Yutaka Okabayashi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for forming wear-resistant layer and iron-based material, on...
- Patent number 6,139,973
- Issue date Oct 31, 2000
- Nihon Parkerizing Co., Ltd.
- Iwao Kawasaki
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR