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Tachikawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Mobile terminal and wireless communication system
Patent number
7,650,162
Issue date
Jan 19, 2010
Hitachi, Ltd.
Hideya Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method, system, and apparatus for detecting a position of a termina...
Patent number
7,353,032
Issue date
Apr 1, 2008
Hitachi, Ltd.
Atsushi Ogino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio signal receiving method and radio signal receiver
Patent number
7,336,740
Issue date
Feb 26, 2008
Hitachi, Ltd.
Kenichi Mizugaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless position measurement method and wireless position measurem...
Patent number
7,266,098
Issue date
Sep 4, 2007
Hitachi, Ltd.
Atsushi Ogino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital radio communication system for multi-application
Patent number
7,233,581
Issue date
Jun 19, 2007
Hitachi, Ltd.
Hideya Suzuki
G08 - SIGNALLING
Information
Patent Grant
Method, system, and apparatus for detecting a position of a termina...
Patent number
7,167,712
Issue date
Jan 23, 2007
Hitachi, Ltd.
Atsushi Ogino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Position calculation method and a mobile terminal and a server ther...
Patent number
7,110,775
Issue date
Sep 19, 2006
Hitachi, Ltd.
Atsushi Ogino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Software defined radio and radio system
Patent number
7,043,023
Issue date
May 9, 2006
Hitachi, Ltd.
Koji Watanabe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Terminal and server for mobile terminal positioning system
Patent number
6,750,812
Issue date
Jun 15, 2004
Hitachti, Ltd.
Kenichi Mizugaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Fixed wireless access system and apparatus therefor
Patent number
6,731,905
Issue date
May 4, 2004
Hitachi, Ltd.
Atsushi Ogino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Diversity wireless communication method and its wireless communicat...
Patent number
6,456,830
Issue date
Sep 24, 2002
Hitachi, Ltd.
Atsushi Ogino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Diversity wireless communication method and its wireless communicat...
Patent number
6,308,054
Issue date
Oct 23, 2001
Hitachi, Ltd.
Atsushi Ogino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Diversity wireless communication method and its wireless communicat...
Patent number
6,249,669
Issue date
Jun 19, 2001
Hitachi, Ltd.
Atsushi Ogino
G01 - MEASURING TESTING
Information
Patent Grant
Traffic channel assignment based on traffic density and signal quality
Patent number
5,903,843
Issue date
May 11, 1999
Hitachi, Ltd.
Hideya Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile communication switching across cell boundaries
Patent number
5,432,842
Issue date
Jul 11, 1995
Hitachi, Ltd.
Yasuaki Kinoshita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile communication system and location registration method in mob...
Patent number
5,379,451
Issue date
Jan 3, 1995
Hitachi, Ltd.
Arata Nakagoshi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Intermittenceless switching system
Patent number
5,353,281
Issue date
Oct 4, 1994
Kokusai Electric Co., Ltd.
Hiroshi Kuwahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for dynamically regulating a power saving period...
Patent number
5,301,225
Issue date
Apr 5, 1994
Hitachi, Ltd.
Kazuhiro Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
In-vehicle radar device and communication device
Publication number
20070164896
Publication date
Jul 19, 2007
HITACHI, LTD.
Hideya Suzuki
G08 - SIGNALLING
Information
Patent Application
Method, system, and apparatus for detecting a position of a termina...
Publication number
20070087760
Publication date
Apr 19, 2007
Hitachi, Ltd.
Atsushi Ogino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Mobile terminal and wireless communication system
Publication number
20060142017
Publication date
Jun 29, 2006
HITACHI, LTD.
Hideya Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless position measurement method and wireless position measurem...
Publication number
20050078626
Publication date
Apr 14, 2005
Hitachi, Ltd.
Atsushi Ogino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Radio signal receiving method and radio signal receiver
Publication number
20050013392
Publication date
Jan 20, 2005
Kenichi Mizugaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Position calculation method and a mobile terminal and a server ther...
Publication number
20040203913
Publication date
Oct 14, 2004
Hitachi, Ltd.
Atsushi Ogino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Mobile communication terminal device and a method of selecting a wi...
Publication number
20040116134
Publication date
Jun 17, 2004
Toshihide Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method, system, and apparatus for detecting a position of a termina...
Publication number
20040046693
Publication date
Mar 11, 2004
Atsushi Ogino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Terminal and server for mobile terminal positioning system
Publication number
20030128163
Publication date
Jul 10, 2003
Hitachi, Ltd.
Kenichi Mizugaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Software defined radio and radio system
Publication number
20020144134
Publication date
Oct 3, 2002
Koji Watanabe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Fixed wireless access system and apparatus therefor
Publication number
20020032031
Publication date
Mar 14, 2002
Hitachi, Ltd.
Atsushi Ogino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Diversity wireless communication method and its wireless communicat...
Publication number
20020016156
Publication date
Feb 7, 2002
Hitachi, Ltd.
Atsushi Ogino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Digital radio communication system for multi-application
Publication number
20020006120
Publication date
Jan 17, 2002
Hideya Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Diversity wireless communication method and its wireless communicat...
Publication number
20010003088
Publication date
Jun 7, 2001
Hitachi, Ltd.
Atsushi Ogino
H04 - ELECTRIC COMMUNICATION TECHNIQUE