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Yoshiaki Fuwa
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Yokohama, JP
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last 30 patents
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Patent Grant
Monitoring apparatus for disaster prevention
Patent number
5,065,150
Issue date
Nov 12, 1991
Hochiki Corp.
Haruchika Machida
G08 - SIGNALLING
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Patent Grant
Exit guiding system
Patent number
4,796,018
Issue date
Jan 3, 1989
Hockiki Corp.
Tsutomu Nakanishi
G08 - SIGNALLING