Masafumi Imai

Profile Information

Affiliation: Lecturer, Department of Electrical Engineering & Information Science, Niihama National College of Technology, Niihama College

Degree: Doctor of Science(Mar, 2016, Kyoto University)

Researcher number: 10877260
ORCID ID: https://orcid.org/0000-0002-2814-4036
J-GLOBAL ID: 202001012344768654
researchmap Member ID: R000001793

Research Interests

Research Areas

Natural sciences / Space and planetary science / Science on Planetary Radio Emissions

Research History

Apr, 2023 - Present

Lecturer, Department of Electrical Engineering and Information Science, National Institute of Technology, Niihama College
Apr, 2020 - Mar, 2023

Assistant Professor, Department of Electrical Engineering and Information Science, National Institute of Technology, Niihama College
Mar, 2016 - Mar, 2020

Postdoctoral Research Scholar, Department of Physics and Astronomy, University of Iowa
Apr, 2013 - Mar, 2016

Research Fellow of Japan Society for the Promotion of Science, Graduate School of Science, Kyoto University

Education

Apr, 2013 - Mar, 2016

Division of Earth and Planetary Science, Graduate School of Science, Kyoto University
Apr, 2011 - Mar, 2013

Division of Earth and Planetary Science, Graduate School of Science, Kyoto University
Apr, 2008 - Mar, 2011

Mechanical and Electrical Engineering, Advanced Courses, National Institute of Technology, Kochi College
Apr, 2003 - Mar, 2008

Department of Electrical Engineering, National Institute of Technology, Kochi College

Major Awards

Feb, 2023

令和4年度優秀教員, 独立行政法人国立高等専門学校新居浜工業高等専門学校

今井雅文

Major Papers

High‐Spatiotemporal Resolution Observations of Jupiter Lightning‐Induced Radio Pulses Associated With Sferics and Thunderstorms

Masafumi Imai, Michael H. Wong, Ivana Kolmašová, Shannon T. Brown, Ondřej Santolík, William S. Kurth, George B. Hospodarsky, Scott J. Bolton, Steven M. Levin

Geophysical Research Letters, 47(15), Aug 16, 2020 Peer-reviewed
Concurrent Jovian S‐Burst Beaming as Observed From LWA1, NDA, and Ukrainian Radio Telescopes

Masafumi Imai, Alain Lecacheux, Tracy E. Clarke, Charles A. Higgins, Mykhaylo Panchenko, Vyacheslav V. Zakharenko, Anatolii I. Brazhenko, Anatolii V. Frantsuzenko, Oleg N. Ivantyshin, Alexandr A. Konovalenko …

Journal of Geophysical Research: Space Physics, 124(7) 5302-5316, Jul, 2019 Peer-reviewed
Evidence for low density holes in Jupiter’s ionosphere

Masafumi Imai, Ivana Kolmašová, William S. Kurth, Ondřej Santolík, George B. Hospodarsky, Donald A. Gurnett, Shannon T. Brown, Scott J. Bolton, John E. P. Connerney, Steven M. Levin

Nature Communications, 10(1), Jun, 2019 Peer-reviewed
Probing Jovian broadband kilometric radio sources tied to the ultraviolet main auroral oval with Juno

Masafumi Imai, Thomas K. Greathouse, William S Kurth, George Randall Gladstone, Corentin Kenelm Louis, Philippe Zarka, Scott J Bolton, John E. P. Connerney

Geophysical Research Letters, Jan 10, 2019 Peer-reviewed
Jupiter lightning-induced whistler and sferic events with Waves and MWR during Juno perijoves

Masafumi Imai, Ondřej Santolík, Shannon T. Brown, Ivana Kolmašová, William S. Kurth, Michael A. Janssen, George B. Hospodarsky, Donald A. Gurnett, Scott J. Bolton, Steven M. Levin

Geophysical Research Letters, Jul, 2018 Peer-reviewed
Direction-finding measurements of Jovian low-frequency radio components by Juno near Perijove 1

Masafumi Imai, William S. Kurth, George B. Hospodarsky, Scott J. Bolton, John E. P. Connerney, Steven M. Levin

Geophysical Research Letters, Jul 4, 2017 Peer-reviewed
Statistical study of latitudinal beaming of Jupiter's decametric radio emissions using Juno

