Inventor
KAWAZAWA TOSHIO
JP13 patents
⚠️ This page may combine multiple inventors who share the name “KAWAZAWA TOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOKUSAI DENSHIN DENWA CO LTD
4 patentsUS6327060B1Dec 4, 2001
Optical transmission system, optically branching apparatus and optical signal processing apparatus
KOKUSAI DENSHIN DENWA CO LTD83 citations97
US6377373B1Apr 23, 2002
Optical transmission system
KOKUSAI DENSHIN DENWA CO LTD26 citations92
US6115156ASep 5, 2000
Demultiplexer device for wavelength-division multiplexed optical fiber communication
KOKUSAI DENSHIN DENWA CO LTD34 citations92
US5978122ANov 2, 1999
Noise suppression method for wavelength division multiplexing transmission system
KOKUSAI DENSHIN DENWA CO LTD16 citations70
KDDI SUBMARINE CABLE SYS INC
3 patentsUS7158728B2Jan 2, 2007
Optical repeating system and optical amplifying repeater control method
KDDI SUBMARINE CABLE SYS INC5 citations61
US7130544B2Oct 31, 2006
Optical repeating system and optical amplifying repeater control method
KDDI SUBMARINE CABLE SYS INC6 citations61
US6914718B2Jul 5, 2005
Optical repeating system and optical amplifying repeater control method
KDDI SUBMARINE CABLE SYS INC2 citations61
KDD CORP
2 patentsMITSUBISHI ELECTRIC CORP
2 patentsUS6804469B2Oct 12, 2004
Supervisory system of optical amplifier repeater system and supervisory method of optical amplifier repeater system
MITSUBISHI ELECTRIC CORP13 citations83
US7009693B2Mar 7, 2006
Gain profile measuring method and system and gain profile controlling method and system
MITSUBISHI ELECTRIC CORP14 citations79