High Performance of an In-Material Reservoir Computing Device Achieved by Complex Dynamics in a Nanoparticle Random Network Memristor Reviewed International journal

Srikimkaew O., Banerjee D., Azhari S., Usami Y., Tanaka H.

ACS Applied Electronic Materials   6 ( 2 )   688 - 695   2024.02

Effect of nonlinearity induced by atomic switch in Ag/Ag<inf>2</inf>S nanoparticles on performance of in-materio reservoir computing Reviewed International journal

Dang T.T., Srikimkaew O., Banerjee D., Azhari S., Usami Y., Tanaka H.

Applied Physics Letters   124 ( 9 )   2024.02

Visualizing Ribbon-to-Ribbon Heterogeneity of Chemically Unzipped Wide Graphene Nanoribbons by Silver Nanowire-Based Tip-Enhanced Raman Scattering Microscopy Reviewed International journal

Inose T., Toyouchi S., Hara S., Sugioka S., Walke P., Oyabu R., Fortuni B., Peeters W., Usami Y., Hirai K., De Feyter S., Uji-i H., Fujita Y., Tanaka H.

Small   20 ( 3 )   2024.01

Short-Term and Long-Term Memory Functionality of a Brain-Like Device Built from Nanoparticle Atomic Switch Networks Invited Reviewed International journal

Srikimkaew O., Azhari S., Banerjee D., Usami Y., Tanaka H.

Advanced Electronic Materials   10 ( 12 )   2024.01

Volatile and Nonvolatile Dual-Mode Switching Operations in an Ag-Ag<inf>2</inf>S Core-Shell Nanoparticle Atomic Switch Network Reviewed International journal

Srikimkaew O., Ricci S., Porzani M., Dang T.T., Nakaoka Y., Usami Y., Ielmini D., Tanaka H.

Advanced Electronic Materials   10 ( 10 )   2024.01

Object recognition and grasping point detection using carbon nanotube - polydimethylsiloxane nanocomposite sensor Invited Reviewed International journal

Tokuno Shoshi, Kimizuka Kouki, Tanaka Yuichiro, Usami Yuki, Tanaka Hirofumi, Tamukoh Hakaru

Nonlinear Theory and Its Applications, IEICE ( The Institute of Electronics, Information and Communication Engineers )   15 ( 4 )   883 - 898   2024.01

Mel-frequency cepstral coefficients feature extracted voice recognition task using atomic switch Ag/Ag₂S device-based time-delayed reservoir computing Invited Reviewed International journal

Karacali Ahmet, Nakao Yusuke, Srikimkaew Oradee, Abdi Gisya, Szacilowski Konrad, Usami Yuki, Tanaka Hirofumi

Nonlinear Theory and Its Applications, IEICE ( The Institute of Electronics, Information and Communication Engineers )   15 ( 4 )   871 - 882   2024.01

Performance improvement of in-materio reservoir computing by noise injection Invited Reviewed International journal

Hakoshima M., Usami Y., Kotooka T., Tanaka H.

Japanese Journal of Applied Physics   62   2023.06

Integration of Wireless Power Transfer Technology With Hierarchical Multiwalled Carbon Nanotubes-Polydimethylsiloxane Piezo-Responsive Pressure Sensor for Remote Force Measurement Reviewed International journal

Azhari S., Kimizuka K., Mehes G., Usami Y., Hayashi Y., Tanaka H., Miyake T.

IEEE Sensors Journal   23 ( 7 )   7902 - 7909   2023.04

分子が学ぶ画像認識 Invited

宇佐美 雄生

化学 ( 株式会社化学同人 )   78 ( 4 )   59 - 60   2023.03

Influence of junction resistance on spatiotemporal dynamics and reservoir computing performance arising from an SWNT/POM 3D network formed via a scaffold template technique Reviewed International journal

Azhari S., Banerjee D., Kotooka T., Usami Y., Tanaka H.

Nanoscale   15 ( 18 )   8169 - 8180   2023.02

Random network device fabricated using Ag2Se nanowires for data augmentation with binarized convolutional neural network Reviewed International journal

Kotooka T., Tanaka Y., Tamukoh H., Usami Y., Tanaka H.

Applied Physics Express   16 ( 1 )   2023.01

In-material reservoir implementation of reservoir-based convolution Reviewed International journal

Tanaka Y., Usami Y., Tanaka H., Tamukoh H.

Proceedings - IEEE International Symposium on Circuits and Systems   2023-May   2023.01

In-materio computing in random networks of carbon nanotubes complexed with chemically dynamic molecules: a review Invited Reviewed International journal

Hirofumi Tanaka, Saman Azhari, Yuki Usami, Deep Banerjee, Takumi Kotooka, Oradee Srikimkaew, Thien-Tan Dang, S Murazoe, R Oyabu, Kouki Kimizuka, Masaya Hakoshima

Neuromorphic Computing and Engineering ( IOP publishing )   2 ( 2 )   022002   2022.05

In-materio Reservoir Working at Low Frequencies in a Ag 2 S-island Network Invited Reviewed International journal

Motoharu Nakajima, Kazuki Minegishi, Yosuke Shimizu, Yuki Usami, Hirofumi Tanaka, Tsuyoshi Hasegawa

Nanoscale ( Royal Society of Chemistry )   14 ( 20 )   7634 - 7640   2022.05

Emergence of In‐Materio Intelligence from an Incidental Structure of a Single‐Walled Carbon Nanotube–Porphyrin Polyoxometalate Random Network Reviewed International journal

Deep Banerjee, Takumi Kotooka, Saman Azhari, Yuki Usami, Takuji Ogawa, James K. Gimzewski, Hakaru Tamukoh, Hirofumi Tanaka

Advanced Intelligent Systems   4 ( 4 )   2100145   2022.01

Room temperature demonstration of in-materio reservoir computing for optimizing Boolean function with single-walled carbon nanotube/porphyrin-polyoxometalate composite Reviewed

Banerjee D., Azhari S., Usami Y., Tanaka H.

