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Patents Grants
last 30 patents
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Patent Grant
Mobile communication system, network node, and mobile communication...
Patent number
10,172,056
Issue date
Jan 1, 2019
NTT DoCoMo, Inc.
Itsuma Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
IP multimedia subsystem, proxy session control apparatus, and commu...
Patent number
9,839,063
Issue date
Dec 5, 2017
NTT DoCoMo, Inc.
Itsuma Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile communication method, mobile management node, positioning ca...
Patent number
8,489,116
Issue date
Jul 16, 2013
NTT DoCoMo, Inc.
Katsutoshi Nishida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
SWITCHING EQUIPMENT, CONTROL SERVER, AND COMMUNICATION METHOD
Publication number
20180227981
Publication date
Aug 9, 2018
NTT DoCoMo, Inc.
Daisuke Fujishima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MOBILE COMMUNICATION SYSTEM, COMMUNICATION CONTROL DEVICE, MOBILITY...
Publication number
20170311151
Publication date
Oct 26, 2017
NTT DoCoMo, Inc.
Aki Ohashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MOBILE COMMUNICATION SYSTEM, COMMUNICATION CONTROL DEVICE, MOBILITY...
Publication number
20170272926
Publication date
Sep 21, 2017
NTT DoCoMo, Inc.
Aki Ohashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
IP MULTIMEDIA SUBSYSTEM, PROXY SESSION CONTROL APPARATUS, AND COMMU...
Publication number
20160249401
Publication date
Aug 25, 2016
NTT DoCoMo, Inc.
Itsuma Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MOBILE COMMUNICATION SYSTEM, NETWORK NODE, AND MOBILE COMMUNICATION...
Publication number
20160227457
Publication date
Aug 4, 2016
NTT DoCoMo, Inc.
Itsuma Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PDN GATEWAY DEVICE AND MOBILE COMMUNICATION METHOD
Publication number
20160127959
Publication date
May 5, 2016
NTT DoCoMo, Inc.
Zhen Miao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MESSAGE BROADCAST SYSTEM, BASE STATION AND METHOD FOR MESSAGE BROAD...
Publication number
20130295873
Publication date
Nov 7, 2013
NTT DoCoMo, Inc.
Shogo Yabuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MOBILE COMMUNICATION METHOD, MOBILE MANAGEMENT NODE, AND MOBILE STA...
Publication number
20120225675
Publication date
Sep 6, 2012
NTT DoCoMo, Inc.
Katsutoshi Nishida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MOBILE COMMUNICATION METHOD, MOBILE MANAGEMENT NODE, POSITIONING CA...
Publication number
20120225647
Publication date
Sep 6, 2012
NTT DoCoMo, Inc.
Katsutoshi Nishida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MOBILE COMMUNICATION METHOD, MOBILE MANAGEMENT NODE, AND MOBILE STA...
Publication number
20120220312
Publication date
Aug 30, 2012
NTT DoCoMo, Inc.
Katsutoshi Nishida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MOBILE COMMUNICATION METHOD, MOBILE COMMUNICATION SYSTEM, MOBILE SW...
Publication number
20120088521
Publication date
Apr 12, 2012
NTT DoCoMo, Inc.
Katsutoshi Nishida
H04 - ELECTRIC COMMUNICATION TECHNIQUE