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Noboru Ishikawa
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Tokyo, JP
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last 30 patents
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Patent Grant
Nondestructive method of quantitatively evaluating degree of plasti...
Patent number
6,111,405
Issue date
Aug 29, 2000
Seiko Instruments Inc.
Hiroshi Yamakawa
G01 - MEASURING TESTING
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Patent Grant
Method of detecting plastic deformation in steel using a differenti...
Patent number
5,982,172
Issue date
Nov 9, 1999
Seiko Instruments Inc.
Noboru Ishikawa
G01 - MEASURING TESTING