P

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 patents
US5506724AApr 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 patents

IBM

1 patent

INOUE YASUO

1 patent

HAYASHI TOSHIHIDE

1 patent

TOKURA TOSHIYUKI

1 patent

FCC KK

1 patent

YOSHIDA TSUYOSHI

1 patent

CARRIER JAPAN CORP

1 patent

MITANI SHUNSUKE

1 patent

KDDI SUBMARINE CABLE SYS INC

1 patent

INDEPENDENT ADMINISTRATIVE INSTITUTION JAPAN AGENCY FOR MARINE EARTH SCI & TECH

1 patent