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Atsushi Kawabata
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Hitachi-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Electric circuit device, electric circuit module, and power converter
Patent number
7,961,472
Issue date
Jun 14, 2011
Hitachi, Ltd.
Takeshi Tokuyama
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Train detection system and a train detection method
Patent number
7,200,470
Issue date
Apr 3, 2007
Hitachi, Ltd.
Kenji Oguma
B61 - RAILWAYS
Information
Patent Grant
Elevator system utilizing wireless transmission units to exchange c...
Patent number
7,134,530
Issue date
Nov 14, 2006
Hitachi, Ltd.
Nobuhisa Motoyama
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Transmitter and receiver device for train detection
Patent number
7,027,901
Issue date
Apr 11, 2006
Hitachi, Ltd.
Kenji Oguma
B61 - RAILWAYS
Information
Patent Grant
Elevator system having terminals with wireless transmitting/receivi...
Patent number
6,976,561
Issue date
Dec 20, 2005
Hitachi, Ltd.
Nobuhisa Motoyama
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Train detection system and a train detection method cross reference...
Patent number
6,829,526
Issue date
Dec 7, 2004
Hitachi, Ltd.
Kenji Oguma
B61 - RAILWAYS
Information
Patent Grant
Train detection system and a train detection method
Patent number
6,604,031
Issue date
Aug 5, 2003
Hitachi, Ltd.
Kenji Oguma
B61 - RAILWAYS
Information
Patent Grant
Elevator system with wireless elevator control transmit/receive unit
Patent number
6,598,710
Issue date
Jul 29, 2003
Hitachi, Ltd.
Nobuhisa Motoyama
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Train detection system
Patent number
6,470,244
Issue date
Oct 22, 2002
Hitachi, Ltd.
Kenji Oguma
B61 - RAILWAYS
Information
Patent Grant
Elevator system having wireless transmitting/receiving units
Patent number
6,446,761
Issue date
Sep 10, 2002
Hitachi, Ltd.
Nobuhisa Motoyama
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Railway information transmission method and system
Patent number
6,374,165
Issue date
Apr 16, 2002
Hitachi, Ltd.
Kenji Oguma
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Train detection system and a train detection method
Patent number
6,317,664
Issue date
Nov 13, 2001
Hitachi, Ltd.
Kenji Oguma
B61 - RAILWAYS
Information
Patent Grant
Train detection system and a train detection method
Patent number
6,230,085
Issue date
May 8, 2001
Hitachi, Ltd.
Kenji Oguma
B61 - RAILWAYS
Information
Patent Grant
Railway information transmission method and system
Patent number
6,230,086
Issue date
May 8, 2001
Hitachi, Ltd.
Kenji Oguma
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for generating object motion path, method of s...
Patent number
5,717,848
Issue date
Feb 10, 1998
Hitachi, Ltd.
Norito Watanabe
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Three-dimensional graphic system with an editor for generating a te...
Patent number
5,680,525
Issue date
Oct 21, 1997
Hitachi, Ltd.
Toshio Sakai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Gray-scale font generating apparatus utilizing a blend ratio
Patent number
5,625,772
Issue date
Apr 29, 1997
Hitachi, Ltd.
Naomi Yamazaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System for centrally controlling letter data
Patent number
5,600,770
Issue date
Feb 4, 1997
Hitachi, Ltd.
Atsushi Kawabata
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Television broadcasting method and system enabling picture broadcas...
Patent number
5,502,497
Issue date
Mar 26, 1996
Hitachi, Ltd.
Kimiya Yamaashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Train control system
Patent number
5,487,516
Issue date
Jan 30, 1996
Hitachi, Ltd.
Satoru Murata
B61 - RAILWAYS
Information
Patent Grant
System for centrally controlling letter data
Patent number
5,444,829
Issue date
Aug 22, 1995
Hitachi, Ltd.
Atsushi Kawabata
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Graphic processing method for drawing an area defined by clipping o...
Patent number
5,287,440
Issue date
Feb 15, 1994
Hitachi, Ltd.
Kimiya Yamaashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data display method
Patent number
5,151,974
Issue date
Sep 29, 1992
Hitachi, Ltd.
Masayuki Tani
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method of extracting an image of a moving object
Patent number
4,783,833
Issue date
Nov 8, 1988
Hitachi, Ltd.
Atsushi Kawabata
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
Train detection system and a train detection method
Publication number
20060155433
Publication date
Jul 13, 2006
Kenji Oguma
B61 - RAILWAYS
Information
Patent Application
Elevator system
Publication number
20060086573
Publication date
Apr 27, 2006
Nobuhisa Motoyama
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Train detection system and a train detection method
Publication number
20050075765
Publication date
Apr 7, 2005
Kenji Oguma
B61 - RAILWAYS
Information
Patent Application
Train detection system and a train detection method cross reference...
Publication number
20040030467
Publication date
Feb 12, 2004
Kenji Oguma
B61 - RAILWAYS
Information
Patent Application
Elevator system
Publication number
20040007430
Publication date
Jan 15, 2004
Nobuhisa Motoyama
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Train detection system and a train detection method
Publication number
20020193917
Publication date
Dec 19, 2002
Kenji Oguma
B61 - RAILWAYS
Information
Patent Application
Elevator system
Publication number
20020189907
Publication date
Dec 19, 2002
Nobuhisa Motoyama
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Train detection system and a train detection method
Publication number
20020029100
Publication date
Mar 7, 2002
Kenji Oguma
B61 - RAILWAYS
Information
Patent Application
System for centrally controlling letter data
Publication number
20010052901
Publication date
Dec 20, 2001
Hitachi, Ltd
Atsushi Kawabata
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Train detection system and a train detection method
Publication number
20010029412
Publication date
Oct 11, 2001
Kenji Oguma
B61 - RAILWAYS
Information
Patent Application
Railway information transmission method and system
Publication number
20010012977
Publication date
Aug 9, 2001
Kenji Oguma
B61 - RAILWAYS