Sumitomo Speical Metals Co., Ltd.

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnets having improved corrosion resistance
- Patent number 5,089,066
- Issue date Feb 18, 1992
- Sumitomo Speical Metals Co., Ltd.
- Takaki Hamada
- H01 - BASIC ELECTRIC ELEMENTS