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Keiji Yamasaki
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Yasugi, JP
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last 30 patents
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Patent Grant
Vane material and process for preparing same
Patent number
5,754,935
Issue date
May 19, 1998
Hitachi Metals, Ltd.
Yutaka Kubo
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Patent Grant
Rotary type compressor
Patent number
5,591,023
Issue date
Jan 7, 1997
Hitachi Metals, Ltd.
Hideki Nakamura
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES