Inventor
SHIMIZU KATSUHIRO
JP40 patents
⚠️ This page may combine multiple inventors who share the name “SHIMIZU KATSUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI ELECTRIC CORP
22 patentsUS5506724AApr 9, 1996
Gain controllable optical amplifier and applications thereof
MITSUBISHI ELECTRIC CORP105 citations98
US6236488B1May 22, 2001
Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods
MITSUBISHI ELECTRIC CORP59 citations95
US7092643B2Aug 15, 2006
Optical transmission apparatus and bias voltage control method for the optical modulator
MITSUBISHI ELECTRIC CORP30 citations92
US6873456B2Mar 29, 2005
Optical amplifying repeater apparatus and optical amplifying/repeating transmission system
MITSUBISHI ELECTRIC CORP19 citations92
US6836622B2Dec 28, 2004
Optical transmitter, and method of controlling bias voltage to the optical transmitter
MITSUBISHI ELECTRIC CORP24 citations92
US6657778B1Dec 2, 2003
Optical amplification repeater and optical amplification repeating and transmitting system
MITSUBISHI ELECTRIC CORP25 citations92
US6445478B2Sep 3, 2002
Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods
MITSUBISHI ELECTRIC CORP26 citations92
US6028695AFeb 22, 2000
Optical modulating apparatus
MITSUBISHI ELECTRIC CORP36 citations92
US5455704AOct 3, 1995
Optical-fiber light amplifier
MITSUBISHI ELECTRIC CORP43 citations91
US5367587ANov 22, 1994
Optical amplifier
MITSUBISHI ELECTRIC CORP22 citations91
US7801450B2Sep 21, 2010
Optical transmitter and optical communication system
MITSUBISHI ELECTRIC CORP13 citations77
US7239673B2Jul 3, 2007
Optical reception apparatus
MITSUBISHI ELECTRIC CORP7 citations73
US7058313B2Jun 6, 2006
Multi-value modulation apparatus
MITSUBISHI ELECTRIC CORP7 citations73
US7057802B2Jun 6, 2006
Optical amplifier device
MITSUBISHI ELECTRIC CORP6 citations73
US7034993B2Apr 25, 2006
Optical amplifier apparatus
MITSUBISHI ELECTRIC CORP7 citations73
US6775482B1Aug 10, 2004
Light receiver
MITSUBISHI ELECTRIC CORP11 citations72
US7170673B2Jan 30, 2007
Optical amplifying repeater apparatus and optical amplifying/repeating transmission system
MITSUBISHI ELECTRIC CORP3 citations63
US7501914B2Mar 10, 2009
Bias circuit
MITSUBISHI ELECTRIC CORP2 citations62
US7016614B1Mar 21, 2006
Optical wavelength division multiplexing transmission suppressing four-wave mixing and SPM-GVD effects
MITSUBISHI ELECTRIC CORP4 citations62
US6832048B2Dec 14, 2004
Dispersion compensation apparatus and a dispersion compensation system
MITSUBISHI ELECTRIC CORP6 citations62
US7895498B2Feb 22, 2011
Apparatuses and method for error correction coding and error correction decoding
MITSUBISHI ELECTRIC CORP5 citations61
US7903982B2Mar 8, 2011
Optical receiver
MITSUBISHI ELECTRIC CORP1 citations46
SONY CORP
8 patentsUS6362816B1Mar 26, 2002
Display control method and display control apparatus
SONY CORP36 citations90
US6674481B1Jan 6, 2004
Display apparatus, marker signal making process, marker signal detector circuit, and control signal generator circuit
SONY CORP14 citations84
US9032471B2May 12, 2015
Communication system, transmission apparatus, transmission method, reception apparatus and reception method
SONY CORP4 citations83
US8789127B2Jul 22, 2014
Communication system, transmission apparatus, transmission method, reception apparatus and reception method
SONY CORP5 citations83
US9038123B2May 19, 2015
Communication system, transmission apparatus, transmission method, reception apparatus and reception method
SONY CORP3 citations73
US6292216B1Sep 18, 2001
Control signal generating circuit
SONY CORP8 citations73
US9350931B2May 24, 2016
Communication system, transmission apparatus, transmission method, reception apparatus and reception method
SONY CORP2 citations62
US9699403B2Jul 4, 2017
Communication system, transmission apparatus, transmission method, reception apparatus and reception method
SONY CORP0 citations51