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Yasunari Okamoto
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Nara, JP
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last 30 patents
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Patent Grant
Cation exchange polyimide resin and use thereof
Patent number
5,157,055
Issue date
Oct 20, 1992
Sharp Kabushiki Kaisha
Yoshiro Akagi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for evaluating a lithium niobate thin film and apparatus for...
Patent number
5,128,007
Issue date
Jul 7, 1992
Sharp Kabushiki Kaisha
Hironori Matsunaga
G02 - OPTICS
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Patent Grant
Method of producing ferroelectric LiNb.sub.1-31 x Ta.sub.x O.sub.3...
Patent number
4,981,714
Issue date
Jan 1, 1991
Sharp Kabushiki Kaisha
Hirotaka Ohno
C30 - CRYSTAL GROWTH