In This Thin Wisp of Smoke: Dainihon Jochugiku Central Research Institute

This documentary highlights the scientific research, history, and development behind Japan's iconic mosquito coils (Katorisenko) at the Dainihon Jochugiku (KINCHO) Central Research Laboratory. The film provides an inside look at the laboratory's rigorous testing environments, detailing how scientists breed and study harmful insects to evaluate the safety and effectiveness of their products, while reflecting on the invention of the spiral-shaped mosquito coil in Japan, blending scientific innovation with a deep-rooted cultural symbol of Japanese summer.