Futoshi Izumi

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical logic circuit
- Patent number 10,268,101
- Issue date Apr 23, 2019
- Fujitsu Limited
- Futoshi Izumi
- G02 - OPTICS
Information Patent Grant
Frequency conversion device, wavelength multiplex device and freque...
- Patent number 9,866,344
- Issue date Jan 9, 2018
- Fujitsu Limited
- Futoshi Izumi
- G02 - OPTICS
Information Patent Grant
Probe generator, optical transmission apparatus and probe generatin...
- Patent number 9,831,944
- Issue date Nov 28, 2017
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiver, optical signal processing method, and optical tra...
- Patent number 9,735,916
- Issue date Aug 15, 2017
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transceiver, optical transmission system, and light source...
- Patent number 9,490,896
- Issue date Nov 8, 2016
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical limiter, optical logic circuit, comparator, digital convert...
- Patent number 9,354,483
- Issue date May 31, 2016
- Fujitsu Limited
- Futoshi Izumi
- G02 - OPTICS
Information Patent Grant
Optical branching device, optical amplification apparatus, and opti...
- Patent number 9,306,362
- Issue date Apr 5, 2016
- Fujitsu Limited
- Futoshi Izumi
- G02 - OPTICS
Information Patent Grant
Transmission-path-type specifying apparatus and transmission-path-t...
- Patent number 8,818,189
- Issue date Aug 26, 2014
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication system, optical receiving terminal, and optic...
- Patent number 8,682,157
- Issue date Mar 25, 2014
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal demultiplexing device and optical signal demultiplex...
- Patent number 8,538,268
- Issue date Sep 17, 2013
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal transmission control apparatus and optical signal tr...
- Patent number 8,515,288
- Issue date Aug 20, 2013
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus
- Patent number 8,401,386
- Issue date Mar 19, 2013
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier
- Patent number 8,279,518
- Issue date Oct 2, 2012
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission system
- Patent number 8,265,063
- Issue date Sep 11, 2012
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system using Raman amplifier and controlling m...
- Patent number 8,031,395
- Issue date Oct 4, 2011
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Backboard transmission method, backboard transmission apparatus, an...
- Patent number 7,974,799
- Issue date Jul 5, 2011
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frame transmission apparatus
- Patent number 7,920,568
- Issue date Apr 5, 2011
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus
- Patent number 7,853,146
- Issue date Dec 14, 2010
- Fujitsu Limited
- Makoto Takakuwa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication system, method, and optical transmitting station
- Patent number 7,853,151
- Issue date Dec 14, 2010
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Printed circuit board, and backplane data transmission method
- Patent number 7,812,618
- Issue date Oct 12, 2010
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplexing transmission device
- Patent number 7,725,040
- Issue date May 25, 2010
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dispersion compensating method and dispersion compensating apparatus
- Patent number 7,627,207
- Issue date Dec 1, 2009
- Fujitsu Limited
- Masahiro Yoshimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal multiplexing device and optical signal multiplexing...
- Patent number 7,623,791
- Issue date Nov 24, 2009
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division-multiplex system
- Patent number 7,623,794
- Issue date Nov 24, 2009
- Fujitsu Limited
- Makoto Takakuwa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplexing transmission apparatus using a mul...
- Patent number 7,623,787
- Issue date Nov 24, 2009
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Printed circuit board, and backplane data transmission method
- Patent number 7,583,091
- Issue date Sep 1, 2009
- Fujitsu Limited
- Futoshi Izumi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Wavelength-division multiplex communication system and apparatus
- Patent number 7,505,685
- Issue date Mar 17, 2009
- Fujitsu Limited
- Takako Takanashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dispersion compensating method and dispersion compensating apparatus
- Patent number 7,450,856
- Issue date Nov 11, 2008
- Fujitsu Limited
- Masahiro Yoshimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication system
- Patent number 7,376,348
- Issue date May 20, 2008
- Fujitsu Limited
- Koji Hasuo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Switching control device for wavelength-division multiplexing optic...
- Patent number 7,313,327
- Issue date Dec 25, 2007
- Fujitsu Limited
- Takehiro Fujita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
PROBE GENERATOR, OPTICAL TRANSMISSION APPARATUS AND PROBE GENERATIN...
- Publication number 20160315699
- Publication date Oct 27, 2016
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL LOGIC CIRCUIT
- Publication number 20160161827
- Publication date Jun 9, 2016
