Hirano Laboratory Fujita Health University

Publications

Peer-reviewed Journal Articles38 items

  1. Yusuke Hata, Seiji Hama, Akane Hamago, Shizuko Kiregawa, Yuki Sato, Ziqiang Xu, Akira Furui, Zu Soh, Harutoyo Hirano, Stephanie Sutoko, Tomohiko Mizuguchi, Akihiko Kandori, Takao Hamamoto, Sachio Takeno, Shigeto Yamawaki, Toshio Tsuji. Machine Learning-Based Analysis of the Relationship Between Brain Lesion Sites and Swallowing and Cognitive Functions in Stroke Patients. Scientific Reports. 2026; 16: Article number 22029 Link

  2. Naoki Hagiyama, Akira Furui, Harutoyo Hirano, Toshio Tsuji. Capturing non-Gaussianity of RR interval distributions based on Gaussian scale mixture representation. Heliyon. 2026; 12(6): e44737 Link

  3. Harutoyo Hirano, Shun Takahashi, Tetsuya Kamei, Makoto Hibiya. Estimation of Hemoglobin Concentration at the Initiation of Cardiopulmonary Bypass Using Support Vector Regression. Journal of ExtraCorporeal Technology. 2026; 58(2): 128–138 Link

  4. Ziqiang Xu, Zu Soh, Yuta Kurota, Yuya Kimura, Harutoyo Hirano, Takafumi Sasaoka, Atsuo Yoshino and Toshio Tsuji. Neuroimaging-based evidence for sympathetic correlation between brain activity and peripheral vasomotion during pain anticipation. Scientific Reports. 2024; 14, Article number: 3383 Link

  5. Ziqiang Xu, Reiji Anai, Harutoyo Hirano, Zu Soh and Toshio Tsuji. Noninvasive Characterization of Peripheral Sympathetic Activation across Sensory Stimuli Using a Peripheral Arterial Stiffness Index. Frontiers in Physiology, section Computational Physiology and Medicine. 2024; 14: 1294239 Link

  6. Genta Tabuchi, Akira Furui, Seiji Hama, Akiko Yanagawa, Koji Shimonaga, Ziqiang Xu, Zu Soh, Harutoyo Hirano and Toshio Tsuji. Motor-cognitive functions required for driving in post-stroke individuals identified via machine-learning analysis. Journal of NeuroEngineering and Rehabilitation. 2023; 20: Article number: 139 Link

  7. Ryuki Shigemasu, Yuki Teraoka, Satoshi Ota, Harutoyo Hirano, Keita Yasutomi, Shoji Kawahito, Masato Futagawa. Development of a Current Injection—Type Impedance Measurement System for Monitoring Soil Water Content and Ion Concentration. Sensors. 2022; 22(9): 3509 Link

  8. Seiya Tanaka, Satoshi Ota, Harutoyo Hirano, Masato Futagawa, Yasushi Takemura. Evaluation of Harmonic Signals Derived From Multiple Spatially Separated Samples for Magnetic Particle Imaging. IEEE Transactions on Magnetics. 2022; 58(8): 1-5, Art no. 6501005 Link

  9. Seiichi Ohkawara, Kentaro Miura, Harutoyo Hirano, Satoshi Ota, Masato Futagawa. Evaluation of a Hydrogen Signal Detection Method Using a Compact NMR Sensor for the Measurement of Ion Concentrations in Culture Medium. IEEJ Transactions on Sensors and Micromachines. 2021; 141(11): 367-372 (in Japanese) Link

  10. Satoshi Ota, Seiichi Ohkawara, Harutoyo Hirano, Masato Futagawa, Yasushi Takemura. Empirical and simulated evaluations of easy-axis dynamics of magnetic nanoparticles based on their magnetization response in alternating magnetic field. Journal of Magnetism and Magnetic Materials. 2021; 539: Article number 168354 Link

  11. Satoshi Kamiya, Ryuji Nakamura, Noboru Saeki, Takashi Kondo, Hirotsugu Miyoshi, Soushi Narasaki, Atsushi Morio, Masashi Kawamoto, Harutoyo Hirano, Toshio Tsuji, Yasuo M. Tsutsumi. Prediction of blood pressure change during surgical incision under opioid analgesia using sympathetic response evoking threshold. Scientific Reports. 2021; 11: Article number 9558 Link

  12. Toshifumi Muneyasu, Harutoyo Hirano, Akira Furui, Zu Soh, Ryuji Nakamura, Noboru Saeki, Yoshiyuki Okada, Masashi Kawamoto, Masao Yoshizumi, Atsuo Yoshino, Takafumi Sasaoka, Shigeto Yamawaki, Toshio Tsuji. Cardiorespiratory synchronisation and systolic blood pressure correlation of peripheral arterial stiffness during endoscopic thoracic sympathectomy. Scientific Reports. 2021; 11: Article number 5966 Link

  13. Toshio Tsuji, Fumiya Arikuni, Takafumi Sasaoka, Shin Suyama, Takashi Akiyoshi, Zu Soh, Harutoyo Hirano, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Masao Yoshizumi, Atsuo Yoshino, Shigeto Yamawaki. Peripheral arterial stiffness during electrocutaneous stimulation is positively correlated with pain-related brain activity and subjective pain intensity: an fMRI study. Scientific Reports. 2021; 11: Article number 4425 Link

  14. Seiji Hama, Kazumasa Yoshimura, Akiko Yanagawa, Koji Shimonaga, Akira Furui, Zu Soh, Shinya Nishino, Harutoyo Hirano, Shigeto Yamawaki, Toshio Tsuji. Relationships between motor and cognitive functions and subsequent post-stroke mood disorders revealed by machine learning analysis. Scientific Reports. 2020; 10: Article number 19571 Link

  15. Toshio Tsuji, Tomonori Nobukawa, Akihisa Mito, Harutoyo Hirano, Zu Soh, Ryota Inokuchi, Etsunori Fujita, Yumi Ogura, Shigehiko Kaneko, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Masao Yoshizumi. Recurrent probabilistic neural network-based short-term prediction for acute hypotension and ventricular fibrillation. Scientific Reports. 2020; 10: Article number 11970 Link

  16. Naoki Hagiyama, Harutoyo Hirano, Akihisa Mito, Zu Soh, Etsunori Fujita, Yumi Ogura, Shigehiko Kaneko, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Masao Yoshizumi, Toshio Tsuji. Unconstrained Vital Sign Monitoring System Using an Aortic Pulse Wave Sensor. Scientific Reports. 2019; 9: Article number 17475 Link

  17. Hiroshi Tanaka, Akihisa Mito, Harutoyo Hirano, Zu Soh, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Yukihito Higashi, Masao Yoshizumi, Toshio Tsuji. Estimation of Arterial Viscosity Based on an Oscillometric Method and Its Application in Evaluating the Vascular Endothelial Function. Scientific Reports. 2019; 9: Article number 2609 Link

  18. Harutoyo Hirano, Yusuke Isomura, Masato Futagawa. Monitoring System with Multimodal Sensor for Electrical Conductivity and Hydrogen-ion Concentration of Causative Agents of Underarm Odor. Journal of Translational Science. 2018; 5(5) Link

  19. Harutoyo Hirano, Renjo Takama, Ryo Matsumoto, Hiroshi Tanaka, Hiroki Hirano, Zu Soh, Teiji Ukawa, Tsuneo Takayanagi, Haruka Morimoto, Ryuji Nakamura, Noboru Saeki, Haruki Hashimoto, Shogo Matsui, Shinji Kishimoto, Nozomu Oda, Masato Kajikawa, Tatsuya Maruhashi, Masashi Kawamoto, Masao Yoshizumi, Yukihito Higashi, Toshio Tsuji. Assessment of Lower-limb Vascular Endothelial Function Based on Enclosed Zone Flow-mediated Dilation. Scientific Reports. 2018; 8: Article number: 9263 Link

  20. Masato Futagawa, Keisuke Uemura, Kumiko Nomiyama, Harutoyo Hirano, Minoru Watanabe, Mitsuru Komatsu. Study of a Semiconductor Type pH Sensor to Measure Low Water Content Soils in Real-time. IEEJ Transactions on Sensors and Micromachines. 2018; 138(9): 417-422 (in Japanese) Link

  21. Elbegzaya Sukhdorj, Ryuji Nakamura, Noboru Saeki, Kensuke Yanabe, Hiroki Hirano, Harutoyo Hirano, Masao Yoshizumi, Toshio Tsuji, Masashi Kawamoto. Response of Arterial Mechanical Impedance to Different Concentrations of Remifentanil during Abdominal Laparoscopic Colectomy. Hiroshima Journal of Medical Sciences. 2018; 67(3): 55-61 Link

  22. Kensuke Yanabe, Ryuji Nakamura, Noboru Saeki, Elbegzaya Sukhdorj, Abdugheni Kutluk, Hiroki Hirano, Harutoyo Hirano, Masao Yoshizumi, Toshio Tsuji, Masashi Kawamoto. A new arterial mechanical property indicator reflecting differences in invasive stimulus intensity induced by alteration of remifentanil concentration during laryngoscopy. Minerva Anestesiologica. 2018; 84(3): 311-318 Link

  23. Hiroki Matsubara, Hiroki Hirano, Harutoyo Hirano, Zu Soh, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Masao Yoshizumi, Atsuo Yoshino, Takafumi Sasaoka, Shigeto Yamawaki, and Toshio Tsuji. Quantitative Evaluation of Pain during Electrocutaneous Stimulation using a Log-Linearized Peripheral Arterial Viscoelastic Model. Scientific Reports. 2018; 8: Article number: 3091 Link

  24. Masato Futagawa, Shin Ogasahara, Tatsumi Ito, Mitsuru Komatsu, Yasushi Fuwa, Harutoyo Hirano, Ippei Akita, Kenichiro Kusano, Minoru Watanabe. Fabrication of a low leakage current type impedance sensor with shielding structures to detect a low water content of soil for slope failure prognostics. Sensors and Actuators A: Physical. 2018; 271: 383-388 Link

  25. Nozomu Oda, Tatsuya Maruhashi, Shinji Kishimoto, Masato Kajikawa, Yumiko Iwamoto, Akimichi Iwamoto, Shogo Matsui, Takayuki Hidaka, Yasuki Kihara, Kazuaki Chayama, Chikara Goto, Yoshiki Aibara, Ayumu Nakashima, Kensuke Noma, Harutoyo Hirano, Yukihito Higashi. Relation of the Bilateral Earlobe Crease to Endothelial Dysfunction. American Journal of Cardiology. 2017; 119(12): 1983-1988 Link

  26. Elbegzaya Sukhdorj, Ryuji Nakamura, Noboru Saeki, Kensuke Yanabe, Abdugheni Kutluk, Hiroki Hirano, Harutoyo Hirano, Toshio Tsuji, Masashi Kawamoto. Alteration of Arterial Mechanical Impedance Greater than that of Photoplethysmogram and Laser Doppler Flowmetry during Endoscopic Thoracic Sympathectomy. Journal of Medical and Biological Engineering. 2017; 37(6): 820–825 Link

  27. Haruka Morimoto, Masato Kajikawa, Nozomu Oda, Naomi Idei, Harutoyo Hirano, Eisuke Hida, Tatsuya Maruhashi, Yumiko Iwamoto, Shinji Kishimoto, Shogo Matsui, Yoshiki Aibara, Takayuki Hidaka, Yasuki Kihara, Kazuaki Chayama, Chikara Goto, Kensuke Noma, Ayumu Nakashima, Teiji Ukawa, Toshio Tsuji, Yukihito Higashi. Endothelial Function Assessed by Automatic Measurement of Enclosed Zone Flow-mediated Vasodilation Using an Oscillometric Method Is an Independent Predictor of Cardiovascular Events. Journal of the American Heart Association. 2016; 5(12): e004385 Link

  28. Kohei Eguchi, Hideaki Kashima, Akiko Yokota, Kohei Miura, Masako Yamaoka (Endo), Harutoyo Hirano, Toshio Tsuji, Yoshiyuki Fukuba. Acute effect of oral sensation of sweetness on celiac artery blood flow and gastric myoelectrical activity in humans. Autonomic Neuroscience: Basic and Clinical. 2016; 197: 41-45 Link

  29. Hiroki Hirano, Masafumi Ito, Takuyuki Endo, Hideaki Hayashi, Harutoyo Hirano, Yuichi Kurita, Saburo Sakoda, Toshio Tsuji. A diagnostic support method for evaluating autonomic nervous function of patients with Parkinson's disease using a head-up tilt test. Iryou kikigaku (The Japanese journal of medical instrumentation). 2015; 85(6): 569-576 (in Japanese) Link

    Japanese Society of Medical Instrumentation, Best Paper Award (FY2015)

  30. Hiroki Matsubara, Hiroki Hirano, Harutoyo Hirano, Genki Matsuoka, Yuichi Kurita, Teiji Ukawa, Ryuji Nakamura, Noboru Saeki, Masao Yoshizumi, Masashi Kawamoto, Toshio Tsuji. Quantification of Sympathetic Nervous Activity Based on Log-linearized Peripheral Arterial Viscoelastic Model and Its Application to Objective Assessment of Pain during Electrocutaneous Stimulation. Transactions of the Society of Instrument and Control Engineers. 2015; 51(9): 627-633 (in Japanese) Link

  31. Daisuke Kihara, Harutoyo Hirano, Hiroki Hirano, Yuichi Kurita, Teiji Ukawa, Tsuneo Takayanagi, Haruka Morimoto, Ryuji Nakamura, Noboru Saeki, Yukihito Higashi, Masashi Kawamoto, Masao Yoshizumi, Toshio Tsuji. Estimation of Arterial Viscoelastic Properties during the Flow-mediated Dilation Test. Transactions of the Society of Instrument and Control Engineers. 2013; 49(11): 1029-1036 (in Japanese) Link

  32. Harutoyo Hirano, Tomohiro Fukuchi, Yuichi Kurita, Akihiko Kandori, Yuko Sano, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Masao Yoshizumi, Toshio Tsuji. Development of a Palpable Carotid Pulse Pressure Sensor Using Electromagnetic Induction. IEEJ Transactions on Electronics, Information and Systems. 2012; 132(12): 1934-1942 (in Japanese) Link

  33. Hiroki Hirano, Tetsuya Horiuchi, Harutoyo Hirano, Yuichi Kurita, Teiji Ukawa, Ryuji Nakamura, Noboru Saeki, Masao Yoshizumi, Masashi Kawamoto, Toshio Tsuji. A Log-linearized Peripheral Arterial Viscoelastic Index and Its Application to Endoscopic Thoracic Sympathectomy. Transactions of the Society of Instrument and Control Engineers. 2012; 48(11): 731-739 (in Japanese) Link

  34. Tetsuya Horiuchi, Abdugheni Kutluk, Harutoyo Hirano, Yuichi Kurita, Toshio Tsuji, Teiji Ukawa, Ryuji Nakamura, Noboru Saeki, Yukihito Higashi, Masashi Kawamoto, Masao Yoshizumi. A Log-linearized Arterial Viscoelastic Index and Its Application to Carotid Ultrasonography. Transactions of the Society of Instrument and Control Engineers. 2012; 48(9): 563-570 (in Japanese) Link

  35. Toshio Tsuji, Teiji Ukawa, Ryosuke Kubo, Harutoyo Hirano, Yuichi Kurita, Tsuneo Takayanagi, Haruka Morimoto, Naomi Idei, Yukihito Higashi, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Masao Yoshizumi. Noninvasive Evaluation of Endothelial Function Based on Dilation Rate of Integrated Air-Cuff Plethysmogram. Iryou kikigaku (The Japanese journal of medical instrumentation). 2012; 82(3): 259-266 (in Japanese) Link

    Japanese Society of Medical Instrumentation, Best Paper Award (FY2012)

  36. Harutoyo Hirano, Hiromi Maruyama, Abdugheni Kutluk, Toshio Tsuji, Osamu Fukuda, Naohiro Ueno, Teiji Ukawa, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, and Masao Yoshizumi. Noninvasive Estimation of Arterial Viscoelastic Indices Using a Foil-type Flexible Pressure Sensor and a Photoplethysmogram. International Journal on Electrical Engineering and Informatics. 2011; 3(4): 498-515 Link

