Besisa Nada H.A.,” Electrochemical impedance spectroscopy of artificial protonic synaptic devices”

iWOE-30, Poster Session P2-28, Sep.2024

Tsuji Masaki,”Stable conductance modulation in WO3-based proton devices via O2 removal”

iWOE-30, Poster Session P2-35, Sep.2024

Shiyuan Sun, Hang Yin, Satoshi Hamasuna, Satya Prakash Pati, Takeaki Yajima,”1 mV-input voltage step-up circuit for ultra-low voltage thermoelectric power generator”

SSDM 2024, F-4-01, Sep.2024

Kota Nishida, Yoshihiro Mido, Noriyuki Miura, Satoshi Kawakami, Jun Shiomi, “Run-time detection of thermal fault injection attacks on optical neural networks”

Research Report of Information Processing Society of Japan, 2016-XXX-XXX (), pp.X-X, Nov.2024(Design Gaia)

Tatsuki Ito, Kazutaka Kanno, Satoshi Kawakami and Atsushi Uchida, “Approximate reservoir computing with semiconductor lasers”

IEICE NOLTA Society Convention NLP-CCS Joint Workshop,pp.XX-XX, Nov.2024.

Tatsuki Ito, Kazutaka Kanno, Satoshi Kawakami and Atsushi Uchida, “Quantization and Energy Consumption in Approximate Reservoir Computing”

Complex Communication Sciences (CCS), Vol.124, No.138, CCS2024-31, pp.16-21, Jul. 2024.

Tatsuki Ito, Kazutaka Kanno, Satoshi Kawakami and Atsushi Uchida, “Quantization and Performance Evaluation of Approximate Reservoir Computing with Light”

IEICE NOLTA Society Convention NLP-CCS Joint Workshop, NLS-4, Jun. 2024

Nyi Nyi Tun and Takeaki, “YajimaDesigning Nonlinearity in a Voltage-controlled Ring Oscillator for Reservoir Computing Hardware”

NOLTA Society,Poster SessionB,NLS-30,Jun.2024

Tesshu Nakamura, Makoto Miyamura, Koji Inoue, Satoshi Kawakami, Toshitsugu Sakamoto, Munehiro Tada and Teruo Tanimoto, “Investigation of surface code decoder architecture utilizing reconfigurability of cryogenic non-volatile FPGAs”

The 248th System Architecture, The 205th System and LSI Design Technologies, The 65th Joint Conference on Embedded Systems(ETNET2024), Mar.2024

Satoshi Kawakami, Takatsugu Ono and Vargas Danilo Vasconcellos, “Architecture Exploration for Opt-Electrical Computing System”

Poster session in International Symposium on Photonic Computing, 11th Mar. 2024

Masaki Tsuji, Kazuya Tsuruda, Satya Prakash Pati and Takeaki Yajima “Study of proton confinement in WO3 two-terminal device by changing atmosphere”

JSAP spring program#24p-12G-2（Tokyo Setagaya, 2024.3）

Kazuya Tsuruda, Masaki Tsuji, Satya Prakash Pati and Takeaki Yajima, “Short-term memory devices using reversible proton transfer at the Pd/MoO3 interface”

JSAP spring program#24p-12G-3（Tokyo Setagaya, 2024.3）

Satoshi Hamasuna, Satya Prakash Pati and Takeaki Yajima, “The evaluation of incubation time in VO2 thermally induced phase transition by microheater heating”

JSAP spring program#24p-12G-7（Tokyo Setagaya, 2024.3）

Geng Yifan and Takeaki Yajima,“Large improvement in blood glucose prediction accuracy by reducing noise in the echo-state network”

JSAP spring program#24a-31A-9（Tokyo Setagaya, 2024.3）

Mitsumasa Nakajima, Kohei Ikeda, Satoshi Kawakami and Toshikazu Hashimoto, “Analog Photonics Simulation Based on Hardware Experiment: Case Studies for Large-Scale AI-Model and LORA-Based Fine Tuning”

JSAP Spring research paper 24a-31A-1, Mar.2024

Shiyuan Sun and Takeaki Yajima,”Simplification of power supply circuits for environmental power generation based on local autonomous control”

IEICE JPN Ed., c-12-11, Hiroshima,Mar.2024

Satoshi Kawakami, “Hybrid Optoelectronic Computer System Architecture Exploration”

International Symposium on Photonic Computing, 12th Mar. 2024

Satoshi Kawakami, “Challenges and Possibilities of Photoelectric Fusion Computer System Architecture”

JACI Electronics and Information Technology Subcommittee Nanophotonics Electronics Exchange Meeting, 27th Fev. 2024

Keisuke Takano, Takeaki Yajima and Satoshi Kawakami, “Design of The Ultra-Low-Power Driven VMM Configurations for μW Scale IoT Devices”

MCSoC 2023, Singapore, 18-21 December 2023

Takeaki Yajima, “Neuromorphic Devices Using Oxide Heterostructures and Protons”(invited)

JSAP Autumn program#20p-A304-6（Kumamoto, 2023.9）

S. P. Pati, S. Hamasuna and T. Yajima,”Empowering Efficiency: Scaling Device Area for Ultra-low-power Dissipation in Protonic Synapses”

The 84th JSAP Autumn meeting 23p-A307-3, Kumamoto-Jo Hall, Kumamoto, Japan,Sep.19-23, 2023

Satoshi Hamasuna, Satya Prakash Pati, Takeaki Yajima、”The dynamic of field induced Metal to Insulator transition in VO2 three-terminal device”

JSAP Autumn program#21a-A307-2（Kumamoto, 2023.9）

Teruo Kanki(Osaka Univ.), Takeaki Yajima(Kyushu Univ.), Takashi Tsuchiya(NIMS)、 ”Frontiers of Energy Conversion Based on Electron and Ion Transport at Surfaces and Interfaces”

JSAP Autumn program#22p-A303-1~7（Kumamoto, 2023.9）

Satya Prakash Pati, Satoshi Hamasuna and Takeaki Yajima “Scaling of Device Area for Ultra-low-power Dissipation in 2-terminal Protonic Artificial Synapses”

SSDM 2023 B-6-03, Nagoya, Sep 8,2023

Satya Prakash Pati, “Towards Ultra Low Power Dissipation in Electronic Devices through Voltage-controlled Phenomena and Device Architecture”

ICLED-2023 SINGAPORE, June 29-July 1,2023

Satoshi Hamasuna, Satya Prakash Pati and Takeaki Yajima, “The Time Scale of Metal-Insulator Transitions by Electrostatic Gating in a Solid-State Three-Terminal VO2 Device”

2023 MRS Spring Meeting & Exhibit, SanFrancisco, April 12, 2023

Satya Prakash Pati, Satoshi Hamasuna and Takeaki Yajima, ”Low-Voltage Control of Synaptic Behavior in WO3 based Two Terminal Protonic Devices”

2023 MRS Spring Meeting & Exhibit, SanFrancisco, April 12, 2023

Satoshi Kawakami, “Next-Generation Computer System Architecture with Emerging Devices: Challenges and Opportunities”

Yonsei University, 12th Dec. 2023

Kuan Yi Ng, Takeshi Nanri, Teruo Tanimoto, Satoshi Kawakami and Koji Inoue, “Analyzing Carbon Footprint Implications of Hardware Replacement: Preliminary Evaluation Targeting CPUs in Supercomputer Systems”

Research Report of Information Processing Society of Japan,2023-ARC-255 (13), pp.1-8, Nov.2023

Makoto Naruse, Michihiro Koibuchi, Satoshi Kawakami, Atsushi Uchida, Tetsuya Kawanishi, Satoshi Sunada and Akifumi Kasamatsu,”Photonic Computing Highlighting Ultimate Nature of Light”

Neuromorphic Natural and Physical Computing: Interdisciplinary Foundations (NNPC), Oct., 2023

Satoshi Kawakami, “Computer Architecture for Photoelectric Fusion Computer Systems”

Open seminar on Optical✕Computing, 27th Oct. 2023

Takumi Inaba, Takatsugu Ono, Koji Inoue and Satoshi Kawakami, “Evaluating floating-point multipliers with opto-electrical hybrid circuits”

Poster session in ACM International Conference on Computing Frontiers (CF), 9th – 11th May 2023

Satoshi Kawakami, “Sharing of Optical Research Trends at the International Symposium on High-Performance Computer Architecture”

ARC x Optical Research Group, 21th Apr.2023

Kenichi Kitayama, Hirotsugu Yamamoto, Hideharu Amano, Masaya Notomi, Tetsuya Kawanishi, Satoshi Kawakami, Akifumi Kasamatsu and Makoto Naruse, “An Approach to Photonic Computing – Approaching the Extreme Performance of Light-“

Creation of Photonic Computing to Take Advantage of the Extreme Performance of Light 2nd Area Conference, 27th Mar.2023

Satoshi Kawakami, “Task Decomposition Theory of Optical and Electrical Systems for Photonic Computing”

IEICE General Conference, Society Special Session,7th Mar.2023

Masamitsu Tanaka, Ikki Nagaoka, Satoshi Kawakami, Teruo Tanimoto, Takatsugu Ono, Koji Inoue, and Akira Fujimaki, “Demonstration of a Superconductor 8-Bit Microprocessor Based on High-Throughput Single-Flux-Quantum Logic Circuits”

The East Asia Symposium on Superconductor Electronics (EASSE), Mar. 2023

Satoshi Kawakami, Takatsugu Ono and Vargas Danilo Vasconcellos, “Integrated evaluation environment for photoelectric fusion computer systems”

Creation of Photonic Computing to Take Advantage of the Extreme Performance of Light 2nd Area Conference, Mar.2023

Eito Sato, Koji Inoue, Satoshi Kawakami, “Design and analysis of nanophotonic accelerators for RNNs”

Creation of Photonic Computing to Take Advantage of the Extreme Performance of Light 2nd Area Conference, Mar.2023

Takumi Inaba, Takatsugu Ono, Koji Inoue and Satoshi Kawakami, “Photoelectric fusion floating-point multiplier”

Creation of Photonic Computing to Take Advantage of the Extreme Performance of Light 2nd Area Conference,Mar.2023

Satoshi Kawakami, Takatsugu Ono and Vargas Danilo Vasconcellos, “System structure research for optimal coupling of optical infrastructure and applications”

Creation of Photonic Computing to Take Advantage of the Extreme Performance of Light 2nd Area Conference, Mar.2023

Tesshu Nakamura, Koji Inoue, Satoshi Kawakami, Toshitugu Sakamoto, Munehiro Tada and Teruo Tanimoto, “RTL Design of Surface Code Decoder for Error Tolerant Quantum Computers for Cryogenic Nonvolatile FPGAs”

Research Report of Information Processing Society of Japan,2023-ARC-252(27), pp.1-10, Mar.2023 (ETNET)

Satoshi Kawakami,”Optical computing research in the architecture field”

ARC x Optical Research Group, 27th Jan. 2023

Satya Prakash Pati, “Towards Ultra Low Power Dissipation in Electronic Devices through Voltage-controlled Phenomena and Device Architecture”(invited)

ICLED-2023 Singapore, Jun 29, 2023

Takeaki Yajima, “Designing neuromorphic devices using protons”(invited)

IWDTF 2023, Oct 24, 2023

Takeaki Yajima, “Neuromorphic information processing using proton”(invited)

Neuromorphic system with new materials and mechanism, Aug 31, 2023

Takeaki Yajima, “Neuromorphic Functional Design Using Solid-State Proton Device”(invited)

The 85th Solid State Ionics Meeting, Jul 21, 2023

Takeaki Yajima, “Edge AI using spiking neural networks and its application to energy harvesting”(invited)

Energy Harvesting Consortium General Meeting, Jun 16, 2023

Satya Prakash Pati, Satoshi Hamasuna, Takeaki Yajima, “Modulation of synaptic behavior in a 2-terminal protonic device through proton potential and applied voltage

JSAP Spring program#18a-A302-6（Yotsuya, 2023.3）

Satoshi Hamasuna, SatyaPrakash Pati, Takeaki Yajima, “Equivalence of gate-induced and temperature-induced phase transitions in VO2 three-terminal devices”

JSAP Spring program#15a-A409-2（Yotsuya, 2023.3）

Takeaki Yajima, “Design of Neuromorphic Information Devices Using Protons”(invited)

JSAP Spring program#16a-A404-7（Yotsuya, 2023.3）

Trends in Power Supply Circuit Technology for Widespread Use of Environmental Power Generation”(invited)

Takeaki Yajima
SDRJ Committee, Jun 11, 2023

Satoshi Kawakami, “Challenges and Opportunities for Optical Computing System Architecture”

Optics & Photonics Japan (OPJ) , 15th Nov.2022

Masamitsu Tanaka, Ikki Nagaoka, Satoshi Kawakami, Teruo Tanimoto, Takatsugu Ono, Koji Inoue, and Akira Fujimaki, “High-Throughput Single-Flux-Quantum Circuits Based on Gate- Level-Pipelining toward Artificial Intelligence Applications”

The Superconducting SFQ VLSI Workshop (SSV), Nov. 2022

Yuta Hano, Iori Ishikawa,Keigo Kamoshida, Satoshi Kawakami, Teruo Tanimoto, Takatsugu Ono, Masamitsu Tanaka and Koji Inoue, “Improving Performance per Power by Tolerating Arithmetic Errors in a Machine Learning Accelerator Using a Single Flux Quantum Circuit”

IEICE Research Report,Dec.2022 (ICD/CAS Study Group)

Aalaa M.A. Babai, Kuan Yi Ng, Teruo Tanimoto, Satoshi Kawakami and Koji Inoue, “Non-Volatile FPGA-based Intermittent Computing and Its Performance Analysis”

Research Report of Information Processing Society of Japan,2022-ARC-250 (14), pp.1-7, Oct.2022 (HotSPA)

Keigo Kamoshida, Iori Ishikawa,Yuta Hano, Satoshi Kawakami, Teruo Tanimoto, Takatsugu Ono, Masamitsu Tanaka, Akira Fujimaki and Koji Inoue, “Study and Quantitative Evaluation of Cache Memory Configuration Methods for Single Flux Quantum Processors”

Research Report of Information Processing Society of Japan,2022-ARC-249 (7), pp.1-10, Jul.2022 (SWoPP)

Satya Prakash Pati, Satoshi Hamasuna, Takeaki Yajima, “An Ultra-low-voltage Synaptic Behavior of WO3/Pd based 2-terminal Protonic Memristive Device”

ssdm2022 H-2-02（online, 2022.9）

Yin Hang and Takeaki Yajima, “Study on 1mV-class boost circuits for thermoelectric power generation”

IEICE Society Conference 2022 program#C-12-1（Online, 2022.9）

Satya Prakash Pati, Satoshi Hamasuna, and Takeaki Yajima, “Ultra-sharp conductance change with proton potential in WO3 heterostructure”

JSAP Autumn program#21a-B204-4（Kawauti-Kita, 2022.9）

Satoshi Hamasuna, Satya Prakash Pati, and Takeaki Yajima, “Study of the rate of insulator transition in VO2 three terminal device”

JSAP Autumn program#21p-C105-10（Kawauti-Kita, 2022.9）

Takeaki Yajima, “Neuromorphic device design for a sustainable society”(invited)

Gakushin R031 Committee on Hybrid Quantum Nanotechnology, 7th meeting, Aug 3, 2022

Satya Prakash Pati, Satoshi Hamasuna, and Takeaki Yajima, “Electrical control of two-terminal protonic device using an amorphous WO3 thin film”

JSAP Spring program#23p-E204-6（Sagamihara, 2022.3).

Satoshi Hamasuna, Satya Prakash Pati, and Takeaki Yajima1, “Strong connection of static and transient characteristics in VO2 metal-insulator transition”

JSAP Spring program#22a-E204-7（Sagamihara, 2022.3).

Takeaki Yajima, “Smart energy extraction from energy harvesters using timing-based asynchronous digital circuits”(invited)

IEEE-NEMS2022, Apr 15, 2022

Takeaki Yajima, “Low-power circuits for energy harvesters based on spiking-neuron delay elements” (invited)

WuMW2021, Apr 4, 2022

Takeaki Yajima, “Next-generation switching devices based on metal-insulator transitions”(invited)

ISPlasma2022, Mar 9, 2022

Satoshi Kawakami, “Challenges and Possibilities of Utilizing Optical Devices from the Perspective of Computer Architecture”

Japan Electronics and Information Technology Industries Association(JEITA) Subcommittee on Device Technology Toward Non-Neumannian Information Processing, 20th Dec. 2021

Satoshi Kawakami, “Towards noise-driven computing”

The Superconducting SFQ VLSI Workshop (SSV), 10th Nov. 2021

Koji Inoue and Satoshi Kawakami, “Towards Ultra-Efficient Nanophotonic AI Acceleration ~ from a computer architecture perspective ~”

Optical Fiber Communication Conference (OFC), Tu1H.1, 6-11th Jun 2021

Satoshi Kawakami, “Optoelectronic Fusion Computing Architecture Using Integrated Nanophotonics”

The Institute of Electronics, Information and Communication Engineers (IEICE) Systems Nano Technology Research Group, 29th Jun 2021

Koji Inoue and Satoshi Kawakami, “Optical Device × Architecture: Pioneering the Next Generation of Optical Computing”

The Institute of Electronics, Information and Communication Engineers (IEICE)Photonic Network Research Group, 3th Mar. 2021

Nanophotonic Neural Network Accelerator

Satoshi Kawakami
The Institute of Electronics, Information and Communication Engineers (IEICE) Telecommunication Systems Research Group, Jun.2021

Design of a bit-width-variable adder using a single-flux quantum circuit

Iori Ishikawa, Ikki Nagaoka, Koki Ishida, Kosuke Fukumitsu, Keitaro Oka, Masamitsu Tanaka, Satoshi Kawakami, Teruo Tanimoto, Takatsugu Ono, Akira Fujimaki and Koji Inoue
LSI and Systems Workshop,May 2021

Prototype design of a neural network accelerator using a single flux quantum circuit

Kosuke Fukumitsu, Koki Ishida, Ikki Nagaoka, Ryouta Kashima, Iori Ishikawa, Keitaro Oka, Masamitsu Tanaka, Satoshi Kawakami, Teruo Tanimoto, Takatsugu Ono, Akira Fujimaki and Koji Inoue
LSI and Systems Workshop,May 2021

Design and Implementation of a CPU-FPGA Hybrid System for Eulerian Video Exaggeration Processing Using Halide

Rin Ueno, Teruo Tanimoto, Takayuki Gotoh, Akira Maruoka, Satoshi Kawakami, Takatsugu Ono, Takuro Iizuka and Koji Inoue
LSI and Systems Workshop,May 2021

Initial Study of Optical Arithmetic Circuits for Simple Recurrent Neural Networks

Eito Satoh, Satoshi Kawakami, Keitaro Oka, Teruo Tanimoto, Takatsugu Ono and Koji Inoue
LSI and Systems Workshop,May 2021

Design of a gate-level pipelined floating-point arithmetic unit based on a single flux quantum circuit

Ikki Nagaoka, Ryota Kashima, Masamitsu Tanaka, Taro Yamashita, Satoshi Kawakami, Koji Inoue and Akira Fujimaki
The Institute of Electronics, Information and Communication Engineers (IEICE) Proceedings of the Society Conference, C-8-18, Sep.2021

Design of Nanophotonic Accelerators for Simple Recurrent Neural Networks

Eito Satoh, Satoshi Kawakami, Keitaro Oka, Teruo Tanimoto, Takatsugu Ono and Koji Inoue
Research Report of Information Processing Society of Japan,2021-ARC-245 (5), pp.1-8, Jul.2021(SWoPP)

Design and Evaluation of a Bit-Width Variable Adder Using a Single Flux Quantum Circuit

Iori Ishikawa, Ikki Nagaoka, Koki Ishida, Kosuke Fukumitsu, Keitaro Oka, Masamitsu Tanaka, Satoshi Kawakami, Teruo Tanimoto, Takatsugu Ono, Akira Fujimaki and Koji Inoue
Research Report of Information Processing Society of Japan,2021-ARC- 244 (15), pp.1-13, May 2021(HotSPA)

Power performance modeling for architectural exploration of superconducting neural network accelerators

Koki Ishida, Ilkwon Byun, Ikki Nagaoka, Kosuke Fukumitsu, Masamitsu Tanaka, Satoshi Kawakami, Teruo Tanimoto, Takatsugu Ono, Akira Fujimaki, Jangwoo Kim and Koji Inoue
Research Report of Information Processing Society of Japan,2020-ARC-244 (15), pp.1-13, Mar.2021 (ETNET), Young Scientist Award

Implementation and Evaluation of a CPU-FPGA Hybrid System for Eulerian Video Exaggeration Processing

Rin Ueno, Teruo Tanimoto, Takayuki Gotoh, Akira Maruoka, Satoshi Kawakami, Takatsugu Ono, Takuro Iizuka and Koji Inoue
Research Report of Information Processing Society of Japan,2021-SLDM-194 (5), pp.1-6, Mar.2021 (ETNET)

Investigation of position map reduction methods in ORAM for implementation in processors

Daisuke Yamagata, Satoshi Kawakami, Koji Inoue and Takatsugu Ono
Symposium on Cryptography and Information Security(SCIS2021), Jan.2021

Codesign of materials and circuits for neuromorphic edge computing (invited)

Takeaki Yajima
Symposium of The Society of Nano Science and Technology, Dec 1, 2021

Circuit for vibration power generation by asynchronous digital control (invited)

Takeaki Yajima
Cutting edge of energy harvesting related technology (Japan Society of Applied Physics Energy Harvesting Research Group), Nov 22, 2021

Ultra-sharp three-terminal switch using nano-scale phase transition material (invited)

Takeaki Yajima
34th International Microprocesses and Nanotechnology Conference (MNC 2021), Oct 28, 2021

Research on low power electronics based on neuron circuits and materials properties (invited)

Takeaki Yajima
Neuromorph Lunch-on Seminar, Oct 20, 2021

Photonic Neural Network Accelerators from a Computer Scientist’s Perspective

Satoshi Kawakami
The Institute of Electronics, Information and Communication Engineers (IEICE)Photonic Network Research Group,24th Aug.2020

Credit interval estimation method for solutions in NISQ

Shuhei Matsuo, Teruo Tanimoto, Satoshi Kawakami, Yutaka Tabuchi, Masao Hirokawa and Koji Inoue
Cross-disciplinary Workshop Quantum Computing Research and Development: Present and Future,Jan.2020

Investigation for QAOA application of quantum computation frequency determination method

Shuhei Matsuo, Teruo Tanimoto, Satoshi Kawakami, Yutaka Tabuchi, Masao Hirokawa and Koji Inoue
Research Report of Information Processing Society of Japan,2020-QS-1 (11), pp.1-7, Oct.2020(Quantum Software Research Group)

Power efficiency modeling of single flux quantum circuits for architecture exploration

Kosuke Fukumitsu, Koki Ishida, Ikki Nagaoka, Masamitsu Tanaka, Satoshi Kawakami, Teruo Tanimoto, Takatsugu Ono, Akira Fujimaki and Koji Inoue
Research Report of Information Processing Society of Japan,2020-ARC-242 (6), pp.1-4, Oct.2020 (HotSPA)

Design and Implementation Evaluation of FPGA Accelerated Execution Using Halide for Eulerian Video Exaggeration Processing

Rin Ueno, Teruo Tanimoto, Takayuki Gotoh, Akira Maruoka, Satoshi Kawakami, Takatsugu Ono, Takuro Iizuka and Koji Inoue
Research Report of Information Processing Society of Japan,2020-ARC-241 (4), pp.1-8, Jul. 2020 (SWoPP)

A Study on Speedup and Output Accuracy of Corner Detection Program by Neural Network

Kazuto Takeuchi, Teruo Tanimoto, Satoshi Kawakami and Kouji Inoue
Research Report of Information Processing Society of Japan,2019-ARC-239 (16), pp.1-7, Jan. 2020

VO2 Mott Transistors for Low-Voltage ON/OFF Switching. (invited)

Takeaki Yajima
21th International Symposium on Eco-materials Processing and Design (ISEPD) (2020, Yantai, China) 2020

Circuit for ultra energy-saving environmental power generation using spiking neurons (invited)

Takeaki Yajima
Spring Symposium of the Japan Society of Applied Physics (Development of Energy Harvesting for a Super Smart Society) (2020, Tokyo, Japan). 2020

How can we exploit noisy intermediate-scale quantum computers? ~A computer architecture perspective~

Teruo Tanimoto, Shuhei Matsuo, Satoshi Kawakami, Yutaka Tabuchi, Masao Hirokawa and Koji Inoue
Cryogenic Devices, Circuits, and Systems (QCCC), 14th Nov. 2019

Performance Analysis for Approximate Optical Computing – Computer Architecture Perspective –

Satoshi Kawakami
The International Workshop of Optical Packet Switching (OPS) and Optical Code Division Multiple Access (OCDMA), IWOO’19, 31st Oct. 2019

Nanophotonic Neural Network Accelerator: Challenges and Opportunities

Satoshi Kawakami
Asia Pacific Society for Computing and Information Technology (APSCIT), 27th Jul. 2019

Second Roundtable Discussion on Post Moore – Can “Light” Computing Shine with “Glitter”? –

Satoshi Kawakami, Jun Shiomi, Akihiko Shinya and Koji Inoue
HotSPA2019 Panel Discussion,11st Jun 2019

Challenges in Ultra-High-Performance Low-Power Nanophotonic Computing – A Computer Architecture Perspective –

Koji Inoue and Satoshi Kawakami
OPTICS & PHOTONICS International Congress, 23rd Apr. 2019

Prototype Design of 32 GHz Microprocessor based on Superconducting Single-Flux-Quantum Logic

Koki Ishida, Masamitsu Tanaka, Ikki Nagaoka, Takatsugu Ono, Satoshi Kawakami, Teruo Tanimoto, Akira Fujimaki and Koji Inoue
The International Conference for High Performance Computing (SC19), Nov. 2019

Performance evaluation environment considering initialization and observation errors of qubits

Syuhei Matsuo, Teruo Tanimoto, Satoshi Kawakami, Yutaka Tabuchi, Masao Hirokawa and Koji Inoue
LSI and Systems Workshop, May 2019

Power Performance Analysis for Realization of Optical Appropriate Computing

Satoshi Kawakami, Teruo Tanimoto, Syota kita, Akihiko Shinya, Takatsugu Ono, Masaya Notomi and Koji Inoue
Research Report of Information Processing Society of Japan,2019-ARC-237 (28), pp.1-8, Jul.2019(SWoPP),Young Scientist Award

Proposal for a High-Performance Cache Architecture for GPUs Based on Data Compression

Keitaro Oka, Satoshi Kawakami, Teruo Tanimoto, Takatsugu Ono and Koji Inoue
Research Report of Information Processing Society of Japan,2019-ARC-236 (3), pp.1-9, Jun.2019(HotSPA)

Analysis of the Effect of Fidelity on Processing Time in NISQ ~Toward the Realization of Classical-Quantum Hybrid Architecture

Syuhei Matsuo, Teruo Tanimoto, Satoshi Kawakami, Yutaka Tabuchi, Masao Hirokawa and Koji Inoue
Research Report of Information Processing Society of Japan,2019-ARC-236 (13), pp.1-10, Jun.2019(HotSPA),Young Scientist Award

Designing Neuron Functionality Based on Phase Transition Materials. (invited)

Takeaki Yajima
Asia-Pacific Workshop on Fundamentals and Applications of Advanced Semiconductor Devices (AWAD) (2019, Busan, Korea). 2019

Impact of Scaling the VO2-Channel Mott Transistor below Material Correlation Length. (invited)

Takeaki Yajima
AIST Seminar (2019, Tsukuba, Japan) 2019

Design of neuromorphic devices using material properties (invited)

Takeaki Yajima
Institute of Electrical and Information Engineers Society Conference 2019, Osaka University. (2019, Osaka, Japan). 2019

Nanophotonic Neural Acceleration – A Computer Architecture Perspective

Koji Inoue and Satoshi Kawakami
The 210th Research Meeting of Silicon Technology Subcommittee,19p-232-5, Sep.2018

Power-Performance Impact of Nanophotonic Vector-by-Matrix Multiplier

Koji Inoue and Satoshi Kawakami
JST Workshop: Novel frontiers of optics for computing, 18th July 2018

Analog neuron circuits based on the phase transition material. (invited)

Takeaki Yajima
AIST Mini Workshop (2018, Tsukuba, Japan). 2018

Simple design of the neuron circuit using phase transition materials. (invited)

Takeaki Yajima
The 2nd Neuromorphic Research Retreat in AIST (2018, Tsukuba, Japan). 2018

Low Power Analog Spike Processing Using Thermal Degrees of Freedom of Phase Transition Materials (invited)

Takeaki Yajima
The 210th Research Meeting of Silicon Technology Subcommittee (2018, Tokyo). 2018

Performance Limitations of Nanophotonic Computing

Satoshi Kawakami, Rina Asai, Takatsugu Ono, Hiroaki Honda, Koji Inoue, Syota Kita and Masaya Notomi
Research Report of Information Processing Society of Japan,2017-ARC-227 (18), pp.1-9, Jul.2017 (SWoPP)

Nanoscale Hydrogen Doping to Oxides Heterointerfaces via Electrochemistry. (invited)

Takeaki Yajima
BIT’s 3rd Annual World Congress of Smart Materials-2017 (2017, Bangkok, Thailand). 2017

Neuron Circuit Design Using Metal-Insulator Transition of VO2 (invited)

Takeaki Yajima
Joint Project Research Group, Research Institute of Electrical Communication, Tohoku University (2017, Sendai, Japan). 2017

Capacitorless Neuron Circuits Using Metal-Insulator Transition Devices (invited)

Takeaki Yajima
The Institute of Electronics, Information and Communication Engineers (IEICE) ICD/SDM/ITE-ISE Study Group (2017, Sapporo, Japan). 2017

Study of the physical properties of VO2 thin films and their application to neuromorphology (invited)

Takeaki Yajima
The 25th Core-to-Core Young Researcher Development Program Seminar (2017, Tokyo, Japan). 2017

