Inventor
SAKURAI YOSHITO
JP40 patents
⚠️ This page may combine multiple inventors who share the name “SAKURAI YOSHITO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
39 patentsUS7046630B2May 16, 2006
Packet switching network, packet switching equipment and network management equipment
HITACHI LTD333 citations99
US6512745B1Jan 28, 2003
Packet switching network, packet switching equipment, and network management equipment
HITACHI LTD414 citations99
US4947388AAug 7, 1990
Cell switching system of asynchronous transfer mode
HITACHI LTD149 citations98
US4956839ASep 11, 1990
ATM switching system
HITACHI LTD142 citations97
US5809119ASep 15, 1998
Communication method of supplying information in intelligent network and apparatus therefor
HITACHI LTD96 citations96
US5513177AApr 30, 1996
Distributed switching system having at least one module
HITACHI LTD41 citations96
US5184346AFeb 2, 1993
Switching system
HITACHI LTD90 citations96
US5043979AAug 27, 1991
Time-division channel arrangement
HITACHI LTD31 citations96
US4910731AMar 20, 1990
Switching system and method of construction thereof
HITACHI LTD79 citations96
US5285444AFeb 8, 1994
Multi-stage link switch
HITACHI LTD27 citations93
US5124977AJun 23, 1992
Switching system for switching cells having error detection apparatus
HITACHI LTD37 citations93
US5099475AMar 24, 1992
Switching system
HITACHI LTD49 citations93
US6285675B1Sep 4, 2001
ATM cell switching system
HITACHI LTD15 citations92
US6016317AJan 18, 2000
ATM cell switching system
HITACHI LTD18 citations92
US5740156AApr 14, 1998
Packet switching system having self-routing switches
HITACHI LTD37 citations92
US5506713AApr 9, 1996
Optical switching system
HITACHI LTD23 citations92
US5214640AMay 25, 1993
High-speed packet switching system
HITACHI LTD28 citations92
US5590180ADec 31, 1996
Communication method of supplying information in intelligent network and apparatus therefor
HITACHI LTD19 citations90
US6335934B1Jan 1, 2002
Distributed type switching system
HITACHI LTD9 citations82
US6304570B1Oct 16, 2001
Distributed type switching system
HITACHI LTD9 citations82
US6215788B1Apr 10, 2001
ATM cell switching system
HITACHI LTD11 citations82
US5995510ANov 30, 1999
Distributed type switching system
HITACHI LTD9 citations82
US5734655AMar 31, 1998
Distributed type switching system
HITACHI LTD9 citations82
US6728242B2Apr 27, 2004
ATM cell switching system
HITACHI LTD2 citations74
US6639920B2Oct 28, 2003
Distributed type switching system
HITACHI LTD4 citations74
US6618372B1Sep 9, 2003
Packet switching system having-having self-routing switches
HITACHI LTD7 citations74
US6445703B2Sep 3, 2002
ATM cell switching system
HITACHI LTD7 citations74
US6389025B2May 14, 2002
Distributed type switching system
HITACHI LTD5 citations74
US6314096B1Nov 6, 2001
Packet switching system having self-routing switches
HITACHI LTD11 citations74
US5999537ADec 7, 1999
Packet switching system having self-routing switches
HITACHI LTD5 citations74
US5745495AApr 28, 1998
Apparatus for monitoring and controlling autonomous switching of trunk/subscriber lines in a distributed switching system
HITACHI LTD6 citations74
US5477362ADec 19, 1995
Optical switching system
HITACHI LTD11 citations74
US5164937ANov 17, 1992
Packet concentrator and packet switching system
HITACHI LTD15 citations74
USRE39903EOct 30, 2007
Communication method of supplying information in intelligent network and apparatus therefor
HITACHI LTD4 citations71
USRE36716EMay 30, 2000
Switching system for switching cells having error detection apparatus
HITACHI LTD5 citations63
US6005867ADec 21, 1999
Time-division channel arrangement
HITACHI LTD3 citations63
USRE41472EAug 3, 2010
Communication method of supplying information in intelligent network and apparatus therefor
HITACHI LTD2 citations60
US7058062B2Jun 6, 2006
Packet switching system having self-routing switches
HITACHI LTD1 citations52
US6546011B1Apr 8, 2003
ATM cell switching system
HITACHI LTD0 citations52