Hachinohe Smelting Co., Ltd.

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Tokyo, JA

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Patents Grantslast 30 patents

Information Patent Grant
Repairing mortars for silicon carbide bricks
- Patent number 4,249,947
- Issue date Feb 10, 1981
- Hachinohe Smelting Co., Ltd.
- Haruyoshi Koga
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method for the manufacture of mercury free sulfuric acid
- Patent number 4,057,423
- Issue date Nov 8, 1977
- Mitsui Mining & Smelting Co., Ltd.
- Hisahiro Kinoshita
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method and apparatus for automatically casting non-ferrous metal
- Patent number 3,972,368
- Issue date Aug 3, 1976
- Hachinohe Smelting Co., Ltd.
- Takahiro Kikkawa
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method for the manufacture of mercury free sulfuric acid
- Patent number 3,954,451
- Issue date May 4, 1976
- Mitsui Mining & Smelting Co., Ltd.
- Hisahiro Kinoshita
- C01 - INORGANIC CHEMISTRY

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