Yoshinobu Matsukawa

Person

Kawasaki-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Wavelength conversion device and transmission system
- Patent number 11,838,103
- Issue date Dec 5, 2023
- Fujitsu Limited
- Tomoaki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device and method for checking optical connect...
- Patent number 9,900,089
- Issue date Feb 20, 2018
- Fujitsu Limited
- Masahiro Yuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical drop apparatus, optical add apparatus, and optical add/drop...
- Patent number 9,520,959
- Issue date Dec 13, 2016
- Fujitsu Limited
- Yoshinobu Matsukawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device and monitoring method of optical signal
- Patent number 9,332,326
- Issue date May 3, 2016
- Fujitsu Limited
- Akihiro Mukai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission apparatus, transmission system, and method of controll...
- Patent number 9,300,426
- Issue date Mar 29, 2016
- Fujitsu Limited
- Yoshinobu Matsukawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus and optical transmission method
- Patent number 8,699,506
- Issue date Apr 15, 2014
- Fujitsu Limited
- Miwa Taniguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission device, control device, and method of detecting errone...
- Patent number 8,625,984
- Issue date Jan 7, 2014
- Fujitsu Limited
- Yoshinobu Matsukawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
SONET/SDH transmission apparatus
- Patent number 8,374,500
- Issue date Feb 12, 2013
- Fujitsu Limited
- Yoshinobu Matsukawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus
- Patent number 8,005,357
- Issue date Aug 23, 2011
- Fujitsu Limited
- Yoshiyuki Maeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus
- Patent number 7,991,286
- Issue date Aug 2, 2011
- Fujitsu Limited
- Yoshiyuki Maeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Protocol conversion system for data communication between different...
- Patent number 6,400,729
- Issue date Jun 4, 2002
- Fujitsu Limited
- Toru Shimadoi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System for controlling signal transfer between a plurality of devices
- Patent number 5,805,601
- Issue date Sep 8, 1998
- Fujitsu Limited
- Shinichi Takeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
WAVELENGTH CONVERSION DEVICE AND TRANSMISSION SYSTEM
- Publication number 20230024263
- Publication date Jan 26, 2023
- Fujitsu Limited
- Tomoaki WATANABE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE AND METHOD FOR CHECKING OPTICAL CONNECT...
- Publication number 20170250752
- Publication date Aug 31, 2017
- Fujitsu Limited
- Masahiro YUKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE, METHOD FOR VERIFYING CONNECTION, AND W...
- Publication number 20160315701
- Publication date Oct 27, 2016
- Fujitsu Limited
- Masahiro YUKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMITTER, OPTICAL RECEIVER, AND OPTICAL TRANSMISSION METHOD
- Publication number 20150333835
- Publication date Nov 19, 2015
- Fujitsu Limited
- Yoshinobu MATSUKAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION SYSTEM, AND OP...
- Publication number 20150280854
- Publication date Oct 1, 2015
- Fujitsu Limited
- Yoshinobu Matsukawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE AND MONITORING METHOD OF OPTICAL SIGNAL
- Publication number 20150063798
- Publication date Mar 5, 2015
- FUJITSU LIMITED
- Akihiro Mukai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION APPARATUS, TRANSMISSION SYSTEM, AND METHOD OF CONTROLL...
- Publication number 20140294378
- Publication date Oct 2, 2014
- Fujitsu Limited
- Yoshinobu Matsukawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL DROP APPARATUS, OPTICAL ADD APPARATUS, AND OPTICAL ADD/DROP...
- Publication number 20140147121
- Publication date May 29, 2014
- Fujitsu Limited
- Yoshinobu MATSUKAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL NETWORK APPARATUS
- Publication number 20130039644
- Publication date Feb 14, 2013
- Fujitsu Limited
- Miwa TANIGUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS AND OPTICAL TRANSMISSION METHOD
- Publication number 20120257903
- Publication date Oct 11, 2012
- Fujitsu Limited
- Miwa TANIGUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION DEVICE, CONTROL DEVICE, AND METHOD OF DETECTING ERRONE...
- Publication number 20120063766
- Publication date Mar 15, 2012
- FUJITSU LIMITED
- Yoshinobu MATSUKAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SONET/SDH TRANSMISSION APPARATUS
- Publication number 20100303456
- Publication date Dec 2, 2010
- FUJITSU LIMITED
- Yoshinobu Matsukawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS
- Publication number 20080226299
- Publication date Sep 18, 2008
- Fujitsu Limited
- Yoshiyuki Maeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS
- Publication number 20080226304
- Publication date Sep 18, 2008
- Fujitsu Limited
- Yoshiyuki Maeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Yoshinobu Matsukawa

Person

Patents Grantslast 30 patents

Wavelength conversion device and transmission system

Optical transmission device and method for checking optical connect...

Optical drop apparatus, optical add apparatus, and optical add/drop...

Optical transmission device and monitoring method of optical signal

Transmission apparatus, transmission system, and method of controll...

Optical transmission apparatus and optical transmission method

Transmission device, control device, and method of detecting errone...

SONET/SDH transmission apparatus

Optical transmission apparatus

Optical transmission apparatus

Protocol conversion system for data communication between different...

System for controlling signal transfer between a plurality of devices

Patents Applicationslast 30 patents

WAVELENGTH CONVERSION DEVICE AND TRANSMISSION SYSTEM

OPTICAL TRANSMISSION DEVICE AND METHOD FOR CHECKING OPTICAL CONNECT...

OPTICAL TRANSMISSION DEVICE, METHOD FOR VERIFYING CONNECTION, AND W...

OPTICAL TRANSMITTER, OPTICAL RECEIVER, AND OPTICAL TRANSMISSION METHOD

OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION SYSTEM, AND OP...

OPTICAL TRANSMISSION DEVICE AND MONITORING METHOD OF OPTICAL SIGNAL

TRANSMISSION APPARATUS, TRANSMISSION SYSTEM, AND METHOD OF CONTROLL...

OPTICAL DROP APPARATUS, OPTICAL ADD APPARATUS, AND OPTICAL ADD/DROP...

OPTICAL NETWORK APPARATUS

OPTICAL TRANSMISSION APPARATUS AND OPTICAL TRANSMISSION METHOD

TRANSMISSION DEVICE, CONTROL DEVICE, AND METHOD OF DETECTING ERRONE...

SONET/SDH TRANSMISSION APPARATUS

OPTICAL TRANSMISSION APPARATUS

OPTICAL TRANSMISSION APPARATUS