Inventor
TADAKUMA MASATERU
JP19 patents
Patents
19 patentsUS6522818B1Feb 18, 2003
Method for efficient four-wave mixing generation and short pulse generation equipment using the method
FURUKAWA ELECTRIC CO LTD63 citations96
US7869014B2Jan 11, 2011
System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber
FURUKAWA ELECTRIC CO LTD13 citations92
US7424191B2Sep 9, 2008
System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber
FURUKAWA ELECTRIC CO LTD14 citations92
US7003202B2Feb 21, 2006
Method and system for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber, method of manufacturing optical fibers, method of measuring wavelength-dispersion distribution, method of compensating for measurement errors, and method of specifying conditions of measurement
FURUKAWA ELECTRIC CO LTD12 citations92
US7447444B2Nov 4, 2008
Light source in optical transmission system, waveform shaper, optical pulse train generator, and optical reproduction system
FURUKAWA ELECTRIC CO LTD13 citations84
US6920263B2Jul 19, 2005
Optical pulse generator
FURUKAWA ELECTRIC CO LTD16 citations83
US7155095B2Dec 26, 2006
Method for efficient four-wave mixing generation and short pulse generation equipment using the method
FURUKAWA ELECTRIC CO LTD10 citations73
US7146085B2Dec 5, 2006
Method and system for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber, method of manufacturing optical fibers, method of measuring wavelength-dispersion distribution, method of compensating for measurement errors, and method of specifying conditions of measurement
FURUKAWA ELECTRIC CO LTD8 citations73
US10718658B2Jul 21, 2020
Optical fiber sensor, seismic prospecting method, method of measuring distribution of petroleum/natural gas reservoir layer, strain detection method, and method of specifying position of a fissure in stratum
FURUKAWA ELECTRIC CO LTD3 citations72
US9722388B2Aug 1, 2017
Multi-core optical amplifying fiber device and multi-core optical fiber amplifier
FURUKAWA ELECTRIC CO LTD2 citations72
US5808768ASep 15, 1998
Optical telecommunications system
FURUKAWA ELECTRIC CO LTD10 citations72
US7054057B2May 30, 2006
Multi-frequency light source
FURUKAWA ELECTRIC CO LTD10 citations71
US7630607B2Dec 8, 2009
Optical fiber device
FURUKAWA ELECTRIC CO LTD3 citations63
US7769298B2Aug 3, 2010
Light source in optical transmission system, waveform shaper, optical pulse train generator and optical reproduction system
FURUKAWA ELECTRIC CO LTD4 citations62
US7536074B2May 19, 2009
Optical fiber
FURUKAWA ELECTRIC CO LTD2 citations62
US6892015B2May 10, 2005
Optical pulse waveform conversion
FURUKAWA ELECTRIC CO LTD5 citations62
US7408701B2Aug 5, 2008
Multi-frequency light source
FURUKAWA ELECTRIC CO LTD4 citations60
US11519759B2Dec 6, 2022
Cable, cable shape sensing system, sensing system, and cable shape sensing method
FURUKAWA ELECTRIC CO LTD0 citations51
US7693377B2Apr 6, 2010
Optical fiber module and optical device
FURUKAWA ELECTRIC CO LTD0 citations41