Masayuki Ohta

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ferritic stainless steel sheet having superior sulfuric acid corros...
- Patent number 8,152,937
- Issue date Apr 10, 2012
- JFE Steel Corporation
- Tomohiro Ishii
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
FERRITIC STAINLESS STEEL SHEET HAVING SUPERIOR PUNCHING WORKABILITY...
- Publication number 20110061777
- Publication date Mar 17, 2011
- JFE STEEL CORPORATION
- Tomohiro Ishii
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
FERRITIC STAINLESS STEEL SHEET HAVING SUPERIOR SULFURIC ACID CORROS...
- Publication number 20100139818
- Publication date Jun 10, 2010
- JFE STEEL CORPORATION
- Tomohiro Ishii
- C21 - METALLURGY OF IRON