Inventor
OKANO SATORU
JP33 patents
⚠️ This page may combine multiple inventors who share the name “OKANO SATORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
31 patentsUS5877881AMar 2, 1999
Optical transmission system
FUJITSU LTD126 citations97
US6738584B1May 18, 2004
Method for optical fiber communication, and terminal device and system for use in carrying out the method
FUJITSU LTD59 citations96
US6038063AMar 14, 2000
Optical amplifier and optical transmission system including the optical amplifier
FUJITSU LTD70 citations96
US7006769B1Feb 28, 2006
Method for optical fiber communication, and device and system for use in carrying out the method
FUJITSU LTD32 citations92
US6823141B2Nov 23, 2004
Optical transmission system and dispersion compensator
FUJITSU LTD16 citations92
US6570691B1May 27, 2003
Optical transmission system using in-line amplifiers
FUJITSU LTD23 citations92
US6449074B1Sep 10, 2002
Optical transmission device and optical communication system
FUJITSU LTD25 citations92
US6288836B1Sep 11, 2001
Optical amplifier and optical communication system having the optical amplifier
FUJITSU LTD47 citations92
US9698902B2Jul 4, 2017
Optical transmission system and optical transmission device
FUJITSU LTD11 citations84
US6295147B1Sep 25, 2001
Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus
FUJITSU LTD17 citations84
US7619813B2Nov 17, 2009
Wavelength division multiplexing device, an optical leakage prevention method, and a wavelength division multiplexing communication system
FUJITSU LTD10 citations83
US7522839B2Apr 21, 2009
Method of upgrading optical node, and an optical node apparatus
FUJITSU LTD8 citations83
US7068876B1Jun 27, 2006
Method and system for optical transmission adopting dispersion compensation
FUJITSU LTD8 citations74
US6496288B2Dec 17, 2002
Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus
FUJITSU LTD10 citations74
US9673929B2Jun 6, 2017
Optical transmission apparatus and optical transmission system
FUJITSU LTD4 citations73
US7116913B2Oct 3, 2006
Optical transmission system and dispersion compensator
FUJITSU LTD8 citations73
US7542677B2Jun 2, 2009
Dispersion compensation method in optical communication system having optical add drop multiplexing capability
FUJITSU LTD6 citations72
US9515727B2Dec 6, 2016
In-band optical signal-to-noise ratio monitor
FUJITSU LTD2 citations63
US7079771B2Jul 18, 2006
Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus
FUJITSU LTD5 citations63
US7376361B2May 20, 2008
Optical transmission system and dispersion compensator
FUJITSU LTD3 citations62
US7263296B2Aug 28, 2007
Optical transmission system using in-line amplifiers
FUJITSU LTD3 citations62
US9391421B2Jul 12, 2016
Optical amplification apparatus, optical transmission apparatus, and optical transmission system
FUJITSU LTD2 citations61
US7650072B2Jan 19, 2010
Method of upgrading optical node, and an optical node apparatus
FUJITSU LTD4 citations61
US7274878B2Sep 25, 2007
Dispersion compensation method in optical communication system having optical add drop multiplexing capability
FUJITSU LTD2 citations61
US9515733B2Dec 6, 2016
Mitigation of spectral offset in an optical filter
FUJITSU LTD1 citations52
US9270369B2Feb 23, 2016
Correction table for interferometric optical signal-to-noise ratio monitor
FUJITSU LTD0 citations52
US7116918B2Oct 3, 2006
Optical transmission system using in-line amplifiers
FUJITSU LTD0 citations52
US10020878B2Jul 10, 2018
Optical signal-to-noise ratio monitor and method for measuring optical signal to-noise ratio
FUJITSU LTD0 citations51
US9813183B2Nov 7, 2017
Optical transmission device and optical transmission system
FUJITSU LTD0 citations51
US10230462B2Mar 12, 2019
Optical transmission characteristic measurement device and method
FUJITSU LTD0 citations42
US9112605B2Aug 18, 2015
Dual-polarization interferometric optical signal-to-noise ratio monitor
FUJITSU LTD0 citations42