Hidenori Sawabe

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic powder for magnetic recording media
- Patent number 5,062,982
- Issue date Nov 5, 1991
- Nippon Zeon Co., Ltd.
- Haruhisa Yamamoto
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Magnetic powder for magnetic recording media
- Patent number 5,062,983
- Issue date Nov 5, 1991
- Nippon Zeon Co., Ltd.
- Haruhisa Yamamoto
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES