Kunio Hata

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Patents Grantslast 30 patents

Information Patent Grant
Mold of precipitation hardenable copper alloy for continuous castin...
- Patent number 4,377,424
- Issue date Mar 22, 1983
- Chuetsu Metal Works Co., Ltd.
- Yutaka Hirao
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Brass having superior adhesion and wear resistant properties
- Patent number 4,191,564
- Issue date Mar 4, 1980
- Chuetsu Metal Works Co., Ltd.
- Yutaka Hirao
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...