A 250-MHz single-chip multiprocessor for audio and video signal processing. - Tatsuya Koyama; Keisuke Inoue; Hirokazu Hanaki; Masahiro Yasue; Eiji Iwata (IEEE J. Solid State Circuits, 2001)

Multi-fingered exoskeleton haptic device using passive force feedback for dexterous teleoperation. - Tatsuya Koyama; Ikuo Yamano; Kenjiro Takemura; Takashi Maeno (IROS, 2002)

Development of an ultrasonic clutch for multi-fingered exoskeleton haptic device using passive force feedback for dexterous teleoperation. - Tatsuya Koyama; Kenjiro Takemura; Takashi Maeno (IROS, 2003)

Verification of the cell broadband engineTM processor. - Kanna Shimizu; Sanjay Gupta; Tatsuya Koyama; Takashi Omizo; Jamee Abdulhafiz; Larry McConville; Todd Swanson (DAC, 2006)

Markov random field-based real-time detection of intentionally-captured persons. - Tatsuya Koyama; Yuta Nakashima; Noboru Babaguchi (ICIP, 2012)

Real-time privacy protection system for social videos using intentionally-captured persons detection. - Tatsuya Koyama; Yuta Nakashima; Noboru Babaguchi (ICME, 2013)

Facial expression preserving privacy protection using image melding. - Yuta Nakashima; Tatsuya Koyama; Naokazu Yokoya; Noboru Babaguchi (ICME, 2015)