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Tomoko Hatakeyama
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Tokyo, JP
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last 30 patents
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Patent Grant
Map editing device for assisting updating of a three-dimensional di...
Patent number
5,864,632
Issue date
Jan 26, 1999
Hitachi, Ltd.
Yukio Ogawa
G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
Method for facility location
Patent number
5,805,446
Issue date
Sep 8, 1998
Hitachi, Ltd.
Tomoko Hatakeyama
G06 - COMPUTING CALCULATING COUNTING