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Seiji Kumagai
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Aizuwakamatsu, JP
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last 30 patents
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Patent Grant
Copper alloy sheet for connectors and connectors formed of same
Patent number
5,667,752
Issue date
Sep 16, 1997
Mitsubishi Shindoh Co., Ltd.
Takeshi Suzuki
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Patent Grant
Copper alloy lead material for leads of a semiconductor device
Patent number
4,668,471
Issue date
May 26, 1987
Mitsubishi Shindoh Co., Ltd.
Rensei Futatsuka
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...