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Hidetaka Sakai
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Higashiosaka, JP
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last 30 patents
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Patent Grant
Method for confirming authenticity of sheet
Patent number
6,868,173
Issue date
Mar 15, 2005
Sanyo Electric Co., LTD
Hidetaka Sakai
G07 - CHECKING-DEVICES
Information
Patent Grant
Method of judging truth of paper type and method of judging directi...
Patent number
6,327,543
Issue date
Dec 4, 2001
Sanyo Electric Co., LTD
Hideki Nakajima
G07 - CHECKING-DEVICES
Information
Patent Grant
Method of judging truth of paper type and method of judging directi...
Patent number
6,253,158
Issue date
Jun 26, 2001
Sanyo Electric Co., LTD
Hideki Nakajima
G07 - CHECKING-DEVICES
Information
Patent Grant
Method of judging truth of paper type and method of judging directi...
Patent number
6,157,895
Issue date
Dec 5, 2000
Sanyo Electric Co., Ltd.
Hideki Nakajima
G07 - CHECKING-DEVICES