Ryota Yamaba

Person

Tokai, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Process for producing extra high tensile steel having excellent str...
- Patent number 5,827,379
- Issue date Oct 27, 1998
- Nippon Steel Corporation
- Yoshihiro Okamura
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing extra high tensile steel in 1080 MPa yield st...
- Patent number 5,447,581
- Issue date Sep 5, 1995
- Nippon Steel Corporation
- Yoshihiro Okamura
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of producing non-oriented magnetic steel plate having high m...
- Patent number 5,062,905
- Issue date Nov 5, 1991
- Nippon Steel Corporation
- Yukio Tomita
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of producing high tension steel superior in weldability and...
- Patent number 5,061,325
- Issue date Oct 29, 1991
- Nippon Steel Corporation
- Yoshihiro Okamura
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of producing non-oriented magnetic steel plate having high m...
- Patent number 5,037,493
- Issue date Aug 6, 1991
- Nippon Steel Corporation
- Yukio Tomita
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing high-strength steel having improved weldability
- Patent number 4,988,393
- Issue date Jan 29, 1991
- Nippon Steel Corporation
- Ryota Yamaba
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of producing non-oriented magnetic steel heavy plate having...
- Patent number 4,950,336
- Issue date Aug 21, 1990
- Nippon Steel Corporation
- Yukio Tomita
- C21 - METALLURGY OF IRON

Ryota Yamaba

Person

Patents Grantslast 30 patents

Process for producing extra high tensile steel having excellent str...

Process for producing extra high tensile steel in 1080 MPa yield st...

Method of producing non-oriented magnetic steel plate having high m...

Method of producing high tension steel superior in weldability and...

Method of producing non-oriented magnetic steel plate having high m...

Method for producing high-strength steel having improved weldability

Method of producing non-oriented magnetic steel heavy plate having...