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Sadakatsu Yanagisawa
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Minato-ku, Tokyo, JP
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last 30 patents
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Patent Grant
Artificial filling and prosthetic material
Patent number
5,697,980
Issue date
Dec 16, 1997
Sugio Otani
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Grant
Dental implant
Patent number
5,049,074
Issue date
Sep 17, 1991
Otani; Sugio
Sugio Otani
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Grant
Carbon artificial prosthetic material
Patent number
4,457,984
Issue date
Jul 3, 1984
Mitsubishi Chemical Industries, Ltd.
Sugio Otani
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE