Inventor
NAKAYASHIKI SUSUMU
JP13 patents
Patents
13 patentsUS4899142AFeb 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
US4435704AMar 6, 1984
Loop transmission system
HITACHI LTD29 citations91
US4506357AMar 19, 1985
Method and apparatus for switching loop type transmission lines
HITACHI LTD30 citations89
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
US4847611AJul 11, 1989
Ring configuration of line concentrators
HITACHI LTD10 citations73
US4984233AJan 8, 1991
Method and apparatus for testing station address in network
HITACHI LTD16 citations72
US4495595AJan 22, 1985
Method and system of loop transmission
HITACHI LTD8 citations70
US5912903AJun 15, 1999
Method and system for quickly transferring data in a network having computers connected therewith
HITACHI LTD10 citations67