focused on how piezoelectric technology is used in Japan:

In Japan, piezoelectric technology is actively integrated into urban life, transportation, and advanced manufacturing as part of the country’s push toward smart cities and sustainable innovation. One well-known application is in crowded public spaces such as Shibuya Station, where experimental piezoelectric floor systems convert the mechanical energy from footsteps into electrical energy. While the power generated is small, it is sufficient for low-energy uses and serves as a powerful demonstration of renewable micro-energy in action. Japan also leads in industrial and medical uses of piezoelectric devices, combining precision engineering with reliability.

Key uses in Japan include:

Energy-harvesting floors in train stations, shopping centers, and event venues, generating electricity for LED lighting, digital signage, and sensors.

Transportation systems, where piezoelectric sensors monitor vibration, stress, and structural health in railways and bridges, improving safety and maintenance efficiency.

Consumer electronics, such as buzzers, microphones, and precision timing components found in devices produced by major Japanese manufacturers.

Medical technology, especially ultrasound imaging and high-precision surgical instruments that rely on piezoelectric transducers.

Industrial automation and robotics, where piezoelectric actuators enable ultra-precise movements used in semiconductor manufacturing and micro-assembly.

Overall, Japan’s use of piezoelectric technology highlights its emphasis on efficiency, miniaturization, and sustainability, turning even simple human actions—like walking—into part of a broader energy-conscious ecosystem.