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Gentaro Funatsu
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Yokohama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical transmission system, optical transmitter for optical transm...
Patent number
8,005,374
Issue date
Aug 23, 2011
Nippon Telegraph and Telephone Corporation
Kazushige Yonenaga
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Automatic power restoring method and optical communication system
Patent number
7,792,430
Issue date
Sep 7, 2010
Fujitsu Limited
Hiroyuki Deguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system, optical transmitter for optical transm...
Patent number
7,734,194
Issue date
Jun 8, 2010
Nippon Telegraph and Telephone Corporation
Kazushige Yonenaga
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Automatic power restoring method and optical communication system
Patent number
7,664,392
Issue date
Feb 16, 2010
Fujitsu Limited
Hiroyuki Deguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Automatic power restoring method and optical communication system
Patent number
7,437,069
Issue date
Oct 14, 2008
Fujitsu Limited
Hiroyuki Deguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Measurement method by OTDR and terminal station apparatus
Patent number
7,420,666
Issue date
Sep 2, 2008
Fujitsu Limited
Takayuki Maehara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Measurement method by OTDR and terminal station apparatus
Patent number
7,215,415
Issue date
May 8, 2007
Fujitsu Limited
Takayuki Maehara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Optical Transmission System, Optical Transmitter for Optical Transm...
Publication number
20100172653
Publication date
Jul 8, 2010
Nippon Telegraph and Telephone Corporation
Kazushige Yonenaga
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Automatic power restoring method and optical communication system
Publication number
20090175616
Publication date
Jul 9, 2009
FUJITSU LIMITED
Hiroyuki Deguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Automatic power restoring method and optical communication system
Publication number
20080317461
Publication date
Dec 25, 2008
FUJITSU LIMITED
Hiroyuki Deguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Measurement method by OTDR and terminal station apparatus
Publication number
20070183785
Publication date
Aug 9, 2007
FUJITSU LIMITED
Takayuki Maehara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Measurement method by OTDR and terminal station apparatus
Publication number
20050110980
Publication date
May 26, 2005
FUJITSU LIMITED
Takayuki Maehara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Automatic power restoring method and optical communication system
Publication number
20040213567
Publication date
Oct 28, 2004
Fujitsu Limited & Nippon Telegraph
Hiroyuki Deguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE