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Yutaka Nakamura
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Tokyo, JP
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last 30 patents
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Patent Grant
Golden ornament and method for production thereof
Patent number
5,752,395
Issue date
May 19, 1998
Orient Watch Co.
Yutaka Nakamura
B44 - DECORATIVE ARTS
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Patent Grant
Vibration damping material of asphalt cement
Patent number
5,324,758
Issue date
Jun 28, 1994
Sohwa Shell Sekiyu Kabushiki Kaisha
Masaaki Takahashi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...