Max Robotics — Global Service Robot Directory + US Certification

About

Ken Kumakura is a researcher specializing in indoor positioning systems and autonomous robotics, with a particular focus on ultrasonic-based localization technologies. His work centers on developing precise self-localization capabilities for autonomous mobile robots operating in indoor environments — a critical challenge for safe and reliable robotic navigation. Kumakura's most significant contribution lies in his application of spread-spectrum (SS) ultrasonic waves combined with Code Division Multiple Access (CDMA) techniques for accurate 3-D indoor positioning. His 2014 paper on signal tracking accuracy, his most cited work with 13 citations, demonstrated how spread-spectrum ultrasonic signals could be tracked to achieve high-precision distance measurements essential for robot guidance. Complementing this, his 2013 research on code division positioning established frameworks for real-time 3-D coordinate acquisition with rapid response times, addressing the demands of multi-robot environments. A recurring theme across Kumakura's research is enabling human-robot symbiosis through reliable positioning infrastructure — recognizing that multiple autonomous robots operating alongside humans require robust, real-time spatial awareness. With a cumulative citation count reflecting a focused and technically specialized body of work, Kumakura's research provides foundational building blocks for next-generation indoor robotic navigation systems.