Applied Physics Express   14 ( 10 )   2021.10

Performance of Ag-Ag<inf>2</inf>S core-shell nanoparticle-based random network reservoir computing device Reviewed

Hadiyawarman , Usami Y., Kotooka T., Azhari S., Eguchi M., Tanaka H.

Japanese Journal of Applied Physics   60 ( SC )   2021.06

Sacrificial gold coating enhances transport of liquid metal in pressurized fountain pen lithography Reviewed

Livshits G.I., Bao J., Sakamoto L., Misaka T., Usami Y., Otsuka Y., Matsumoto T.

Scientific Reports   11 ( 1 )   4670   2021.02

Conductance enhancement of PCBM thin films by gas-phase Au-doping

Nakajima Tsuyoshi, Misaka Tomoki, Usami Yuki, Otsuka Yoichi, Ohyama Hiroshi, Matsumoto Takuya

Abstract book of Annual Meeting of the Japan Society of Vacuum and Surface Science ( The Japan Society of Vacuum and Surface Science )   2020 ( 0 )   2020.12

Frequency dependence dielectrophoresis technique for bridging graphene nanoribbons Reviewed

Aji W.W., Usami Y., Hadiyawarman , Oyabu R., Tanaka H.

Applied Physics Express   13 ( 10 )   2020.10

Local-field-induced current noise in shape-limited self-doped polyaniline Reviewed

Bao J., Otsuka Y., Etoh R., Usami Y., Matsumoto T.

Nanotechnology   31 ( 36 )   2020.09

Visualization of Charge Migration in Conductive Polymers via Time-Resolved Electrostatic Force Microscopy Reviewed

Kajimoto K., Araki K., Usami Y., Ohoyama H., Matsumoto T.

Journal of Physical Chemistry A   124 ( 25 )   5063 - 5070   2020.06

Toward physical reservoir system composed of polyaniline-Au nanoparticle random network Reviewed

Kawashima Yuya, Usami Yuki, Kotooka Takumi, Tanaka Hirofumi, Matsumoto Takuya

Abstract book of Annual Meeting of the Japan Society of Vacuum and Surface Science ( The Japan Society of Vacuum and Surface Science )   2020 ( 0 )   268   2020.01

Conjugated electrical properties of Au nanoparticle-polyaniline network Reviewed

Usami Y., Otsuka Y., Naitoh Y., Matsumoto T.

Japanese Journal of Applied Physics   56 ( 12 )   2017.12

Intra-grain conduction of self-doped polyaniline Reviewed

Usami Y., Imamura K., Akai T., Che D., Ohoyama H., Kobayashi H., Matsumoto T.

Journal of Applied Physics   120 ( 8 )   2016.08

電気化学ダイナミクスを用いたインマテリオリザバーによる音声分類

宇佐美 雄生, 田中 悠一朗, 田向 権, Wilfred van der Wiel, 松本 卓也, 田中 啓文

第69回応用物理学会春季学術講演会 

Chemical integration of molecular network with electrical nonlinearity toward neuromorphic computing

Yuki Usami, Tomoyo Fukumaru, Yuya Kawashima, Tomoki Misaka, Yoichi Otsuka, Yasuhisa Naitoh, Takuya Matsumo

Pacifichem2021 

In-materio voice classification based on self-doped polyaniline by binarized convolutional neural network

Yuki Usami, Yuichiro Tanaka, Hakaru Tamukoh, Takuya Matsumoto, Wilfred G. van der Wiel, Hirofumi Tanaka

MNC2021 

ポリアニリンネットワークの電気化学的物理リザバー演算機能創製

宇佐美 雄生, Wilfred van der Wiel, 松本 卓也, 田中 啓文

ナノ学会第19回大会 

自己ドープ型ポリアニリンを用いた電気化学的物理リザバーの演算機能創製

宇佐美 雄生, Wilfred van der Wiel, 松本 卓也, 田中 啓文

第68回応用物理学会春季学術講演会 

自己ドープ型ポリアニリンを用いた電気化学制御リザバーコンピューティング

宇佐美 雄生, 松本 卓也, Wilfred G. van der Wiel, 田中 啓文

第30回日本MRS年次大会 

Electrochemical Controlled Neuromorphic Behavior Based on Self-Doped Polyaniline

Yuki Usami, Takuya Matsumoto, Wilfred G. van der Wiel, Hirofumi Tanaka

Electrochemical Controlled Neuromorphic Behavior Based on Self-Doped Polyaniline 

脳神経型情報処理を目指した非線形電子物性を有する分子ネットワークの化学的構築

宇佐美 雄生, 川嶋 悠哉, 福丸 知世, 三坂 朝基, 琴岡 匠, 大塚 洋一, 内藤 泰久, 大山 浩, 田中 啓文, 松本 卓也

第81回応用物理学会秋季学術講演会 

非線形電子物性を有する分子ネットワークの化学的構築と情報処理への応用

宇佐美 雄生, 川嶋 悠哉, 福丸 知世, 三坂 朝基, 琴岡 巧, 大塚 洋一, 内藤 泰久, 大山 浩, 田中 啓文, 松本 卓也

第11回分子アーキテクトニクス研究会 

３次元電気素子及びそれを備えた機械学習システム