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Daisuke Ogura
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Kobe, JP
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last 30 patents
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Patent Grant
Spring steel superior in fatigue properties
Patent number
6,328,820
Issue date
Dec 11, 2001
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
Yoshinori Yamamoto
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...