Inventor
UMAYABASHI MASAKI
JP23 patents
⚠️ This page may combine multiple inventors who share the name “UMAYABASHI MASAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
12 patentsUS6542467B2Apr 1, 2003
Bandwidth allocation system of virtual path in communication network of asynchronous transfer mode
NEC CORP111 citations97
US7324440B2Jan 29, 2008
Multiring control method, node using the method, and control program
NEC CORP42 citations92
US6747990B1Jun 8, 2004
Packet communication system, network-side apparatus to be used therein, and time slot allocation control method
NEC CORP20 citations92
US7532588B2May 12, 2009
Network system, spanning tree configuration method and configuration program, and spanning tree configuration node
NEC CORP9 citations84
US7239637B2Jul 3, 2007
Packet communication system, network side device and terminal side device thereof and identifier assigning method
NEC CORP17 citations83
US6891856B2May 10, 2005
Delay-compensated timeslot assignment method and system for point-to-multipoint communication networks
NEC CORP13 citations83
US7894374B2Feb 22, 2011
Network system, spanning tree configuration method, spanning tree configuration node, and spanning tree configuration program
NEC CORP3 citations63
US7855981B2Dec 21, 2010
Network system, spanning tree configuration method, spanning tree configuration node, and spanning tree configuration program
NEC CORP2 citations63
US7646789B2Jan 12, 2010
Communication system including several communication terminals and server, its communication terminal, its server and data transfer control program
NEC CORP2 citations62
US7200155B2Apr 3, 2007
Communication system capable of efficiently transmitting data from terminals to server
NEC CORP4 citations62
US7012929B2Mar 14, 2006
System and method for assigning time slots in communication system and network-side apparatus used therefor
NEC CORP6 citations62
US7783705B2Aug 24, 2010
Frame transfer method and node in Ethernet
NEC CORP0 citations52
UMAYABASHI MASAKI
8 patentsUS8565124B2Oct 22, 2013
Node, network, correspondence relationship generation method and frame transfer program
UMAYABASHI MASAKI13 citations83
US8675665B2Mar 18, 2014
Clock synchronization system, its method and program
UMAYABASHI MASAKI8 citations82
US8731036B2May 20, 2014
Packet filter-based clock synchronization system, apparatus, and method, and program thereof
UMAYABASHI MASAKI2 citations60
US8094584B2Jan 10, 2012
Node, network system, frame transfer method, and frame transfer program
UMAYABASHI MASAKI0 citations51
US9369359B2Jun 14, 2016
Diagnostic system
UMAYABASHI MASAKI0 citations40
US8737238B2May 27, 2014
Congestion detecting method and communication node
UMAYABASHI MASAKI0 citations40
US8218446B2Jul 10, 2012
Frame transfer route confirmation method, node, frame transfer route confirmation program and frame transfer route confirmation system
UMAYABASHI MASAKI0 citations40
US9300558B2Mar 29, 2016
Delay measurement system and delay measurement method, as well as delay measurement device and delay measurement program
UMAYABASHI MASAKI0 citations39