Toshiaki Tsuji

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— This paper focuses on realization of high performance motion control based on acceleration control. A high sampling frequency is known to be effective for improving the performance. Characteristics of acceleration control are investigated and the relationship between the performance and the sampling frequency of the system is discussed. Based on these(More)
This paper describes a collision avoidance method of the biped robot with the upper body. We propose the method that the robot stops in front of an obstacle by generating arm force. When the robot detects the obstacle by the arm tip, it should stop short of the obstacle in order to avoid crush. Hence, in this paper, we propose the method of trajectory(More)
—This paper discusses velocity measurement for motor drives with optical encoders. Although many methods on velocity measurement have been proposed, accurate measurement was not achieved in a high-speed range. This paper therefore proposes " synchronous-measurement method (S method) " that measures the velocity synchronized with alteration of pulse numbers(More)
Android robots that have a human-like appearance have been developed recently. The purpose of android robots is to realize realistic communication between human and robot by implementation of human-like behaviors. Then knowledge and techniques for generating human-like natural motions and behaviors with android robot are required. In face-to-face(More)
  • Keiji Hayata, Makoto Iwahashi, Toshiyasu Ojima, Masahiro Katsuda, Takeshi Iida, Mikihito Nakamori +5 others
  • 2013
It remains controversial whether IL-17A promotes or inhibits cancer progression. We hypothesized that IL-17A that is locally produced in the tumor microenvironment has an important role in angiogenesis and tumor immunity. We investigated the effect of inhibiting IL-17A at tumor sites on tumor growth and on local and systemic anti-tumor immunity. MC38 or B16(More)
— This paper describes a method for command recognition by a haptic interface on a human support robot. Feature quantities are derived from the contact trajectory when an operator runs his finger across the haptic interface. The robot then recognizes a command based on these derived feature quantities from the symbolized contact trajectory. Conforming the(More)
— In exercise therapy, the training program will differ depending on the degree of disability. In order to gradually transition from passive exercise to exercises with more voluntary movements, it is important to reduce the assistance provided by the therapist in stages. Since stiffness control is the key factor of assistance adjustment in robotic movement(More)