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Soichi TSUMURA
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Kawasaki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Information distribution device, information reception device, syst...
Patent number
10,469,889
Issue date
Nov 5, 2019
NEC Corporation
Toshio Asai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System and method for mobile communication
Patent number
7,574,226
Issue date
Aug 11, 2009
NEC Corporation
Nahoko Takano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Synchronization establishment between a mobile station and base sta...
Patent number
7,403,789
Issue date
Jul 22, 2008
NEC Corporation
Nahoko Takano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile communication system, mobile station, base station, and pack...
Patent number
7,356,022
Issue date
Apr 8, 2008
NEC Corporation
Nahoko Takano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile radio communication system and base station, and mobile radi...
Patent number
7,209,762
Issue date
Apr 24, 2007
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Interpolation synchronous detection method and radio communication...
Patent number
6,912,259
Issue date
Jun 28, 2005
NEC Corporation
Soichi Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of assigning frequency using propagation loss
Patent number
6,781,974
Issue date
Aug 24, 2004
NEC Corporation
Soichi Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frame timing synchronization method
Patent number
6,754,257
Issue date
Jun 22, 2004
NEC Corporation
Soichi Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Correlator for realizing low current consumption
Patent number
6,690,716
Issue date
Feb 10, 2004
NEC Corporation
Soichi Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Rate matching method
Patent number
6,580,762
Issue date
Jun 17, 2003
NEC Corporation
Soichi Tsumura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
CDMA receiver comprising a synchronous timing notifying section cap...
Patent number
6,574,200
Issue date
Jun 3, 2003
NEC Corporation
Soichi Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
CDMA receiver with a reduced number of required high speed adders
Patent number
6,553,056
Issue date
Apr 22, 2003
NEC Corporation
Soichi Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Automatic gain control system and method of automatic gain control
Patent number
6,075,978
Issue date
Jun 13, 2000
NEC Corporation
Soichi Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus using first and second variable gain control c...
Patent number
6,044,253
Issue date
Mar 28, 2000
NEC Corporation
Soichi Tsumura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Compensated frequency source with latched temperature compensation,...
Patent number
5,977,839
Issue date
Nov 2, 1999
NEC Corporation
Soichi Tsumura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Level control circuit for portable radio communication apparatus
Patent number
5,918,166
Issue date
Jun 29, 1999
NEC Corportion
Soichi Tsumura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Filter unit adapted for miniaturization and for selecting a particu...
Patent number
5,883,553
Issue date
Mar 16, 1999
NEC Corporation
Soichi Tsumura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Power amplifier system with variable output
Patent number
5,831,477
Issue date
Nov 3, 1998
NEC Corporation
Soichi Tsumura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Wide range variable output amplifier apparatus with high efficiency
Patent number
5,796,306
Issue date
Aug 18, 1998
NEC Corporation
Soichi Tsumura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Analog to digital converter circuit
Patent number
5,748,129
Issue date
May 5, 1998
NEC Corporation
Soichi Tsumura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Received signal decision apparatus for digital modulated signal rec...
Patent number
5,710,795
Issue date
Jan 20, 1998
NEC Corporation
Soichi Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
DQPSK demodulator capable of improving a symbol error rate without...
Patent number
5,550,506
Issue date
Aug 27, 1996
NEC Corporation
Soichi Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Delay detection circuit
Patent number
5,511,097
Issue date
Apr 23, 1996
NEC Corporation
Soichi Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Demodulator and demodulation method for a digital phase modulated s...
Patent number
5,272,447
Issue date
Dec 21, 1993
NEC Corporation
Yukitsuna Furuya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
CSK communication system
Patent number
5,132,986
Issue date
Jul 21, 1992
NEC Home Electronics Ltd.
Kaoru Endo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
INFORMATION DISTRIBUTION DEVICE, INFORMATION RECEPTION DEVICE, SYST...
Publication number
20170127109
Publication date
May 4, 2017
NEC Corporation
Toshio ASAI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
INFORMATION DISTRIBUTION DEVICE, INFORMATION RECEPTION DEVICE, SYST...
Publication number
20140040948
Publication date
Feb 6, 2014
Toshio Asai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
PILOT SIGNAL TRANSMITTING METHOD, RADIO COMMUNICATION SYSTEM, AND A...
Publication number
20130215816
Publication date
Aug 22, 2013
Nahoko KURODA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PILOT SIGNAL TRANSMITTING METHOD, RADIO COMMUNICATION SYSTEM, AND A...
Publication number
20120113930
Publication date
May 10, 2012
NEC Corporation
Nahoko Kuroda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PILOT SIGNAL TRANSMITTING METHOD, RADIO COMMUNICATION SYSTEM, AND A...
Publication number
20090175370
Publication date
Jul 9, 2009
NEC Corporation
Nahoko Kuroda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and method for mobile communication
Publication number
20060159061
Publication date
Jul 20, 2006
NEC Corporation
Nahoko Takano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Mobile communication system, base station, mobile station, and radi...
Publication number
20060058051
Publication date
Mar 16, 2006
NEC Corporation
Nahoko Takano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Mobile radio communication system and base station, and mobile radi...
Publication number
20040127244
Publication date
Jul 1, 2004
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Mobile communication system, mobile station, base station, and pack...
Publication number
20040125766
Publication date
Jul 1, 2004
NEC Corporation
Nahoko Takano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Mobile communication system, mobile station, base station, and pack...
Publication number
20040127221
Publication date
Jul 1, 2004
NEC Corporation
Nahoko Takano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Mobile terminal and reception gain control method in mobile terminal
Publication number
20010046846
Publication date
Nov 29, 2001
NEC Corporation
Soichi Tsumura
H03 - BASIC ELECTRONIC CIRCUITRY