Yoshinari Ishii

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Ohmiya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing a rare earth magnetic powder having high m...
- Patent number 5,993,732
- Issue date Nov 30, 1999
- Mitsubishi Materials Corporation
- Ryoji Nakayama
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method for producing rare earth alloy magnet powder
- Patent number 5,417,773
- Issue date May 23, 1995
- Mitsubishi Materials Corporation
- Ryoji Nakayama
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Magnetic recording powder having a high coercive force at room temp...
- Patent number 5,211,770
- Issue date May 18, 1993
- Mitsubishi Materials Corporation
- Ginya Ishiguro
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY