Computer aided design system for logic equipment applied to design of electronic switching equipment. - Tatsuro Hirano; Kazuyuki Hirakawa (DAC, 1973)

Logic simulation for LSI. - Kazuyuki Hirakawa; Noboru Shiraki; Michiaki Muraoka (DAC, 1982)

Automatic routing algorithm for VLSI. - Hiroshi Andou; Ichiro Yamamoto; Yuuko Mori; Yutaka Koike; Kimikatsu Shouji; Kazuyuki Hirakawa (DAC, 1985)

ACTAS: an accurate timing analysis system for VLSI. - Michiaki Muraoka; Hirokazu Iida; Hideyuki Kikuchihara; Michio Murakami; Kazuyuki Hirakawa (DAC, 1985)