Inventor
MIYATA HIDEYUKI
JP67 patents
⚠️ This page may combine multiple inventors who share the name “MIYATA HIDEYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
46 patentsUS5894362AApr 13, 1999
Optical communication system which determines the spectrum of a wavelength division multiplexed signal and performs various processes in accordance with the determined spectrum
FUJITSU LTD179 citations99
US9419720B2Aug 16, 2016
Optical signal transmitter
FUJITSU LTD57 citations98
US6351323B1Feb 26, 2002
Optical transmission apparatus, optical transmission system, and optical terminal station
FUJITSU LTD87 citations98
US5696859ADec 9, 1997
Optical-filter array, optical transmitter and optical transmission system
FUJITSU LTD108 citations98
US5696614ADec 9, 1997
Optical wavelength multiplex transmission method and optical dispersion compensation method
FUJITSU LTD85 citations97
US6417945B2Jul 9, 2002
Optical wavelength multiplex transmission method and optical dispersion compensation method
FUJITSU LTD30 citations96
US6285479B1Sep 4, 2001
Optical cross connect unit, optical add-drop multiplexer, light source unit, and adding unit
FUJITSU LTD66 citations96
US6243176B1Jun 5, 2001
Optical wavelength multiplex transmission method and optical dispersion compensation method
FUJITSU LTD34 citations96
US6067187AMay 23, 2000
Optical amplifier and optical communication system employing the same
FUJITSU LTD60 citations96
US5636046AJun 3, 1997
Optical dispersion compensation method using transmissible band determined from synergetic effect of self phase modulation and group velocity dispersion
FUJITSU LTD48 citations96
US5612807AMar 18, 1997
Optical dispersion compensation method for shifting a zero dispersion wavelength of an optical fiber to compensate for dispersion in an optical system
FUJITSU LTD31 citations96
US5602666AFeb 11, 1997
Optical dispersion compensation method for shifting a zero dispersion wavelength of an optical fiber to compensate for dispersion in an optical system
FUJITSU LTD56 citations96
US4965858AOct 23, 1990
Polarization diversity optical receiver for coherent optical communication
FUJITSU LTD57 citations96
US7773283B2Aug 10, 2010
Optical modulation device and optical modulation method
FUJITSU LTD16 citations93
US7006771B1Feb 28, 2006
Optical communication apparatus and optical add/drop apparatus
FUJITSU LTD14 citations93
US6782017B1Aug 24, 2004
Wavelength locker and wavelength discriminating apparatus
FUJITSU LTD51 citations93
US6366376B1Apr 2, 2002
Optical transmitting device using wavelength division multiplexing to transmit signal lights having frequencies arranged to eliminate effects of four-wave mixing (FWM)
FUJITSU LTD29 citations93
US5469288ANov 21, 1995
Optical filter, method of controlling transmission wavelength thereof, and optical receiver using the method
FUJITSU LTD37 citations93
US7362925B2Apr 22, 2008
Control method and control apparatus of optical device
FUJITSU LTD18 citations92
US6934433B2Aug 23, 2005
Control method and control apparatus of optical device
FUJITSU LTD17 citations92
US6583900B2Jun 24, 2003
Optical transmission apparatus, optical transmission system, and optical terminal station
FUJITSU LTD27 citations92
US5886804AMar 23, 1999
Optical transmission system employing single mode optical transmission fiber
FUJITSU LTD32 citations92
US7840141B2Nov 23, 2010
Differential M phase-shift modulator
FUJITSU LTD13 citations84
US7447446B2Nov 4, 2008
Light source apparatus, and method for switching redundancy of the light source
FUJITSU LTD10 citations84
US7443504B2Oct 28, 2008
Arbitrary and endless polarization controller and polarization-mode dispersion compensator using the same and arbitrary and endless polarization controlling method
FUJITSU LTD9 citations84
US7061669B2Jun 13, 2006
Optical apparatus with loss compensation capability and optical amplifier for loss compensation
FUJITSU LTD14 citations84
US6785306B2Aug 31, 2004
Wavelength-tunable stabilizer laser
FUJITSU LTD16 citations84
US6917732B2Jul 12, 2005
Connecting method of optical function devices, and optical apparatus
FUJITSU LTD12 citations83
US6384943B2May 7, 2002
Optical wavelength multiplex transmission method and optical dispersion compensation method
FUJITSU LTD13 citations82
US6275314B1Aug 14, 2001
Optical wavelength multiplex transmission method and optical dispersion compensation method
FUJITSU LTD13 citations82
US6252688B1Jun 26, 2001
Optical wavelength multiplex transmission method and optical dispersion compensation method
FUJITSU LTD13 citations82
US6252687B1Jun 26, 2001
Optical wavelength multiplex transmission method and optical dispersion compensation method
FUJITSU LTD13 citations82
US7734175B2Jun 8, 2010
Network configuring apparatus
FUJITSU LTD15 citations81
US7577368B2Aug 18, 2009
Optical communication apparatus and optical add/drop apparatus
FUJITSU LTD4 citations74
US7389054B2Jun 17, 2008
Optical communication apparatus and optical add/drop apparatus
FUJITSU LTD4 citations74
US7020399B1Mar 28, 2006
Optical transmission apparatus and method which adjust rise and fall time of signal light to be transmitted
FUJITSU LTD10 citations74
US6996142B2Feb 7, 2006
Light source device and wavelength control device therefor
FUJITSU LTD9 citations74
US6930824B1Aug 16, 2005
Optical amplifier which compensates for dispersion of a WDM optical signal
FUJITSU LTD11 citations74
US6594069B1Jul 15, 2003
Control method and control apparatus of optical wavelength variable filter
FUJITSU LTD7 citations74
US5471336ANov 28, 1995
Cold start control system and method for use in coherent lightwave communications system
FUJITSU LTD12 citations74
US5426502AJun 20, 1995
Optical fiber interference wavelength/frequency detection apparatus which eliminates a movable element
FUJITSU LTD8 citations74
US5200967AApr 6, 1993
Optical frequency deviation measure and control device for laser light
FUJITSU LTD9 citations74
US7826744B2Nov 2, 2010
Optical network system and transmission apparatus
FUJITSU LTD3 citations63
US7546043B2Jun 9, 2009
Optical communication system
FUJITSU LTD6 citations63
US7406262B2Jul 29, 2008
Optical transmission device
FUJITSU LTD5 citations63
US7366426B2Apr 29, 2008
Optical add/drop multiplexer using tunable filter and method for feedback controlling the tunable filter
FUJITSU LTD4 citations63
TANAKA TOSHIKI
2 patentsAKIYAMA YUICHI
2 patentsShowing the top 50 of 67 patents by PatentIndex Score.