  37. Hiromi Maruyama, Harutoyo Hirano, Abdugheni Kutluk, Toshio Tsuji, Osamu Fukuda, Naohiro Ueno, Teiji Ukawa, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Masao Yoshizumi. Noninvasive Monitoring of Arterial Viscoelastic Indices Using a Foil-type Pressure Sensor. IEEJ Transactions on Electronics, Information and Systems. 2011; 131(9): 1518-1527 (in Japanese) Link

  38. Kenji Shiba, Akira Morimasa, Harutoyo Hirano. Design and Development of Low-Loss Transformer for Powering Small Implantable Medical Devices. IEEE Transactions on Biomedical Circuits and Systems. 2010; 4(2): 77-85 Link

International Conferences24 items

  1. Keitaro Nonaka, Shumma Jomyo, Hideki Aiko, Shuichi Tasaka, Harutoyo Hirano, Toshio Tsuji, “Heart Rate Measurement using an Earphone-Type Wearable Device Equipped with Biodegradable Piezoelectric Sensors”, Proceedings of the 2026 IEEE/SICE International Symposium on System Integration (SII 2026), pp. 1174-1179, Cancun, Mexico, January 11-14, 2026. Link

  2. Shun Takahashi, Harutoyo Hirano, Makoto Hibiya, “Multilayer Perceptron-based Model for Estimating Hemoglobin Concentration at Initiation of Cardiopulmonary Bypass”, Japanese Journal of Extra-Corporeal Technology (Abstract on The 4th Meeting of Federation of Asia Perfusion Society (FAPS)), Vol. 52, No. 3, p. 540, Tokyo, Japan, October 12, 2025.

  3. Harutoyo Hirano, Haruki Goto, Satoshi Ota, Masato Futagawa, Yu Hashimoto, Haruki Hashimoto, Shinji Kishimoto, Nozomu Oda, Masato Kajikawa, Tatsuya Maruhashi, and Yukihito Higashi, “Convolutional Neural Network-Based Assessment Method for Atherosclerosis Using Earlobe Crease Images”, Proceedings of 2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), p. 2882, Scottish Event Campus, Glasgow, UK, July 11-15, 2022

  4. Seiya Tanaka, Harutoyo Hirano, Masato Futagawa, Yasushi Takemura, Satoshi Ota, “Evaluation of harmonic signals derived from separately located multiple samples for magnetic particle imaging”, The 15th Joint MMM-INTERMAG Conference (2022 Joint), IPB-17, New Orleans, LA/ondemand, January 10-14, 2022

  5. Keita Honda, Kosuke Shimizu, Harutoyo Hirano, Masato Futagawa, Yasushi Takemura, Satoshi Ota, “Investigation of magnetic relaxation of intratumor magnetic nanoparticles for hyperthermia”, The 15th Joint MMM-INTERMAG Conference (2022 Joint), IPE-21, New Orleans, LA/ondemand, January 10-14, 2022

  6. Akihisa Mito, Harutoyo Hirano, Naoki Hagiyama, Zu Soh, Etsunori Fujita, Yumi Ogura, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Masao Yoshizumi, Toshio Tsuji, “Unconstrained Monitoring of Pulse Pressure Waves from the Surface of the Subject’s Back”, Proceedings of the SICE Annual Conference 2019, pp. 39-44, Hiroshima, Japan, September 10-13, 2019 Link

    Young Author’s Award

  7. Masato Futagawa, Keisuke Uemura, Ryuta Oishi, Satoshi Ota, Harutoyo Hirano, “Fabrication of a Stripe-Gate Type pH Sensor for Inhibition of Drift in pH Measurement for Long-Term Soil Monitoring”, The 20th International Conference on Solid-State Sensors, Actuators and Microsystems and EUROSENSORS XXXIII, W3P.035, Berlin, Germany, June 23 – 27, 2019 Link

  8. Harutoyo Hirano, Yusuke Isomura, Masato Futagawa, “Monitoring System for Causative Substance of Underarm Odor Using a Multimodal Sensor”, The Second Annual IEEE Life Sciences Conference, paper ID: 3023, La Plaza, Montréal, Quebec, Canada, October 28-30, 2018.

  9. Harutoyo Hirano, Daichi Uematsu, Masato Futagawa, Toshio Tsuji, Haruki Hashimoto, Shinji Kishimoto, Nozomu Oda, Masato Kajikawa, Tatsuya Maruhashi, Yukihito Higashi, “Depth Extraction System for Earlobe Crease to Support Diagnosis of Arteriosclerosis”, 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Paper WePoS-29.10, No. W-0257, Hawaii Convention Center, Honolulu, HI, USA, July 17-21, 2018. Link

  10. Naoki Hagiyama, Akihisa Mito, Harutoyo Hirano, Zu Soh, Etsunori Fujita, Yumi Ogura, Ryuichi Uchikawa, Shigehiko Kaneko, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Masao Yoshizumi, Toshio Tsuji, “Unconstrained Monitoring of Biological Signals Using an Aortic Pulse Wave Sensor”, Proceedings of the 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Paper FrPoS-19.3, pp. 4327-4330, Hawaii Convention Center, Honolulu, HI, USA, July 17-21, 2018. Link

  11. Masato Kajikawa, Haruka Morimoto, Nozomu Oda, Naomi Idei, Harutoyo Hirano, Tatsuya Maruhashi, Shinji Kishimoto, Shogo Matsui, Takayuki Hidaka, Farina B Yusoff, Yasuki Kihara, Kensuke Noma, Ayumu Nakashima, Teiji Ukawa, Toshio Tsuji, and Yukihito Higashi: Endothelial Function Measured by Enclosed Zone Flow-mediated Vasodilation Predicts Cardiovascular Events. Circulation. 2017; 136(Suppl 1): Abstract 11698 Link

  12. Masato Futagawa, Shin Ogasahara, Tatsumi Ito, Mitsuru Komatsu, Yasushi Fuwa, Harutoyo Hirano, Ippei Akita, Kenichiro Kusano, Minoru Watanabe, “Fabrication of a Low Leakage Current Type Impedance Sensor to Monitor Soil Water Content for Slope Failure Prognostics”, The 19th International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers 2017), W3P-009, pp. 1136-1139, Kaohsiung Exhibition Center, Qianzhen District Kaohsiung, Taiwan, June 18-22, 2017. Link

  13. Kensuke Yanabe, Ryuji Nakamura, Noboru Saeki, Sukhdorj Elbegzaya, Abdugheni Kutluk, Hiroki Hirano, Harutoyo Hirano, Masao Yoshizumi, Toshio Tsuji, Masashi Kawamoto, “New Arterial Mechanical Property Indicator Can Reflect Differences in Invasive Stimulus Intensity Induced By Alteration of Remifentanil Concentration During Laryngoscopy”, Anesthesia & Analgesia, Vol. 123, Issue 3S_Suppl, pp. 793-794, Hong Kong, China, August 28 -September 2, 2016. Link

  14. Elbegzaya Sukhdorj, Ryuji Nakamura, Noboru Saeki, Kensuke Yanabe, Abdugheni Kutluk, Hiroki Hirano, Harutoyo Hirano, Masao Yoshizumi, Toshio Tsuji, Masashi Kawamoto, “Response of Arterial Mechanical Impedance to Change in Remifentanil Plasma Concentration During Abdominal Laparoscopic Surgery”, Anesthesia & Analgesia, Vol. 123, Issue 3S_Suppl, pp. 789-790, Hong Kong, China, August 28 – September. 2, 2016. Link

  15. Harutoyo Hirano, Ryosuke Katsumata, Masato Futagawa, Toshio Tsuji, Shinji Kishimoto, Nozomu Oda, Masato Kajikawa, Tatsuya Maruhashi, Yukihito Higashi, “Development of an Earlobe Crease Identification System to Support Diagnosis of Arteriosclerosis”, Proceedings of the 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, pp. 2374-2377, Orlando, FL, USA, August 16-20, 2016. Link

  16. Masato Futagawa, Takaya Ozawa, Harutoyo Hirano, Tiejun Zhao, Akimasa Nakano, Kazuaki Sawada, “Development of a Pulse Input Type Potassium Sensor for Monitoring Nutrient Concentration in Agriculture”, Asia-Pacific Conference of Transducers and Micro-Nano Technology 2016 (APCOT2016), T.28, pp. 317-318, Kanazawa Bunka Hall, Kanazawa, Japan, June 26-29, 2016.

