山形大学 大学院有機材料システム研究科
山形大学

研究成果/Achievements

論文 著作（総説、解説）など 特許 共同研究実績 競争的資金

カバーアート

論文

  1. "Low-Temperature, Sustainable Manufacturing of Printed OTFT Backplanes for Electrophoretic and OLED Displays"
    Yasunori Takeda*, Miho Abiko, Kaori Watanabe, Ryoko Horie, Yasutaka Nakamura, Junghwi Lee, Shohei Yumino, Shinya Oku, Tomohito Sekine, Makoto Mizukami
    Advanced Science, vol. 12, pp: e14091-e14100 (2025).
    https://advanced.onlinelibrary.wiley.com/doi/10.1002/advs.202514091
  2. "MXene-Based High-Performance Soft Pressure Sensor Using Gel–Deep Eutectic Solvent Composite"
    Riku Sasaki, Kaiin Tou, Shoma Kamanoi, Junya Yoshida, Yoshihito Takabe, Yasuyuki Miura, Eri Kamiya, Ayana Hirayama, Tomohito Sekine*
    Micromachines, vol. 16, pp: 579-591 (2025).
    https://doi.org/10.3390/mi16050579
  3. "A wearable AI sensing system for non-invasive and experimental characterization of biological tissue hardness"
    Kenta Nara, Ayana Hirayama, Yasuyuki Miura, Yoshihito Takabe, Riku Sasaki, Koki Ozawa, Yi-Fei Wang, Yasunori Takeda, Daisuke Kumaki, Hiroyuki Matsui, Tomohito Sekine*
    Chemical Engineering Journal, vol. 511, pp: 162180-162189 (2025).
    https://doi.org/10.1016/j.cej.2025.162180
  4. "Ultra-Rapidly Responsive Electret-Based Flexible Pressure Sensor via Functional Polymeric Nanoparticle Synthesis"
    Tatsuya Yasuda, Ryutaro Komine, Ryoma Nojiri, Yoshihito Takabe, Kenta Nara, Takeru Kaneko, Syunsuke Horigome, Yasunori Takeda, Yi-Fei Wang, Seigou Kawaguchi*, Tomohito Sekine*
    Advanced Functional Materials, vol. 34, pp: 2402064-2402075 (2024).
    【Selected Front Cover】
    https://doi.org/10.1002/adfm.202402064
  5. "Ag Nanoparticle Ink for High-Resolution Printed Electrodes and Organic Thin‐Film Transistors Using Reverse-Offset Printing"
    Yamato Suzuki, Daisuke Kumaki*, Taichi Kikkawa, Toshiki Yoshioka, Shunsuke Horigome, Yasunori Takeda, Tomohito Sekine, Shizuo Tokito*
    Advanced Electronic Materials, vol. 10, pp: 2400546-2400554 (2024).
    https://doi.org/10.1002/aelm.202400546
  6. "Facile printing of liquid-metal-based stretchable conductor using EGaIn/Ga2O3 composite"
    Yi-Fei Wang, Takeru Kaneko, Ayako Yoshida, Yasunori Takeda, Junya Yoshida, Tomohito Sekine, Daisuke Kumaki, Shizuo Tokito*
    Flexible and Printed Electronics, vol. 9, pp: 035004-035010 (2024).
    https://iopscience.iop.org/article/10.1088/2058-8585/ad6333
  7. "Advancing Robotic Gripper Control with the Integration of Flexible Printed Pressure Sensors"
    Yasunori Takeda, Yi-Fei Wang, Ayako Yoshida, Tomohito Sekine, Daisuke Kumaki, Shizuo Tokito*
    Advanced Engineering Materials, vol. 26, pp: 2302031-2302038 (2024).
    https://doi.org/10.1002/adem.202302031
  8. "Printing pressure optimization in reverse offset printing for micrograting fabrication"
    Hayato Komatsu, Yasunori Takeda, Yi-Fei Wang, Ayako Yoshida, Tomohito Sekine, Shizuo Tokito*
    Japanese Journal of Applied Physics, vol. 63, pp: 020904-020908 (2024).
    https://iopscience.iop.org/article/10.35848/1347-4065/ad2484
  9. "Development of printed X-ray grating and its application to an imaging system"
    Hayato Komatsu, Wataru Yashiro, Xiaoyu Liang, Ayako Yoshida, Yasunori Takeda, Tomohito Sekine, Daisuke Kumaki, Shizuo Tokito*
    Japanese Journal of Applied Physics, vol. 63, pp: 040906-040910 (2024).
    https://iopscience.iop.org/article/10.35848/1347-4065/ad33f4
  10. "Printed Composite Film with Microporous/Micropyramid Hybrid Conductive Architecture for Multifunctional Flexible Force Sensors"
    Yi-Fei Wang, Junya Yoshida, Yasunori Takeda, Ayako Yoshida, Takeru Kaneko, Tomohito Sekine, Daisuke Kumaki, Shizuo Tokito*
    Nanomaterials, vol. 14, pp: 63-73 (2024).
    https://doi.org/10.3390/nano14010063
  11. "Robotic e-skin for high performance stretchable acceleration sensor via combinations of novel soft and functional polymers"
    Tomohito Sekine*, Keita Ito, Yoshinori Shouji, Ryosuke Suga, Tatsuya Yasuda, Yi-Fei Wang, Yasunori Takeda, Daisuke Kumaki, Fabrice Domingues Dos Santos, Huan g Tong, Atsushi Miyabo, Shizuo Tokito
    Applied Materials Today, vol. 33, pp: 101877-101886 (2023).
    https://doi.org/10.1016/j.apmt.2023.101877
  12. "Printed Bilayer Liquid Metal Soft Sensors for Strain and Tactile Perception in Soft Robotics"
    Takeru Kaneko, Yi-Fei Wang*, Mayuka Hori, Tomohito Sekine, Ayako Yoshida, Yasunori Takeda, Daisuke Kumaki, Shizuo Tokito*
    Advanced Materials Technologies, vol. 8, pp: 2300436-2300444 (2023).
    https://doi.org/10.1002/admt.202300436
  13. "Unobstructive Heartbeat Monitoring of Sleeping Infants and Young Children Using Sheet-Type PVDF Sensors"
    Daisuke Kumaki*, Yuko Motoshima*, Fujio Higuchi, Katsuhiro Sato, Tomohito Sekine*, Shizuo Tokito*
    Sensors, vol. 23, pp: 9252-9263 (2023).
    https://doi.org/10.3390/s23229252
  14. "Printed Directional Bending Sensor with High Sensitivity and Low Hysteresis for Human Motion Detection and Soft Robotic Perception"
    Yi-Fei Wang*, Ayako Yoshida, Yasunori Takeda, Tomohito Sekine, Daisuke Kumaki, Shizuo Tokito*
    Sensors, vol 23, pp: 5041-5052 (2023).
    https://doi.org/10.3390/s23115041
  15. "Micro-Pore Composed Soft Pressure Sensor with Ether‐Surfactant via High‐Sensitivity in Wide Range for Robotic Machine Interface Application"
    Kaiin Tou, Kenta Nara, Tomohito Sekine*, Yi-Fei Wang, Yasunori Takeda, Daisuke Kumaki, Shizuo Tokito*
    Advanced Sensor Research vol. 2, pp: 2300045-2300051 (2023).
    【Selected Front Cover】
    https://doi.org/10.1002/adsr.202300045
  16. "Fast Response, High-Power Tunable Ultrathin Soft Actuator by Functional Piezoelectric Material Composite for Haptic Device Application"
    Yoshinori Shouji, Tomohito Sekine*, Keita Ito, Naoya Ito, Tatsuya Yasuda, Yi‐Fei Wang, Yasunori Takeda, Daisuke Kumaki, Fabrice Domingues Dos Santos, Atsushi Miyabo, Shizuo Tokito
    Advanced Electronic Materials, vol. 9, pp: 2201040-2201046 (2023).
    【Selected Back Cover】
    https://doi.org/10.1002/aelm.202201040
  17. "Optimization of the blend ratio of soft functional polymers for high piezoelectric performance stretchable device"
    Keita Ito, Tomohito Sekine*, Yoshinori Shouji, Yi-Fei Wang, Yasunori Takeda, Daisuke Kumaki, Fabrice Domingues Dos Santos, Huang Tong, Atsushi Miyabo, Shizuo Tokito
    Applied Physics Express, vol 16, pp: 011004-011008 (2023).
    https://iopscience.iop.org/article/10.35848/1882-0786/acb3ac
  18. "Bottom gate top contact organic transistors using thiophene and furan flanked diketopyrrolopyrrole polymers and its comparative study"
    Thu-Trang Do, Yasunori Takeda, Tomohito Sekine, Yogesh Yadav, Sergei Manzhos, Krishna Feron, Samarendra P Singh, Shizuo Tokito*, Prashant Sonar*
    Flexible and Printed Electronics, vol. 7, pp: 035014-035020 (2022).
    https://iopscience.iop.org/article/10.1088/2058-8585/ac8887
  19. "Printed Low-Hysteresis Stretchable Strain Sensor Based on a Self-Segregating Conductive Composite"
    Ayako Yoshida, Yi-Fei Wang*, Tomohito Sekine, Yasunori Takeda, Daisuke Kumaki, Shizuo Tokito*
    ACS Applied Engineering Materials, vol. 1, pp: 50-58 (2022).
    https://doi.org/10.1021/acsaenm.2c00010
  20. "Printed, all-carbon-based flexible humidity sensor using a cellulose nanofiber/graphene nanoplatelet composite"
    Ayako Yoshida, Yi-Fei Wang, Shogo Tachibana, Ayuka Hasegawa, Tomohito Sekine*, Yasunori Takeda, Jinseo Hong, Daisuke Kumaki, Takeo Shiba, Shizuo Tokito*
    Carbon Trends, vol. 7 pp: 100166-100172 (2022).
    https://doi.org/10.1016/j.cartre.2022.100166
  21. "Optimization of a Soft Pressure Sensor in Terms of the Molecular Weight of the Ferroelectric‐Polymer Sensing Layer"
    Yushi Watanabe, Tomohito Sekine*, Reo Miura, Mai Abe, Yoshinori Shouji, Keita Ito, Yi-Fei Wang, Jinseo Hong, Yasunori Takeda, Daisuke Kumaki, Fabrice Domingues Dos Santos, Atsushi Miyabo, Shizuo Tokito*
    Advanced Functional Materials, vol. 32, pp: 2107434-2107441 (2022).
    【Selected Front Cover】
    https://doi.org/10.1002/adfm.202107434
  22. "A Printed Flexible Humidity Sensor with High Sensitivity and Fast Response Using a Cellulose Nanofiber/Carbon Black Composite"
    Shogo Tachibana, Yi-Fei Wang*, Tomohito Sekine, Yasunori Takeda, Jinseo Hong, Ayako Yoshida, Mai Abe, Reo Miura, Yushi Watanabe, Daisuke Kumaki, Shizuo Tokito*
    ACS Applied Materials & Interfaces, vol. 14, pp: 5721-5728 (2022).
    https://doi.org/10.1021/acsami.1c20918
  23. "Deep Eutectic Solvent Induced Porous Conductive Composite for Fully Printed Piezoresistive Pressure Sensor"
    Yi-Fei Wang*, Tomohito Sekine, Yasunori Takeda, Jinseo Hong, Ayako Yoshida, Daisuke Kumaki, Takeo Shiba, Shizuo Tokito*
    Advanced Materials Technologies, vol. 6, pp: 2100731-2100737 (2021).
    https://doi.org/10.1002/admt.202100731
  24. "Flexible printed temperature sensor with high humidity stability using bilayer passivation"
    Shogo Tachibana, Yi-Fei Wang*, Tomohito Sekine, Ayako Yoshida, Yasunori Takeda, Mai Abe, Reo Miura, Yushi Watanabe, Daisuke Kumaki, Shizuo Tokito*
    Flexible and Printed Electronics, vol. 6, pp: 034002-034008 (2021).
    https://iopscience.iop.org/article/10.1088/2058-8585/ac0fce/meta
  25. "Flexible and Printed Organic Nonvolatile Memory Transistor with Bilayer Polymer Dielectrics"
    Woojo Kim, Jimin Kwon, Yasunori Takeda, Tomohito Sekine, Shizuo Tokito*, Sungjune Jung*
    Advanced Materials Technologies, vol. 6, pp: 2100141-2100146 (2021).
    https://doi.org/10.1002/admt.202100141
  26. "Artificial Cutaneous Sensing of Object Slippage using Soft Robotics with Closed‐Loop Feedback Process"
    Tomohito Sekine*, Yi-Fei Wang, Jinseo Hong, Yasunori Takeda, Reo Miura, Yushi Watanabe, Mai Abe, Yoshiki Mori, Zhongkui Wang, Daisuke Kumaki, Fabrice Domingues Dos Santos, Atsushi Miyabo, Sadao Kawamura, Shizuo Tokito*
    Small Science, vol. 1, pp: 2100002-2100010 (2021).
    【Selected Inside Front Cover】
    https://doi.org/10.1002/smsc.202100002
  27. "Printed Electronics-Enabled Wearable/Portable Physical and Chemical Sensors for Personal Digital Healthcare"
    Kuniaki Nagamine*, Tomohito Sekine*, Shizuo Tokito*
    Encyclopedia of Sensors and Biosensors, vol. 3, pp: 68-79 (2021).
    【Review Paper】
    https://doi.org/10.1016/B978-0-12-822548-6.00077-7
  28. "Fully Printed PEDOT:PSS-based Temperature Sensor with High Humidity Stability for Wireless Healthcare Monitoring"
    Yi-Fei Wang*, Tomohito Sekine, Yasunori Takeda, Koji Yokosawa, Hiroyuki Matsui, Daisuke Kumaki, Takeo Shiba, Takao Nishikawa, Shizuo Tokito*
    Scientific Reports, vol 10, pp: 2467-2474 (2020).
    【Editor's choice: wearable technology Collection】
    【Top 100 in Materials Science】
    https://doi.org/10.1038/s41598-020-59432-2
  29. "Microporous Induced Fully Printed Pressure Sensor for Wearable Soft Robotics Machine Interfaces"
    Tomohito Sekine*, Mai Abe, Kosuke Muraki, Shogo Tachibana, Yi-Fei Wang, Jinseo Hong, Yasunori Takeda, Daisuke Kumaki, Shizuo Tokito*
    Advanced Intelligent Systems, vol. 2, pp: 2000179-2000185 (2020).
    【Selected Back Cover】
    https://doi.org/10.1002/aisy.202000179
  30. "Printed Soft Sensor with Passivation Layers for the Detection of Object Slippage by a Robotic Gripper"
    Reo Miura, Tomohito Sekine*, Yi-Fei Wang, Jinseo Hong, Yushi Watanabe, Keita Ito, Yoshinori Shouji, Yasunori Takeda, Daisuke Kumaki, Fabrice Domingues Dos Santos, Atsushi Miyabo, Shizuo Tokito*
    Micromachines, vol. 11, pp: 927-935 (2020).
    https://doi.org/10.3390/mi11100927
  31. "Reduced Threshold Voltages and Enhanced Mobilities in Diketopyrrolopyrrole-Dithienothiophene Polymer‐Based Organic Transistor by Interface Engineering"
    Basanagouda B. Patil, Yasunori Takeda, Thu Trang Do, Amandeep Singh, Tomohito Sekine, Soniya D. Yambem, Shizuo Tokito*, Samarendra P. Singh*, Ajay K. Pandey*, Prashant Sonar*
    physica status solidi (a), vol. 217, pp: 2000097-2000097 (2020).
    https://doi.org/10.1002/pssa.202000097
  32. "Printed Strain Sensor with High Sensitivity and Wide Working Range Using a Novel Brittle-Stretchable Conductive Network"
    Yi-Fei Wang*, Tomohito Sekine, Yasunori Takeda, Jinseo Hong, Ayako Yoshida, Hiroyuki Matsui, Daisuke Kumaki, Takao Nishikawa, Takeo Shiba, Tadahiro Sunaga, Shizuo Tokito*
    ACS Applied Materials & Interfaces, vol. 12, pp: 35282-35290 (2020).
    https://doi.org/10.1021/acsami.0c09590
  33. "High-Speed Complementary Integrated Circuit with a Stacked Structure Using Fine Electrodes Formed by Reverse Offset Printing"
    Yasunori Takeda*, Tomohito Sekine, Yi-Fei Wang, Tomoko Okamoto, Hiroyuki Matsui, Daisuke Kumaki, Shizuo Tokito*
    ACS Applied Electronic Materials, vol. 2, pp: 763-768 (2020).
    【Selected Front Cover】
    https://doi.org/10.1021/acsaelm.9b00829
  34. "A multidimensional scheme of characterization for performance deterioration behavior of flexible devices under bending deformation"
    Shoji Kamiya*, Hayato Izumi, Tomohito Sekine, Nobuyuki Shishido, Hiroko Sugiyama, Yasuko Haga, Takeo Minari, Masaaki Koganemaru, Shizuo Tokito
    Thin Solid Films, vol. 694, pp: 137613-137619 (2020).
    https://doi.org/10.1016/j.tsf.2019.137613
  35. "Ferroelectric polymer-based fully printed flexible strain rate sensors and their application for human motion capture"
    Jun Sato, Tomohito Sekine*, Wang Yi-Fei, Yasunori Takeda, Hiroyuki Matsui, Daisuke Kumaki, Fabrice Domingues Dos Santos, Atsushi Miyabo, Shizuo Tokito*
    Sensors and Actuators A: Physical, vol. 295, pp: 93-98 (2019).
    https://doi.org/10.1016/j.sna.2019.05.022
  36. "Printed low-voltage-operating organic thin-film transistors using high-k and paraelectric polymers"
    Tomohito Sekine*, Tomoya Tashiro, Yasunori Takeda, Daisuke Kumaki, Fabrice Domindues Dos Santos, Atsushi Miyabo, Shizuo Tokito*
    Japanese Journal of Applied Physics, vol. 58, pp: 080906-080910 (2019).
    https://iopscience.iop.org/article/10.7567/1347-4065/ab3032
  37. "Synthesis and Deformable Hierarchical Nanostructure of Intrinsically Stretchable ABA Triblock Copolymer Composed of Poly(3-hexylthiophene) and Polyisobutylene Segments"
    Tomoya Higashihara*, Seijiro Fukuta, Yuto Ochiai, Tomohito Sekine, Keisuke Chino, Tomoyuki Koganezawa, Itaru Osaka*
    ACS Applied Polymer Materials, vol. 1, pp: 315-320 (2019).
    https://doi.org/10.1021/acsapm.8b00087
  38. "Low Operating Voltage and Highly Pressure-Sensitive Printed Sensor for Healthcare Monitoring with Analogic Amplifier Circuit"
    Tomohito Sekine*, Alexandre Gaı̈tis, Jun Sato, Kohei Miyazawa, Kosuke Muraki, Rei Shiwaku, Yasunori Takeda, Hiroyuki Matsui, Daisuke Kumaki, Fabrice Domingues Dos Santos, Atsushi Miyabo, Micaël Charbonneau, Shizuo Tokito*
    ACS Applied Electronic Materials, vol. 1, pp: 246-252 (2019).
    【Selected Front Cover】
    https://doi.org/10.1021/acsaelm.8b00088
  39. "An Organic FET with an Aluminum Oxide Extended Gate for pH Sensing"
    Tsukuru Minamiki, Tomohito Sekine, Michio Aiko, Shiwei Su, Tsuyoshi Minami*
    Sensors and Materials, vol. 31, pp: 99-106 (2019).
    https://doi.org/10.18494/SAM.2019.2082
  40. "A Fully Printed Ultra-Thin Charge Amplifier for On-Skin Biosignal Measurements"
    Mika-Matti Laurila, Hiroyuki Matsui, Rei Shiwaku, Mikko Peltokangas, Jarmo Verho, Karem Lozano Montero, Tomohito Sekine, Antti Vehkaoja, Niku Oksala, Shizuo Tokito, Matti Mantysalo*
    IEEE Journal of the Electron Devices Society, vol. 7 pp: 566-574 (2019).
    https://ieeexplore.ieee.org/document/8706537
  41. "Fully Printed Wearable Vital Sensor for Human Pulse Rate Monitoring using Ferroelectric Polymer"
    Tomohito Sekine*, Ryo Sugano, Tomoya Tashiro, Jun Sato, Yasunori Takeda, Hiroyuki Matsui, Daisuke Kumaki, Fabrice Domingues Dos Santos, Atsushi Miyabo, Shizuo Tokito*
    Scientific Reports, vol. 8, Article ID. 4442 (2018).
    【Top 100 in Materials Science of Scientific Reports】
    https://www.nature.com/articles/s41598-018-22746-3
  42. "Printed Organic Complementary Inverter with Single SAM Process Using a p-type D-A Polymer Semiconductor"
    Yasunori Takeda*, Tomohito Sekine, Rei Shiwaku, Tomohide Murase, Hiroyuki Matsui, Daisuke Kumaki, Shizuo Tokito*
    Applied Sciences, vol. 8, pp: 1331-1339 (2018).
    https://doi.org/10.3390/app8081331
  43. "Switching Time in Ferroelectric Organic Field‐Effect Transistors"
    Ryo Sugano, Tomoya Tashiro, Tomohito Sekine*, Hiroyuki Matsui, Daisuke Kumaki, Fabrice Domingues Dos Santos, Atsushi Miyabo, Shizuo Tokito*
    physica status solidi (a), vol. 215, pp: 1701059-1701064 (2018).
    https://doi.org/10.1002/pssa.201701059
  44. "Morphological Behavior of Printed Silver Electrodes with Protective Self-Assembled Monolayers for Electrochemical Migration"
    Tomohito Sekine*, Jun Sato, Yasunori Takeda, Daisuke Kumaki, Shizuo Tokito*
    ACS Applied Materials & Interfaces, vol. 10, pp: 16210-16215 (2018).
    https://doi.org/10.1021/acsami.8b02996
  45. "Organic Complementary Inverter Circuits Fabricated with Reverse Offset Printing"
    Yasunori Takeda, Yudai Yoshimura, Rei Shiwaku, Kazuma Hayasaka, Tomohito Sekine, Tomoko Okamoto, Hiroyuki Matsui*, Daisuke Kumaki, Yoshinori Katayama, Shizuo Tokito*
    Advanced Electronic Materials, vol. 4, pp: 1700313-1700317 (2018).
    https://doi.org/10.1002/aelm.201700313
  46. "Development of a silver nanoparticle ink for fine line patterning using gravure offset printing"
    Shiokawa Daisuke, Izumi Konami, Sugano Ryo, Sekine Tomohito, Minami Tsuyoshi, Kumaki Daisuke, Tokito Shizuo*
    Japanese Journal of Applied Physics, vol. 56, Article ID. 5S2 (2017).
    https://iopscience.iop.org/article/10.7567/JJAP.56.05EA04
  47. "Mechanical Fatigue Behavior of Flexible Printed Organic Thin-Film Transistors under Applied Strain"
    Tomohito Sekine*, Daisuke Kumaki, Shizuo Tokito*
    Materials, vol. 10, pp: 18-26 (2016).
    https://doi.org/10.3390/ma10010018
  48. "Ultrathin flexible memory devices based on organic ferroelectric transistors"
    Ryo Sugano, Yoshinori Hirai, Tomoya Tashiro, Tomohito Sekine, Kenjiro Fukuda, Daisuke Kumaki, Fabrice Domingues dos Santos, Atsushi Miyabo, Shizuo Tokito*
    Japanese Journal of Applied Physics, vol. 55, Article ID. 10TA04 (2016).
    https://iopscience.iop.org/article/10.7567/JJAP.55.10TA04
  49. "Fully printed and flexible ferroelectric capacitors based on a ferroelectric polymer for pressure detection"
    Tomohito Sekine*, Ryo Sugano, Tomoya Tashiro, Kenjiro Fukuda, Daisuke Kumaki, Fabrice Domingues Dos Santos, Atsushi Miyabo, Shizuo Tokito*
    Japanese Journal of Applied Physics, vol. 55, Article ID. 10TA18 (2016).
    https://iopscience.iop.org/article/10.7567/JJAP.55.10TA18
  50. "The effect of mechanical strain on contact resistance in flexible printed organic thin-film transistors"
    Tomohito Sekine*, Kenjiro Fukuda, Daisuke Kumaki, Shizuo Tokito*
    Flexible and Printed Electronics, vol. 1, pp: 035005-035012 (2016).
