Masaki Umayabashi

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Diagnostic system
- Patent number 9,369,359
- Issue date Jun 14, 2016
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Delay measurement system and delay measurement method, as well as d...
- Patent number 9,300,558
- Issue date Mar 29, 2016
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission system, transmission device, packet loss ratio measure...
- Patent number 9,264,332
- Issue date Feb 16, 2016
- NEC Corporation
- Akira Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Node, a monitoring management method used for a node, and a transfe...
- Patent number 8,897,308
- Issue date Nov 25, 2014
- NEC Corporation
- Zhenlong Cui
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Congestion detecting method and communication node
- Patent number 8,737,238
- Issue date May 27, 2014
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet filter-based clock synchronization system, apparatus, and me...
- Patent number 8,731,036
- Issue date May 20, 2014
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet transmission system and fault recovery method
- Patent number 8,711,686
- Issue date Apr 29, 2014
- NEC Corporation
- Kazuo Takagi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Clock synchronization system, its method and program
- Patent number 8,675,665
- Issue date Mar 18, 2014
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Node, network, correspondence relationship generation method and fr...
- Patent number 8,565,124
- Issue date Oct 22, 2013
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frame transfer route confirmation method, node, frame transfer rout...
- Patent number 8,218,446
- Issue date Jul 10, 2012
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Node, network system, frame transfer method, and frame transfer pro...
- Patent number 8,094,584
- Issue date Jan 10, 2012
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network system, spanning tree configuration method, spanning tree c...
- Patent number 7,894,374
- Issue date Feb 22, 2011
- NEC Corporation
- Nobuyuki Enomoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network system, spanning tree configuration method, spanning tree c...
- Patent number 7,855,981
- Issue date Dec 21, 2010
- NEC Corporation
- Nobuyuki Enomoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frame transfer method and node in Ethernet
- Patent number 7,783,705
- Issue date Aug 24, 2010
- NEC Corporation
- Youichi Hidaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication system including several communication terminals and...
- Patent number 7,646,789
- Issue date Jan 12, 2010
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network system, spanning tree configuration method and configuratio...
- Patent number 7,532,588
- Issue date May 12, 2009
- NEC Corporation
- Nobuyuki Enomoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiring control method, node using the method, and control program
- Patent number 7,324,440
- Issue date Jan 29, 2008
- NEC Corporation
- Kazuo Takagi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet communication system, network side device and terminal side...
- Patent number 7,239,637
- Issue date Jul 3, 2007
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication system capable of efficiently transmitting data from...
- Patent number 7,200,155
- Issue date Apr 3, 2007
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for assigning time slots in communication system...
- Patent number 7,012,929
- Issue date Mar 14, 2006
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Delay-compensated timeslot assignment method and system for point-t...
- Patent number 6,891,856
- Issue date May 10, 2005
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet communication system, network-side apparatus to be used ther...
- Patent number 6,747,990
- Issue date Jun 8, 2004
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bandwidth allocation system of virtual path in communication networ...
- Patent number 6,542,467
- Issue date Apr 1, 2003
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
COMMUNICATION SYSTEM, TRANSMISSION APPARATUS, COMMUNICATION APPARAT...
- Publication number 20140347979
- Publication date Nov 27, 2014
- NEC Corporation
- Hiroshi Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DIAGNOSTIC SYSTEM
- Publication number 20140341044
- Publication date Nov 20, 2014
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION SYSTEM, TRANSMISSION DEVICE, PACKET LOSS RATIO MEASURE...
- Publication number 20140146686
- Publication date May 29, 2014
- Akira Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DELAY MEASUREMENT SYSTEM AND DELAY MEASUREMENT METHOD, AS WELL AS D...
- Publication number 20130170390
- Publication date Jul 4, 2013
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMMUNICATION APPARATUS, PACKETIZATION PERIOD CHANGE METHOD, AND PR...
- Publication number 20130028272
- Publication date Jan 31, 2013
- NEC Corporation
- Naoki Tohda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