  17. Harutoyo Hirano, Tomohiro Fukuchi, Zu Soh, Yuichi Kurita, Akihiko Kandori, Yuko Sano, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Masao Yoshizumi, and Toshio Tsuji, “Development of a Continuous Sphygmomanometer Using Electromagnetic Induction”, 2014 IEEE Biomedical Circuit and System Conference Proceedings, pp. 444-447, The Swiss Tech Convention Center, EPFL, Lausanne, Switzerland, October 22-24, 2014. Link

  18. Harutoyo Hirano, Daisuke Kihara, Hiroki Hirano, Yuichi Kurita, Teiji Ukawa, Tsuneo Takayanagi, Haruka Morimoto, Ryuji Nakamura, Noboru Saeki, Yukihito Higashi, Masashi Kawamoto, Masao Yoshizumi, and Toshio Tsuji, “Evaluation of Arterial Stiffness During the Flow-Mediated Dilation Test”, IEEE International Conference on Systems, Man, and Cybernetics 2013, pp. 3756-3759, The Midland Hotel, Manchester, United Kingdom, October 13-16, 2013. Link

  19. Harutoyo Hirano, Tetsuya Horiuchi, Abdugheni Kutluk, Yuichi Kurita, Teiji Ukawa, Ryuji Nakamura, Noboru Saeki, Yukihito Higashi, Masashi Kawamoto, Masao Yoshizumi, Toshio Tsuji, “A Log-Linearized Arterial Viscoelastic Model for Evaluation of the Carotid Artery”, Proceedings of the 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, pp. 2591-2594, Osaka International Convention Centre, Osaka, Japan, July 3-7, 2013. Link

  20. Hiroki Hirano, Tetsuya Horiuchi, Harutoyo Hirano, Yuichi Kurita, Teiji Ukawa, Ryuji Nakamura, Noboru Saeki, Masao Yoshizumi, Masashi Kawamoto, Toshio Tsuji, “Monitoring of Peripheral Vascular Condition Using a Log-Linearized Arterial Viscoelastic index During Endoscopic Thoracic Sympathectomy”, Proceedings of the 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, pp. 2587-2590, Osaka International Convention Centre, Osaka, Japan, July 3-7, 2013. Link

  21. Abdugheni Kutluk, Harutoyo Hirano, Ryuji Nakamura, Noboru Saeki, Masao Yoshizumi, Masashi Kawamoto, Murat Hamit, and Toshio Tsuji, “Assessment of pain with mechanical nociceptive stimuli by the change of arterial wall impedance”, The 2012 5th International Conference on BioMedical Engineering and Informatics, pp. 315-318, Chongqing DLT Hotel, Chongqing, China, October 16-18, 2012. Link

  22. Harutoyo Hirano, Yusuke Komatsu, Abdugheni Kutluk, Yuichi Kurita, Shigeyuki Kojima, Yumi Ogura, Etsunori Fujita, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Masao Yoshizumi, and Toshio Tsuji, “Development of a Condition Monitoring System Using an Air-pack Type Pressure Sensor for Bedridden Patients in a Supine Position”, Proceedings of IEEE International Conference Condition Monitoring and Diagnosis 2012, pp. 1201-1204, Inna Grand Bali Beach Hotel, Bali, Indonesia, September 23-27, 2012. Link

  23. Harutoyo Hirano, Tomohiro Fukuchi, Yuichi Kurita, Akihiko Kandori, Yuko Sano, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Masao Yoshizumi, Toshio Tsuji, “Development of a Palpable Carotid Pulse Pressure Sensor Using Electromagnetic Induction”, Proceedings of the 2012 IEEE/ICME International Conference on Complex Medical Engineering, pp. 441-444, ANA CROWN PLAZA KOBE, Kobe, Japan, July 1-4, 2012. Link

