Masatoshi Kagawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus for monitoring optical signal quality specifically applic...
- Patent number 8,494,361
- Issue date Jul 23, 2013
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal generator
- Patent number 8,208,819
- Issue date Jun 26, 2012
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical-time-division-multiplexing differential phase shift keying...
- Patent number 8,165,473
- Issue date Apr 24, 2012
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal quality monitor for a high-bit rate signal
- Patent number 8,121,475
- Issue date Feb 21, 2012
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
OTDM-DPSK signal generator capable of detecting an optical carrier...
- Patent number 7,974,542
- Issue date Jul 5, 2011
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical time division multiplexing transmitter
- Patent number 7,957,646
- Issue date Jun 7, 2011
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical element integrated module
- Patent number 7,903,976
- Issue date Mar 8, 2011
- Oki Electric Industry Co., Ltd.
- Hiromi Tsuji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device for monitoring the quality of an optical signal by filtering...
- Patent number 7,877,010
- Issue date Jan 25, 2011
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for controlling a difference in optical phase and...
- Patent number 7,783,203
- Issue date Aug 24, 2010
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bidirectional time division multiplexing optical communication system
- Patent number 7,630,640
- Issue date Dec 8, 2009
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Apparatus for monitoring optical signal quality specifically applic...
- Publication number 20110076011
- Publication date Mar 31, 2011
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical signal generator
- Publication number 20100247097
- Publication date Sep 30, 2010
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical-time-division-multiplexing differential phase shift keying...
- Publication number 20100021175
- Publication date Jan 28, 2010
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical signal quality monitor for a high-bit rate signal
- Publication number 20090016712
- Publication date Jan 15, 2009
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical element integrated module
- Publication number 20080260384
- Publication date Oct 23, 2008
- Oki Electric Industry Co., Ltd.
- Hiromi Tsuji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OTDM-DPSK signal generator capable of detecting an optical carrier...
- Publication number 20080080859
- Publication date Apr 3, 2008
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Device for monitoring the quality of an optical signal by filtering...
- Publication number 20080080856
- Publication date Apr 3, 2008
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and method for controlling a difference in optical phase and...
- Publication number 20070165679
- Publication date Jul 19, 2007
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical communication system
- Publication number 20060269291
- Publication date Nov 30, 2006
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical time division multiplexing transmitter
- Publication number 20060159458
- Publication date Jul 20, 2006
- Oki Electric Industry Co., Ltd.
- Masatoshi Kagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Masatoshi Kagawa

Person

Patents Grantslast 30 patents

Apparatus for monitoring optical signal quality specifically applic...

Optical signal generator

Optical-time-division-multiplexing differential phase shift keying...

Optical signal quality monitor for a high-bit rate signal

OTDM-DPSK signal generator capable of detecting an optical carrier...

Optical time division multiplexing transmitter

Optical element integrated module

Device for monitoring the quality of an optical signal by filtering...

System and method for controlling a difference in optical phase and...

Bidirectional time division multiplexing optical communication system

Patents Applicationslast 30 patents

Apparatus for monitoring optical signal quality specifically applic...

Optical signal generator

Optical-time-division-multiplexing differential phase shift keying...

Optical signal quality monitor for a high-bit rate signal

Optical element integrated module

OTDM-DPSK signal generator capable of detecting an optical carrier...

Device for monitoring the quality of an optical signal by filtering...

System and method for controlling a difference in optical phase and...

Optical communication system

Optical time division multiplexing transmitter