-
-
-
-
-
-
-
-
-
-
-
-
-
-
Optical network unit
-
Patent number 8,340,520
-
Issue date Dec 25, 2012
-
Nippon Telegraph and Telephone Corporation
-
Junichi Kani
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
-
Optical modulation apparatus
-
Patent number 7,474,460
-
Issue date Jan 6, 2009
-
Nippon Telegraph and Telephone Corporation
-
Masamichi Fujiwara
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
Optical modulating device
-
Patent number 7,336,414
-
Issue date Feb 26, 2008
-
Nippon Telegraph and Telephone Corporation
-
Masamichi Fujiwara
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
-
-
-
Optical amplifier
-
Patent number 6,583,924
-
Issue date Jun 24, 2003
-
Nippon Telegraph and Telephone Corporation
-
Hiroji Masuda
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
Optical amplifier
-
Patent number 6,469,826
-
Issue date Oct 22, 2002
-
Nippon Telegraph and Telephone Corporation
-
Hiroji Masuda
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE