Inventor
YANAGI JUNICHIROU
JP20 patents
Patents
20 patentsUS5612959AMar 18, 1997
Multicast communications method
HITACHI LTD164 citations98
US5365519ANov 15, 1994
ATM switch1ng system connectable to I/O links having different transmission rates
HITACHI LTD73 citations97
US5799014AAug 25, 1998
ATM cell switching system
HITACHI LTD30 citations96
US5710770AJan 20, 1998
ATM cell switching system
HITACHI LTD22 citations96
US5394397AFeb 28, 1995
Shared buffer memory type ATM communication system and method with a broadcast facility
HITACHI LTD89 citations96
US5280475AJan 18, 1994
Traffic shaping method and circuit
HITACHI LTD83 citations96
US6075767AJun 13, 2000
Asynchronous transmission mode (ATM) handler
HITACHI LTD60 citations95
US5315581AMay 24, 1994
Hit-less protection switching method and apparatus for ATM transmission lines
HITACHI LTD24 citations93
US5283782AFeb 1, 1994
System switching method and apparatus without loss of signal in cell switching system of asynchronous transfer mode
HITACHI LTD28 citations93
US6339596B1Jan 15, 2002
ATM cell switching system
HITACHI LTD16 citations92
US5894471AApr 13, 1999
ATM network system and connection admission control method
HITACHI LTD52 citations92
US5740158AApr 14, 1998
ATM communication system
HITACHI LTD24 citations90
US5155487AOct 13, 1992
Cell delineation method and cell delineation circuit
HITACHI LTD34 citations89
US6463057B1Oct 8, 2002
ATM cell switching system
HITACHI LTD10 citations82
US5604729AFeb 18, 1997
ATM communication system having a physical loop form with logical start point and end point
HITACHI LTD14 citations79
US5657321AAug 12, 1997
Looped bus system for connecting plural nodes or plural circuit cards
HITACHI LTD9 citations73
US5487062AJan 23, 1996
Looped bus system for connecting plural nodes or plural circuit cards
HITACHI LTD13 citations73
US6330240B1Dec 11, 2001
ATM cell switching system
HITACHI LTD2 citations63
USRE36751EJun 27, 2000
ATM switching system connectable to I/O links having different transmission rates
HITACHI LTD2 citations63
US6396831B1May 28, 2002
ATM cell switching system
HITACHI LTD0 citations52