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Kazuhisa Hirano
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Fujieda, JP
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last 30 patents
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Patent Grant
Modified liquid resole phenolic resinous composition for friction m...
Patent number
4,647,631
Issue date
Mar 3, 1987
Sumitomo Durez Company, Ltd.
Kenichi Noguchi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Patent Grant
Friction material containing steel wool as reinforcing agent
Patent number
4,369,263
Issue date
Jan 18, 1983
Sumitomo Durez Company Ltd.
Noriaki Matsushima
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...