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Kawasaki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor optical amplification module, optical matrix switchin...
Patent number
8,274,733
Issue date
Sep 25, 2012
Fujitsu Limited
Masaji Noguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical-switch drive circuit and method thereof
Patent number
8,179,593
Issue date
May 15, 2012
Fujitsu Limited
Masaji Noguchi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Driving circuit of optical gate switch
Patent number
8,139,903
Issue date
Mar 20, 2012
Fujitsu Limited
Masaji Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Drive circuit and optical switch
Patent number
8,107,813
Issue date
Jan 31, 2012
Fujitsu Limited
Setsuo Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Non-inverting amplifier circuit and optical switch driver circuit
Patent number
7,898,341
Issue date
Mar 1, 2011
Fujitsu Limited
Tomohiro Ueno
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Driving circuit of optical gate switch
Patent number
7,848,600
Issue date
Dec 7, 2010
Fujitsu Limited
Masaji Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Semiconductor optical amplifier gate switch drive circuit, semicond...
Patent number
7,791,793
Issue date
Sep 7, 2010
Fujitsu Limited
Masaji Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication apparatus
Patent number
7,561,810
Issue date
Jul 14, 2009
Fujitsu Limited
Masaji Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Acousto-optic tunable filter control apparatus automatically adjust...
Patent number
7,405,858
Issue date
Jul 29, 2008
Fujitsu Limited
Masaji Noguchi
G02 - OPTICS
Information
Patent Grant
Method of wavelength selection control and wavelength variable filt...
Patent number
7,349,632
Issue date
Mar 25, 2008
Fujitsu Limited
Masaji Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical add/drop device
Patent number
7,187,814
Issue date
Mar 6, 2007
Fujitsu Limited
Masaji Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus for controlling acousto-optic tunable filter and method o...
Patent number
7,181,094
Issue date
Feb 20, 2007
Fujitsu Limited
Masaji Noguchi
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
Driving circuit of optical gate switch
Publication number
20110050293
Publication date
Mar 3, 2011
FUJITSU LIMITED
Masaji Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Drive circuit and optical switch
Publication number
20090297147
Publication date
Dec 3, 2009
FUJITSU LIMITED
Setsuo Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL-SWITCH DRIVE CIRCUIT AND METHOD THEREOF
Publication number
20090237127
Publication date
Sep 24, 2009
FUJITSU LIMITED
Masaji NOGUCHI
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Non-inverting amplifier circuit and optical switch driver circuit
Publication number
20090058534
Publication date
Mar 5, 2009
FUJITSU LIMITED
Tomohiro Ueno
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Semiconductor optical amplification module, optical matrix switchin...
Publication number
20080239472
Publication date
Oct 2, 2008
FUJITSU LIMITED
Masaji Noguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Semiconductor optical amplifier type gate switch drive circuit, sem...
Publication number
20080205888
Publication date
Aug 28, 2008
FUJITSU LIMITED
Masaji Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Driving circuit of optical gate switch
Publication number
20080068051
Publication date
Mar 20, 2008
FUJITSU LIMITED
Masaji Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical communication apparatus
Publication number
20070269223
Publication date
Nov 22, 2007
FUJITSU LIMITED
Masaji Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Acousto-optic tunable filter control apparatus automatically adjust...
Publication number
20070171505
Publication date
Jul 26, 2007
FUJITSU LIMITED
Masaji Noguchi
G02 - OPTICS
Information
Patent Application
Method and apparatus for controlling optical switch
Publication number
20070116404
Publication date
May 24, 2007
FUJITSU LIMITED
Takashi Nakano
G02 - OPTICS
Information
Patent Application
Apparatus for controlling acousto-optic tunable filter and method o...
Publication number
20060269185
Publication date
Nov 30, 2006
FUJITSU LIMITED
Masaji Noguchi
G02 - OPTICS
Information
Patent Application
Method of wavelength selection control and wavelength variable filt...
Publication number
20060189281
Publication date
Aug 24, 2006
FUJITSU LIMITED
Masaji Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical add/drop device
Publication number
20050271314
Publication date
Dec 8, 2005
FUJITSU LIMITED
Masaji Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wavelength selection module comprising variable wavelength selectin...
Publication number
20040190904
Publication date
Sep 30, 2004
Masaji Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Subscriber line interface device
Publication number
20030095655
Publication date
May 22, 2003
Masaji Noguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE