Inventor
HOSHIDA TAKESHI
JP181 patents
⚠️ This page may combine multiple inventors who share the name “HOSHIDA TAKESHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
29 patentsUS9419720B2Aug 16, 2016
Optical signal transmitter
FUJITSU LTD57 citations98
US7817923B2Oct 19, 2010
Optical transmitting apparatus, optical receiving apparatus, and optical communication system comprising them
FUJITSU LTD55 citations98
US9686020B2Jun 20, 2017
Signal processing device and signal processing method
FUJITSU LTD55 citations96
US8014685B2Sep 6, 2011
Coherent optical receiver
FUJITSU LTD22 citations93
US7848659B2Dec 7, 2010
Optical transmitting apparatus and optical communication system
FUJITSU LTD22 citations93
US7773283B2Aug 10, 2010
Optical modulation device and optical modulation method
FUJITSU LTD16 citations93
US7720392B2May 18, 2010
Differential quadrature phase-shift modulator and method for setting driving voltage thereof
FUJITSU LTD23 citations93
US7620321B2Nov 17, 2009
Optical transmitting apparatus, method of increasing the number of paths of the apparatus, and optical switch module for increasing the number of paths of the apparatus
FUJITSU LTD26 citations93
US7529490B2May 5, 2009
Optical receiver and optical reception method compatible with differential quadrature phase shift keying
FUJITSU LTD27 citations93
US7477848B2Jan 13, 2009
Optical receiving apparatus and method for controlling the optical receiving apparatus
FUJITSU LTD26 citations93
US7200344B1Apr 3, 2007
Receiver and method for a multichannel optical communication system
FUJITSU LTD33 citations93
US6885499B1Apr 26, 2005
Optical amplifying apparatus for amplifying wide-wavelength-band light, optical sending apparatus, optical transmission system, and optical amplifying method
FUJITSU LTD37 citations93
US6512628B1Jan 28, 2003
Distributed optical amplifier, amplifying method, and optical communication system
FUJITSU LTD32 citations93
US7613403B2Nov 3, 2009
Differential multilevel modulated optical signal receiver apparatus
FUJITSU LTD22 citations92
US7099541B2Aug 29, 2006
Optical fiber cable
FUJITSU LTD14 citations92
US6721481B2Apr 13, 2004
Distributed optical fiber amplifier using fiber with specific characteristic values
FUJITSU LTD25 citations92
US10948802B2Mar 16, 2021
Wavelength converter apparatus and method of performing wavelength conversion
FUJITSU LTD10 citations86
US10277313B2Apr 30, 2019
Transmission apparatus, transmission system, and transmission control method
FUJITSU LTD10 citations84
US9281937B2Mar 8, 2016
Control timing synchronization method, optical transmission system, and optical transmission apparatus
FUJITSU LTD7 citations84
US9083459B2Jul 14, 2015
Optical transmission system, method of testing optical transmission system, and non-transitory computer-readable medium
FUJITSU LTD10 citations84
US8805207B2Aug 12, 2014
Distortion compensator, optical receiver, distortion compensator and optical receiver controlling methods, and optical transmission system
FUJITSU LTD7 citations84
US8374512B2Feb 12, 2013
Frequency offset monitoring device and optical coherent receiver
FUJITSU LTD17 citations84
US7907324B2Mar 15, 2011
Optical modulator and controlling method and apparatus thereof
FUJITSU LTD12 citations84
US7860394B2Dec 28, 2010
Optical receiver and optical reception method compatible with differential quadrature phase shift keying
FUJITSU LTD12 citations84
US7689133B2Mar 30, 2010
Optical signal reception device and method of controlling optical signal reception
FUJITSU LTD13 citations84
US7680419B2Mar 16, 2010
Repeater and repeating method
FUJITSU LTD9 citations84
US7631378B2Dec 15, 2009
Optical waveform shaper
FUJITSU LTD8 citations84
US7630650B2Dec 8, 2009
Multi-level modulation receiving device
FUJITSU LTD16 citations84
US7606504B2Oct 20, 2009
Optical receiver and optical receiving method corresponding to differential M-phase shift keying system
FUJITSU LTD15 citations84
NAKASHIMA HISAO
4 patentsUS8526828B2Sep 3, 2013
Optical transmitter and optical transmitter unit
NAKASHIMA HISAO21 citations92
US8406635B2Mar 26, 2013
Optical communication system and optical receiver
NAKASHIMA HISAO29 citations92
US8331805B2Dec 11, 2012
Digital coherent optical receiver
NAKASHIMA HISAO10 citations84
US8086113B2Dec 27, 2011
Optical receiver
NAKASHIMA HISAO8 citations84
ODA SHOICHIRO
4 patentsUS8437633B2May 7, 2013
Optical network and control method therefor
ODA SHOICHIRO31 citations92
US8249464B2Aug 21, 2012
Optical receiver and method for optical reception
ODA SHOICHIRO32 citations92
US8488975B2Jul 16, 2013
Optical transmitter, optical transmitter and receiver system, optical transmitting method and optical transmitting and receiving method
ODA SHOICHIRO9 citations84
US8391725B2Mar 5, 2013
Optical receiver for controlling wavelength of local oscillation light and local oscillation light control method
ODA SHOICHIRO14 citations84
TANIMURA TAKAHITO
3 patentsUS8116635B2Feb 14, 2012
Polarization multiplexing and transmitting apparatus
TANIMURA TAKAHITO17 citations92
US8768173B2Jul 1, 2014
Optical receiver and optical transmission system
TANIMURA TAKAHITO7 citations84
US8447186B2May 21, 2013
Distortion compensator, optical receiver, distortion compensator and optical receiver controlling methods, and optical transmission system
TANIMURA TAKAHITO6 citations84
TANAKA TOSHIKI
3 patentsAKIYAMA YUICHI
2 patentsHOSHIDA TAKESHI
2 patentsNISHIHARA MASATO
2 patentsKOIZUMI NOBUKAZU
1 patentShowing the top 50 of 181 patents by PatentIndex Score.