best) in Physics of Fluids: Flow structure and evaporation behavior of an acoustically levitated droplet
      Kenji Kobayashi;Atsushi Goda;Koji Hasegawa;Yutaka Abe
    • Oct. 2017
    • Apr. 2017
    • Sep. 2015
      The 10th International Topical Team Workshop on Two-Phase Systems for Ground and Space Applications: Outstanding poster award
    • Oct. 2014
    • Jun. 2014
    • Nov. 2013
    • Mar. 2010
    • Mar. 2010
    • Mar. 2010
    • Oct. 2009
    • Sep. 2009
      International Topical Team Workshop on Two-Phase Systems for Ground and Space Applications workshop Best poster prize
      Koji Hasegawa
    • Jul. 2009
      27th ISTS, International Symposium on Space Technology and Science JAXA President Award
      Koji Hasegawa
    • Mar. 2009
    • Nov. 2008
    • Oct. 2008
    • Mar. 2008

    Research Themes

    Member History

    • May 2025 - Present
      専門家ネットワーク 専門調査員
    • Apr. 2025 - Present
      若手の会 副委員長
    • Sep. 2024 - Present
      評議員
    • Sep. 2024 - Present
      理事(関東地区担当)
    • Apr. 2024 - Present
      若手の会 委員
    • Sep. 2022 - Present
      企画部会 企画運営委員会 委員
    • Jul. 2017 - Present
      Int. J. Microgravity Sci. Appl. 編集委員
    • Oct. 2024 - Jul. 2025
      The 16th International Symposium on Particle Image Velocimetry (ISPIV2025) 実行委員
    • Oct. 2024 - Jul. 2025
      The 21st International Symposium on Flow Visualization (ISFV21) 実行委員
    • Apr. 2013 - Mar. 2024
      動力エネルギーシステム部門 研究企画委員会 委員
    • Oct. 2022 - Sep. 2023
      可視化情報学会誌 第35期編集委員
    • Sep. 2022 - Aug. 2023
      若手研究者セミナー2023 運営委員会 委員長
    • Jun. 2013 - Jun. 2023
      理事
    • Apr. 2019 - Mar. 2023
      動力エネルギー部門 関東支部 代議員
    • Apr. 2021 - Sep. 2022
      動力エネルギーシステム部門 部門代表委員
    • Sep. 2021 - Aug. 2022
      第50回可視化情報シンポジウム 実行委員会 幹事
    • Sep. 2021 - Aug. 2022
      若手研究者夏季セミナー2022 運営委員会 委員長
    • Sep. 2020 - Aug. 2022
      評議員
    • Apr. 2021 - Mar. 2022
      関東支部 第28期総会・講演会 実行委員会 委員
    • Jan. 2021 - Jan. 2022
      可視化情報学会誌 第33期編集委員
    • May 2021 - Oct. 2021
      日本マイクログラビティ応用学会 第33回学術講演会 プログラム委員
    • Apr. 2020 - Mar. 2021
      動力エネルギーシステム部門 学会企画委員会 委員長
    • Sep. 2017 - Jun. 2019
      27th International Conference on Nuclear Engineering 組織委員会 委員
    • Apr. 2017 - Mar. 2019
      流体工学部門 技術委員会 講習会WG 委員(流体力学基礎講座担当)
    • Apr. 2017 - Mar. 2018
      動力エネルギーシステム部門 研究企画委員会 委員長
    • Sep. 2016 - Aug. 2017
      混相流シンポジウム2017 実行委員会 委員
    • Apr. 2016 - Mar. 2017
      動力エネルギーシステム部門 研究企画委員会 幹事
    • Jul. 2015 - Jun. 2016
      第21回動力・エネルギー技術シンポジウム実行委員会 委員