| Patent | Date |
|---|
Cable, Cable Shape Sensing System, Sensing System, And Cable Shape Sensing Method
App 20210116265 - TADAKUMA; Masateru ; et al. | 2021-04-22 |
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
Grant 10,718,658 - Tadakuma | 2020-07-21 |
Multi-core optical amplifying fiber device and multi-core optical fiber amplifier
Grant 9,722,388 - Tadakuma , et al. August 1, 2 | 2017-08-01 |
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
App 20170138785 - TADAKUMA; Masateru | 2017-05-18 |
Multi-core Optical Amplifying Fiber Device And Multi-core Optical Fiber Amplifier
App 20160118762 - TADAKUMA; Masateru ; et al. | 2016-04-28 |
System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber
Grant 7,869,014 - Tadakuma , et al. January 11, 2 | 2011-01-11 |
Light source in optical transmission system, waveform shaper, optical pulse train generator and optical reproduction system
Grant 7,769,298 - Igarashi , et al. August 3, 2 | 2010-08-03 |
Optical fiber module and optical device
Grant 7,693,377 - Takahashi , et al. April 6, 2 | 2010-04-06 |
Optical fiber device
Grant 7,630,607 - Tadakuma , et al. December 8, 2 | 2009-12-08 |
Optical fiber
Grant 7,536,074 - Tadakuma May 19, 2 | 2009-05-19 |
Light Source In Optical Transmission System, Waveform Shaper, Optical Pulse Train Generator And Optical Reproduction System
App 20090092400 - IGARASHI; Koji ; et al. | 2009-04-09 |
Optical Fiber
App 20090060433 - TADAKUMA; Masateru | 2009-03-05 |
Optical Fiber Device
App 20090028509 - TADAKUMA; Masateru ; et al. | 2009-01-29 |
Optical Fiber Module And Optical Device
App 20090003786 - TAKAHASHI; Masanori ; et al. | 2009-01-01 |
Light source in optical transmission system, waveform shaper, optical pulse train generator, and optical reproduction system
Grant 7,447,444 - Igarashi , et al. November 4, 2 | 2008-11-04 |
System For Measuring The Wavelength Dispersion And Nonlinear Coefficient Of An Optical Fiber
App 20080225276 - Tadakuma; Masateru ; et al. | 2008-09-18 |
System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber
Grant 7,424,191 - Tadakuma , et al. September 9, 2 | 2008-09-09 |
Multi-frequency light source
Grant 7,408,701 - Aso , et al. August 5, 2 | 2008-08-05 |
Optical Fiber Laser Using Rare Earth-Added Fiber And Wide Band Light Source
App 20070216993 - Aiso; Keiichi ; et al. | 2007-09-20 |
System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber
App 20070035722 - Tadakuma; Masateru ; et al. | 2007-02-15 |
Method for efficient four-wave mixing generation and short pulse generation equipment using the method
Grant 7,155,095 - Aso , et al. December 26, 2 | 2006-12-26 |
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
Grant 7,146,085 - Tadakuma , et al. December 5, 2 | 2006-12-05 |
Multi-frequency light source
App 20060193032 - Aso; Osamu ; et al. | 2006-08-31 |
Multi-frequency light source
Grant 7,054,057 - Aso , et al. May 30, 2 | 2006-05-30 |
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
Grant 7,003,202 - Tadakuma , et al. February 21, 2 | 2006-02-21 |
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
App 20060029342 - Tadakuma; Masateru ; et al. | 2006-02-09 |
Light source in optical transmission system, waveform shaper, optical pulse train generator, and optical reproduction system
App 20060002715 - Igarashi; Koji ; et al. | 2006-01-05 |
Optical pulse generator
Grant 6,920,263 - Tadakuma , et al. July 19, 2 | 2005-07-19 |
Optical pulse waveform conversion
Grant 6,892,015 - Tadakuma , et al. May 10, 2 | 2005-05-10 |
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
App 20050058417 - Tadakuma, Masateru ; et al. | 2005-03-17 |
Method for efficient four-wave mixing generation and short pulse generation equipment using the method
App 20030152346 - Aso, Osamu ; et al. | 2003-08-14 |
Multi-frequency light source
App 20030048503 - Aso, Osamu ; et al. | 2003-03-13 |
Optical pulse generator
App 20030012492 - Tadakuma, Masateru ; et al. | 2003-01-16 |
Optical pulse waveform conversion
App 20020164135 - Tadakuma, Masateru ; et al. | 2002-11-07 |
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