Yuji Kawahara

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Chigasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing magnesium alloys
- Patent number 4,347,077
- Issue date Aug 31, 1982
- Toyo Soda Manufacturing Co., Ltd.
- Takeshi Goto
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Refining additive and process for preparing same
- Patent number 4,217,133
- Issue date Aug 12, 1980
- Toyo Soda Manufacturing Co., Ltd.
- Takeshi Goto
- C21 - METALLURGY OF IRON