- Fujitsu Limited
- Futoshi IZUMI
- G02 - OPTICS
Information Patent Application
OPTICAL TRANSCEIVER, OPTICAL TRANSMISSION SYSTEM, AND LIGHT SOURCE...
- Publication number 20160142136
- Publication date May 19, 2016
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY CONVERSION DEVICE, WAVELENGTH MULTIPLEX DEVICE AND FREQUE...
- Publication number 20150318947
- Publication date Nov 5, 2015
- Fujitsu Limited
- Futoshi Izumi
- G02 - OPTICS
Information Patent Application
OPTICAL BRANCHING DEVICE, OPTICAL AMPLIFICATION APPARATUS, AND OPTI...
- Publication number 20150288130
- Publication date Oct 8, 2015
- Fujitsu Limited
- Futoshi Izumi
- G02 - OPTICS
Information Patent Application
OPTICAL LIMITER, OPTICAL LOGIC CIRCUIT, COMPARATOR, DIGITAL CONVERT...
- Publication number 20150168804
- Publication date Jun 18, 2015
- Fujitsu Limited
- Futoshi IZUMI
- G02 - OPTICS
Information Patent Application
OPTICAL RECEIVER, OPTICAL SIGNAL PROCESSING METHOD, AND OPTICAL TRA...
- Publication number 20150131996
- Publication date May 14, 2015
- Fujitsu Limited
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SIGNAL DEMULTIPLEXING DEVICE AND OPTICAL SIGNAL DEMULTIPLEX...
- Publication number 20120063784
- Publication date Mar 15, 2012
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS
- Publication number 20100260499
- Publication date Oct 14, 2010
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL COMMUNICATION SYSTEM, OPTICAL RECEIVING TERMINAL, AND OPTIC...
- Publication number 20100142940
- Publication date Jun 10, 2010
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL AMPLIFIER
- Publication number 20100118387
- Publication date May 13, 2010
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Transmission-path-type specifying apparatus and transmission-path-t...
- Publication number 20090297154
- Publication date Dec 3, 2009
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PRINTED CIRCUIT BOARD, AND BACKPLANE DATA TRANSMISSION METHOD
- Publication number 20090284299
- Publication date Nov 19, 2009
- Fujitsu Limited
- Futoshi Izumi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Optical signal transmission control apparatus and optical signal tr...
- Publication number 20090269079
- Publication date Oct 29, 2009
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission system using raman amplifier and controlling m...
- Publication number 20090207482
- Publication date Aug 20, 2009
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical Signal Transmission Control Apparatus and Optical Signal Tr...
- Publication number 20090136239
- Publication date May 28, 2009
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical signal demultiplexing device and optical signal demultiplex...
- Publication number 20080285976
- Publication date Nov 20, 2008
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FRAME TRANSMISSION APPARATUS
- Publication number 20080205303
- Publication date Aug 28, 2008
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical signal multiplexing device and optical signal multiplexing...
- Publication number 20080181610
- Publication date Jul 31, 2008
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Printed circuit board, and backplane data transmission method
- Publication number 20080042659
- Publication date Feb 21, 2008
- FUJITSU LIMITED
- Futoshi Izumi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Optical spatial communication method, optical transmission apparatu...
- Publication number 20080002986
- Publication date Jan 3, 2008
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical communication system
- Publication number 20070264013
- Publication date Nov 15, 2007
- FUJITSU LIMITED
- Koji Hasuo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Transmission system
- Publication number 20070223496
- Publication date Sep 27, 2007
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Backboard transmission method, backboard transmission apparatus, an...
- Publication number 20070192051
- Publication date Aug 16, 2007
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DISPERSION COMPENSATING METHOD AND DISPERSION COMPENSATING APPARATUS
- Publication number 20070177878
- Publication date Aug 2, 2007
- FUJITSU LIMITED
- Masahiro Yoshimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission apparatus
- Publication number 20070036549
- Publication date Feb 15, 2007
- FUJITSU LIMITED
- Makoto Takakuwa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical communication system, transmission deterioration compensati...
- Publication number 20060222371
- Publication date Oct 5, 2006
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wavelength division multiplexing transmission device
- Publication number 20060216026
- Publication date Sep 28, 2006
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wavelength division multiplexing transmission apparatus using a mul...
- Publication number 20060216027
- Publication date Sep 28, 2006
- FUJITSU LIMITED
- Futoshi Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Dispersion compensating method and dispersion compensating apparatus
- Publication number 20060210220
- Publication date Sep 21, 2006
- FUJITSU LIMITED
- Masahiro Yoshimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Futoshi Izumi

Person

Patents Grantslast 30 patents

Optical logic circuit

Frequency conversion device, wavelength multiplex device and freque...

Probe generator, optical transmission apparatus and probe generatin...

Optical receiver, optical signal processing method, and optical tra...

Optical transceiver, optical transmission system, and light source...

Optical limiter, optical logic circuit, comparator, digital convert...

Optical branching device, optical amplification apparatus, and opti...

Transmission-path-type specifying apparatus and transmission-path-t...

Optical communication system, optical receiving terminal, and optic...

Optical signal demultiplexing device and optical signal demultiplex...

Optical signal transmission control apparatus and optical signal tr...

Optical transmission apparatus

Optical amplifier

Transmission system

Optical transmission system using Raman amplifier and controlling m...

Backboard transmission method, backboard transmission apparatus, an...

Frame transmission apparatus

Optical transmission apparatus

Optical communication system, method, and optical transmitting station

Printed circuit board, and backplane data transmission method

Wavelength division multiplexing transmission device

Dispersion compensating method and dispersion compensating apparatus

Optical signal multiplexing device and optical signal multiplexing...

Wavelength division-multiplex system

Wavelength division multiplexing transmission apparatus using a mul...

Printed circuit board, and backplane data transmission method

Wavelength-division multiplex communication system and apparatus

Dispersion compensating method and dispersion compensating apparatus

Optical communication system

Switching control device for wavelength-division multiplexing optic...

Patents Applicationslast 30 patents

PROBE GENERATOR, OPTICAL TRANSMISSION APPARATUS AND PROBE GENERATIN...

OPTICAL LOGIC CIRCUIT

OPTICAL TRANSCEIVER, OPTICAL TRANSMISSION SYSTEM, AND LIGHT SOURCE...

FREQUENCY CONVERSION DEVICE, WAVELENGTH MULTIPLEX DEVICE AND FREQUE...

OPTICAL BRANCHING DEVICE, OPTICAL AMPLIFICATION APPARATUS, AND OPTI...

OPTICAL LIMITER, OPTICAL LOGIC CIRCUIT, COMPARATOR, DIGITAL CONVERT...

OPTICAL RECEIVER, OPTICAL SIGNAL PROCESSING METHOD, AND OPTICAL TRA...

OPTICAL SIGNAL DEMULTIPLEXING DEVICE AND OPTICAL SIGNAL DEMULTIPLEX...

OPTICAL TRANSMISSION APPARATUS

OPTICAL COMMUNICATION SYSTEM, OPTICAL RECEIVING TERMINAL, AND OPTIC...

OPTICAL AMPLIFIER

Transmission-path-type specifying apparatus and transmission-path-t...

PRINTED CIRCUIT BOARD, AND BACKPLANE DATA TRANSMISSION METHOD

Optical signal transmission control apparatus and optical signal tr...

Optical transmission system using raman amplifier and controlling m...

Optical Signal Transmission Control Apparatus and Optical Signal Tr...

Optical signal demultiplexing device and optical signal demultiplex...

FRAME TRANSMISSION APPARATUS

Optical signal multiplexing device and optical signal multiplexing...

Printed circuit board, and backplane data transmission method

Optical spatial communication method, optical transmission apparatu...

Optical communication system

Transmission system

Backboard transmission method, backboard transmission apparatus, an...

DISPERSION COMPENSATING METHOD AND DISPERSION COMPENSATING APPARATUS

Optical transmission apparatus

Optical communication system, transmission deterioration compensati...

Wavelength division multiplexing transmission device

Wavelength division multiplexing transmission apparatus using a mul...

Dispersion compensating method and dispersion compensating apparatus