Nobuhiro Fukushima

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Delay interferometer using magneto-optic effect of a variable farad...
- Patent number 8,711,359
- Issue date Apr 29, 2014
- Fujitsu Optical Components Limited
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Grant
Optical switch
- Patent number 8,331,744
- Issue date Dec 11, 2012
- Fujitsu Limited
- Hiroyuki Furukawa
- G02 - OPTICS
Information Patent Grant
Optical receiver corresponding to differential M-phase shift keying...
- Patent number 7,792,436
- Issue date Sep 7, 2010
- Fujitsu Limited
- Takeshi Hoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Polarization controlling apparatus and polarization operation appar...
- Patent number 7,535,616
- Issue date May 19, 2009
- Fujitsu Limited
- Kazuo Hironishi
- G02 - OPTICS
Information Patent Grant
Wavelength selection device
- Patent number 7,340,128
- Issue date Mar 4, 2008
- Fujitsu Limited
- Kohei Shibata
- G01 - MEASURING TESTING
Information Patent Grant
Wavelength selective optical switch, and optical device provided wi...
- Patent number 7,330,617
- Issue date Feb 12, 2008
- Fujitsu Limited
- Hirofumi Aota
- G02 - OPTICS
Information Patent Grant
Optical apparatus provided with demultiplexing function
- Patent number 7,171,084
- Issue date Jan 30, 2007
- Fujitsu Limited
- Hirotomo Izumi
- G02 - OPTICS
Information Patent Grant
Variable optical filter
- Patent number 7,050,216
- Issue date May 23, 2006
- Fujitsu Limited
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Grant
Optical communication system and optical communication method havin...
- Patent number 6,999,655
- Issue date Feb 14, 2006
- Fujitsu Limited
- Nobuhiro Fukushima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Magnetic field generator for optical devices utilizing magneto-opti...
- Patent number 6,753,997
- Issue date Jun 22, 2004
- Fujitsu Limited
- Seimi Sasaki
- G02 - OPTICS
Information Patent Grant
Variable optical attenuator which applies a magnetic field to a far...
- Patent number 6,717,713
- Issue date Apr 6, 2004
- Fujitsu Limited
- Hiroshi Onaka
- G02 - OPTICS
Information Patent Grant
Tunable optical filter
- Patent number 6,717,730
- Issue date Apr 6, 2004
- Fujitsu Limited
- Takafumi Terahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing optical filter
- Patent number 6,666,944
- Issue date Dec 23, 2003
- Fujitsu Limited
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Grant
Variable optical attenuator which applies a magnetic field to a Far...
- Patent number 6,570,699
- Issue date May 27, 2003
- Fujitsu Limited
- Hiroshi Onaka
- G02 - OPTICS
Information Patent Grant
Optical attenuator and system, optical amplifier, and terminal devi...
- Patent number 6,507,422
- Issue date Jan 14, 2003
- Fujitsu Limited
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Grant
Tunable optical filter
- Patent number 6,493,129
- Issue date Dec 10, 2002
- Fujitsu Limited
- Takafumi Terahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical attenuator and system, optical amplifier, and terminal devi...
- Patent number 6,407,836
- Issue date Jun 18, 2002
- Fujitsu Limited
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Grant
Faraday rotator
- Patent number 6,392,784
- Issue date May 21, 2002
- Fujitsu Limited
- Seiichi Ikeda
- G02 - OPTICS
Information Patent Grant
Variable optical attenuator utilizing Faraday effect
- Patent number 6,384,957
- Issue date May 7, 2002
- Fujitsu Limited
- Seiichi Ikeda
- G02 - OPTICS
Information Patent Grant
Tunable optical filter
- Patent number 6,339,492
- Issue date Jan 15, 2002
- Fujitsu Limited
- Takafumi Terahara
- G02 - OPTICS
Information Patent Grant
Method of manufacturing optical filter
- Patent number 6,334,924
- Issue date Jan 1, 2002
- Fujitsu Limited
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Grant
Variable optical attenuator which applies a magnetic field to a Far...
- Patent number 6,333,806
- Issue date Dec 25, 2001
- Fujitsu Limited
- Hiroshi Onaka
- G02 - OPTICS
Information Patent Grant
Faraday rotator
- Patent number 6,288,827
- Issue date Sep 11, 2001
- FDK Corporation
- Hirotaka Kawai
- G02 - OPTICS
Information Patent Grant
Optical attenuator
- Patent number 6,275,323
- Issue date Aug 14, 2001
- Fujitsu Limited
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Grant
Tunable optical filter
- Patent number 6,246,818
- Issue date Jun 12, 2001
- Fujitsu Limited
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Grant
Optical connector which provides a disconnection state between two...
- Patent number 6,048,102
- Issue date Apr 11, 2000
- Fujitsu Limited
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Grant
Optical device utilizing magneto-optical effect
- Patent number 6,018,411
- Issue date Jan 25, 2000
- Fujitsu Limited
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Grant
Optical attenuator
- Patent number 6,018,412
- Issue date Jan 25, 2000
- Fujitsu Limited
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Grant
Optical device which makes use of magneto-optical effect
- Patent number 5,999,305
- Issue date Dec 7, 1999
- Fujitsu Limited
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Grant
Optical device having function of optical circulator
- Patent number 5,999,313
- Issue date Dec 7, 1999
- Fujitsu Limited
- Nobuhiro Fukushima
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Delay interferometer using magneto-optic effect
- Publication number 20110096338
- Publication date Apr 28, 2011
- FUJITSU OPTICAL COMPONENTS LIMITED
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Application
OPTICAL SWITCH
- Publication number 20100284648
- Publication date Nov 11, 2010
- FUJITSU LIMITED
- Hiroyuki FURUKAWA
- G02 - OPTICS
Information Patent Application
Wavelength dispersion compensation device
- Publication number 20100284076
- Publication date Nov 11, 2010
- FUJITSU LIMITED
- Kohei Shibata
- G02 - OPTICS
Information Patent Application
Optical element including dielectric multilayer film and manufactur...
- Publication number 20080107874
- Publication date May 8, 2008
- Fujitsu Limited
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Application
Polarization controlling apparatus and polarization operation appar...
- Publication number 20070242340
- Publication date Oct 18, 2007
- FUJITSU LIMITED
- Kazuo Hironishi
- G02 - OPTICS
Information Patent Application
Wavelength dispersion compensation device
- Publication number 20070236797
- Publication date Oct 11, 2007
- FUJITSU LIMITED
- Kohei Shibata
- G02 - OPTICS
Information Patent Application
Wavelength selection device
- Publication number 20070153352
- Publication date Jul 5, 2007
- FUJITSU LIMITED
- Kohei Shibata
- G02 - OPTICS
Information Patent Application
Wavelength selective optical switch, and optical device provided wi...
- Publication number 20070077003
- Publication date Apr 5, 2007
- FUJITSU LIMITED
- Hirofumi Aota
- G02 - OPTICS
Information Patent Application
Optical receiver corresponding to differential M-phase shift keying...
- Publication number 20060222377
- Publication date Oct 5, 2006
- FUJITSU LIMITED
- Takeshi Hoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical apparatus provided with demultiplexing function
- Publication number 20050194514
- Publication date Sep 8, 2005
- FUJITSU LIMITED
- Hirotomo Izumi
- G02 - OPTICS
Information Patent Application
Optical communication system and optical communication method havin...
- Publication number 20050158055
- Publication date Jul 21, 2005
- FUJITSU LIMITED
- Nobuhiro Fukushima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Variable optical filter
- Publication number 20050134954
- Publication date Jun 23, 2005
- FIJITSU LIMITED
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Application
Variable optical attenuator which applies a magnetic field to a far...
- Publication number 20030210451
- Publication date Nov 13, 2003
- FUJITSU LIMITED
- Hiroshi Onaka
- G02 - OPTICS
Information Patent Application
Magnetic field generator for optical devices utilizing magneto-opti...
- Publication number 20030165002
- Publication date Sep 4, 2003
- FUJITSU LIMITED OF Kawasaki, Japan
- Seimi Sasaki
- G02 - OPTICS
Information Patent Application
Tunable optical filter
- Publication number 20030016432
- Publication date Jan 23, 2003
- FUJITSU LIMITED
- Takafumi Terahara
- G02 - OPTICS
Information Patent Application
Method of manufacturing optical filter
- Publication number 20020026981
- Publication date Mar 7, 2002
- FUJITSU LIMITED
- Nobuhiro Fukushima
- G02 - OPTICS
Information Patent Application
Variable optical attenuator which applies a magnetic field to a far...
- Publication number 20020021484
- Publication date Feb 21, 2002
- FUJITSU LIMITED
- Hiroshi Onaka
- G02 - OPTICS
Information Patent Application
Tunable optical filter
- Publication number 20010010593
- Publication date Aug 2, 2001
- Takafumi Terahara
- G02 - OPTICS

Nobuhiro Fukushima

Person

Patents Grantslast 30 patents

Delay interferometer using magneto-optic effect of a variable farad...

Optical switch

Optical receiver corresponding to differential M-phase shift keying...

Polarization controlling apparatus and polarization operation appar...

Wavelength selection device

Wavelength selective optical switch, and optical device provided wi...

Optical apparatus provided with demultiplexing function

Variable optical filter

Optical communication system and optical communication method havin...

Magnetic field generator for optical devices utilizing magneto-opti...

Variable optical attenuator which applies a magnetic field to a far...

Tunable optical filter

Method of manufacturing optical filter

Variable optical attenuator which applies a magnetic field to a Far...

Optical attenuator and system, optical amplifier, and terminal devi...

Tunable optical filter

Optical attenuator and system, optical amplifier, and terminal devi...

Faraday rotator

Variable optical attenuator utilizing Faraday effect

Tunable optical filter

Method of manufacturing optical filter

Variable optical attenuator which applies a magnetic field to a Far...

Faraday rotator

Optical attenuator

Tunable optical filter

Optical connector which provides a disconnection state between two...

Optical device utilizing magneto-optical effect

Optical attenuator

Optical device which makes use of magneto-optical effect

Optical device having function of optical circulator

Patents Applicationslast 30 patents

Delay interferometer using magneto-optic effect

OPTICAL SWITCH

Wavelength dispersion compensation device

Optical element including dielectric multilayer film and manufactur...

Polarization controlling apparatus and polarization operation appar...

Wavelength dispersion compensation device

Wavelength selection device

Wavelength selective optical switch, and optical device provided wi...

Optical receiver corresponding to differential M-phase shift keying...

Optical apparatus provided with demultiplexing function

Optical communication system and optical communication method havin...

Variable optical filter

Variable optical attenuator which applies a magnetic field to a far...

Magnetic field generator for optical devices utilizing magneto-opti...

Tunable optical filter

Method of manufacturing optical filter

Variable optical attenuator which applies a magnetic field to a far...

Tunable optical filter