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Hiroaki Sakai
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Hyogo, JP
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last 30 patents
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Patent Grant
Hydraulic circuit for large crane
Patent number
4,788,820
Issue date
Dec 6, 1988
Kabushiki Kaisha Kobe Seiko Sho
Hiroaki Sakai
B66 - HOISTING LIFTING HAULING
Patents Applications
last 30 patents
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Patent Application
SI-KILLED STEEL WIRE ROD HAVING EXCELLENT FATIGUE PROPERTIES, AND S...
Publication number
20150369322
Publication date
Dec 24, 2015
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
Tomoko SUGIMURA
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...