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Mariko Matsumoto
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Communication system, transmission device, reception device, and sy...
Patent number
8,489,133
Issue date
Jul 16, 2013
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
MIMO wireless communication system and method by a plurality of bas...
Patent number
8,265,675
Issue date
Sep 11, 2012
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Channel estimating apparatus, CDMA receiving apparatus, and channel...
Patent number
8,102,898
Issue date
Jan 24, 2012
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile communication system and wireless apparatus to be used for t...
Patent number
7,796,680
Issue date
Sep 14, 2010
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless apparatus employing multi-level QAM and method for estimat...
Patent number
7,715,487
Issue date
May 11, 2010
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio receiver and noise estimated value correction method
Patent number
7,649,964
Issue date
Jan 19, 2010
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Portable radio terminal and AFC control method
Patent number
7,606,545
Issue date
Oct 20, 2009
NEC Corporation
Mariko Matsumoto
H03 - BASIC ELECTRONIC CIRCUITRY
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
Equalizer and method of setting initial value for same
Patent number
7,406,122
Issue date
Jul 29, 2008
NEC Corporation
Shinya Shimobayashi
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
Wireless mobile station and system in which rake unit and finger un...
Patent number
7,327,799
Issue date
Feb 5, 2008
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Portable radio terminal and AFC control method
Patent number
7,305,219
Issue date
Dec 4, 2007
NEC Corporation
Mariko Matsumoto
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
CDMA radio device and simple path estimating method employed therefor
Patent number
7,292,556
Issue date
Nov 6, 2007
NEC Corporation
Mariko Matsumoto
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
Portable radio terminal and AFC control method
Patent number
7,043,216
Issue date
May 9, 2006
NEC Corporation
Mariko Matsumoto
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Portable radio system and portable radio equipment to be used in th...
Patent number
6,891,908
Issue date
May 10, 2005
NEC Corporation
Mariko Matsu Moto
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Low-power-consumption radio receiver
Patent number
6,748,206
Issue date
Jun 8, 2004
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile communication apparatus with an automatic frequency controller
Patent number
6,704,552
Issue date
Mar 9, 2004
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Data sampling method and device
Patent number
6,191,718
Issue date
Feb 20, 2001
NEC Corporaton
Mariko Matsumoto
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Communication apparatus
Patent number
6,078,578
Issue date
Jun 20, 2000
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Secret information identification system
Patent number
5,936,543
Issue date
Aug 10, 1999
NEC Corporation
Mariko Matsumoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Analog wrist watch and pager providing message display on cover glass
Patent number
5,892,455
Issue date
Apr 6, 1999
NEC Corporation
Mariko Matsumoto
G08 - SIGNALLING
Information
Patent Grant
Automatic gain control with constant gain coefficient during mobile...
Patent number
5,884,152
Issue date
Mar 16, 1999
NEC Corporation
Mariko Matsumoto
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Mobile communication system and mobile phone set having analog/ dig...
Patent number
5,848,353
Issue date
Dec 8, 1998
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
CDMA communication with a propagation delay between a base and a mo...
Patent number
5,617,410
Issue date
Apr 1, 1997
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Lost call detection display pager with repeat call discrimination c...
Patent number
5,572,197
Issue date
Nov 5, 1996
NEC Corporation
Mariko Matsumoto
G08 - SIGNALLING
Information
Patent Grant
Method of detecting a paging channel in a multi-frequency radio pag...
Patent number
5,565,859
Issue date
Oct 15, 1996
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Password processing whereby a foreign password is referred to after...
Patent number
5,475,755
Issue date
Dec 12, 1995
NEC Corporation
Mariko Matsumoto
G07 - CHECKING-DEVICES
Information
Patent Grant
Radio communication apparatus which can quickly recover from misjud...
Patent number
5,425,053
Issue date
Jun 13, 1995
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
COMMUNICATION SYSTEM, TRANSMISSION DEVICE, RECEPTION DEVICE, AND SY...
Publication number
20100178877
Publication date
Jul 15, 2010
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Mobile Communication System and Wireless Apparatus to be Used for t...
Publication number
20090268786
Publication date
Oct 29, 2009
NEC Corporation
Mariko MATSUMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CHANNEL ESTIMATING APPARATUS, CDMA RECEIVING APPARATUS, AND CHANNEL...
Publication number
20090046588
Publication date
Feb 19, 2009
NEC CORPORATION
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYNCHRONIZATION DETECTION
Publication number
20080318532
Publication date
Dec 25, 2008
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MIMO WIRELESS COMMUNICATION SYSTEM AND METHOD BY A PLURALITY OF BAS...
Publication number
20080192682
Publication date
Aug 14, 2008
NEC Corporation
Mariko MATSUMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RADIO RECEIVER AND NOISE ESTIMATED VALUE CORRECTION METHOD
Publication number
20070183537
Publication date
Aug 9, 2007
NEC Corporation
Mariko Matsumoto
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
Equalizer and method of setting initial value for same
Publication number
20050129106
Publication date
Jun 16, 2005
NEC Corporation
Shinya Shimobayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Portable radio terminal and AFC control method
Publication number
20050111595
Publication date
May 26, 2005
NEC Corporation
Mariko Matsumoto
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Portable radio terminal and AFC control method
Publication number
20050105655
Publication date
May 19, 2005
NEC Corporation
Mariko Matsumoto
H03 - BASIC ELECTRONIC CIRCUITRY
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
Wireless apparatus employing multi-level QAM and method for estimat...
Publication number
20040114692
Publication date
Jun 17, 2004
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CDMA radio device and simple path estimating method employed therefor
Publication number
20040047318
Publication date
Mar 11, 2004
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless mobile station and wireless communication system with the...
Publication number
20030153350
Publication date
Aug 14, 2003
NEC Corporation
Mariko Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Portable radio terminal and AFC control method
Publication number
20020098817
Publication date
Jul 25, 2002
NEC Corporation
Mariko Matsumoto
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Portable radio system and portable radio equipment to be used in th...
Publication number
20010053192
Publication date
Dec 20, 2001
Mariko Matsu Moto
H03 - BASIC ELECTRONIC CIRCUITRY