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Motohiro Satoh
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Ibaraki, JP
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last 30 patents
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Patent Grant
Semiconductor cooling apparatus
Patent number
4,977,444
Issue date
Dec 11, 1990
Hitachi, Ltd.
Tadakatsu Nakajima
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Sealed structure and production method thereof
Patent number
4,872,606
Issue date
Oct 10, 1989
Hitachi, Ltd.
Motohiro Satoh
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES