Rchr
J-GLOBAL ID：201701020689445049
Update date: Sep. 14, 2024
Yajima Takeaki
Yajima Takeaki | Yajima Takeaki
Affiliation and department：
Job title：
Associate Professor
Homepage URL (1)：
https://con.ed.kyushu-u.ac.jp/
Research field (3)：
Mathematical physics and basic theory
, Electric/electronic material engineering
, Thin-film surfaces and interfaces
Research keywords (8)：
energy harvesting
, neuromorphic
, proton
, vanadium dioxide
, low power
, Mott transistor
, phase transition
, oxide electronics
Research theme for competitive and other funds (20)：
- 2022 - 2027 Biomimetic general-purpose power supply circuit for autonomous sensor nodes
- 2019 - 2025 Edge real-time learning platform using spiking net
- 2021 - 2023 楽して安全、振動発電を用いた電池フリー無線センサの事業化とその応用展開
- 2021 - 2023 Development of hybrid vibrational energy harvester based on smart mechatronics
- 2020 - 2023 固体中プロトンを利用した0.1Vエレクトロニクスの創成
- 2020 - 2023 ゲート誘起相転移の律速過程解明による相転移トランジスタ高速化の研究
- 2019 - 2022 Ultra-high-k perovskite oxide capacitors for future DRAMs based on the engineering of k-value, Fermi-level in oxide, and oxide-to-oxide band alignment
- 2018 - 2022 Concerted research in physics of anomalous phenomena around metal-insulator transition and development of neuromorphic devices
- 2020 - 2021 最適な食事の学習に向けた消化器系フィードバック情報のセンシング技術
- 2017 - 2021 Development of circuit technology for energy harvesting using resistive switching materials
- 2017 - 2020 Device physics of low-voltage transistors using gate-induced phase transitions
- 2017 - 2019 Study on AI-oriented analog devices based on oxide proton control
- 2015 - 2017 Operation mechanism of VO2-channel Mott transistors and their low-voltage operation
- 2015 - 2016 Development of neuromorphic devices using electric oscillation in VO2
- 2015 - 2016 Transfer technique of ferroelectric thin films and its application to high pressure sensor sheet
- 2015 - 2016 Study on negative capacitance using the electronic structural change in VO2 phase transition
- 2015 - 2016 Study on artificial neuron device using vanadium dioxide for neural network
- 2014 - 2015 Electrochemical ion doping to semiconductors and oxide CMOS devices
- 2013 - 2014 Low-power nonvolatile memory using electronic collective phenomena in VO2
- 2011 - 2012 Blue/UV light emitting diode via dipole-induced hole doping to oxide semiconductor
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Papers (82)：
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Satya Prakash Pati, Yifan Geng, Satoshi Hamasuna, Kantaro Fujiwara, Tetsuya Iizuka, Hisashi Inoue, Isao Inoue, Takeaki Yajima. Real-time information processing via volatile resistance change in scalable protonic devices. Communications Materials. 2024. 5. 1
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Satya Prakash Pati, Takeaki Yajima. Review of solid-state proton devices for neuromorphic information processing. Japanese Journal of Applied Physics. 2024. 63. 3. 030801-030801
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Keisuke Takano, Takeaki Yajima, Satoshi Kawakami. Design of The Ultra-Low-Power Driven VMM Configurations for μW Scale IoT Devices. 2023 IEEE 16th International Symposium on Embedded Multicore/Many-core Systems-on-Chip (MCSoC). 2023
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Takeaki Yajima. Resonant frequency modulation in inductive vibration power generator via resistive impedance control. IEEE Transactions on Power Electronics. 2023. 39. 1. 1269-1278
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Hisashi Inoue, Hiroto Tamura, Ai Kitoh, Xiangyu Chen, Zolboo Byambadorj, Takeaki Yajima, Yasushi Hotta, Tetsuya Iizuka, Gouhei Tanaka, Isao H. Inoue. Long-time-constant leaky-integrating oxygen-vacancy drift-diffusion FET for human-interactive spiking reservoir computing. 2023 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits). 2023
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MISC (7)：
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Takeaki Yajima. Energy-saving IoT technology learned from biological neural circuits. Applied Physics. 2024. 93. 5. 289-293
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Takeaki YAJIMA. Energy-saving Electronics Based on the Analogy of Neural Circuits. The Journal of The Institute of Electrical Engineers of Japan. 2024. 144. 2. 84-87
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Takeaki Yajima. Low Power IoT Circuit Technology Using Spiking Neuron Circuits. Functional Materials. 2021. 41. 3. 37-43
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Takeaki Yajima. Study on Circuit Technologies Using Metal-Insulator Transition Materials. IEICE JPN Ed.C. 2020. J103-C. 10. 420-427
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T. Yajima, Y. Hikita, M. Minohara, C. Bell, J. A. Mundy, L. Fitting Kourkoutis, D. A. Muller, H. Kumigashira, M. Oshima, H. Y. Hwang. Engineering Artificial Interface Dipoles at Oxide Heterointerfaces. PF Activity Report. 2015. 32. 13
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Patents (14)：
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昇圧装置および昇圧システム(*1mVから昇圧できる熱電発電用昇圧回路)
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Electrical power circuit and module
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モジュール回路、及びレザバー回路(*CMOS回路でレザバーコンピューティングを実装する技術)
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Vibration power generators and energy harvesting circuits
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Spiking neuron circuit and system
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Books (1)：
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環境発電ハンドブック 第2版
エヌ・ティー・エス 2021 ISBN:9784860437480
Lectures and oral presentations (48)：
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In-memory computing with volatile proton devices
(International Workshop on Iontronics 2024 2024)
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In-memory computing with volatile proton devices
(Mini crossover seminar on functional materials 2024 2024)
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Low-power IoT with neuromorphic technology
(JSAP Autumun 2024)
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EH-driven IoT devices with energy-saving power circuits
(2024)
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Energy-saving IoT technology learned from biological neural circuits
(2024)
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Education (4)：
- 2009 - 2012 The University of Tokyo Graduate School of Frontier Science Department of Advanced Materials Science
- 2005 - 2007 The University of Tokyo Department of Applied Physics
- 2003 - 2005 The University of Tokyo Natural Sciences I
- 2000 - 2003 Hakuryo high school
Professional career (1)：
- Doctor (The University of Tokyo)
Work history (5)：
- 2020/10 - 現在 Kyushu University Faculty of Information Science and Electrical Engineering Department of Information Electronics
- 2017/10 - 2021/03 JST Presto researcher
- 2012/08 - 2020/09 The University of Tokyo Department of Materials Engineering Assistant Professor
- 2011/08 - 2012/07 Stanford University SLAC National Accelerator Laboratory Visiting Scientist
- 2011/04 - 2012/07 JST DC2
Committee career (15)：
- 2023/11 - 現在 SSDM2024-25 Executive comittee (secretary)
- 2023/04 - 現在 応用物理学会 中分類(酸化物エレクトロニクス) プログラム委員
- 2021/07 - 現在 Neuromorph Center External committee member
- 2020/10 - 現在 Silicon Nanoelectronics Workshop Technical Program Committee
- 2019/12 - 現在 The System Device Roadmap Committee of Japan (SDRJ) More than Moore working group secretary
- 2019/11 - 現在 JSAP Total Biomimetics Research Group Planning secretary
- 2018/04 - 現在 Energy Harvesting Consortium Observer
- 2017/01 - 現在 Electron Devices and Interface Technology Society Executive committee
- 2023/03 - 2023/03 JSAP Sympozium Organizer
- 2020/05 - 2022/03 JSAP Multidisciplinary Young Researcher Chapter Deputy
- 2021/04 - 2021/08 第2回トータルバイオミメティクス研究会「脳機能から考えるレザバーコンピューティングの未来」 代表企画者
- 2018/11 - 2019/03 International Workshop on Materials Science & Device Physics for Advanced Electron Devices Executive Committee
- 2017/10 - 2018/09 SSDM 2018 Executive Committee
- 2017/06 - 2018/01 23th Electron Device and Interface Technology Workshop, Special session "Technology for post-deep learning neurochips." Main organizer
- 2016/09 - 2017/03 JSAP 2017 symposium "The role of functional oxides in next-generation neuromorphic hardware." Main organizer
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Awards (15)：
- 2022/04 - Ministry of Education, Culture, Sports, Science and Technology Young Scientist Award by Minister of Education, Culture, Sports, Science and Technology Research on power-saving information processing based on oxide functions
- 2019/10 - International Workshop on Oxide Electronics The Oxide Electronics Prize for Excellency in Research
- 2019/09 - SSDM 2019 Young Researcher Award New Operation Mode of VO2-Channel Mott Transistors for Ultra-Sharp ON/OFF Switching
- 2019/01 - JST PREST Exchange Meeting, Poster Award Development of sub-nW ultra-low-power circuit inspired by neuronal network
- 2018/09 - Japan Society of Applied Physics 40th Japan Society of Applied Physics Paper Award Reexamination of Fermi level pinning for controlling Schottky barrier height at metal/Ge interface.
- 2017/11 - NF Foundation R & D Encouragement Award Study on low power electronic devices using oxide metal insulator transition
- 2017/09 - Japan Society of Applied Physics Poster Award Fabrication of Phase-Transition Neuron Firing by Joule Heat Accumulation
- 2017/09 - Japan Society of Applied Physics The 8th Silicon Technology Division Award Reexamination of Fermi level pinning for controlling Schottky barrier height at metal/Ge interface.
- 2014/02 - 19th Gate Stack Society Yasuda Award Inhomogeneity mitigation in VO2 phase transition by using epitaxial ultra-thin films
- 2012/07 - Fuji Sankei Business Eye, Frontier Technology Award 26th Innovative Frontier Technology Award Interface dipole engineering at perovskite heterointerfaces and the application to transistors
- 2012/02 - Conference on the Physics and Chemistry of Surfaces and Interfaces Young Scientist Award Artificial Interface Dipoles at Oxide Heterointerfaces
- 2011/07 - Photon Factory Poster Award Controlling Band Alignments by Engineering Interface Dipoles at Oxide Heterointerfaces
- 2011/04 - Material Research Society Graduate Student Award Controlling Band Alignments by Engineering Interface Dipoles at Oxide Heterointerfaces
- 2010/09 - Japan Society of Applied Physics Presentation Award Increase of SrRuO3/Nb:SrTiO3(001) Schottky barrier height by (SrAlO3)- negative charge insertion
- 2007/03 - Department of Applied Physics, The University of Tokyo Bachelor Thesis Award Electronic and ionic reconstructions at LaMnO3/SrTiO3 interface
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Association Membership(s) (5)：
JSAP Silicon Technology Devision
, IEEE
, JAPANESE NEURAL NETWORK SOCIETY
, THE JAPAN SOCIETY OF APPLIED PHYSICS
, Material Research Society
