Kiyoshi Yamaji

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Kitakyushu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Stainless steel for brake disc excellent in resistance to temper so...
- Patent number 6,464,803
- Issue date Oct 15, 2002
- Nippon Steel Corporation
- Masayuki Tendo
- C21 - METALLURGY OF IRON
Information Patent Grant
Brake disc produced from martensitic stainless steel and process fo...
- Patent number 5,979,614
- Issue date Nov 9, 1999
- Nippon Steel Corporation
- Akihiko Takahashi
- C21 - METALLURGY OF IRON