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Takeshi KIYOSE
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Passive optical network system and optical line terminator
Patent number
8,184,975
Issue date
May 22, 2012
Hitachi, Ltd.
Masao Niibe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Passive optical network system, optical line terminator and, commun...
Patent number
8,139,950
Issue date
Mar 20, 2012
Hitachi, Ltd.
Masao Niibe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electronic apparatus
Patent number
7,551,436
Issue date
Jun 23, 2009
Hitachi Communication Technologies, Ltd.
Koji Hata
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
COMMUNICATION SYSTEM, CONTROL APPARATUS AND COMMUNICATION APPARATUS
Publication number
20160021005
Publication date
Jan 21, 2016
Hitachi, Ltd
Takeshi KIYOSE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PASSIVE OPTICAL NETWORK SYSTEM AND OPTICAL LINE TERMINATOR
Publication number
20100067913
Publication date
Mar 18, 2010
Masao Niibe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PASSIVE OPTICAL NETWORK SYSTEM, OPTICAL LINE TERMINATOR AND, COMMUN...
Publication number
20090202242
Publication date
Aug 13, 2009
Masao NIIBE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Electronic apparatus
Publication number
20070230123
Publication date
Oct 4, 2007
Koji Hata
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR