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Yokohama-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Relay terminal, base station, charging server, communication system...
Patent number
7,373,103
Issue date
May 13, 2008
NTT DoCoMo, Inc.
Hijin Sato
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Cell control method and cell system
Patent number
7,305,247
Issue date
Dec 4, 2007
NTT DoCoMo, Inc.
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cell formation control method, a mobile communications system, and...
Patent number
7,292,860
Issue date
Nov 6, 2007
NTT DoCoMo, Inc.
Hideki Tobe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile communication system, mobile communication method, wireless...
Patent number
7,254,132
Issue date
Aug 7, 2007
NTT DoCoMo, Inc.
Toshiaki Takao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multicast service providing system, multicast service providing met...
Patent number
7,254,409
Issue date
Aug 7, 2007
NTT DoCoMo, Inc.
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multicast service providing system, multicast service providing met...
Patent number
7,184,784
Issue date
Feb 27, 2007
NTT DoCoMo, Inc.
Hijin Sato
Information
Patent Grant
Connection acceptance control scheme by obtaining available quality...
Patent number
7,155,234
Issue date
Dec 26, 2006
NTT DoCoMo, Inc.
Daisuke Kitazawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless base station, method of selecting wireless base station, m...
Patent number
7,136,662
Issue date
Nov 14, 2006
NTT DoCoMo, Inc.
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication apparatus and wireless channel assignment me...
Patent number
7,130,636
Issue date
Oct 31, 2006
NTT DoCoMo, Inc.
Daisuke Kitazawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cell formation control method, a mobile communications system, and...
Patent number
7,110,769
Issue date
Sep 19, 2006
NTT DoCoMo, Inc.
Hideki Tobe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Base station for use in multi-network connection communication syst...
Patent number
7,006,847
Issue date
Feb 28, 2006
NTT DoCoMo, Inc.
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Rendering multicast service with sufficient reception quality to wi...
Patent number
6,895,216
Issue date
May 17, 2005
NTT DoCoMo, Inc.
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Autonomous zone forming communication device and autonomous zone fo...
Patent number
6,882,845
Issue date
Apr 19, 2005
NTT DoCoMo, Inc.
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Handover control method and system
Patent number
6,871,071
Issue date
Mar 22, 2005
NTT DoCoMo, Inc.
Toshiaki Takao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
RETRANSMISSION CONTROL METHOD AND SYSTEM FOR MULTICAST INFORMATION...
Publication number
20070162810
Publication date
Jul 12, 2007
NTT DoCoMo, Inc.
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Cell formation control method, a mobile communications system, and...
Publication number
20060172731
Publication date
Aug 3, 2006
NTT DoCoMo, Inc.
Hideki Tobe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless base station, wireless base station selection method, mult...
Publication number
20060160549
Publication date
Jul 20, 2006
NTT DoCoMo, Inc.
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Relay terminal, base station, charging server, communication system...
Publication number
20050222948
Publication date
Oct 6, 2005
NTT DoCoMo Inc.
Hijin Sato
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Wireless base station, method of selecting wireless base station, m...
Publication number
20030157966
Publication date
Aug 21, 2003
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Cell formation control method, a mobile communications system, and...
Publication number
20030050066
Publication date
Mar 13, 2003
NTT DoCoMo, Inc.
Hideki Tobe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Autonomous zone forming communication device and autonomous zone fo...
Publication number
20030036409
Publication date
Feb 20, 2003
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Mobile communication system, mobile communication method, wireless...
Publication number
20020163902
Publication date
Nov 7, 2002
NTT DoCoMo, Inc.
Toshiaki Takao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Handover control method and system
Publication number
20020160777
Publication date
Oct 31, 2002
Toshiaki Takao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Connection acceptance control scheme by obtaining available quality...
Publication number
20020123314
Publication date
Sep 5, 2002
NTT DoCoMo, Inc.
Daisuke Kitazawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Multicast service providing system, multicast service providing met...
Publication number
20020106985
Publication date
Aug 8, 2002
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Cell control method and cell system
Publication number
20020077142
Publication date
Jun 20, 2002
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Base station for use in multi-network connection communication syst...
Publication number
20020061766
Publication date
May 23, 2002
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for allocating radio resource, radio communication apparatus...
Publication number
20020042275
Publication date
Apr 11, 2002
NTT DoCoMo, Inc.
Daisuke Kitazawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless communication apparatus and wireless channel assignment me...
Publication number
20020037729
Publication date
Mar 28, 2002
NTT DoCoMo, Inc.
Daisuke Kitazawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Retransmission control method and system for multicast information...
Publication number
20020028687
Publication date
Mar 7, 2002
NTT DoCoMo, Inc.
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Rendering multicast service with sufficient reception quality to wi...
Publication number
20020003798
Publication date
Jan 10, 2002
NTT DoCoMo, Inc.
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Retransmission control method, information delivery apparatus and r...
Publication number
20010049291
Publication date
Dec 6, 2001
NTT DoCoMo, Inc.
Hijin Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE