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Naomasa Yoshida
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Yokohama-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
PoC server, PoC terminal, floor control method, and PoC terminal co...
Patent number
8,195,214
Issue date
Jun 5, 2012
NTT DoCoMo, Inc.
Naomasa Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system and communication method
Patent number
8,165,579
Issue date
Apr 24, 2012
NTT DoCoMo, Inc.
Akimichi Tanabe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication control server, communication terminal and communicat...
Patent number
7,853,278
Issue date
Dec 14, 2010
NTT DoCoMo, Inc.
Yosuke Hayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile communication terminal and storage medium
Patent number
7,774,026
Issue date
Aug 10, 2010
NTT DoCoMo, Inc.
Yosuke Hayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
PoC communication server apparatus, terminal apparatus and PoC comm...
Patent number
7,711,380
Issue date
May 4, 2010
NTT DoCoMo, Inc.
Atsushi Shimokawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
PoC server, PoC terminal, floor control method, and PoC terminal co...
Patent number
7,697,949
Issue date
Apr 13, 2010
NTT DoCoMo, Inc.
Naomasa Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
MOBILE COMMUNICATION METHOD AND PRIORITY CONTROL NODE
Publication number
20130142084
Publication date
Jun 6, 2013
NTT DoCoMo, Inc.
Kazuhito Tokunaga
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM AND COMMUNICATION METHOD
Publication number
20100159923
Publication date
Jun 24, 2010
NTT DoCoMo, Inc.
Akimichi Tanabe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PoC Server, PoC Terminal, Floor Control Method, and PoC Terminal Co...
Publication number
20100151896
Publication date
Jun 17, 2010
NTT DoCoMo, Inc.
Naomasa YOSHIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIP server, terminal device, subscriber information management devi...
Publication number
20070019572
Publication date
Jan 25, 2007
NTT DoCoMo, Inc.
Naomasa Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Mobile communication terminal and storage medium
Publication number
20070002735
Publication date
Jan 4, 2007
NTT DoCoMo, Inc.
Yosuke Hayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PoC server, PoC terminal, floor control method, and PoC terminal co...
Publication number
20060281482
Publication date
Dec 14, 2006
NTT DoCoMo, Inc.
Naomasa Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication control server, communication terminal and communicat...
Publication number
20060281481
Publication date
Dec 14, 2006
NTT DoCoMo, Inc.
Yosuke Hayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PoC communication server apparatus, terminal apparatus and PoC comm...
Publication number
20060234692
Publication date
Oct 19, 2006
NTT DoCoMo, Inc.
Atsushi Shimokawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE