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Eisaku Sasaki
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Minato-ku, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Signal modulation apparatus and signal modulation method
Patent number
11,929,865
Issue date
Mar 12, 2024
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
OAM reception apparatus, OAM reception method, and OAM transmission...
Patent number
11,438,032
Issue date
Sep 6, 2022
NEC Corporation
Ryuji Zenkyu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Antenna device, wireless transmitter, wireless receiver, and wirele...
Patent number
11,362,440
Issue date
Jun 14, 2022
NEC Corporation
Ryuji Zenkyu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Control device, delay difference adjustment method, and non-transit...
Patent number
11,290,154
Issue date
Mar 29, 2022
NEC Corporation
Ryuji Zenkyu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Radio transmission device, baseband processing device, radio transm...
Patent number
11,159,211
Issue date
Oct 26, 2021
NEC Corporation
Ryuji Zenkyu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
OAM reception apparatus, OAM reception method, and OAM transmission...
Patent number
10,998,948
Issue date
May 4, 2021
NEC Corporation
Ryuji Zenkyu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Phase noise compensation apparatus, demodulation apparatus, communi...
Patent number
10,763,973
Issue date
Sep 1, 2020
NEC Corporation
Norifumi Kamiya
G01 - MEASURING TESTING
Information
Patent Grant
Communication apparatus, demodulation apparatus, carrier reproducti...
Patent number
9,876,668
Issue date
Jan 23, 2018
NEC Corporation
Norifumi Kamiya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Carrier wave reproduction device and carrier wave reproduction method
Patent number
9,136,979
Issue date
Sep 15, 2015
NEC Corporation
Norifumi Kamiya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Data transmission method, data reception method, data modulation de...
Patent number
8,958,492
Issue date
Feb 17, 2015
NEC Corporation
Norifumi Kamiya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system, receiving apparatus, transmitting ap...
Patent number
8,787,478
Issue date
Jul 22, 2014
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Log likelihood ratio arithmetic circuit, transmission apparatus, lo...
Patent number
8,675,771
Issue date
Mar 18, 2014
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Carrier recovery circuit and demodulation circuit under quasi-coher...
Patent number
8,675,778
Issue date
Mar 18, 2014
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Channel switching signal generating circuit and channel switching s...
Patent number
8,527,847
Issue date
Sep 3, 2013
NEC Corporation
Eisaku Sasaki
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Modulation and demodulation method, modulation apparatus and demodu...
Patent number
8,229,022
Issue date
Jul 24, 2012
NEC Corporation
Seiichi Noda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio communication apparatus, radio communication system and radio...
Patent number
8,086,259
Issue date
Dec 27, 2011
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Demodulator for processing digital signal
Patent number
6,624,691
Issue date
Sep 23, 2003
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Incoherent demodulator and method of incoherently demodulating an I...
Patent number
6,570,441
Issue date
May 27, 2003
NEC Corporation
Eisaku Sasaki
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Clock synchronizing circuit
Patent number
6,512,473
Issue date
Jan 28, 2003
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Demodulation device
Patent number
6,411,658
Issue date
Jun 25, 2002
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Zero-crossing detection type clock recovery circuit operated at sym...
Patent number
6,127,897
Issue date
Oct 3, 2000
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Demodulator
Patent number
6,121,828
Issue date
Sep 19, 2000
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital filter with low rolloff factor
Patent number
5,912,827
Issue date
Jun 15, 1999
NEC Corporation
Eisaku Sasaki
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and apparatus for multi-level quadrature amplitude modulation
Patent number
5,825,828
Issue date
Oct 20, 1998
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Clock recovery circuit for QAM demodulator
Patent number
5,789,988
Issue date
Aug 4, 1998
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Coded modulation apparatus
Patent number
5,570,379
Issue date
Oct 29, 1996
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multilevel code for transmission device
Patent number
5,408,499
Issue date
Apr 18, 1995
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
FIR digital filter for high-speed communications systems
Patent number
5,031,133
Issue date
Jul 9, 1991
NEC Corporation
Eisaku Sasaki
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Stepped square-QAM demodulator utilizing all signal points to gener...
Patent number
4,864,244
Issue date
Sep 5, 1989
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
CMI decoder
Patent number
4,837,782
Issue date
Jun 6, 1989
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, AND R...
Publication number
20240120965
Publication date
Apr 11, 2024
NEC Corporation
Norifumi Kamiya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CONTROL APPARATUS, OAM MODE-MULTIPLEXING TRANSMITTING APPARATUS, OA...
Publication number
20230318732
Publication date
Oct 5, 2023
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIGNAL MODULATION APPARATUS AND SIGNAL MODULATION METHOD
Publication number
20220417075
Publication date
Dec 29, 2022
NEC Corporation
Eisaku SASAKI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OAM RECEPTION APPARATUS, OAM RECEPTION METHOD, AND OAM TRANSMISSION...
Publication number
20210399766
Publication date
Dec 23, 2021
NEC Corporation
Ryuji ZENKYU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OAM RECEPTION APPARATUS, OAM RECEPTION METHOD, AND OAM TRANSMISSION...
Publication number
20210105049
Publication date
Apr 8, 2021
NEC Corporation
Ryuji ZENKYU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RADIO TRANSMISSION DEVICE, BASEBAND PROCESSING DEVICE, RADIO TRANSM...
Publication number
20210075478
Publication date
Mar 11, 2021
NEC Corporation
Ryuji ZENKYU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CONTROL DEVICE, DELAY DIFFERENCE ADJUSTMENT METHOD, AND NON-TRANSIT...
Publication number
20210028827
Publication date
Jan 28, 2021
NEC Corporation
Ryuji ZENKYU
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
ANTENNA DEVICE, WIRELESS TRANSMITTER, WIRELESS RECEIVER, AND WIRELE...
Publication number
20210028560
Publication date
Jan 28, 2021
NEC Corporation
Ryuji ZENKYU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
PHASE NOISE COMPENSATION APPARATUS, DEMODULATION APPARATUS, COMMUNI...
Publication number
20190207683
Publication date
Jul 4, 2019
NEC Corporation
Norifumi KAMIYA
G01 - MEASURING TESTING
Information
Patent Application
COMMUNICATION APPARATUS, DEMODULATION APPARATUS, CARRIER REPRODUCTI...
Publication number
20160330064
Publication date
Nov 10, 2016
NEC Corporation
Norifumi Kamiya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CARRIER WAVE REPRODUCTION DEVICE AND CARRIER WAVE REPRODUCTION METHOD
Publication number
20150085960
Publication date
Mar 26, 2015
NEC Corporation
Norifumi Kamiya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PLL CIRCUIT
Publication number
20130181770
Publication date
Jul 18, 2013
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CARRIER RECOVERY CIRCUIT AND DEMODULATION CIRCUIT UNDER QUASI-COHER...
Publication number
20120224657
Publication date
Sep 6, 2012
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM, RECEIVER, TRANSMITTER, WIRELESS COMM...
Publication number
20100290552
Publication date
Nov 18, 2010
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Log Likelihood Ratio Arithmetic CircuitTransmission Apparatus, Log...
Publication number
20100150268
Publication date
Jun 17, 2010
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Radio Communication Apparatus, Radio Communication System and Radio...
Publication number
20090305735
Publication date
Dec 10, 2009
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CHANNEL SWITCHING SIGNAL GENERATING CIRCUIT AND CHANNEL SWITCHING S...
Publication number
20090292967
Publication date
Nov 26, 2009
Eisaku Sasaki
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
MODULATION AND DEMODULATION METHOD, MODULATION APPARATUS AND DEMODU...
Publication number
20090168917
Publication date
Jul 2, 2009
Seiichi Noda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Dual polarization transmission receiving system and local oscillato...
Publication number
20040127179
Publication date
Jul 1, 2004
NEC Corporation
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Clock synchronizing circuit
Publication number
20020106043
Publication date
Aug 8, 2002
Eisaku Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE