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Masahiro Sakauchi
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Communication system, communication method, node, and program for node
Patent number
9,461,841
Issue date
Oct 4, 2016
NEC Corporation
Daisaku Ogasahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength path multiplexing/demultiplexing apparatus and wavelengt...
Patent number
9,154,254
Issue date
Oct 6, 2015
NEC Corporation
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Excitation light distribution device, excitation light distribution...
Patent number
9,083,142
Issue date
Jul 14, 2015
NEC Corporation
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multiplexer/demultiplexer and multiplexing/demultiplexing method
Patent number
8,929,734
Issue date
Jan 6, 2015
NEC Corporation
Kenji Mizutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength path multiplexing and demultiplexing optical transmissio...
Patent number
8,917,994
Issue date
Dec 23, 2014
NEC Corporation
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical signal transmission device, optical signal reception device...
Patent number
8,811,817
Issue date
Aug 19, 2014
NEC Corporation
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system, node, terminal, program and communication method
Patent number
8,724,518
Issue date
May 13, 2014
NEC Corporation
Daisaku Ogasahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength path communication node apparatus, wavelength path commu...
Patent number
8,693,880
Issue date
Apr 8, 2014
NEC Corporation
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network node, frame transfer program and frame transfer method
Patent number
8,401,008
Issue date
Mar 19, 2013
NEC Corporation
Daisku Ogasahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet ring network system, packet transfer system, redundancy node...
Patent number
8,072,878
Issue date
Dec 6, 2011
NEC Corporation
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet ring network system, packet forwarding method and node
Patent number
7,920,576
Issue date
Apr 5, 2011
NEC Corporation
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Ring network system, failure recovery method, failure detection met...
Patent number
7,898,942
Issue date
Mar 1, 2011
NEC Corporation
Kazuo Takagi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for transmission of data in packet ring network s...
Patent number
7,848,340
Issue date
Dec 7, 2010
NEC Corporation
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet ring network system and packet transport method
Patent number
7,826,400
Issue date
Nov 2, 2010
NEC Corporation
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL SWITCH CONTROL METHOD, OPTICAL SWITCH CONTROL DEVICE, AND O...
Publication number
20140133800
Publication date
May 15, 2014
NEC Corporation
Tomoyuki Hino
G02 - OPTICS
Information
Patent Application
MONITORING SYSTEM, MONITORING METHOD AND MONITORING PROGRAM
Publication number
20130294770
Publication date
Nov 7, 2013
Tomoyuki Hino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
POWER SAVING CONTROL METHOD AND NODE DEVICE IN OPTICAL COMMUNICATIO...
Publication number
20130279918
Publication date
Oct 24, 2013
Kenji Mizutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
EXCITATION LIGHT DISTRIBUTION DEVICE, EXCITATION LIGHT DISTRIBUTION...
Publication number
20130222890
Publication date
Aug 29, 2013
NEC Corporation
MASAHIRO SAKAUCHI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
WAVELENGTH PATH MULTIPLEXING/DEMULTIPLEXING APPARATUS AND WAVELENGT...
Publication number
20130188950
Publication date
Jul 25, 2013
NEC Corporation
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MULTIPLEXER/DEMULTIPLEXER AND MULTIPLEXING/DEMULTIPLEXING METHOD
Publication number
20130094853
Publication date
Apr 18, 2013
NEC Corporation
Kenji Mizutani
G02 - OPTICS
Information
Patent Application
Optical Signal Transmission Device, Optical Signal Reception Device...
Publication number
20120195594
Publication date
Aug 2, 2012
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WAVELENGTH PATH MULTIPLEXING AND DEMULTIPLEXING OPTICAL TRANSMISSIO...
Publication number
20120033969
Publication date
Feb 9, 2012
NEC Corporation
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PACKET RING NETWORK SYSTEM, PACKET FORWARDING METHOD AND NODE
Publication number
20110158086
Publication date
Jun 30, 2011
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WAVELENGTH PATH COMMUNICATION NODE APPARATUS, WAVELENGTH PATH COMMU...
Publication number
20110116790
Publication date
May 19, 2011
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication System, Node, Terminal and Communication Method and P...
Publication number
20100226377
Publication date
Sep 9, 2010
NEC Corporation
Daisaku Ogasahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM, NODE, TERMINAL, PROGRAM AND COMMUNICATION METHOD
Publication number
20100158002
Publication date
Jun 24, 2010
NEC Corporation
Daisaku Ogasahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PACKET RING NETWORK SYSTEM, PACKET TRANSFER METHOD AND INTERLINK NODE
Publication number
20100034204
Publication date
Feb 11, 2010
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PACKET RING NETWORK SYSTEM, PACKET FORWARDING METHOD AND NODE
Publication number
20100014527
Publication date
Jan 21, 2010
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM, COMMUNICATION METHOD, NODE, AND PROGRAM FOR NODE
Publication number
20090268746
Publication date
Oct 29, 2009
NEC Corporation
Daisaku Ogasahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
NETWORK NODE, FRAME TRANSFER PROGRAM AND FRAME TRANSFER METHOD
Publication number
20090185566
Publication date
Jul 23, 2009
NEC Corporation
Daisaku Ogasahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Ring Network System, Failure Recovery Method, Failure Detection Met...
Publication number
20090052317
Publication date
Feb 26, 2009
Kazuo Takagi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Packet Ring Network System, Packet Transfer System, Redundancy Node...
Publication number
20090034412
Publication date
Feb 5, 2009
NEC Corporation
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PACKET RING NETWORK SYSTEM, METHOD OF CONNECTING PACKET RINGS, AND...
Publication number
20090022168
Publication date
Jan 22, 2009
NEC Corporation
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PACKET RING NETWORK SYSTEM AND PACKET TRANSPORT METHOD
Publication number
20080316918
Publication date
Dec 25, 2008
NEC Corporation
MASAHIRO SAKAUCHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM, NODE DEVICE AND METHOD FOR SETTING CLASSES OF...
Publication number
20080232385
Publication date
Sep 25, 2008
YOSHIHIKO SUEMURA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmission system and optical transmission method
Publication number
20020063934
Publication date
May 30, 2002
Masahiro Sakauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE