Inventor · disambiguated record
Masaki Umayabashi
Also filed as: UMAYABASHI MASAKI
23 granted patents·11 pending applications·258 citations·filing 1999–2012
95Inventor score
Top patents by PatentIndex Score
34 records- 0186US7324440B2Multiring control method, node using the method, and control programNEC CORP·Filed 2003·Granted Jan 29, 2008·42 cites·39 claims
- 0284US8565124B2Node, network, correspondence relationship generation method and frame transfer programUMAYABASHI MASAKI·Filed 2006·Granted Oct 22, 2013·13 cites·54 claims
- 0381US8675665B2Clock synchronization system, its method and programUMAYABASHI MASAKI·Filed 2008·Granted Mar 18, 2014·8 cites·26 claims
- 0479US6542467B2Bandwidth allocation system of virtual path in communication network of asynchronous transfer modeNEC CORP·Filed 1999·Granted Apr 1, 2003·111 cites·20 claims
- 0574US6747990B1Packet communication system, network-side apparatus to be used therein, and time slot allocation control methodNEC CORP·Filed 2000·Granted Jun 8, 2004·20 cites·36 claims
- 0672US8711686B2Packet transmission system and fault recovery methodTAKAGI KAZUO·Filed 2011·Granted Apr 29, 2014·4 cites·19 claims
- 0771US7239637B2Packet communication system, network side device and terminal side device thereof and identifier assigning methodNEC CORP·Filed 2002·Granted Jul 3, 2007·17 cites·19 claims
- 0868US6891856B2Delay-compensated timeslot assignment method and system for point-to-multipoint communication networksNEC CORP·Filed 2001·Granted May 10, 2005·13 cites·19 claims
- 0965US7855981B2Network system, spanning tree configuration method, spanning tree configuration node, and spanning tree configuration programNEC CORP·Filed 2008·Granted Dec 21, 2010·2 cites·40 claims
- 1065US7532588B2Network system, spanning tree configuration method and configuration program, and spanning tree configuration nodeNEC CORP·Filed 2003·Granted May 12, 2009·9 cites·56 claims
- 1164US7012929B2System and method for assigning time slots in communication system and network-side apparatus used thereforNEC CORP·Filed 2001·Granted Mar 14, 2006·6 cites·48 claims
- 1261US9264332B2Transmission system, transmission device, packet loss ratio measurement method, and packet loss ratio measurement programSAKURAI AKIRA·Filed 2012·Granted Feb 16, 2016·2 cites·10 claims
- 1357US7894374B2Network system, spanning tree configuration method, spanning tree configuration node, and spanning tree configuration programNEC CORP·Filed 2003·Granted Feb 22, 2011·3 cites·24 claims
- 1457US7200155B2Communication system capable of efficiently transmitting data from terminals to serverNEC CORP·Filed 2002·Granted Apr 3, 2007·4 cites·40 claims
- 1552US7646789B2Communication system including several communication terminals and server, its communication terminal, its server and data transfer control programNEC CORP·Filed 2003·Granted Jan 12, 2010·2 cites·41 claims
- 1651US2008159126A1Multiring control method, node using the method, and control programNEC CORP·Filed 2007·Application pending·0 cites
- 1750US8731036B2Packet filter-based clock synchronization system, apparatus, and method, and program thereofUMAYABASHI MASAKI·Filed 2009·Granted May 20, 2014·2 cites·13 claims
- 1847US8094584B2Node, network system, frame transfer method, and frame transfer programUMAYABASHI MASAKI·Filed 2007·Granted Jan 10, 2012·0 cites·36 claims
- 1947US7783705B2Frame transfer method and node in EthernetNEC CORP·Filed 2003·Granted Aug 24, 2010·0 cites·18 claims
- 2046US8218446B2Frame transfer route confirmation method, node, frame transfer route confirmation program and frame transfer route confirmation systemUMAYABASHI MASAKI·Filed 2007·Granted Jul 10, 2012·0 cites·40 claims
- 2146US2007127367A1Communication system and communication methodOGASAHARA DAISAKU·Filed 2004·Application pending·0 cites
- 2245US2004047353A1Frame transfer method and node in network, and frame transfer programNEC CORP·Filed 2003·Application pending·0 cites
- 2345US2004225725A1Network system, learning bridge node, learning method and its programNEC CORP·Filed 2003·Application pending·0 cites
- 2444US2003043857A1Multiplexing transmission system and its data transfer methodNEC CORP·Filed 2002·Application pending·0 cites
- 2544US2009257458A1Clock synchronization systemNEC CORP·Filed 2009·Application pending·0 cites
- 2643US2003142626A1Communication system, communication terminal, server and data transfer control programNEC CORP·Filed 2003·Application pending·0 cites
- 2741US9369359B2Diagnostic systemUMAYABASHI MASAKI·Filed 2012·Granted Jun 14, 2016·0 cites·15 claims
- 2841US2014347979A1Communication system, transmission apparatus, communication apparatus, failure notification method, and non-transitory computer-readable medium storing programTANAKA HIROSHI·Filed 2012·Application pending·0 cites
- 2940US2013028272A1Communication apparatus, packetization period change method, and programNEC CORP·Filed 2012·Application pending·0 cites
- 3039US9300558B2Delay measurement system and delay measurement method, as well as delay measurement device and delay measurement programUMAYABASHI MASAKI·Filed 2011·Granted Mar 29, 2016·0 cites·14 claims
- 3139US2007258359A1Network system, node, node control program, and network control methodNEC CORP·Filed 2005·Application pending·0 cites
- 3238US8897308B2Node, a monitoring management method used for a node, and a transfer system, an input circuit and an output circuitCUI ZHENLONG·Filed 2010·Granted Nov 25, 2014·0 cites·25 claims
- 3337US8737238B2Congestion detecting method and communication nodeUMAYABASHI MASAKI·Filed 2010·Granted May 27, 2014·0 cites·14 claims
- 3434US2012020232A1Communication apparatus, communication system and communication methodYOSHIOKA DAISUKE·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →