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Kawasaki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical amplification control apparatus
Patent number
8,736,956
Issue date
May 27, 2014
Fujitsu Limited
Shinsuke Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical semiconductor device and driving method thereof
Patent number
8,073,033
Issue date
Dec 6, 2011
Fujitsu Limited
Akinori Hayakawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optical amplifying device, semiconductor optical ampl...
Patent number
7,859,745
Issue date
Dec 28, 2010
Fujitsu Limited
Shinsuke Tanaka
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor optical amplifier
Patent number
7,859,746
Issue date
Dec 28, 2010
Fujitsu Limited
Ken Morito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Quantum dot semiconductor device
Patent number
7,829,880
Issue date
Nov 9, 2010
Fujitsu Limited
Hiroji Ebe
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Optical semiconductor device and driving method thereof
Patent number
7,633,984
Issue date
Dec 15, 2009
Fujitsu Limited
Akinori Hayakawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optical amplification device and optical integrated c...
Patent number
7,542,201
Issue date
Jun 2, 2009
Fujitsu Limited
Shinsuke Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical waveguide device and semiconductor device
Patent number
7,539,378
Issue date
May 26, 2009
Fujitsu Limited
Kazumasa Takabayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Wavelength tunable laser device
Patent number
7,508,849
Issue date
Mar 24, 2009
Fujitsu Limited
Shinsuke Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical integrated device and optical module
Patent number
7,295,366
Issue date
Nov 13, 2007
Fujitsu Limited
Shinsuke Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Wavelength tunable laser of small size
Patent number
7,158,547
Issue date
Jan 2, 2007
Fujitsu Limited
Shinsuke Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Wavelength tunable laser and method of controlling the same
Patent number
7,130,322
Issue date
Oct 31, 2006
Fujitsu Limited
Kazumasa Takabayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical amplifying device
Patent number
7,130,112
Issue date
Oct 31, 2006
Fujitsu Limited
Ken Morito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Tunable wavelength laser
Patent number
7,112,827
Issue date
Sep 26, 2006
Fujitsu Limited
Akinori Hayakawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical amplifying device
Patent number
6,992,813
Issue date
Jan 31, 2006
Fujitsu Limited
Shinsuke Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Wavelength-selectable laser capable of high-speed frequency control
Patent number
6,847,662
Issue date
Jan 25, 2005
Fujitsu Limited
Martin Bouda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optical amplifier performing polarization-independent...
Patent number
6,545,801
Issue date
Apr 8, 2003
Fujitsu Limited
Ken Morito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Polarization independent-type semiconductor optical amplifier
Patent number
6,487,007
Issue date
Nov 26, 2002
Fujitsu Limited
Ken Morito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light amplifying device
Patent number
6,487,008
Issue date
Nov 26, 2002
Fujitsu Limited
Ken Morito
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL AMPLIFICATION CONTROL APPARATUS, METHOD FOR CONTROLLING SEM...
Publication number
20110164310
Publication date
Jul 7, 2011
Fujitsu Limited
Shinsuke TANAKA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL SEMICONDUCTOR DEVICE AND DRIVING METHOD THEREOF
Publication number
20100061414
Publication date
Mar 11, 2010
FUJITSU LIMITED
Akinori Hayakawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR OPTICAL AMPLIFIER
Publication number
20090122393
Publication date
May 14, 2009
Fujitsu Limited
Ken MORITO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR OPTICAL AMPLIFYING DEVICE, SEMICONDUCTOR OPTICAL AMPL...
Publication number
20080310012
Publication date
Dec 18, 2008
Fujitsu Limited
Shinsuke TANAKA
G02 - OPTICS
Information
Patent Application
QUANTUM DOT SEMICONDUCTOR DEVICE
Publication number
20080308788
Publication date
Dec 18, 2008
Fujitsu Limited
Hiroji EBE
B82 - NANO-TECHNOLOGY
Information
Patent Application
Semiconductor integrated optical element
Publication number
20080199128
Publication date
Aug 21, 2008
FUJITSU LIMITED
Shinsuke Tanaka
G02 - OPTICS
Information
Patent Application
Optical waveguide device and semiconductor device technical field
Publication number
20070258681
Publication date
Nov 8, 2007
FUJITSU LIMITED
Kazumasa Takabayashi
G02 - OPTICS
Information
Patent Application
Optical integrated device and optical module
Publication number
20070216996
Publication date
Sep 20, 2007
FUJITSU LIMITED
Shinsuke Tanaka
G02 - OPTICS
Information
Patent Application
Semiconductor optical amplification device and optical integrated c...
Publication number
20070047068
Publication date
Mar 1, 2007
FUJITSU LIMITED
Shinsuke Tanaka
B82 - NANO-TECHNOLOGY
Information
Patent Application
Optical semiconductor device and driving method thereof
Publication number
20060222033
Publication date
Oct 5, 2006
FUJITSU LIMITED
Akinori Hayakawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Photosemiconductor device
Publication number
20050286582
Publication date
Dec 29, 2005
FUJITSU LIMITED
Akinori Hayakawa
B82 - NANO-TECHNOLOGY
Information
Patent Application
Wavelength tunable laser device
Publication number
20050265402
Publication date
Dec 1, 2005
FUJITSU LIMITED
Shinsuke Tanaka
G02 - OPTICS
Information
Patent Application
Wavelength tunable laser of small size
Publication number
20050226284
Publication date
Oct 13, 2005
FUJITSU LIMITED
Shinsuke Tanaka
B82 - NANO-TECHNOLOGY
Information
Patent Application
Wavelength tunable laser and method of controlling the same
Publication number
20050094680
Publication date
May 5, 2005
FUJITSU LIMITED
Kazumasa Takabayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Optical amplifying device
Publication number
20050063042
Publication date
Mar 24, 2005
FUJITSU LIMITED
Ken Morito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Photosemiconductor device, method for fabricating photosemiconducto...
Publication number
20040119079
Publication date
Jun 24, 2004
Akinori Hayakawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Wavelength-selectable laser capable of high-speed frequency control
Publication number
20030179790
Publication date
Sep 25, 2003
FUJITSU LIMITED
Martin Bouda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Light amplifying device
Publication number
20020122245
Publication date
Sep 5, 2002
FUJITSU LIMITED
Ken Morito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor optical amplifier performing polarization-independent...
Publication number
20020067541
Publication date
Jun 6, 2002
FUJITSU LIMITED
Ken Morito
H01 - BASIC ELECTRIC ELEMENTS