A. Kawamata

Improved tuning accuracy design of parallel-allpass-structures-based variable digital filters

G. Stoyanov, A. Kawamata, 1998, ISCAS '98. Proceedings of the 1998 IEEE International Symposium on Circuits and Systems (Cat. No.98CH36187).

Self-Sensing Piezoelectric Actuator using Permittivity Detection

Hiroshi Hosaka, Takeshi Morita, Yoichi Kadota, 2008 .