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Takamasa KAWAGUCHI
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Yokohama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Positional information transmitter, communication terminal, and pos...
Patent number
9,310,489
Issue date
Apr 12, 2016
Hitachi, Ltd.
Takamasa Kawaguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Positional information transmitter, positional information receiver...
Patent number
8,773,309
Issue date
Jul 8, 2014
Hitachi, Ltd.
Takamasa Kawaguchi
G01 - MEASURING TESTING
Information
Patent Grant
GPS signal transmitter and signal transmission method thereof
Patent number
8,432,311
Issue date
Apr 30, 2013
Hitachi, Ltd.
Tomoichi Ebata
G01 - MEASURING TESTING
Information
Patent Grant
Positioning system, position information transmitter, communication...
Patent number
8,299,965
Issue date
Oct 30, 2012
Hitachi Industrial Equipment Systems Co., Ltd.
Takamasa Kawaguchi
G01 - MEASURING TESTING
Information
Patent Grant
Positioning system, position information transmitter, communication...
Patent number
7,994,970
Issue date
Aug 9, 2011
Hitachi, Ltd.
Takamasa Kawaguchi
G01 - MEASURING TESTING
Information
Patent Grant
Wireless device, method for wireless communication system, and wire...
Patent number
7,664,066
Issue date
Feb 16, 2010
Hitachi, Ltd.
Takamasa Kawaguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
POSITIONAL INFORMATION TRANSMITTER, COMMUNICATION TERMINAL, AND POS...
Publication number
20120194383
Publication date
Aug 2, 2012
Hitachi, Ltd.
Takamasa Kawaguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
POSITIONING SYSTEM, POSITION INFORMATION TRANSMITTER, COMMUNICATION...
Publication number
20110291883
Publication date
Dec 1, 2011
Takamasa Kawaguchi
G01 - MEASURING TESTING
Information
Patent Application
POSITIONAL INFORMATION TRANSMITTER, POSITIONAL INFORMATION RECEIVER...
Publication number
20110260915
Publication date
Oct 27, 2011
Hitachi, Ltd.
Takamasa KAWAGUCHI
G01 - MEASURING TESTING
Information
Patent Application
GPS SIGNAL TRANSMITTER AND SIGNAL TRANSMISSION METHOD THEREOF
Publication number
20100194636
Publication date
Aug 5, 2010
Hitachi, Ltd
Tomoichi EBATA
G01 - MEASURING TESTING
Information
Patent Application
Positioning system, position information transmitter, communication...
Publication number
20090256742
Publication date
Oct 15, 2009
Takamasa Kawaguchi
G01 - MEASURING TESTING
Information
Patent Application
Wireless device, method for wireless communication system, and wire...
Publication number
20060002366
Publication date
Jan 5, 2006
Takamasa Kawaguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE