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Kenji Tanaka
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Tosu, JP
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last 30 patents
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Patent Grant
Battery power source protecting device for an electromotive device
Patent number
6,388,426
Issue date
May 14, 2002
Matsushita Electric Industrial Co. Ltd.
Sadaaki Yokoo
G01 - MEASURING TESTING
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Patent Grant
Electronic typewriter
Patent number
4,906,114
Issue date
Mar 6, 1990
Matsushita Electric Industrial Co., Ltd.
Kenji Tanaka
G06 - COMPUTING CALCULATING COUNTING