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Takahiko Iriyama
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Fuji, JP
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last 30 patents
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Patent Grant
Magnetic materials containing rare earth element iron nitrogen and...
Patent number
5,186,766
Issue date
Feb 16, 1993
Asahi Kasei Kogyo Kabushiki Kaisha
Takahiko Iriyama
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Magnetic material containing rare earth element, iron, nitrogen, hy...
Patent number
5,164,104
Issue date
Nov 17, 1992
Asahi Kasei Kogyo Kabushiki Kaisha
Kurima Kobayashi
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES