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Kawasaki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical fiber cable
Patent number
7,415,182
Issue date
Aug 19, 2008
Fujitsu Limited
Takafumi Terahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system, optical repeater, and optical transmis...
Patent number
7,372,622
Issue date
May 13, 2008
Fujitsu Limited
Kentaro Nakamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical fiber cable
Patent number
7,099,541
Issue date
Aug 29, 2006
Fujitsu Limited
Takafumi Terahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system, optical repeater, and optical transmis...
Patent number
7,075,709
Issue date
Jul 11, 2006
Fujitsu Limited
Kentaro Nakamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Bidirectionally transmittable optical wavelength division multiplex...
Patent number
6,941,074
Issue date
Sep 6, 2005
Fujitsu Limited
Kentaro Nakamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Distributed optical amplifying apparatus, optical communication sta...
Patent number
6,934,454
Issue date
Aug 23, 2005
Fujitsu Limited
Takafumi Terahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Control scheme for long wavelength channels in wideband WDM optical...
Patent number
6,856,453
Issue date
Feb 15, 2005
Fujitsu Limited
Rainer Hainberger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Distributed optical fiber amplifier using fiber with specific chara...
Patent number
6,721,481
Issue date
Apr 13, 2004
Fujitsu Limited
Takafumi Terahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Optical fiber cable
Publication number
20060251364
Publication date
Nov 9, 2006
Takafumi Terahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmission system, optical repeater, and optical transmis...
Publication number
20060176545
Publication date
Aug 10, 2006
FUJITSU LIMITED
Kentaro Nakamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Distributed optical amplifying apparatus, optical communication sta...
Publication number
20050157991
Publication date
Jul 21, 2005
FUJITSU LIMITED
Takafumi Terahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Distributed optical amplifying apparatus, optical communication sta...
Publication number
20040141704
Publication date
Jul 22, 2004
FUJITSU LIMITED
Takafumi Terahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Control scheme for long wavelength channels in wideband WDM optical...
Publication number
20040004756
Publication date
Jan 8, 2004
FUJITSU LIMITED
Rainer Hainberger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmission system, optical repeater, and optical transmis...
Publication number
20030117693
Publication date
Jun 26, 2003
FUJITSU LIMITED
Kentaro Nakamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Distributed optical amplifying apparatus, optical communication sta...
Publication number
20020076182
Publication date
Jun 20, 2002
Takafumi Terahara
G02 - OPTICS
Information
Patent Application
Bidirectionally transmittable optical wavelength division muliplexe...
Publication number
20020051267
Publication date
May 2, 2002
Kentaro Nakamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE