Yoshikazu Matsumura

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Kitakyusyu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Twin-roll continuous casting method
- Patent number 5,901,777
- Issue date May 11, 1999
- Nippon Steel Corporation
- Yoshikazu Matsumura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Cold-rolled steel sheet and hot-dip galvanized cold-rolled steel sh...
- Patent number 5,690,755
- Issue date Nov 25, 1997
- Nippon Steel Corporation
- Naoki Yoshinaga
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing thin cast strip
- Patent number 5,584,337
- Issue date Dec 17, 1996
- Nippon Steel Corporation
- Hiroyuki Nakashima
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Thin steel sheet having excellent stretch-flange ability and proces...
- Patent number 5,567,250
- Issue date Oct 22, 1996
- Nippon Steel Corporation
- Satoshi Akamatsu
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Non-aging at room temperature ferritic single-phase cold-rolled ste...
- Patent number 5,486,241
- Issue date Jan 23, 1996
- Nippon Steel Corporation
- Kohsaku Ushioda
- C21 - METALLURGY OF IRON
Information Patent Grant
Ferritic steel having ultra-fine grains and a method for producing...
- Patent number 4,466,842
- Issue date Aug 21, 1984
- Nippon Steel Corporation
- Hiroshi Yada
- C21 - METALLURGY OF IRON