-
-
-
Image display device
-
Patent number 7,679,598
-
Issue date Mar 16, 2010
-
Hitachi, Ltd.
-
Makoto Tsumura
-
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
-
Image formation apparatus
-
Patent number 7,151,619
-
Issue date Dec 19, 2006
-
Hitachi, Ltd.
-
Yasutaka Toyoda
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
Image display device
-
Patent number 7,142,188
-
Issue date Nov 28, 2006
-
Hitachi, Ltd.
-
Makoto Tsumura
-
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
-
-
-
Image formation apparatus
-
Patent number 6,700,680
-
Issue date Mar 2, 2004
-
Hitachi, Ltd.
-
Yasutaka Toyoda
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE