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Makoto Umekawa
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Hyogo, JP
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last 30 patents
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Patent Grant
Switching device
Patent number
7,205,494
Issue date
Apr 17, 2007
Mitsubishi Denki Kabushiki Kaisha
Shinji Misaki
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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last 30 patents
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Patent Application
Push button-type switch device using hinge
Publication number
20060054483
Publication date
Mar 16, 2006
Shinji Misaki
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS