A battery is not mounted on the RFID tag, all electric power necessary for communication is covered by electromagnetic wave energy from the reader, so its useful life is extremely long, and it is possible to reduce the size and weight. Utilizing these features, we are developing a system that notifies the replacement timing of paper diapers applying RFID, a system that detects self-removing intravenous drip (IV) needles, a monitoring system of infant posture, a management system of steel surgical tools, etc.

Cardiac pacemakers, defibrillators, blood sugar level monitors, capsule endoscopes, and the like are used to gather biological information using a human body implantable medical device for early detection and treatment of diseases. Since these devices are in the body, they are always having power problems due to size restrictions. Capsule endoscopes are required to have a higher resolution of captured images, multiple numbers of images, etc. Additionally, additional functions such as attitude control, medication devices, etc. are being studied. We are studying wireless power transmission for devices in the body to supply power.

For monitoring and in-vivo wireless power transmission, devices that are attached to the body and communicate with the outside and power transmission pads are required. For these, a flexible wearable device that fits the body and does not hinder movement is required. Also, a flexible sensor corresponding to nursing bed etc. is required. We are researching on sensors and clothing using conductive cloth.