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Tomoaki Kumagai
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Wireless communication method and access point apparatus
Patent number
9,184,809
Issue date
Nov 10, 2015
Nippon Telegraph and Telephone Corporation
Riichi Kudo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless packet communication method and wireless packet communicat...
Patent number
8,989,108
Issue date
Mar 24, 2015
Nippon Telegraph and Telephone Corporation
Kengo Nagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless packet communication method
Patent number
8,989,219
Issue date
Mar 24, 2015
Nippon Telegraph and Telephone Corporation
Kengo Nagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless packet communication method and wireless packet communicat...
Patent number
7,974,243
Issue date
Jul 5, 2011
Nippon Telegraph and Telephone Corporation
Kengo Nagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless packet communication method
Patent number
7,953,115
Issue date
May 31, 2011
Nippon Telegraph and Telephone Corporation
Kengo Nataga
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless packet communication method and wireless packet communicat...
Patent number
7,813,317
Issue date
Oct 12, 2010
Nippon Telegraph and Telephone Corporation
Kengo Nagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless packet communication method and wireless packet communicat...
Patent number
7,760,686
Issue date
Jul 20, 2010
Nippon Telegraph and Telephone Corporation
Kazuyoshi Saito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless packet communication method and apparatus
Patent number
7,668,143
Issue date
Feb 23, 2010
Nippon Telegraph and Telephone Corporation
Kengo Nagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless packet communication method and wireless packet communicat...
Patent number
7,545,781
Issue date
Jun 9, 2009
Nippon Telegraph and Telephone Corporation
Shinya Otsuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless packet communication method and wireless packet communicat...
Patent number
7,400,616
Issue date
Jul 15, 2008
Nippon Telegraph and Telephone Corporation
Kazuyoshi Saito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless packet communication method and wireless packet communicat...
Patent number
7,280,551
Issue date
Oct 9, 2007
Nippon Telegraph and Telephone Corporation
Kengo Nagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
OFDM packet communication receiver
Patent number
7,058,002
Issue date
Jun 6, 2006
Nippon Telegraph and Telephone Corporation
Tomoaki Kumagai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
OFDM packet communication receiver system
Patent number
6,658,063
Issue date
Dec 2, 2003
Nippon Telegraph and Telephone Corporation
Masato Mizoguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Coherent detection system for multicarrier modulation
Patent number
6,608,863
Issue date
Aug 19, 2003
Nippon Telegraph and Telephone Corporation
Takeshi Onizawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
WIRELESS COMMUNICATION METHOD AND ACCESS POINT APPARATUS
Publication number
20140204890
Publication date
Jul 24, 2014
Nippon Telegraph and Telephone Corporation
Riichi Kudo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless Packet Communication Method and Wireless Packet Communicat...
Publication number
20110216728
Publication date
Sep 8, 2011
Nippon Telegraph and Telephone Corporation
Kengo Nagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless Packet Communication Method
Publication number
20110194517
Publication date
Aug 11, 2011
Nippon Telegraph and Telephone Corporation
Kengo Nagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Packet communication method and packet communication device
Publication number
20060280204
Publication date
Dec 14, 2006
Kengo Nagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Radio packet communication method
Publication number
20060251028
Publication date
Nov 9, 2006
Kengo Nagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Radio packet communication method and radio packet communication ap...
Publication number
20060233146
Publication date
Oct 19, 2006
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Kengo Nagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Radio packet communication method
Publication number
20060171353
Publication date
Aug 3, 2006
Nippon Telegraph and Telephone Corporation
Kengo Nagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Radio packet communication method
Publication number
20060139201
Publication date
Jun 29, 2006
Nippon Telegraph and Telephone Corporation
Kengo Nagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Radio packet communication method and radio packet communication ap...
Publication number
20060109813
Publication date
May 25, 2006
Nippon Telegraph and Telephone Corporation
Kazuyoshi Saito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Radio packet communication method
Publication number
20060087998
Publication date
Apr 27, 2006
NIPPON TELEGRAPH AND TELEPHONE CORP.
Kazuyoshi Saito
H04 - ELECTRIC COMMUNICATION TECHNIQUE