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Nobuo Sakai
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Fukuoka, JP
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last 30 patents
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Patent Grant
Apparatus and method for grinding and polishing spherical bodies
Patent number
6,071,179
Issue date
Jun 6, 2000
Mitsui High-Tec Inc.
Nobuo Sakai
B24 - GRINDING POLISHING
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Patent Grant
Carrying apparatus for spherical objects
Patent number
6,053,667
Issue date
Apr 25, 2000
Mitsui High-Tec Inc.
Nobuo Sakai
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Patent Grant
Carrying apparatus for spherical objects
Patent number
6,039,511
Issue date
Mar 21, 2000
Mitsui High-Tec Inc.
Nobuo Sakai
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...