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Tsutomu Kusaki
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Yokohama-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Switching center for mobile handover
Patent number
7,729,699
Issue date
Jun 1, 2010
Hitachi Communication Technologies, Ltd.
Tsutomu Kusaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system
Patent number
7,079,513
Issue date
Jul 18, 2006
Hitachi, Ltd.
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system
Patent number
6,795,414
Issue date
Sep 21, 2004
Hitachi, Ltd.
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Handover method in mobile communication system
Patent number
6,754,495
Issue date
Jun 22, 2004
Hitachi, Ltd.
Tsutomu Kusaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication method authenticating a personal station and calculat...
Patent number
6,333,977
Issue date
Dec 25, 2001
Hitachi, Ltd.
Tsutomu Kusaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system
Patent number
6,289,008
Issue date
Sep 11, 2001
Hitachi, Ltd.
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Switching center for mobile handover
Patent number
6,263,204
Issue date
Jul 17, 2001
Hitachi, Ltd.
Tsutomu Kusaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Handover method in mobile communication system
Patent number
6,259,920
Issue date
Jul 10, 2001
Hitachi, Ltd.
Tsutomu Kusaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system
Patent number
6,178,165
Issue date
Jan 23, 2001
Hitachi, Ltd.
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Handover method in mobile communication system
Patent number
6,108,546
Issue date
Aug 22, 2000
Hitachi, Ltd.
Tsutomu Kusaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system
Patent number
6,049,534
Issue date
Apr 11, 2000
Hitachi, Ltd.
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio communication system authenticating a personal station and ca...
Patent number
5,991,379
Issue date
Nov 23, 1999
Hitachi, Ltd.
Tsutomu Kusaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile radio communications system
Patent number
5,983,107
Issue date
Nov 9, 1999
Hitachi, Ltd.
Masato Hayashi
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
Slots assignment method for control channel signal in mobile teleco...
Patent number
5,732,073
Issue date
Mar 24, 1998
Hitachi, Ltd.
Tsutomu Kusaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Communication system
Publication number
20040258023
Publication date
Dec 23, 2004
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Switching center for mobile handover
Publication number
20040213279
Publication date
Oct 28, 2004
Tsutomu Kusaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM
Publication number
20040202125
Publication date
Oct 14, 2004
Kenichi Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Handover method in mobile communication system
Publication number
20010019957
Publication date
Sep 6, 2001
Hitachi, Ltd.
Tsutomu Kusaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE