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Takayuki Oouchi
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Hitachi-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Isolator and a modem device using the isolator
Patent number
7,522,692
Issue date
Apr 21, 2009
Hitachi, Ltd.
Seigoh Yukutake
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Isolator and a modem device using the isolator
Patent number
7,289,553
Issue date
Oct 30, 2007
Hitachi, Ltd.
Seigoh Yukutake
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Color/black-and-white switchable portable terminal and display unit
Patent number
7,038,641
Issue date
May 2, 2006
Hitachi, Ltd.
Shouichi Hirota
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Isolator and a modem device using the isolator
Patent number
6,603,807
Issue date
Aug 5, 2003
Hitachi, Ltd.
Seigoh Yukutake
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Isolator and a modem device using the isolator
Publication number
20070153886
Publication date
Jul 5, 2007
Seigoh Yukutake
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Color/black-and-white switchable portable terminal and display unit
Publication number
20040140972
Publication date
Jul 22, 2004
Shouichi Hirota
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Isolator and a modem device using the isolator
Publication number
20030169808
Publication date
Sep 11, 2003
Seigoh Yukutake
H04 - ELECTRIC COMMUNICATION TECHNIQUE