Inventor

HAYAKAWA MITSUAKI

JP3 patents

Patents

3 patents

US4806979AFeb 21, 1989

Duplex printing machine

HITACHI KOKI KK42 citations90

US5092579AMar 3, 1992

Mechanism for preventing skew of cut paper sheet

HITACHI KOKI KK19 citations70

US4821077AApr 11, 1989

Cleaner for toner fixing device

HITACHI KOKI KK6 citations57