Makoto Ohba

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing modified cross-section material
- Patent number 5,890,389
- Issue date Apr 6, 1999
- Hitachi Cable, Ltd.
- Makoto Ohba
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...