Inventor
IKETANI YOZO
JP4 patents
Patents
4 patentsUS4995111AFeb 19, 1991
Ring trip circuit for subscriber telephone
FUJITSU LTD81 citations95
US5311518AMay 10, 1994
ISDN interface circuit and system using the same
FUJITSU LTD68 citations94
US4827505AMay 2, 1989
Subscriber line interface circuit
FUJITSU LTD26 citations91
US4982422AJan 1, 1991
Terminating circuit in a battery feed circuit of an electronic exchange system
FUJITSU LTD11 citations72