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Y. Funahashi is a pioneering researcher in robotic manipulation, specializing in contact condition identification and grasp stability analysis. Their work focuses on enabling robots to autonomously perform complex assembly tasks by accurately sensing and interpreting physical interactions between grasped objects and their environments. Funahashi’s major contributions include developing methods to identify unknown contact parameters—such as contact positions, types, and directions—using active force sensing, even in the presence of sensor noise and contaminated data. Their 2002 paper on parameter identification by active force sensing (26 citations) laid foundational techniques for robust contact estimation. Expanding beyond single-object paradigms, Funahashi’s 2006 study on grasp stability analysis of two objects in two dimensions (23 citations) broke new ground by addressing the stability of multi-object grasps, a critical step toward efficient, real-world robotic handling. With over 78 citations across their most-cited works, Funahashi’s research directly advances the reliability and autonomy of robotic hands in manufacturing and assembly, making their work essential reading for students and engineers in robotics, haptics, and intelligent systems.