    Best Student Paper Finalist

  24. Harutoyo Hirano, Hiromi Maruyama, Abdugheni Kutluk, Toshio Tsuji, Osamu Fukuda, Naohiro Ueno, Teiji Ukawa, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto and Masao Yoshizumi, “Measurement of Arterial Viscoelastic Properties Using a Foil-type Pressure Sensor and a Photoplethysmography”, Proceedings of the 2011 International Conference on Electrical Engineering and Informatics, pp. 1-6, Institut Teknologi Bandung, Bandung, Indonesia, July 17-19, 2011. Link

Reviews, Bulletins and Books2 items

  1. Toshio Tsuji, Harutoyo Hirano, Yukihito Higashi, Masao Yoshizumi. Enclosed Zone Flow-mediated Dilation (ezFMD): Development of a Novel Method for Evaluating Vascular Endothelial Function through Medical and Engineering Collaboration. The Journal of Japanese College of Angiology. 2019; 59(4): 23-28 (in Japanese) Link

  2. Harutoyo Hirano, Akihiko Kandori, Toshio Tsuji, “An Electromagnetic-Induction Pulse Wave Sensor Enabling Simultaneous Carotid Palpation and Pulse Wave Measurement”, in New Product Development of Next-Generation Healthcare Devices, Chapter 3, Section 27, pp. 233-239, Technical Information Institute Co., Ltd., 2014 (in Japanese). Link

Invited Talks6 items

  1. Harutoyo Hirano, “The development of diagnostic and therapeutic devices for cardiovascular applications based on engineering technology”, Commemorative Lecture to Mark the Launch of the Reciprocal Short-Term Study Abroad Programme between the Radiology Departments at Fujita Health University and Khon Kaen University, Khon Kaen University, Khon Kaen, March 4th, 2025.

  2. Harutoyo Hirano and Toshio Tsuji, “Evaluation of Vascular Endothelial Function Based on the Air-cuff Plethysmogram”, Proceedings of the SICE Annual Conference 2019, pp. 45-47, Hiroshima International Conference, Hiroshima, Japan, September 10-13, 2019.

  3. Harutoyo Hirano, “A Vascular Health Check That Starts from the Ear”, The 34th Member Companies Exchange Meeting, Shizuoka University Industry–Academia Collaboration Association, Grand Hotel Hamamatsu, Hamamatsu, November 2016 (in Japanese).

  4. Harutoyo Hirano, “Measurement of Lower-Limb Vascular Properties Using a High-Sensitivity Foil-Type Piezoelectric Sensor”, The 2nd Shizuoka University Day, DENSO Headquarters, Kariya, September 2015 (in Japanese).

  5. Harutoyo Hirano, “An Attempt to Measure Vascular Properties Using a High-Sensitivity Piezoelectric Sensor”, The 8th Research and Development Results Presentation, Industrial Research Institute of Shizuoka Prefecture, No. 12, Hamamatsu Technical Support Center, Hamamatsu, June 2015 (in Japanese).

  6. Toshio Tsuji, Harutoyo Hirano, “Development of Medical–Engineering Collaborative Research Based on Arterial Viscoelastic Indices”, Proceedings of the 25th Bioengineering Conference, The Japan Society of Mechanical Engineers, pp. 361-362, AIST Tsukuba Center, Tsukuba, January 2013 (in Japanese). Link

Patents3 items

  1. Toshio Tsuji, Masao Yoshizumi, Harutoyo Hirano, Hiroki Hirano, Genki Matsuoka, Etsunori Fujita, Yumi Ogura, Shigeyuki Kojima, “Pulse Wave Measurement Device, Autonomic Nervous Activity Evaluation Device, Computer Program and Recording Medium”, Japanese Patent No. 6410303 (Application No. 2014-181813; Publication No. 2016-054814), granted October 2018. Link

  2. Akihiko Kandori, Yuko Sano, Toshio Tsuji, Harutoyo Hirano, “Blood Pressure Measurement System”, Japanese Patent No. 6031607 (International Publication No. WO2015/004754), granted November 2016; US Patent No. 10,588,521 B2 (Sphygmomanometer system), granted March 2020. Link

  3. Akihiko Kandori, Yuko Sano, Toshio Tsuji, Harutoyo Hirano, “Pulse Pressure Measurement System”, Japanese Patent No. 5847202 (International Publication No. WO2013/108361), granted January 2016. Link