S. Hiruma and H. Igarashi, "Fast 3-D Analysis of Eddy Current in Litz Wire Using Integral Equation," in IEEE Transactions on Magnetics, vol. 53, no. 6, pp. 1-4, June 2017, Art no. 7000704, doi: 10.1109/TMAG.2017.2658679.
S. Hiruma, Y. Otomo and H. Igarashi, "Eddy Current Analysis of Litz Wire Using Homogenization-Based FEM in Conjunction With Integral Equation," in IEEE Transactions on Magnetics, vol. 54, no. 3, pp. 1-4, March 2018, Art no. 7001404, doi: 10.1109/TMAG.2017.2772335.
S. Hiruma, H. Igarashi, "Fast computation of copper and iron losses using model order reduction," IJAEM, DOI:10.3233/JAE-191107, p.1-8, 2019.
S. Hiruma and H. Igarashi, "Homogenization Method Based on Cauer Circuit via Unit Cell Approach," in IEEE Transactions on Magnetics, vol. 56, no. 2, pp. 1-5, Feb. 2020, Art no. 7505805, doi: 10.1109/TMAG.2019.2946402.
S. Hiruma and H. Igarashi, "Time-Domain Analysis of Homogenized Finite-Element Method for Eddy Current Analysis With Reduced Unknown Variables," in IEEE Transactions on Magnetics, vol. 56, no. 1, pp. 1-4, Jan. 2020, Art no. 7501604, doi: 10.1109/TMAG.2019.2948886.
S. Hiruma and H. Igarashi, "Model Order Reduction for Linear Time-Invariant System With Symmetric Positive-Definite Matrices: Synthesis of Cauer-Equivalent Circuit," in IEEE Transactions on Magnetics, vol. 56, no. 3, pp. 1-8, March 2020, Art no. 7400608, doi: 10.1109/TMAG.2019.2962665.
S. Hiruma, H. Igarashi, "Synthesis of Equivalent Circuit from Homogenized FE Equation using Model Order Reduction," 電気学会論文誌B（電力・エネルギー部門誌）, vol. 140, no. 2．
S. Fujita, S. Hiruma and H. Igarashi, "Time-Domain Analysis of Magnetically Shielded Wire Coils Using Homogenized Finite-Element Method," in IEEE Transactions on Magnetics, vol. 56, no. 2, pp. 1-4, Feb. 2020, Art no. 7506504, doi: 10.1109/TMAG.2019.2950497.
S. Hiruma, M. Ohtani, S. Soma, Y. Kubota and H. Igarashi, "Novel Hybridization of Parameter and Topology Optimizations: Application to Permanent Magnet Motor," in IEEE Transactions on Magnetics, vol. 57, no. 7, pp. 1-4, July 2021, Art no. 8204604, doi: 10.1109/TMAG.2021.3078435.
S. Hiruma and H. Igarashi, "Fast Time-Domain Analysis of Darwin Model of Maxwell’s Equations using Arnoldi-based Model Order Reduction," in IEEE Transactions on Magnetics, doi: 10.1109/TMAG.2022.3163569. (early accept)
S. Hiruma, S. Clénet, H. Igarashi and T. Henneron, "Error Estimator for Cauer Ladder Network Representation," in IEEE Transactions on Magnetics, doi: 10.1109/TMAG.2022.3165943. (early accept)
Y. Sato, S. Hiruma, H. Igarashi and H. Matsumoto, "Time-Domain Homogenized Finite Eddy Current Analysis Using Recursive Convolution Method," IEEE Transactions on Magnetics, vol. 59, no. 5, Art no. 7400904, May 2023. (IF 2.1)
H. Nagamine, S. Hiruma, T. Mifune and T. Matsuo, "Error Estimation of the Cauer Ladder Network Method Based on Eigenfunction Expansion," IEEE Transactions on Magnetics, vol. 59, no. 5, Art no. 7001604, May 2023. (IF 2.1)
S. Hiruma, "Extended Finite Element Method for Calculation of Eddy Currents at High Frequencies," IEEE Transactions on Magnetics, vol. 59, no. 5, Art no. 7401004, May 2023. (IF 2.1)
H. Nagamine, S. Hiruma, T. Mifune and T. Matsuo, "Henrici–Pflüger-Type Error Estimators for the Cauer Ladder Network Representation," IEEE Transactions on Magnetics, vol. 60, no. 3, Art no. 7200404, Mar. 2024. (IF 2.1)
S. Hiruma, "Extended Finite Element Method Enhanced by Exact Boundary Representation for Analysis of Eddy Currents," IEEE Transactions on Magnetics, vol. 60, no. 3, Art no. 7400704, Mar. 2024. (IF 2.1)
T. Matsuo, T. Ozeki, S. Hiruma and T. Mifune, "Port Reduction of Multiport Cauer Ladder Network," IEEE Transactions on Magnetics, vol. 60, no. 3, Art no. 7200704, Mar. 2024. (IF 2.1)
H. Nagamine, S. Hiruma, T. Mifune and T. Matsuo, "Truncation Error Formula for Multi-Port Cauer Ladder Networks,” IEEE Transactions on Magnetics, accepted. (IF 2.1)
H. Sato, S. Hiruma and H. Igarashi, "Multi-material Topology Optimization of Permanent Magnet Motor with Arbitrary Adjacency Relationship of Materials," 2020 IEEE 19th Biennial Conference on Electromagnetic Field Computation (CEFC), 2020, pp. 1-4, doi: 10.1109/CEFC46938.2020.9451380.
S. Hiruma, H. Igarashi, "Fast Three-dimensional Analysis of Eddy Currents in Litz Wire Using Integral Equation," CEFC2016, TP022, Miami, USA, November 2016.
S. Hiruma, H. Igarashi, "Eddy Current Analysis of Litz Wire Using Homogenization-based FEM in Conjunction with Integral Equation," Compumag2017, PA-M1-6, Daejeon, Korea, June 2017.
S. Hiruma, H. Igarashi, "Fast Computation of Copper and Iron Losses Using Model Order Reduction," OIPE2018, OS4, Hall in Tirol, Austria, September 2018.
S. Hiruma, H. Igarashi, "Homogenization Based on Continued Fraction: Application to Magnetic field Analysis," JSST2018, OS2, Muroran, Japan, September 2018.
S. Hiruma, H. Igarashi, "Synthesis of Equivalent Circuit from Homogenized FE equation via Model Order Reduction," CEFC2018, MBP2, Hangzhou, China, October 2018.
S. Hiruma, H. Igarashi, "Homogenization Method Based on Cauer circuit via Unit Cell Approach," Compumag2019, PB-A3-15, Paris, France, July, 2019.
S. Hiruma, H. Igarashi, "Time Domain Analysis of Homogenized Finite Element Method for Eddy Current Analysis with Reduced Unknown Variables," Compumag2019, PC-M2-10, Paris, France, July, 2019.
W. She, S. Hiruma, H. Igarashi, "Efficient and Accurate Iron Loss Computation of Permanent-Magnet Synchronous Motors Using Behavior Model," JSST2019, pp. 260-263, Miyazaki, Japan, Nov., 2019.
H. Sato, S. Hiruma, H. Igarashi, "Multi-Phase Topology Optimization Using Radial Basis Function for Design of Permanent Magnet Motor," JSST2019, pp. 231-234, Miyazaki, Japan, Nov., 2019.
S. Hiruma, M. Ohtani, S. Soma, Y. Kubota and H. Igarashi, "Novel Hybridization of Parameter and Topology Optimizations: Application to Permanent Magnet Motor," CEFC, 2020 (online).
S. Hiruma and H. Igarashi, "Fast Time-Domain Analysis of Darwin Model of Maxwell’s Equations using Arnoldi-based Model Order Reduction", Compumag2021, online, January, 2022.
S. Hiruma, S. Clénet, H. Igarashi and T. Henneron, "Error Estimator for Cauer Ladder Network Representation," Compumag2021, online, January, 2022.
比留間真悟，藤田祥伍，五十嵐一，「複素透磁率を用いた積分方程式：導体細線の解析」，電気学会静止器回転機合同研究会，SA-16-060,RM-16-106，沖縄，9月，2016.
S. Hiruma, H. Igarashi, "On the model order reduction using self-adjoint Lanczos algorithm," 平成29年電気学会 電子・情報・システム部門大会, SS2-4, 香川, 9月, 2017年.
比留間真悟，五十嵐一，「マクロ透磁率を含む系の等価回路合成」，電気学会静止器回転機合同研究会，SA-17-064, RM-17-095，佐賀，9月，2017．
比留間真悟，五十嵐一 ，「自己随伴Lanczos法を用いた伝達関数の連分数近似」，電気・情報関係学会北海道支部連合大会，10，函館，10月，2017．
比留間真悟，五十嵐一，「直交多項式のStieltjes連分数解析」，電気学会静止器回転機合同研究会，SA-18-013，RM-18-013，東京，1月，2018．
比留間真悟，五十嵐一，「均質化有限要素解析による時間領域解析ー単位セル複素透磁率の連分数表示」，電気学会静止器回転機合同研究会，SA-18-063，RM-18-082，三重，8月，2018．
比留間真悟，五十嵐一，「伝達関数のStieltjes連分数展開による電磁機器の等価回路生成」，平成30年電気学会 電子・情報・システム部門大会，MC73，北海道，9月，2018年．
比留間真悟，五十嵐一，「準静電磁界の連分数表現」，非線形問題の解法と可視化に関する研究会，岐阜，1月23日，2019年．
比留間真悟，五十嵐一，「均質化有限要素解析による時間領域解析ーコイル巻線渦電流損失への適用」，電気学会静止器回転機合同研究会，SA-19-005，RM-19-005，岡山，3月5日，2019年．
佐藤駿輔，比留間真悟，五十嵐一，IPMモータの複数材料トポロジー最適化，2019年電気学会電子・情報・システム部門大会，PS3-6，沖縄，9月，2019．
比留間真悟，五十嵐一，「複素透磁率を用いた変圧器巻線の漏れインピーダンスの回路表現法の提案」，電気学会全国大会，5-123,東京，3月，2020年．
比留間真悟，五十嵐一，「渦電流と寄生容量を考慮した準定常場解析の基礎検討」, 静止器回転機合同研究会, SA-20-048，RM-20-072，online，9月，2020年．
比留間真悟，五十嵐一，「渦電流と寄生容量を考慮した準定常場解析の基礎検討（その2）」, 静止器回転機合同研究会，SA-21-008，RM-21-007，online，3月，2021年．
比留間真悟，「Darwin近似Maxwell方程式のモデル縮約法の精度に関する検討」, 静止器回転機合同研究会，SA-21-054，RM-21-075，online，9月，2021年．
長嶺英朗，比留間真悟，美舩健，松尾哲司，「固有関数展開を用いたCauer Ladder Network法の誤差解析に関する一検討」，静止器回転機合同研究会，SA-22-008，RM-21-008，online，3月，2022年．
比留間真悟，松尾哲司，「CLN法のための誤差評価手法の数理的背景に関する考察」，静止器回転機合同研究会，SA-22-009，RM-21-009，online，3月，2022年．
五十嵐一，比留間真悟，「モデル縮約法を用いた準静電磁界の等価回路表示について」，数理解析研究所共同利用事業「諸科学分野を結ぶ基礎学問としての数値解析学」，2019年11月8日．
H. Igarashi, Y. Sato, S. Fujita, S. Hiruma, Y. Otomo, “Homogenization and Model Order Reduction for Fast FE Analysis,” International Compumag Society News Letter, vol. 24, no. 1, pp. 3-14, 2017.
五十嵐一，比留間真悟，佐藤駿輔，「パワーインダクタのシミュレーション技術－均質化法とモデル縮約」，まぐね/Magnetics Jpn, vol. 15, no.3, 2020.
比留間真悟，「優秀論文発表A賞」受賞，一般社団法人 電気学会，2017年1月．
比留間真悟，「電気学会北海道支部賞」受賞，一般社団法人 電気学会，2017年3月．
比留間真悟，「 The Rita Trowbridge Prize 2017 Commendation as one of the three finalists in the category for the Best Paper presented by a young researcher」受賞，Compumag2017，2017年6月．
比留間真悟，「精密工学会北海道支部学生奨励賞」一般社団法人 精密工学会，2019年3月．
比留間真悟，「Encouragement Award」一般社団法人 日本シミュレーション学会(JSST2019)．
比留間真悟，「Student Presentation Award」一般社団法人 シミュレーション学会(JSST2018)．
比留間真悟，「電気学会電子・情報・システム部門大会 奨励賞」一般社団法人 電気学会(平成30年電子・情報・システム部門大会)．
均質化された電磁機器の低次元モデル生成による高速時間応答解析法の開発 ，日本学術振興会 科学研究費助成事業 特別研究員奨励費 2019年4月 - 2022年3月．
高周波インダクタのための渦電流と寄生容量を考慮した非線形低次元モデルの開発 ，日本学術振興会 科学研究費助成事業 若手研究 2022年4月 - 2024年3月．