Takashi Toyomaki

Person

Hokkaido, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical communication device, wavelength number measurement device,...
- Patent number 8,891,961
- Issue date Nov 18, 2014
- Fujitsu Limited
- Taizo Maeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus and optical transmission system
- Patent number 8,873,972
- Issue date Oct 28, 2014
- Fujitsu Limited
- Takuya Miyashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device and optical switch device
- Patent number 8,805,194
- Issue date Aug 12, 2014
- Fujitsu Limited
- Takashi Toyomaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system and optical transmission method
- Patent number 8,699,884
- Issue date Apr 15, 2014
- Fujitsu Limited
- Takashi Toyomaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical apparatus using polarized orthogonal control
- Patent number 8,670,665
- Issue date Mar 11, 2014
- Fujitsu Limited
- Takashi Toyomaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Chromatic dispersion compensation designing method in optical netwo...
- Patent number 8,121,481
- Issue date Feb 21, 2012
- Fujitsu Limited
- Toru Katagiri
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network design and determination of the arrangement of optical tran...
- Patent number 8,078,701
- Issue date Dec 13, 2011
- Fujitsu Limited
- Tomohiro Hashiguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Detecting abnormality in an optical receiver
- Patent number 7,991,301
- Issue date Aug 2, 2011
- Fujitsu Limited
- Noriaki Mizuguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Coarse wavelength division multiplexing optical transmission system...
- Patent number 7,831,118
- Issue date Nov 9, 2010
- Fujitsu Limited
- Yoichi Oikawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase control apparatus and optical DQPSK receiver
- Patent number 7,684,713
- Issue date Mar 23, 2010
- Fujitsu Limited
- Yoshikazu Terayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication system
- Patent number 7,039,325
- Issue date May 2, 2006
- Fujitsu Limited
- Motoyoshi Sekiya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL COMMUNICATION DEVICE, WAVELENGTH NUMBER MEASUREMENT DEVICE,...
- Publication number 20130156422
- Publication date Jun 20, 2013
- FUJITSU LIMITED
- Taizo MAEDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE AND OPTICAL SWITCH DEVICE
- Publication number 20120263463
- Publication date Oct 18, 2012
- Fujitsu Limited
- Takashi TOYOMAKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS AND OPTICAL TRANSMISSION SYSTEM
- Publication number 20120201534
- Publication date Aug 9, 2012
- FUJITSU LIMITED
- Takuya MIYASHITA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission system and optical transmission method
- Publication number 20120008957
- Publication date Jan 12, 2012
- FUJITSU LIMITED
- Takashi Toyomaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CHROMATIC DISPERSION COMPENSATION DESIGNING METHOD IN OPTICAL NETWO...
- Publication number 20090220241
- Publication date Sep 3, 2009
- FUJITSU LIMITED
- Toru KATAGIRI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
NETWORK DESIGN APPARATUS, NETWORK DESIGN METHOD, AND COMPUTER PRODUCT
- Publication number 20090185805
- Publication date Jul 23, 2009
- FUJITSU LIMITED
- Tomohiro Hashiguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DETECTING ABNORMALITY IN AN OPTICAL RECEIVER
- Publication number 20080253761
- Publication date Oct 16, 2008
- FUJITSU LIMITED
- Noriaki MIZUGUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL APPARATUS USING POLARIZED ORTHOGONAL CONTROL
- Publication number 20080166128
- Publication date Jul 10, 2008
- FUJITSU LIMITED
- Takashi TOYOMAKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Phase control apparatus and optical DQPSK receiver
- Publication number 20070292140
- Publication date Dec 20, 2007
- FUJITSU LIMITED
- Yoshikazu Terayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Coarse wavelength division multiplexing optical transmission system...
- Publication number 20050220397
- Publication date Oct 6, 2005
- FUJITSU LIMITED
- Yoichi Oikawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Communication system
- Publication number 20020126336
- Publication date Sep 12, 2002
- FUJITSU LIMITED
- Motoyoshi Sekiya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Takashi Toyomaki

Person

Patents Grantslast 30 patents

Optical communication device, wavelength number measurement device,...

Optical transmission apparatus and optical transmission system

Optical transmission device and optical switch device

Optical transmission system and optical transmission method

Optical apparatus using polarized orthogonal control

Chromatic dispersion compensation designing method in optical netwo...

Network design and determination of the arrangement of optical tran...

Detecting abnormality in an optical receiver

Coarse wavelength division multiplexing optical transmission system...

Phase control apparatus and optical DQPSK receiver

Communication system

Patents Applicationslast 30 patents

OPTICAL COMMUNICATION DEVICE, WAVELENGTH NUMBER MEASUREMENT DEVICE,...

OPTICAL TRANSMISSION DEVICE AND OPTICAL SWITCH DEVICE

OPTICAL TRANSMISSION APPARATUS AND OPTICAL TRANSMISSION SYSTEM

Optical transmission system and optical transmission method

CHROMATIC DISPERSION COMPENSATION DESIGNING METHOD IN OPTICAL NETWO...

NETWORK DESIGN APPARATUS, NETWORK DESIGN METHOD, AND COMPUTER PRODUCT

DETECTING ABNORMALITY IN AN OPTICAL RECEIVER

OPTICAL APPARATUS USING POLARIZED ORTHOGONAL CONTROL

Phase control apparatus and optical DQPSK receiver

Coarse wavelength division multiplexing optical transmission system...

Communication system