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Fukitaka Abukawa
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Yokohama, JP
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last 30 patents
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Patent Grant
Gas-carburizing process and apparatus
Patent number
5,225,144
Issue date
Jul 6, 1993
Tokyo Heat Treating Company
Keishichi Nanba
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Patent Grant
Gas-carburizing process and apparatus
Patent number
5,133,813
Issue date
Jul 28, 1992
Tokyo Heat Treating Company Ltd.
Keishichi Nanba
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...