Eiji Sugawara

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Packet transport network system
- Patent number 9,397,882
- Issue date Jul 19, 2016
- Fujitsu Limited
- Eiji Sugawara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network and fault recovery method
- Patent number 8,971,172
- Issue date Mar 3, 2015
- Fujitsu Limited
- Eiji Sugawara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for packet forwarding
- Patent number 8,705,373
- Issue date Apr 22, 2014
- Fujitsu Limited
- Katsuya Kitamori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication network system, data transmission method, and node ap...
- Patent number 8,605,576
- Issue date Dec 10, 2013
- Fujitsu Limited
- Kenya Takuwa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical ring network system
- Patent number 8,280,244
- Issue date Oct 2, 2012
- Fujitsu Limited
- Eiji Sugawara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet network system
- Patent number 7,986,619
- Issue date Jul 26, 2011
- Fujitsu Limited
- Eiji Sugawara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Path switching ring control apparatus in a synchronous (SDH) networ...
- Patent number 6,021,112
- Issue date Feb 1, 2000
- Fujitsu Limited
- Eiji Sugawara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication system having two opposed data processing units each...
- Patent number 5,619,189
- Issue date Apr 8, 1997
- Fujitsu Limited
- Eiji Sugawara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Tandem connection maintenance system
- Patent number 5,555,248
- Issue date Sep 10, 1996
- Fujitu Limited
- Eiji Sugawara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System for synchronizing real time clock by transmitted real time i...
- Patent number 5,535,251
- Issue date Jul 9, 1996
- Fujitsu Limited
- Eiji Sugawara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subscriber apparatus with ringer generator for sending ringer signa...
- Patent number 5,367,567
- Issue date Nov 22, 1994
- Fujitsu Limited
- Eiji Sugawara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data link protecting system
- Patent number 5,313,456
- Issue date May 17, 1994
- Fujitsu Limited
- Eiji Sugawara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Supervisory system for a primary group digital transmission line
- Patent number 4,896,317
- Issue date Jan 23, 1990
- Fujitsu Limited
- Noboru Nakama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
COMMUNICATION SYSTEM, NODE AND SIGNAL PATH CONTROL METHOD IN COMMUN...
- Publication number 20160366048
- Publication date Dec 15, 2016
- Fujitsu Limited
- Jiro TAKEZAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEM AND METHOD FOR MEASURING TRANSMISSION TIME DIFFERENCE OF SIG...
- Publication number 20160164760
- Publication date Jun 9, 2016
- Fujitsu Limited
- Naohiro WAKABAYASHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PACKET TRANSPORT NETWORK SYSTEM
- Publication number 20140321269
- Publication date Oct 30, 2014
- Fujitsu Limited
- Eiji SUGAWARA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
NETWORK AND FAULT RECOVERY METHOD
- Publication number 20120287779
- Publication date Nov 15, 2012
- Fujitsu Limited
- Eiji SUGAWARA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
APPARATUS AND METHOD FOR PACKET FORWARDING
- Publication number 20120147742
- Publication date Jun 14, 2012
- Fujitsu Limited
- Katsuya KITAMORI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PATH SETTING METHOD AND TRANSMISSION DEVICE
- Publication number 20120140679
- Publication date Jun 7, 2012
- Fujitsu Limited
- Toru INABA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RELAY DEVICE, CONTROL INFORMATION GENERATING METHOD, CONTROL AND IN...
- Publication number 20110292935
- Publication date Dec 1, 2011
- Fujitsu Limited
- Susumu TANEOKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMMUNICATION NETWORK SYSTEM, DATA TRANSMISSION METHOD, AND NODE AP...
- Publication number 20110292791
- Publication date Dec 1, 2011
- Fujitsu Limited
- Kenya TAKUWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMITTER AND CONTROL INFORMATION CONFIGURATION METHOD
- Publication number 20110292941
- Publication date Dec 1, 2011
- Fujitsu Limited
- Koichi YATSU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL RING NETWORK SYSTEM
- Publication number 20100209106
- Publication date Aug 19, 2010
- FUJITSU LIMITED
- Eiji Sugawara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Packet network system
- Publication number 20090003199
- Publication date Jan 1, 2009
- FUJITSU LIMITED
- Eiji Sugawara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Transmission apparatus and concatenation setting method
- Publication number 20040190443
- Publication date Sep 30, 2004
- FUJITSU LIMITED
- Katsuya Kitamori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SDH ring network
- Publication number 20030058789
- Publication date Mar 27, 2003
- Eiji Sugawara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Eiji Sugawara

Person

Patents Grantslast 30 patents

Packet transport network system

Network and fault recovery method

Apparatus and method for packet forwarding

Communication network system, data transmission method, and node ap...

Optical ring network system

Packet network system

Path switching ring control apparatus in a synchronous (SDH) networ...

Communication system having two opposed data processing units each...

Tandem connection maintenance system

System for synchronizing real time clock by transmitted real time i...

Subscriber apparatus with ringer generator for sending ringer signa...

Data link protecting system

Supervisory system for a primary group digital transmission line

Patents Applicationslast 30 patents

COMMUNICATION SYSTEM, NODE AND SIGNAL PATH CONTROL METHOD IN COMMUN...

SYSTEM AND METHOD FOR MEASURING TRANSMISSION TIME DIFFERENCE OF SIG...

PACKET TRANSPORT NETWORK SYSTEM

NETWORK AND FAULT RECOVERY METHOD

APPARATUS AND METHOD FOR PACKET FORWARDING

PATH SETTING METHOD AND TRANSMISSION DEVICE

RELAY DEVICE, CONTROL INFORMATION GENERATING METHOD, CONTROL AND IN...

COMMUNICATION NETWORK SYSTEM, DATA TRANSMISSION METHOD, AND NODE AP...

TRANSMITTER AND CONTROL INFORMATION CONFIGURATION METHOD

OPTICAL RING NETWORK SYSTEM

Packet network system

Transmission apparatus and concatenation setting method

SDH ring network