Nobuhiro Tsujii

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Hyogo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Production of cold working tool steel
- Patent number 6,053,991
- Issue date Apr 25, 2000
- Sanyo Special Steel Co., Ltd.
- Daien Yokoi
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of producing corrosion-, heat- and wear-resistant member, an...
- Patent number 4,917,961
- Issue date Apr 17, 1990
- Sanyo Special Steel Co., Ltd.
- Nobuhiro Tsujii
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...