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Souichi Ishiwata
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Tokyo, JP
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last 30 patents
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Patent Grant
Precision cutting apparatus and cutting method using the same
Patent number
6,361,404
Issue date
Mar 26, 2002
Disco Corporation
Souichi Ishiwata
B28 - WORKING CEMENT, CLAY, OR STONE
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Patent Grant
Precision cutting apparatus and cutting method using the same
Patent number
6,102,023
Issue date
Aug 15, 2000
Disco Corporation
Souichi Ishiwata
B28 - WORKING CEMENT, CLAY, OR STONE