Kazuhiko HATAE

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Signal processing circuit and optical receiving device
- Patent number 10,560,199
- Issue date Feb 11, 2020
- Fujitsu Limited
- Yuya Imoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Amplitude adjustment circuit, digital coherent receiver, and amplit...
- Patent number 10,177,855
- Issue date Jan 8, 2019
- Fujitsu Limited
- Masashi Sato
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Adaptive equalization circuit, digital coherent receiver, and adapt...
- Patent number 9,680,667
- Issue date Jun 13, 2017
- Fujitsu Limited
- Daisuke Sasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Signal processing apparatus, signal processing method, and signal p...
- Patent number 9,660,733
- Issue date May 23, 2017
- Fujitsu Limited
- Masashi Sato
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Optical communication receiving device and frequency offset compens...
- Patent number 9,496,966
- Issue date Nov 15, 2016
- Fujitsu Limited
- Kazuhiko Hatae
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency offset estimation circuit and frequency offset estimation...
- Patent number 9,401,765
- Issue date Jul 26, 2016
- Fujitsu Limited
- Nobuaki Kawasoe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiving device
- Patent number 9,374,170
- Issue date Jun 21, 2016
- Fujitsu Limited
- Masato Oota
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Adaptive equalizer, optical receiver, and tap coefficient correctin...
- Patent number 8,693,898
- Issue date Apr 8, 2014
- Fujitsu Limited
- Nobukazu Koizumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Circuit design support computer product, method, and apparatus
- Patent number 8,677,296
- Issue date Mar 18, 2014
- Fujitsu Limited
- Kazuhiko Hatae
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical digital coherent receiver
- Patent number 8,606,118
- Issue date Dec 10, 2013
- Fujitsu Limited
- Kazuhiko Hatae
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Signal waveform generating circuit and method
- Patent number 8,392,485
- Issue date Mar 5, 2013
- Fujitsu Limited
- Kazuhiko Hatae
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Signal modulation method, signal modulation apparatus, electronic d...
- Patent number 7,649,482
- Issue date Jan 19, 2010
- Fujitsu Limited
- Kazuhiko Hatae
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Optical amplification device
- Patent number 7,417,792
- Issue date Aug 26, 2008
- Fujitsu Limited
- Kazuhiko Hatae
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SIGNAL PROCESSING CIRCUIT AND OPTICAL RECEIVING DEVICE
- Publication number 20190280779
- Publication date Sep 12, 2019
- Fujitsu Limited
- Yuya IMOTO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AMPLITUDE ADJUSTMENT CIRCUIT, DIGITAL COHERENT RECEIVER, AND AMPLIT...
- Publication number 20180123701
- Publication date May 3, 2018
- Fujitsu Limited
- Masashi Sato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ADAPTIVE EQUALIZATION CIRCUIT, DIGITAL COHERENT RECEIVER, AND ADAPT...
- Publication number 20170012803
- Publication date Jan 12, 2017
- Fujitsu Limited
- Daisuke SASAKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, AND SIGNAL P...
- Publication number 20160134261
- Publication date May 12, 2016
- Fujitsu Limited
- Masashi Sato
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
OPTICAL RECEIVING DEVICE
- Publication number 20150180586
- Publication date Jun 25, 2015
- Fujitsu Limited
- Masato OOTA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY OFFSET ESTIMATION CIRCUIT AND FREQUENCY OFFSET ESTIMATION...
- Publication number 20150147071
- Publication date May 28, 2015
- Fujitsu Limited
- Nobuaki Kawasoe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL COMMUNICATION RECEIVING DEVICE AND FREQUENCY OFFSET COMPENS...
- Publication number 20150098714
- Publication date Apr 9, 2015
- FUJITSU LIMITED
- Kazuhiko HATAE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD FOR SIMULATING DATA TRANSMISSION AMONG A PLURALITY OF HARDWA...
- Publication number 20130317802
- Publication date Nov 28, 2013
- Fujitsu Limited
- Manabu YAMAZAKI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMPUTER PRODUCT, DESIGN SUPPORT METHOD, AND DESIGN SUPPORT APPARATUS
- Publication number 20130254728
- Publication date Sep 26, 2013
- Fujitsu Limited
- Kazuhiko HATAE
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Adaptive equalizer, optical receiver, and tap coefficient correctin...
- Publication number 20120134684
- Publication date May 31, 2012
- FUJITSU LIMITED
- Nobukazu Koizumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL DIGITAL COHERENT RECEIVER
- Publication number 20120128377
- Publication date May 24, 2012
- Fujitsu Limited
- Kazuhiko HATAE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SIGNAL WAVEFORM GENERATING CIRCUIT AND METHOD
- Publication number 20090295437
- Publication date Dec 3, 2009
- Fujitsu Limited
- Kazuhiko Hatae
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SIGNAL MODULATION METHOD, SIGNAL MODULATION APPARATUS, ELECTRONIC D...
- Publication number 20090085786
- Publication date Apr 2, 2009
- Fujitsu Limited
- Kazuhiko HATAE
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Optical amplification device
- Publication number 20050157380
- Publication date Jul 21, 2005
- FUJITSU LIMITED
- Kazuhiko Hatae
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Kazuhiko HATAE

Person

Patents Grantslast 30 patents

Signal processing circuit and optical receiving device

Amplitude adjustment circuit, digital coherent receiver, and amplit...

Adaptive equalization circuit, digital coherent receiver, and adapt...

Signal processing apparatus, signal processing method, and signal p...

Optical communication receiving device and frequency offset compens...

Frequency offset estimation circuit and frequency offset estimation...

Optical receiving device

Adaptive equalizer, optical receiver, and tap coefficient correctin...

Circuit design support computer product, method, and apparatus

Optical digital coherent receiver

Signal waveform generating circuit and method

Signal modulation method, signal modulation apparatus, electronic d...

Optical amplification device

Patents Applicationslast 30 patents

SIGNAL PROCESSING CIRCUIT AND OPTICAL RECEIVING DEVICE

AMPLITUDE ADJUSTMENT CIRCUIT, DIGITAL COHERENT RECEIVER, AND AMPLIT...

ADAPTIVE EQUALIZATION CIRCUIT, DIGITAL COHERENT RECEIVER, AND ADAPT...

SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, AND SIGNAL P...

OPTICAL RECEIVING DEVICE

FREQUENCY OFFSET ESTIMATION CIRCUIT AND FREQUENCY OFFSET ESTIMATION...

OPTICAL COMMUNICATION RECEIVING DEVICE AND FREQUENCY OFFSET COMPENS...

METHOD FOR SIMULATING DATA TRANSMISSION AMONG A PLURALITY OF HARDWA...

COMPUTER PRODUCT, DESIGN SUPPORT METHOD, AND DESIGN SUPPORT APPARATUS

Adaptive equalizer, optical receiver, and tap coefficient correctin...

OPTICAL DIGITAL COHERENT RECEIVER

SIGNAL WAVEFORM GENERATING CIRCUIT AND METHOD

SIGNAL MODULATION METHOD, SIGNAL MODULATION APPARATUS, ELECTRONIC D...

Optical amplification device