Max Robotics — Global Service Robot Directory + US Certification

About

Hiroshi Toshiyoshi is a pioneering figure in microelectromechanical systems (MEMS) and advanced semiconductor device engineering, whose work bridges flexible electronics, mechanical metamaterials, and next-generation imaging technology. His most impactful contribution is the development of a water-dissolvable ionic gel temperature sensor for "ionic skin" applications—a breakthrough designed for the trillion-sensor era, where devices are left unattended in harsh environments or implanted in living bodies. This work, published in 2020, has garnered 108 citations, reflecting its significance in sustainable, biocompatible sensing. Toshiyoshi has also made notable strides in mechanical metamaterials, demonstrating UV-PDMS structures with adjustable negative-to-zero Poisson’s ratios fabricated via 3D photolithography—a 2025 study that opens new avenues for tunable flexible devices. In the realm of imaging, he achieved a world-first with pixel-parallel three-layer stacked CMOS image sensors, using double-sided hybrid bonding of silicon-on-insulator wafers to enable unprecedented multi-layer integration. These innovations, detailed in papers from 2022 and 2023, showcase his mastery of complex fabrication and his vision for sensors that are both intelligent and environmentally adaptive. Toshiyoshi’s work is essential reading for anyone interested in the future of MEMS, flexible electronics, and high-performance imaging.