Tomoyuki Yokota

Ultrathin bending sensor with ultrahigh robustness and reliability for robotic applications

Hao Liu, Masahito Takakuwa, Michitaka Yamamoto, Shinsuke Nakashima et autres

Soft bending sensors offer high sensitivity and a large deformation range, making them ideal for robotics and healthcare. However, existing sensors made from organic materials often fail under large tensile stresses and long-term bending, limiting their real-world applications. This paper presents the …

jp, gb, us (code pays fourni par la source)

Plug-n-play e-knit with LED-based Sensor Positioning

Yifan Li, Ryo Takahashi, Irmandy Wicaksono, Wakako Yukita et autres

jp, sg (code pays fourni par la source)

Visualization and Analysis of Perfusion Cluster Velocity From a Large Area Near-Infrared Image Sensor

Adithya Naresh, Akihiko Fujisawa, Xingle Wang, Chung-kai Chen et autres

Flexible, large area, image sensors (FLA-IS) can enable the capture of additional biomarkers not found in current wearable devices with discrete optical sensors (d-os). To demonstrate, this study utilizes an in-house, near-infrared sensitive FLA-IS system to collect data from multiple volunteers on …

jp (code pays fourni par la source)

Nationwide epidemiological survey of acute pancreatitis in Japan, 2021: the impact of the COVID-19 pandemic and revised clinical guidelines

Yuichi Tanaka, Atsushi Masamune, Ryotaro Matsumoto, Tetsuya Takikawa et autres

OBJECTIVES: This study aimed to clarify the current clinico-epidemiological characteristics of acute pancreatitis (AP) in Japan. METHODS: We conducted a two-stage nationwide survey of patients with AP treated at selected hospitals in 2021, during the COVID-19 pandemic. The first stage estimated the …

jp (code pays fourni par la source)

Friction Jointing Of Distributed Rigid Capacitors To Stretchable Liquid Metal Coil For Full-Body Wireless Charging Clothing

Takashi Sato, Ryo Takahashi, Wakako Yukita, Tomoyuki Yokota et autres

For full-body wireless power transfer (WPT), a liquid metal (LM)-based meandered textile coil has been proposed. Multiple rigid capacitors must be inserted in a long coil for efficiency; however, the conventional adhesive jointing suffers from the fragile connection between a rubber tube …

jp (code pays fourni par la source)

OriStitch: A Machine Embroidery Workflow to Turn Existing Fabrics into Self-Folding 3D Textiles

Zekun Chang, Yuta Noma, Shuo Feng, Xinyi Yang et autres

OriStitch is a computational fabrication workflow to turn existing flat fabrics into self-folding 3D structures. Users turn fabrics into self-folding sheets by machine embroidering functional threads in specific patterns on fabrics, and then apply heat to deform the structure into a target …

Recent Progress of Flexible Optical Sensor for Biomedical Sensing

Tomoyuki Yokota

Optical bio-imaging is a non-invasive method to measure biological information from outside of the body, such as fluorescent probes, photoacoustic imaging, and near-infrared spectroscopy (NIRS) have been widely used as medical devices. In recent years, along with the development of semiconductor technology, …

jp (code pays fourni par la source)

34‐4: A 270fps Large‐Area Organic Optical Biosensor Array for Digital Physiology and Vein Biometrics

Chung-kai Chen, Xingle Wang, Adithya Naresh, Naoki Takada et autres

This paper presents an optical biosensor system including a TFT (thin‐film transistor) sensor array and silicon IC to capture vein images, record PPG (photoplethysmography) signals and generate blood perfusion images. The sensing area is 1200 mm2 including 21168 pixels and SNR (signal‐to‐noise …

jp (code pays fourni par la source)

(Invited) Flexible Organic Photonic Sensor and Imager

Tomoyuki Yokota

In this talk, I will introduce our recent activity of conformable organic photonic systems. We have developed ultra-flexible and lightweight highly efficient, ultra-flexible, air-stable, three-color, organic light-emitting diodes (OLEDs). The total thickness of the devices, including the substrate and encapsulation layer, is …

jp (code pays fourni par la source)

Flexible pulse oximeter based on organic optical devices

Tomoyuki Yokota, Peter Zalar, Martin Kaltenbrunner, Hiroaki Jinno et autres

Exact Extraction of Transfer Length at Metal/Carbon Nanotube Contacts by Improved Transmission Line Method

Noriyuki Tonouchi, Hiroyuki Endoh, Fumiyuki Nihey, Tomoyuki Yokota et autres

Novel water-soluble bioconjugates of chitosan/aspartame diketopiperazine and their green-fabrication

Tomoyuki Yokota, Tatsuo Kaneko

jp (code pays fourni par la source)