Inventor
HARAKAWA TAKESHI
JP9 patents
Patents
9 patentsUS5208811AMay 4, 1993
Interconnection system and method for heterogeneous networks
HITACHI LTD306 citations98
US5058114AOct 15, 1991
Program control apparatus incorporating a trace function
HITACHI LTD89 citations93
US4899142AFeb 6, 1990
Ring network system and configuration control method
HITACHI LTD44 citations91
US4777330AOct 11, 1988
Network system diagnosis system
HITACHI LTD27 citations91
US4763315AAug 9, 1988
Ring communication network system and a method for controlling same
HITACHI LTD28 citations91
US5023871AJun 11, 1991
Method of controlling the operation of stations in a ring network
HITACHI LTD20 citations81
US4887256ADec 12, 1989
Data communication network system and reconfiguration control method
HITACHI LTD18 citations81
US4815069AMar 21, 1989
Data communication network system and reconfiguration control method
HITACHI LTD22 citations81
US4672607AJun 9, 1987
Local area network communication system
HITACHI LTD20 citations81