The Imaging Society of Japan

This presentation introduces a novel supersonic liquid ejection method under development in this laboratory. By using an impulsive force as a driving force, it has become possible to discharge ultra high speed microjets and high viscosity liquids which were difficult to discharge by the conventional ink jet system. We are studying the application of this method to a needle-free systems injecting liquid medicine at high speed into the skin with less pain or contamination. In addition, we look at the future observation and evaluation method mainly for high-speed image measurement as a novel analytical method in the inkjet field.