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RIKEN Information R&D and Strategy Headquarters Interactive Robot Research Team

Team Leader: Takashi Minato (D.Eng)

Research Summary

Takashi Minato (D.Eng)

In order to develop robots that provide casual and modest support for human daily activities, this team studies robot-human interactions such that humans are not aware of robots’ support.

Specifically, the team will promote research related to the following three themes.

  • *Design of a robot architecture that has cognitive functions and conversation capability
  • *Research on interfaces that enable robots to express natural behavior in interaction with humans
  • *Research and implementation to integrate various functions developed by other teams into one system

Main Research Fields

  • Complex Systems

Related Research Fields

  • Engineering
  • Informatics
  • Interdisciplinary Science & Engineering
  • Mathematical & Physical Sciences
  • Biological Sciences
  • Biology
  • Medicine, Dentistry & Pharmacy
  • Human interface and interaction
  • Intelligent robotics


  • Human-robot interaction
  • Humanoid robot
  • Architecture for robot intelligence
  • Nonverbal communication for human-robot interaction

Selected Publications

  • 1. Alexander Diel, Wataru Sato, Chun-Ting Hsu, and Takashi Minato
    "Differences in configural processing for human versus android dynamic facial expressions"
    Scientific Reports, Vol.13, No. 16952(2023)
  • 2. Carlos T. Ishi, Chaoran Liu, and Takashi Minato
    "An attention-based sound selective hearing support system: evaluation by subjects with age-related hearing loss"
    Proc. of IEEE/SICE International Symposium on System Integrations(2023)
  • 3. Xinyue Li, Carlos T. Ishi, and Ryoko Hayashi
    "Prosodic and voice quality analyses of filled pauses in Japanese spontaneous conversation by Chinese learners and Japanese native speakers"
    Proc. of International Conference on Speech Prosody(2022)
  • 4. Dongsheng Yang, Qianying Liu, Takashi Minato, Shushi Namba, and Shin'ya Nishida
    "Optimizing facial expressions of an android robot effectively: a Bayesian optimization approach"
    Proc. of IEEE-RAS International Conference on Humanoid Robots(2022).
  • 5. Takashi Minato, Kurima Sakai, Takahisa Uchida, and Hiroshi Ishiguro
    "A study of interactive robot architecture through the practical implementation of conversational android"
    Frontiers in Robotics and AI, Vol.9, No.905030(2022)
  • 6. Changzeng Fu, Chaoran Liu, Carlos T. Ishi, and Hiroshi Ishiguro, C-CycleTransGAN
    "A non-parallel controllable cross-gender voice conversion model with CycleGAN and Transformer"
    Proc. of Asia Pacific Signal and Information Processing Association Annual Summit and Conference(2022)
  • 7. Taiken Shintani, Carlos T. Ishi, and Hiroshi Ishiguro
    "Expression of personality by gaze movements of an android robot in multi-party dialogues"
    Proc. of IEEE International Conference on Robot and Human Interactive Communication(2022)
  • 8. Changzeng Fu, Chaoran Liu, Carlos T. Ishi, and Hiroshi Ishiguro
    "An adversarial training based speech emotion classifier with isolated Gaussian regularization"
    IEEE Transactions on Affective Computing, Vol.14, No.8(2022)
  • 9. Bowen Wu, Jiaqi Shi, Chaoran Liu, Carlos T. Ishi, and Hiroshi Ishiguro
    "Controlling the impression of robots via GAN-based gesture generation"
    Proc. of IEEE/RSJ International Conference on Intelligent Robots and Systems(2022)
  • 10. Wataru Sato, Shushi Namba, Dongsheng Yang, Shin'ya Nishida, Carlos T. Ishi, and Takashi Minato.
    "An android for emotional interaction: Spatiotemporal validation of its facial expressions"
    Frontiers in Psychology, Vol.12(2022)

Lab Members

Principal investigator

Takashi Minato
Team Leader

Core members

Carlos Toshinori Ishi
Senior Scientist
Kurima Sakai
Research Scientist
Tomo Funayama
Technical Staff I
Yuka Nakayama
Technical Staff I
Bowen Wu
Special Postdoctoral Researcher
Taiken Shintani
Research Associate

Contact Information

3rd Floor, Advanced Telecommunications Research Institute International
2-2-2 Hikaridai Seika-cho, Sorakugun, Kyoto
619-0288 Japan (Kansai Science City)
Email: takashi.minato [at] riken.jp