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Hiroshi Oooka
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Mobara, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Organic electroluminescence display device
Patent number
8,076,843
Issue date
Dec 13, 2011
Hitachi Displays, Ltd.
Hirotsugu Sakamoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Organic electroluminescent display device
Patent number
7,888,862
Issue date
Feb 15, 2011
Hitachi Displays, Ltd.
Hiroshi Oooka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Organic electroluminescence display device
Patent number
7,830,341
Issue date
Nov 9, 2010
Hitachi Displays, Ltd.
Hiroshi Oooka
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Organic electroluminescent display device having two sealed EL disp...
Patent number
7,622,861
Issue date
Nov 24, 2009
Hitachi Displays, Ltd.
Hiroshi Oooka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Display device and apparatus
Patent number
7,423,865
Issue date
Sep 9, 2008
Hitachi Displays Ltd.
Hiroshi Oooka
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
Light emitting device
Publication number
20090026447
Publication date
Jan 29, 2009
Hitachi Displays, Ltd.
Masato ITO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE
Publication number
20080054800
Publication date
Mar 6, 2008
Hiroshi Oooka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Organic Electroluminescence Display Device
Publication number
20070242004
Publication date
Oct 18, 2007
HIROSHI OOOKA
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
ORGANIC ELECTROLUMINESCENCE DISPLAY DEVICE
Publication number
20070241672
Publication date
Oct 18, 2007
Hirotsugu Sakamoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Organic light emitting display device
Publication number
20070236425
Publication date
Oct 11, 2007
Masamitus Furuie
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Display device and apparatus
Publication number
20060002064
Publication date
Jan 5, 2006
Hiroshi Oooka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Organic electroluminescent display device
Publication number
20050179378
Publication date
Aug 18, 2005
Hiroshi Oooka
H01 - BASIC ELECTRIC ELEMENTS