Masahiro Ohara

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Oita, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hot rolled steel sheet excellent in chemical convertibility and met...
- Patent number 7,820,099
- Issue date Oct 26, 2010
- Nippon Steel Corporation
- Teruki Hayashida
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
High burring, high strength steel sheet excellent in softening resi...
- Patent number 7,749,338
- Issue date Jul 6, 2010
- Nippon Steel Corporation
- Tatsuo Yokoi
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Hot rolled steel sheet excellent in chemical convertibility and met...
- Publication number 20070138138
- Publication date Jun 21, 2007
- Teruki Hayashida
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
High strength steel sheet exhibiting good burring workability and e...
- Publication number 20060081312
- Publication date Apr 20, 2006
- Tatsuo Yokoi
- C21 - METALLURGY OF IRON