Katsumi SUGAWA

Person

Miyaji, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Node device and method for synchronizing clock times
- Patent number 8,891,716
- Issue date Nov 18, 2014
- Fujitsu Limited
- Yuji Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Propagation apparatus and dispersion value setting method
- Patent number 8,412,045
- Issue date Apr 2, 2013
- Fujitsu Limited
- Yuki Murakami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical wavelength multiplexing system, optical wavelength multiple...
- Patent number 8,195,052
- Issue date Jun 5, 2012
- Fujitsu Limited
- Makoto Ohtou
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical fiber transmission line measurement apparatus and system
- Patent number 8,189,180
- Issue date May 29, 2012
- Fujitsu Limited
- Koji Bato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical passive device product identification apparatus and connect...
- Patent number 7,733,467
- Issue date Jun 8, 2010
- Fujitsu Limited
- Tatsuo Nagayoshi
- G01 - MEASURING TESTING
Information Patent Grant
High-speed synchronous multiplexing apparatus
- Patent number 6,041,062
- Issue date Mar 21, 2000
- Fujitsu Limited
- Seiichi Yamato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
NODE DEVICE AND METHOD FOR SYNCHRONIZING CLOCK TIMES
- Publication number 20140301513
- Publication date Oct 9, 2014
- Yuji TAKAHASHI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
PROPAGATION APPARATUS AND DISPERSION VALUE SETTING METHOD
- Publication number 20100158537
- Publication date Jun 24, 2010
- FUJITSU LIMITED
- Yuki MURAKAMI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL FIBER TRANSMISSION LINE MEASUREMENT APPARATUS AND SYSTEM
- Publication number 20100097601
- Publication date Apr 22, 2010
- FUJITSU LIMITED
- Koji Bato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS AND RESTART CONTROL METHOD
- Publication number 20090116834
- Publication date May 7, 2009
- FUJITSU LIMITED
- Katsumi Sugawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL PASSIVE DEVICE PRODUCT IDENTIFICATION APPARATUS AND CONNECT...
- Publication number 20080231843
- Publication date Sep 25, 2008
- FUJITSU LIMITED
- Tatsuo NAGAYOSHI
- G01 - MEASURING TESTING
Information Patent Application
Optical wavelength multiplexing system, optical wavelength multiple...
- Publication number 20080138074
- Publication date Jun 12, 2008
- FUJITSU LIMITED
- Makoto Ohtou
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical wavelength multiplex transmission apparatus, control method...
- Publication number 20080037991
- Publication date Feb 14, 2008
- FUJITSU LIMITED
- Katsumi Sugawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for controlling level of each signal included...
- Publication number 20070047960
- Publication date Mar 1, 2007
- FUJITSU LIMITED
- Takeshi Noma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Katsumi SUGAWA

Person

Patents Grantslast 30 patents

Node device and method for synchronizing clock times

Propagation apparatus and dispersion value setting method

Optical wavelength multiplexing system, optical wavelength multiple...

Optical fiber transmission line measurement apparatus and system

Optical passive device product identification apparatus and connect...

High-speed synchronous multiplexing apparatus

Patents Applicationslast 30 patents

NODE DEVICE AND METHOD FOR SYNCHRONIZING CLOCK TIMES

PROPAGATION APPARATUS AND DISPERSION VALUE SETTING METHOD

OPTICAL FIBER TRANSMISSION LINE MEASUREMENT APPARATUS AND SYSTEM

OPTICAL TRANSMISSION APPARATUS AND RESTART CONTROL METHOD

OPTICAL PASSIVE DEVICE PRODUCT IDENTIFICATION APPARATUS AND CONNECT...

Optical wavelength multiplexing system, optical wavelength multiple...

Optical wavelength multiplex transmission apparatus, control method...

Method and apparatus for controlling level of each signal included...