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Shiro Tanabe
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
VPN composing method, interwork router, packet communication method...
Patent number
9,124,531
Issue date
Sep 1, 2015
Hitachi, Ltd.
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
VPN composing method, interwork router, packet communication method...
Patent number
8,582,587
Issue date
Nov 12, 2013
Hitachi, Ltd.
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Session QoS control apparatus
Patent number
8,239,468
Issue date
Aug 7, 2012
Hitachi, Ltd.
Hiroki Ikeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
VPN composing method, interwork router, packet communication method...
Patent number
7,983,281
Issue date
Jul 19, 2011
Hitachi, Ltd.
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile communication control method and mobile communication system
Patent number
7,974,269
Issue date
Jul 5, 2011
Hitachi, Ltd.
Yukiko Takeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for allocating subchannel in wireless network
Patent number
7,889,758
Issue date
Feb 15, 2011
Tsinghua University
Lei Li
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
VPN composing method, interwork router, packet communication method...
Patent number
7,881,311
Issue date
Feb 1, 2011
Hitachi, Ltd.
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Session QoS control apparatus
Patent number
7,606,914
Issue date
Oct 20, 2009
Hitachi, Ltd.
Hiroki Ikeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of implementing multi-party conference service by using broa...
Patent number
7,599,682
Issue date
Oct 6, 2009
Hitachi Communication Technologies, Ltd.
Yukiko Takeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet switching apparatus
Patent number
7,016,373
Issue date
Mar 21, 2006
Hitachi, Ltd.
Koji Wakayama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication method for terminals connected to IP networks to rece...
Patent number
6,829,232
Issue date
Dec 7, 2004
Hitachi, Ltd.
Yukiko Takeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
VPN composing method, interwork router, packet communication method...
Patent number
6,633,571
Issue date
Oct 14, 2003
Hitachi, Ltd.
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet terminal and packet communication network
Patent number
6,055,238
Issue date
Apr 25, 2000
Hitachi, Ltd.
Shiro Tanabe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile communication network and control method thereof
Patent number
5,749,053
Issue date
May 5, 1998
Hitachi, Ltd.
Tsutomu Kusaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telecommunications service control method in intelligent network
Patent number
5,701,412
Issue date
Dec 23, 1997
Hitachi, Ltd.
Yukiko Takeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multicast communications method
Patent number
5,612,959
Issue date
Mar 18, 1997
Hitachi, Ltd.
Akihiko Takase
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet switching method and system with self-routing switch
Patent number
5,333,131
Issue date
Jul 26, 1994
Hitachi, Ltd.
Shiro Tanabe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet switch
Patent number
5,177,736
Issue date
Jan 5, 1993
Hitachi Ltd.
Shiro Tanabe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for automatically converting a data flow description of a so...
Patent number
5,129,046
Issue date
Jul 7, 1992
Hitachi, Ltd.
Shiro Tanabe
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Multimedia bidirectional broadcast system
Patent number
5,027,400
Issue date
Jun 25, 1991
Hitachi Ltd.
Toru Baji
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Patents Applications
last 30 patents
Information
Patent Application
VPN COMPOSING METHOD, INTERWORK ROUTER, PACKET COMMUNICATION METHOD...
Publication number
20140050226
Publication date
Feb 20, 2014
Hitachi, Ltd
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
VPN COMPOSING METHOD, INTERWORK ROUTER, PACKET COMMUNICATION METHOD...
Publication number
20110268129
Publication date
Nov 3, 2011
Hitachi, Ltd
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SESSION QOS CONTROL APPARATUS
Publication number
20100034082
Publication date
Feb 11, 2010
Hiroki Ikeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
VPN COMPOSING METHOD, INTERWORK ROUTER, PACKET COMMUNICATION METHOD...
Publication number
20070258457
Publication date
Nov 8, 2007
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method of implementing multi-party conference service by using broa...
Publication number
20060223510
Publication date
Oct 5, 2006
Yukiko Takeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Mobile communication control method and mobile communication system
Publication number
20060077932
Publication date
Apr 13, 2006
Yukiko Takeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for allocating subchannel in wireless network
Publication number
20060056451
Publication date
Mar 16, 2006
Takashi Yano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
QoS oriented handover method for mobile IPv6 in MPLS network
Publication number
20050232188
Publication date
Oct 20, 2005
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication terminal device, communication terminal receiving met...
Publication number
20050207342
Publication date
Sep 22, 2005
Shiro Tanabe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Session QoS control apparatus
Publication number
20050117586
Publication date
Jun 2, 2005
Hiroki Ikeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Mobile IPv6 network having multiple home agents and method of load...
Publication number
20050047420
Publication date
Mar 3, 2005
Shiro Tanabe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
VPN composing method, interwork router, packet communication method...
Publication number
20040008706
Publication date
Jan 15, 2004
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Packet switching apparatus
Publication number
20020167938
Publication date
Nov 14, 2002
Hitachi, Ltd.
Koji Wakayama
H04 - ELECTRIC COMMUNICATION TECHNIQUE