Masafumi Imai, William S. Kurth, George B. Hospodarsky, Scott J. Bolton, John E. P. Connerney, Steven M. Levin

Geophysical Research Letters, May, 2017 Peer-reviewed
Analysis of Jovian low-frequency radio emissions based on stereoscopic observations with Juno and Earth-based radio telescopes

M. Imai, W. S. Kurth, G. B. Hospodarsky, S. J. Bolton, J. E. P. Connerney, S. M. Levin, P. Zarka, B. Cecconi, A. Lecacheux, L. Lamy

Planetary Radio Emissions VIII, 13-23, 2017 Peer-reviewed
Latitudinal beaming of Jovian decametric radio emissions as viewed from Juno and the Nançay Decameter Array

Masafumi Imai, William S. Kurth, George B. Hospodarsky, Scott J. Bolton, John E. P. Connerney, Steven M. Levin, Alain Lecacheux, Laurent Lamy, Philippe Zarka

Geophysical Research Letters, 2017 Peer-reviewed
Modeling Jovian hectometric attenuation lanes during the Cassini flyby of Jupiter

Masafumi Imai, Alain Lecacheux, Michel Moncuquet, Fran Bagenal, Charles A. Higgins, Kazumasa Imai, James R. Thieman

Journal of Geophysical Research: Space Physics, 120(3) 1888-1907, Mar, 2015 Peer-reviewed
Comparison between Cassini and Voyager observations of Jupiter's decametric and hectometric radio emissions

Masafumi Imai, Kazumasa Imai, Charles A. Higgins, James R. Thieman

Journal of Geophysical Research: Space Physics, 116(12), 2011 Peer-reviewed
Jupiter's decametric and hectometric radio emissions observed by Cassini RPWS and Voyager PRA

M. Imai, A. Lecacheux, K. Imai, C. A. Higgins, J. R. Thieman

Planetary Radio Emissions VII, 167-175, 2011 Peer-reviewed
Angular beaming model of Jupiter's decametric radio emissions based on Cassini RPWS data analysis

Masafumi Imai, Kazumasa Imai, Charles A. Higgins, James R. Thieman

Geophysical Research Letters, 35(17), Sep, 2008 Peer-reviewed

Misc.

Enhancing KOSEN education in space engineering through the development of KOSEN-1 and KOSEN-2 CubeSats

M. Imai, M. Wakabayashi, K. Imai, M. Tokumitsu, J. Nakaya, Y. Murakami, N. Hirakoso, T. Takada, K. Shimada

Proceedings of 15th International Symposium on Advances in Technology Education, 85-90, 2022 Lead author
Overview of Jupiter's decametric and hectometric radio emissions

M. Imai, K. Imai

Proceedings of Symposium on Planetary Science 2012, 79-84, 2013 Lead author
惑星探査機カッシーニで観測された木星デカメートル波放射ビーム構造について

今井雅文, 今井一雅

第9回惑星圏研究会集録, 東北大学大学院理学研究科惑星プラズマ・大気研究センター, 65-68, 2011 Lead author

Major Presentations

Observations of Jupiter's Auroral Radio Emissions from Juno

M. Imai, W. S. Kurth, G. B. Hospodarsky, S. J. Bolton, J. E. P. Connerney

Planetary, Solar, Radio and Heliospheric Radio Emissions (PRE) IX Conference, Sep 26, 2022 Invited
New understanding on Jupiter's lightning in the atmosphere as revealed by Juno

M, Imai, W. S. Kurth, I. Kolmasova, O. Santolik, M. H. Wong, S. T. Brown, G. B. Hospodarsky, T. Guillot, S. J. Bolton, S. M. Levin

Japan Geoscience Union Meeting 2021, Jun 4, 2021 Invited
Observing Jupiter's auroral radio sources and emissions with Juno

M. Imai, W. S. Kurth, G. B. Hospodarsky, Y. M. Martos, P. Louarn, S. J. Bolton, J. E. P. Connerney, C. K. Louis, L. Lamy, P. Zarka, T. E. Clarke, C. A. Higgins, B. Cecconi

USNC-URSI National Radio Science Meeting, Boulder, Colorado Invited
Jupiter lightning-induced electromagnetic waves from the Juno Waves investigation

M. Imai, I. Kolmasova, S. T. Brown, O. Santolik, W. S. Kurth, G. B. Hospodarsky, D. A. Gurnett, S. J. Bolton, J. E. P. Connerney, S. M. Levin

42nd COSPAR Scientific Assembly 2018, Pasadena, California Invited
Stereoscopic observations of Jupiter's decametric radio bursts with Juno, Cassini, STEREO A, WIND and Earth-based radio observatories

M. Imai, W. S. Kurth, G. B. Hospodarsky, S. J. Bolton, J. E. P. Connerney, S. M. Levin, A. Lecacheux, L. Lamy, P. Zarka, T. E. Clarke, C. A. Higgins

USNC-URSI National Radio Science Meeting, Boulder, Colorado Invited
Probing Jupiter's auroral radio sources with Juno

M. Imai, W. S. Kurth, G. B. Hospodarsky, B. Bonfond, D. Grodent, G. R. Glandstone, P. Louarn, S. J. Bolton, J. E. P. Connerney, S. M. Levin, A. Lecacheux, L. Lamy, P. Zarka, T. E. Clarke, C. A. Higgins

Science at Low Frequencies IV, Sydney, Australia Invited
Observations of Jupiter's Decametric and Hectometric Radio Emissions by Cassini/ RPWS and Voyager/PRA

M. Imai, A. Lecacheux, K. Imai, C. A. Higgins, J. R. Thieman

The XXV IUGG General Assembly Earth on the Edge: Science for a Sustainable Planet, Melbourne, Australia Invited

Teaching Experience

Apr, 2022 - Present

Circuit Theory 2 (National College of Technology, Niihama College)
Oct, 2020 - Present

Assistive Design Exercise (National Institute of Technology, Niihama College)
Oct, 2020 - Present

Electronics Seminar B (National Institute of Technology, Niihama College)
Apr, 2020 - Present

Electrical Information Practice B (National Institute of Technology, Niihama College)
Apr, 2021 - Mar, 2022

Information Science (National Institute of Technology, Niihama College)
Oct, 2020 - Feb, 2021

Electrical and Mechanical Drawing (National Institute of Technology, Niihama College)

Professional Memberships

Research Projects

全国高専宇宙工学コース設立による実践的宇宙人材育成の展開

令和5年度宇宙航空科学技術推進委託費, 宇宙航空人材育成プログラム【専門人材育成】, 文部科学省, Oct, 2023 - Mar, 2026

若林誠, 今井雅文, 今井一雅, 立川崇之, 徳光政弘, 村上幸一, 平社信人
木星周回衛星Junoの多波長データ解析から迫る木星雷研究の新展開

科学研究費助成事業若手研究, 若手研究, 日本学術振興会, Apr, 2023 - Mar, 2026

今井雅文
Research on a practical satellite development curriculum using a general-purpose satellite model starting from high school students

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), Grant-in-Aid for Scientific Research (B), Japan Society for the Promotion of Science, Apr, 2022 - Mar, 2026
伸展型八木アンテナ搭載超小型衛星によるIoTの宇宙利用拡大に応える周波数利用の効率化と共同利用促進技術の研究開発

令和5年度電波有効利用促進型研究開発, 先進的電波有効利用型フェーズI, 総務省, May, 2023 - Mar, 2024

徳光政弘, 田所敬一, 今井一雅, 高田拓, 今井雅文, 中谷淳
継続的な超小型衛星開発・運用を通した次世代の高専型宇宙人材育成

令和2年度宇宙航空科学技術推進委託費, 宇宙航空人材育成プログラム, 文部科学省, Sep, 2020 - Mar, 2023

若林誠, 今井雅文, 高田拓, 今井一雅, 北村健太郎, 池田光優, 徳光政弘, 中谷淳, 平社信人
Study on Jupiter's auroral radiation and lightning as viewed from Juno and Earth-based telescopes

Grants-in-Aid for Scientific Research, Grant-in-Aid for Research Activity Start-up, Japan Society for the Promotion of Science, Sep, 2020 - Mar, 2022

Imai Masafumi
LPWA（LoRa）モジュール搭載２Uキューブサットによる山間および情報防災データの収集技術実証

高専ワイヤレスIoTコンテスト2021, 株式会社サイバー創研, Jul, 2021 - Mar, 2022

村上幸一, 徳光政弘, 今井雅文, 梶村好宏
惑星探査機で観測された木星電波の解析と波動の生成・伝搬過程の数値シミュレーション

科学研究費助成事業特別研究員奨励費, 特別研究員奨励費, 日本学術振興会, Apr, 2013 - Mar, 2016

今井雅文

Academic Activities

Our Evolving Understanding of Auroral Physics and Magnetosphere Dynamics at Jupiter (AGU Fall Meeting 2019, San Francisco)

Planning, management, etc.

R. W. Ebert; G. B. Clark; M. Imai; S. J. Bolton, Dec, 2019 - Dec, 2019
Our Evolving Understanding of Auroral Processes and Magnetosphere Dynamics at Jupiter Through Juno and Earth-Based Observations (AGU Fall Meeting 2018, Washington D.C.)

Planning, management, etc.

R. W. Ebert; G. B. Clark; M. Imai; S. J. Bolton, Dec, 2018 - Dec, 2018
Reviewer (Astronomy & Astrophysics, Planetary Radio Emissions, Space Science Reviews, Geophysical Research Letters, Journal of Geophysical Research: Space Physics)

Peer review

Social Activities

KOSEN Space Workshop in 石鎚クライミングパークSAIJO

Lecturer, Planner, Logistic support

新居浜工業高等専門学校, Oct 22, 2023 - Oct 22, 2023
ただ今地球周回中KOSEN-1衛星からのモールス信号を受信してみよう！

Lecturer, Planner

愛媛県総合科学博物館, Dec 17, 2022 - Dec 17, 2022
イプシロンロケット6号機で高専から宇宙へ！開発者と振り返る高専連携衛星「KOSEN－2」打ち上げの瞬間！

Lecturer, Planner

あかがねミュージアム（新居浜市総合文化施設）, Oct 29, 2022 - Oct 29, 2022
高専ものづくり教育から宇宙へ

Lecturer

新居浜市生涯学習大学, 新居浜高専市民講座, Jul 16, 2022 - Jul 16, 2022
新居浜de宇宙最前線！応答せよ、KOSEN-1！モールス信号送受信体験WS&トーク

Lecturer, Planner

あかがねミュージアム（新居浜市総合文化施設）, Apr 30, 2022 - Apr 30, 2022
Jupiter Radio Observation CubeSat: KOSEN-1 Ready to Launch in October

Contributor

NASA's Radio JOVE Project, The JOVE Bulletin (https://radiojove.gsfc.nasa.gov/newsletters/2021Aug/#4), Aug, 2021 - Aug, 2021
四国de宇宙最前線！どうする、どうなる！？はやぶさ2&KOSEN-1！

Lecturer

あかがねミュージアム（新居浜市総合文化施設）, May 3, 2021 - May 3, 2021
A New Way to Visualize Radio Jove Data Using Autoplot

Contributor

NASA's Radio JOVE Project, The JOVE Bulletin (https://radiojove.gsfc.nasa.gov/library/newsletters/2018Jul/#3), Jul, 2018 - Jul, 2018
The Internet Solar Radio Observatory (ISRO)

Contributor

NASA's Radio JOVE Project, The JOVE Bulletin (https://radiojove.gsfc.nasa.gov/library/newsletters/2007Dec/index.html#6), Dec, 2007 - Dec, 2007

Media Coverage

小中生が手作りアンテナで「衛星の声」キャッチ西条で新居浜高専ワークショップ

愛媛新聞社, 愛媛新聞, Oct 27, 2023 Newspaper, magazine
超小型人工衛星新居浜高専生が全国の高専と開発

愛媛新聞社, 愛媛新聞, Nov 10, 2022 Newspaper, magazine
「革新的衛星技術実証３号機」で目指す理想の未来－海洋観測データ収集IoT技術実証衛星

YouTube: JAXA Channel, Oct 3, 2022 Internet
超小型人工衛星開発

愛媛新聞社, 愛媛新聞・時代を歩くえひめ現場ルポ, Jan 23, 2022 Newspaper, magazine
高専の宇宙開発人材育成を支え、親子2代でつなぐ木星電波の研究

メディア総研株式会社, 月刊高専, Aug 26, 2021 Internet

Profile Information

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Major Awards

Major Papers

Misc.

Major Presentations

Teaching Experience

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Research Projects

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