Possibility of novel electronic devices and circuits based on the phase transition materials. (invited)

Takeaki Yajima
Technical Committee on Nanoelectronics New Function Creation and Integration Technology, IEEJ (2017, Tokyo, Japan). 2017

Novel electronic devices and circuits based on the phase transition materials. (invited)

Takeaki Yajima
An Interdisciplinary Discussion on New Opportunities in Oxide Research (2017, Fukuoka, Japan) 2017

Novel Functional Passive Devices for Diversified Analog Signal Processing – Fabrication and Application of VO2 Volatile Switches (invited)

Takeaki Yajima
Silicon Materials and Devices Research Group (2017, Tokyo). 2017

Evaluation of activation functions for nanophotonic neural accelerators based on the use of saturable absorbers

Satoshi Isobe, Satoshi Kawakami, Takatsugu Ono, Koji Inoue and Masaya Notomi
Research Report of Information Processing Society of Japan, 2016-ARC-223 (3), pp.1-7, Nov.2016(Design Gaia)

Nanophotonic Neural Acceleration Initiative

Satoshi Kawakami, Satoshi Isobe, Rina Asai, Takatsugu Ono, Toshiyuki Ohtsuka, Hiroaki Honda, Koji Inoue and Masaya Notomi
Research Report of Information Processing Society of Japan, 2016-ARC-223 (2), pp.1-10, Nov.2016(Design Gaia),Young Scientist Award

Collective gate modulation in Mott transistors with ultrathin VO2 channels. (invited)

Takeaki Yajima
Asia-Pacific Workshop on Fundamentals and Applications of Advanced Semiconductor Devices (AWAD) (2016, Hakodate, Japan) 2016

Time Response Characteristics of the VO2 Mott Transistor. (invited)

Takeaki Yajima
JSPS MEETING 2016 (C2C Program) (2016, Juelich, Germany). 2016

Engineering Proton Volatility in Oxides for Two-Terminal Neuromorphic Devices. (invited)

Takeaki Yajima
Neuromorpic: from out-of-equilibrium physics to deep learning (AIST mini-Workshop) (2016, Tsukuba, Japan). 2016

Electrochemical hydrogen doping to oxides heterointerfaces (invited)

Takeaki Yajima
SNU-UT Ad-hoc Workshop on Electronic and ionic processes at heterogeneous interfaces (2016, Tokyo). 2016

Mobility Enhancement and Room Temperature Ion Implantation in TiO2 Channel Transistors (invited)

Takeaki Yajima
The 21st Workshop on Interface Technology for Electronic Devices (2016, Mishima). 2016

Interaction between 2D Electrons and 3D Metal-Insulator Transitions in VO2-Channel Transistors. (invited)

Takeaki Yajima
CEMS Topical Meeting on Oxide Interfaces 2015 (2015, Wako, Japan). 2015

Nanoscale electrochemical doping to wide gap oxide semiconductor. (invited)

Takeaki Yajima
SNU-UT Ad-hoc Workshop on Electronic and ionic processes at heterogeneous interfaces (2015, Seoul, Korea). 2015

Realization of Steep Metal-Insulator Transition by Controlling Transition Stress in VO2 Single Crystal Thin Films (invited)

Takeaki Yajima
Silicon Materials and Devices Research Group (2014, Nagoya). 2014

Performance modeling of many-core speculative execution for model predictive control

Satoshi Kawakami, Akihito Iwanaga, Kouji Inoue and Toshiyuki Ohtsuka
Research Report of Information Processing Society of Japan,2013-ARC-206 (11), pp.1-7, Jul.2013(SWoPP), Young Scientist Award

Artificial interface dipoles at oxide heterointerfaces: fundamentals and devices. (invited)

Takeaki Yajima
SNU-UT Workshop on Oxide Systems for Energy & Electric Applications (2013, Seoul). 2013

Interfacial Dipole Control in Oxide Schottky Junctions and Fabrication of Metal-Based Transistors (invited)

Takeaki Yajima
Autumn Symposium of the Japan Society of Applied Physics “Frontiers of Strongly Correlated Electron Control by Oxide Superstructures (2012, Matsuyama). 2012

Dipole Engineering and Schottky Barrier Height Control at Oxide Hetero-interfaces (invited)

Takeaki Yajima
Commemorative Lecture for the Encouragement Award of the Spring Meeting of the Japan Society of Applied Physics (2011, Atsugi). 2011