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Hiroshi Mitsuboshi
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Kanagawa, JP
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last 30 patents
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Patent Grant
Apparatus and method of forming an annular member
Patent number
6,332,260
Issue date
Dec 25, 2001
NSK Ltd.
Chuichi Sato
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
Apparatus for forming an annular member
Patent number
6,070,443
Issue date
Jun 6, 2000
NSK Ltd.
Chuichi Sato
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...