NODE, A MONITORING MANAGEMENT METHOD USED FOR IT, AND A TRANSFER SY...
- Publication number 20120219003
- Publication date Aug 30, 2012
- NEC Corporation
- Zhenlong Cui
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CONGESTION DETECTING METHOD AND COMMUNICATION NODE
- Publication number 20120113820
- Publication date May 10, 2012
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PACKET TRANSMISSION SYSTEM AND FAULT RECOVERY METHOD
- Publication number 20120051214
- Publication date Mar 1, 2012
- KAZUO TAKAGI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMMUNICATION APPARATUS, COMMUNICATION SYSTEM AND COMMUNICATION METHOD
- Publication number 20120020232
- Publication date Jan 26, 2012
- DAISUKE YOSHIOKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PACKET-FILTER-USED CLOCK SYNCHRONIZATION SYSTEM, APPARATUS, METHOD...
- Publication number 20110228834
- Publication date Sep 22, 2011
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CLOCK SYNCHRONIZATION SYSTEM, ITS METHOD AND PROGRAM
- Publication number 20100309934
- Publication date Dec 9, 2010
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
NODE, NETWORK SYSTEM, FRAME TRANSFER METHOD, AND FRAME TRANSFER PRO...
- Publication number 20100232322
- Publication date Sep 16, 2010
- NEC CORPORATION
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CLOCK SYNCHRONIZATION SYSTEM
- Publication number 20090257458
- Publication date Oct 15, 2009
- NEC Corporation
- Zhenlong Cui
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FRAME TRANSFER ROUTE CONFIRMATION METHOD, NODE, FRAME TRANSFER ROUT...
- Publication number 20090122800
- Publication date May 14, 2009
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Node, Network, Correspondence Relationship Generation Method and Fr...
- Publication number 20080165705
- Publication date Jul 10, 2008
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Multiring control method, node using the method, and control program
- Publication number 20080159126
- Publication date Jul 3, 2008
- NEC Corporation
- Kazuo Takagi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Network system, spanning tree configuration method, spanning tree c...
- Publication number 20080159174
- Publication date Jul 3, 2008
- NEC Corporation
- Nobuyuki Enomoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
NETWORK SYSTEM, NODE, NODE CONTROL PROGRAM, AND NETWORK CONTROL METHOD
- Publication number 20070258359
- Publication date Nov 8, 2007
- NEC Corporation
- Daisaku OGASAWARA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Communication system and communication method
- Publication number 20070127367
- Publication date Jun 7, 2007
- Daisaku Ogasahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Network system, learning bridge node, learning method and its program
- Publication number 20040225725
- Publication date Nov 11, 2004
- NEC Corporation
- Nobuyuki Enomoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Network system, spanning tree configuration method and configuratio...
- Publication number 20040160904
- Publication date Aug 19, 2004
- NEC Corporation
- Nobuyuki Enomoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Communication system capable of efficiently transmitting data from...
- Publication number 20040093422
- Publication date May 13, 2004
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Frame transfer method and node in network, and frame transfer program
- Publication number 20040047353
- Publication date Mar 11, 2004
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Network system, spanning tree configuration method, spanning tree c...
- Publication number 20040047300
- Publication date Mar 11, 2004
- NEC Corporation
- Nobuyuki Enomoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Frame transfer method and node in Ethernet
- Publication number 20040039832
- Publication date Feb 26, 2004
- NEC Corporation
- Youichi Hidaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Multiring control method, node using the method, and control program
- Publication number 20030147345
- Publication date Aug 7, 2003
- NEC Corporation
- Kazuo Takagi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Communication system, communication terminal, server and data trans...
- Publication number 20030142626
- Publication date Jul 31, 2003
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Communication system including several communication terminals and...
- Publication number 20030142693
- Publication date Jul 31, 2003
- NEC Corporation
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Multiplexing transmission system and its data transfer method
- Publication number 20030043857
- Publication date Mar 6, 2003
- NEC Corporation
- Kazuo Takagi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BANDWIDTH ALLOCATION SYSTEM OF VIRTUAL PATH IN COMMUNICATION NETWOR...
- Publication number 20030026290
- Publication date Feb 6, 2003
- Masaki Umayabashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Masaki Umayabashi

Person

Patents Grantslast 30 patents

Diagnostic system

Delay measurement system and delay measurement method, as well as d...

Transmission system, transmission device, packet loss ratio measure...

Node, a monitoring management method used for a node, and a transfe...

Congestion detecting method and communication node

Packet filter-based clock synchronization system, apparatus, and me...

Packet transmission system and fault recovery method

Clock synchronization system, its method and program

Node, network, correspondence relationship generation method and fr...

Frame transfer route confirmation method, node, frame transfer rout...

Node, network system, frame transfer method, and frame transfer pro...

Network system, spanning tree configuration method, spanning tree c...

Network system, spanning tree configuration method, spanning tree c...

Frame transfer method and node in Ethernet

Communication system including several communication terminals and...

Network system, spanning tree configuration method and configuratio...

Multiring control method, node using the method, and control program

Packet communication system, network side device and terminal side...

Communication system capable of efficiently transmitting data from...

System and method for assigning time slots in communication system...

Delay-compensated timeslot assignment method and system for point-t...

Packet communication system, network-side apparatus to be used ther...

Bandwidth allocation system of virtual path in communication networ...

Patents Applicationslast 30 patents

COMMUNICATION SYSTEM, TRANSMISSION APPARATUS, COMMUNICATION APPARAT...

DIAGNOSTIC SYSTEM

TRANSMISSION SYSTEM, TRANSMISSION DEVICE, PACKET LOSS RATIO MEASURE...

DELAY MEASUREMENT SYSTEM AND DELAY MEASUREMENT METHOD, AS WELL AS D...

COMMUNICATION APPARATUS, PACKETIZATION PERIOD CHANGE METHOD, AND PR...

NODE, A MONITORING MANAGEMENT METHOD USED FOR IT, AND A TRANSFER SY...

CONGESTION DETECTING METHOD AND COMMUNICATION NODE

PACKET TRANSMISSION SYSTEM AND FAULT RECOVERY METHOD

COMMUNICATION APPARATUS, COMMUNICATION SYSTEM AND COMMUNICATION METHOD

PACKET-FILTER-USED CLOCK SYNCHRONIZATION SYSTEM, APPARATUS, METHOD...

CLOCK SYNCHRONIZATION SYSTEM, ITS METHOD AND PROGRAM

NODE, NETWORK SYSTEM, FRAME TRANSFER METHOD, AND FRAME TRANSFER PRO...

CLOCK SYNCHRONIZATION SYSTEM

FRAME TRANSFER ROUTE CONFIRMATION METHOD, NODE, FRAME TRANSFER ROUT...

Node, Network, Correspondence Relationship Generation Method and Fr...

Multiring control method, node using the method, and control program

Network system, spanning tree configuration method, spanning tree c...

NETWORK SYSTEM, NODE, NODE CONTROL PROGRAM, AND NETWORK CONTROL METHOD

Communication system and communication method

Network system, learning bridge node, learning method and its program

Network system, spanning tree configuration method and configuratio...

Communication system capable of efficiently transmitting data from...

Frame transfer method and node in network, and frame transfer program

Network system, spanning tree configuration method, spanning tree c...

Frame transfer method and node in Ethernet

Multiring control method, node using the method, and control program

Communication system, communication terminal, server and data trans...

Communication system including several communication terminals and...

Multiplexing transmission system and its data transfer method

BANDWIDTH ALLOCATION SYSTEM OF VIRTUAL PATH IN COMMUNICATION NETWOR...