    【Selected Featured Paper of Flexible and Printed Electronics 2016】
    https://iopscience.iop.org/article/10.1088/2058-8585/1/3/035005
  51. "Free-Standing Organic Transistors and Circuits with Sub-Micron Thicknesses"
    Kenjiro Fukuda*, Tomohito Sekine, Rei Shiwaku, Takuya Morimoto, Daisuke Kumaki, Shizuo Tokito*
    Scientific Reports, vol. 6, Article ID. 27450 (2016).
    https://www.nature.com/articles/srep27450
  52. "Enhanced memory characteristics in organic ferroelectric field-effect transistors through thermal annealing"
    Ryo Sugano, Tomoya Tashiro, Tomohito Sekine, Kenjiro Fukuda, Daisuke Kumaki, Shizuo Tokito*
    AIP Advances, vol. 5, pp: 117106-117112 (2015).
    https://doi.org/10.1063/1.4935342
  53. "Enhanced adhesion mechanisms between printed nano-silver electrodes and underlying polymer layers"
    Tomohito Sekine, Kenjiro Fukuda*, Daisuke Kumaki, Shizuo Tokito
    Nanotechnology, vol. 26, pp: 321001-321008 (2015).
    https://iopscience.iop.org/article/10.1088/0957-4484/26/32/321001
  54. "Highly stable flexible printed organic thin-film transistor devices under high strain conditions using semiconducting polymers"
    Tomohito Sekine*, Kenjiro Fukuda, Daisuke Kumaki, Shizuo Tokito*
    Japanese Journal of Applied Physics, vol. 54, Article ID. 04DK10 (2015).
    https://iopscience.iop.org/article/10.7567/JJAP.54.04DK10
  55. "Fully-printed high-performance organic thin-film transistors and circuitry on one-micron-thick polymer films"
    Kenjiro Fukuda*, Yasunori Takeda, Yudai Yoshimura, Rei Shiwaku, Lam Truc Tran, Tomohito Sekine, Makoto Mizukami, Daisuke Kumaki, Shizuo Tokito*
    Nature Communications, vol. 5, Article ID. 4147 (2014).
    https://www.nature.com/articles/ncomms5147
  56. "Improvement of mechanical durability on organic TFT with printed electrodes prepared from nanoparticle ink"
    Tomohito Sekine*, Hideaki Ikeda, Akifumi Kosakai, Kenjiro Fukuda, Daisuke Kumaki, Shizuo Tokito*
    Applied Surface Science, vol. 294, pp: 20-23 (2014).
    https://doi.org/10.1016/j.apsusc.2013.12.168
  57. "An extended-gate type organic field effect transistor functionalised by phenylboronic acid for saccharide detection in water"
    Tsuyoshi Minami*, Tsukuru Minamiki, Yuki Hashima, Daisuke Yokoyama, Tomohito Sekine, Kenjiro Fukuda, Daisuke Kumaki, Shizuo Tokito*
    Chemical Communications, vol. 50, pp: 15613-15615 (2014).
    https://doi.org/10.1039/C4CC07498J
  58. Strain sensitivity and durability in p-type and n-type organic thin-film transistors with printed silver electrodes
    Kenjiro Fukuda, Kenta Hikichi, Tomohito Sekine, Yasunori Takeda, Tsukuru Minamiki, Daisuke Kumaki, Shizuo Tokito
    Scientific Reports, vol. 3, pp: 2048-2053 (2013).
    https://doi.org/10.1038/srep02048
  59. "Profile Control of Inkjet Printed Silver Electrodes and Their Application to Organic Transistors"
    Kenjiro Fukuda*, Tomohito Sekine, Daisuke Kumaki, Shizuo Tokito*
    ACS Applied Materials & Interfaces, vol. 5, pp: 3916-3920 (2013).
    https://doi.org/10.1021/am400632s
  60. "Patterning Method for Silver Nanoparticle Electrodes in Fully Solution-Processed Organic Thin-Film Transistors Using Selectively Treated Hydrophilic and Hydrophobic Surfaces"
    Kenjiro Fukuda*, Yasunori Takeda, Yu Kobayashi, Masahiro Shimizu, Tomohito Sekine, Daisuke Kumaki, Masato Kurihara, Masatomi Sakamoto, Shizuo Tokito*
    Japanese Journal of Applied Physics, vol. 52, Article ID. 05DB05 (2013).
    https://iopscience.iop.org/article/10.7567/JJAP.52.05DB05
  61. "Organic integrated circuits using room-temperature sintered silver nanoparticles as printed electrodes"
    Kenjiro Fukuda*, Tomohito Sekine, Yu Kobayashi, Yasunori Takeda, Masahiro Shimizu, Naoya Yamashita, Daisuke Kumaki, Mitsunori Itoh, Minami Nagaoka, Takami Toda, Sayaka Saito, Masato Kurihara, Masatomi Sakamoto, Shizuo Tokito*
    Organic Electronics, vol. 13, pp: 3296-3301 (2012).
    https://doi.org/10.1016/j.orgel.2012.09.028
  62. "Stable organic thin-film transistors using full solution-processing and low-temperature sintering silver nanoparticle inks"
    Kenjiro Fukuda*, Tomohito Sekine, Yu Kobayashi, Daisuke Kumaki, Mitsunori Itoh, Minami Nagaoka, Takami Toda, Sayaka Saito, Masato Kurihara, Masatomi Sakamoto, Shizuo Tokito*
    Organic Electronics, vol. 13, pp: 1660-1664 (2012).
    https://doi.org/10.1016/j.orgel.2012.05.016
  63. "Applied Voltage Dependence of Carbon Radical in Electric Double Layer Capacitor Measured by in situ ESR Spectroscopy and AC Cyclic Voltammetry"
    Tomohiro Ito*, Masakatsu Kobayashi, Mayumi Yochida, Tomohito Sekine, Kazuhiro Tachibana, Tatsuo Nichina, Tateaki Ogata*
    Electrochemistry, vol. 78, pp: 390-392 (2010).
    https://doi.org/10.5796/electrochemistry.78.390
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著作（総説、解説）など

  1. "印刷法でつくるデジタルスキンデバイスの基礎と応用"
    関根智仁
    日本印刷学会誌, vol. 62, pp: 2-5 (2025).
  2. "フレキシブル印刷型センサの 高機能化と触覚機能の研究"
    関根智仁
    クリーンテクノロジー (日本工業出版社), vol. 34, pp: 20-22 (2024).
  3. "印刷形成による強誘電性高分子を用いたフレキシブル高感度圧力センサの機能性"
    関根智仁
    次世代ウェアラブルデバイスに向けたフレキシブル・伸縮性エレクトロニクス技術とセンサ開発 (サイエンス＆テクノロジー社), 第2章, 第3節 (2023).
  4. "機能性有機材料を用いた高性能薄膜アクチュエータの開発と応用"
    関根智仁
    車載テクノロジー（技術情報協会社）, vol.10, pp: 59-52 (2023).
  5. "機能性有機材料を用いたウェアラブル物理センサのヘルスケア応用"
    関根智仁
    センサイトWebジャーナル, 2022年.
  6. "ここまで来たウェアラブルセンシング技術と今後への挑戦"
    長峯邦明, 関根智仁, 時任静士
    化学と教育 (日本化学会), vol. 68, pp: 490-493 (2020).
  7. "親撥パターニング法を用いた微細配線形成と有機TFT応用"
    吉田将太, 松浦陽, 塩飽黎, 竹田泰典, 関根智仁, 浜口仁, 熊木大介, 時任静士
    日本画像学会誌, vol. 59, pp: 111-117 (2020).
  8. "印刷銀電極の化学的耐久性向上のためのエレクトロケミカルマイグレーション解析"
    関根智仁, 竹田泰典, 熊木大介, 時任静士
    エレクトロニクス実装学会誌, vol. 23, pp: 516-520 (2020).
  9. "ソフトロボットハンドへ実装する高分子センサ"
    関根智仁
    高分子学会誌 (特集: 高分子とロボット工学), vol. 69, pp: 208-209 (2020).
  10. "印刷型P(VDF-TrFE)センサの基礎と応用"
    関根智仁
    クリーンテクノロジー (日本工業新聞社), vol. 29, pp: 8-10 (2019).
  11. "強誘電性高分子を用いた圧力センサのヘルスケア応用"
    関根智仁, 熊木大介, 時任静士
    日本写真学会誌 (特集:アンビエント技術セミナー), vol. 82, pp: 10-12 (2019).
  12. "ソフトセンサによる産業用ロボットにイノベーション～ずりセンサによるハンドリング革命とストレッチャブル配線のインパクト～"
    関根智仁, 時任静士
    機械設計 (日刊工業新聞社), vol. 62, pp: 48-52 (2018).
  13. "印刷電極の密着性向上技術とフレキシブル有機トランジスタ応用"
    関根智仁, 時任静士
    表面・界面技術ハンドブック (技術情報協会社), 第3編, 第7章 (2015).
  14. "印刷電極の信頼性"
    関根智仁
    次世代プリンテッドエレクトロニクス技術 (シーエムシー出版社), 第4編, 第5章 (2015).
  15. "銀ナノ粒子インクを用いた印刷電極の密着力と曲げ応力耐性"
    関根智仁, 福田憲二郎, 熊木大介, 時任静士
    コンバーテック (加工技術研究会社), vol. 484, pp: 88-91 (2013).
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特許

  1. 特願2024-021976, 抵抗変化型硬さセンサ
  2. 特許7249029, 圧力検出装置
  3. 特許7177542, 強誘電性ポリマー素子の製造方法
  4. 特願2022-009763, ソフトアクチュエータ
  5. 特願2022-015987, 伸縮性センサー及びその製造方法
  6. 特許7064054, 高い全光線透過率を持つポリイミド薄膜上に形成された触覚センサとそれを用いたスイッチングデバイス
  7. 特許6849221, 金属薄膜の製造方法及び導電構造
  8. WO2020/174871-A1, Method for Producting Ferroelectric Polymer Element, ferroelectric Polymer Element and Piezoelectric Sensor
  9. 特開6485917, 金属薄膜を有する導電構造
  10. 特許9773989, 金属薄膜の製造方法及び導電構造の製造方法
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共同研究実績

  1. 【一般企業など】
    材料メーカー様（国内）、総合メーカー様（国内）、総合商社様（国内）、材料メーカー様（海外）ほか
  2. 【大学、公的機関など】
    東京大学、東北大学、立命館大学、名古屋工業大学、鹿児島大学、物質・材料研究機構、産業技術総合研究所　ほか

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競争的資金

科研費・公的資金など

  1. （代表）検出原理の矛盾を打破するウニ型微粒子による超万能圧力センサ
    日本学術振興会 科学研究費助成事業 挑戦的研究（萌芽）
  2. （代表）ソフトエンドエフェクタにおける多種触覚データのクロスモーダル自動学習処理
    日本学術振興会 科学研究費助成事業 基盤研究（B）
  3. （分担）農薬に対する生理反応の非破壊連続測定を目的とした革新的植物／デバイス界面の創出
    日本学術振興会 科学研究費助成事業 基盤研究（B）
    （代表者：長峯邦明 教授）
  4. （代表）インターデジタル構造を有する2次元層状炭化物によるソフト圧力センサの創生
    日本学術振興会 科学研究費助成事業 若手研究
  5. （代表）ナノ界面制御によるマイクロポア構造を有するソフト圧力センサの創出
    日本学術振興会 科学研究費助成事業 若手研究
  6. （代表）Industry4.0に適合するロボットスキン用ストレッチャブル加速度センサの開発
    科学技術振興機構 A-STEP トライアウト
  7. （代表）ダイポールマッチング法を駆使したブレンデッド強誘電性ポリマーによる高機能性ストレッチャブル加速度センサ
    科学技術振興機構 A-STEP 機能検証フェーズ試験研究タイプ
  8. （代表）フレキシブル脈波センサによる波形解析を駆使したATセンシング技術の開発
    文部科学省 COI若手連携研究ファンド
  9. （代表）塗るだけで作れる電子回路学習教材の開発
    日本学術振興会 科学研究費助成事業 奨励研究
  10. （代表）銀ナノ粒子インクを用いた印刷電極の密着性向上技術の開発
    日本学術振興会 科学研究費助成事業 奨励研究

民間財団など

  1. （代表）モノの質感を精密に検出できるデジタルスキンの開発とAIアルゴリズム構築
    公益財団法人 UBE学術振興財団
  2. （代表）有機アクチュエータデバイスの新奇細胞培養システム応用
    一般財団法人 荒井芳男記念財団
  3. （代表）指紋を有する生体模倣型ソフトすべり覚センサの創出
    公益財団法人 日揮・実吉奨学会
  4. （代表）機能性複合有機材料を駆使したデュアル触覚センサの創生とロボットスキン応用
    公益財団法人 インテリジェント・コスモス学術振興財団
  5. （代表）サイバーデータの効率的取得に向けた生体模倣型印刷スキンデバイスの開発
    公益社団法人 新化学技術推進協会
  6. （代表）ポリマーナノ複合材料によるソフトロボティクス触覚センサの創出
    公益財団法人 セイコーインスツル新世代研究財団
  7. （代表）ロボティクスオートメーション化に向けたソフトマルチセンサの開発とデジタルスキン応用
    公益財団法人 御器谷材料科学財団
  8. （代表）全印刷型増幅回路を搭載した高感度有機圧力センサの創生
    公益財団法人 日立金属・材料科学財団
  9. （代表）ロボットスキン応用を指向した印刷型フレキシブルすべり覚センサの創生
    公益財団法人 NSKメカトロニクス技術高度化財団
  10. （代表）フレキシブルソフトアクチュエータの高機械的安定性向上とアレイデバイス化
    公益財団法人 永守財団
  11. （代表）高速駆動可能なフレキシブルソフトアクチュエータの作製と生体触覚機能への展開
    公益財団法人 永守財団
  12. （代表）触覚フィードバックシステムを指向した印刷型平面ソフトアクチュエータの開発
    公益財団法人 永守財団
  13. （代表）ブレンデッドリラクサーポリマーを用いた全印刷型低電圧駆動有機TFTの作製と論理回路応用
    公益財団法人 松籟科学技術振興財団
  14. （代表）有機強誘電性薄膜を用いた全印刷型発電デバイスの開発
    公益財団法人 八洲環境技術振興財団
  15. （代表）触覚機能を有するロボットスキンに適合するソフトなセンサデバイスの開発
    一般財団法人 電子回路基板技術振興財団
  16. （代表）高齢者介護用途を指向した印刷型体温計に適合する全印刷型電子回路の開発
    一般財団法人 電子回路基板技術振興財団
  17. （代表）全工程印刷法で作製された有機薄膜トランジスタの曲げセンサ応用
    東京工業大学基金 研究補助制度
  18. （代表）フレキシブルフィルム上への低抵抗配線の低温形成技術の確立
    山形大学産業研究所 米沢市奨励研究補助金
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