Ryuichi Ozaki

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Nagano-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rare earth-iron series permanent magnets and method of preparation
- Patent number 6,136,099
- Issue date Oct 24, 2000
- Seiko Epson Corporation
- Koji Akioka
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Rare earth cast alloy permanent magnets and methods of preparation
- Patent number 5,597,425
- Issue date Jan 28, 1997
- Seiko Epson Corporation
- Koji Akioka
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Rare earth cast alloy permanent magnets and methods of preparation
- Patent number 5,565,043
- Issue date Oct 15, 1996
- Seiko Epson Corporation
- Koji Akioka
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Rare earth cast alloy permanent magnets and methods of preparation
- Patent number 5,560,784
- Issue date Oct 1, 1996
- Seiko Epson Corporation
- Koji Akioka
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Rare earth cast alloy permanent magnets and methods of preparation
- Patent number 5,538,565
- Issue date Jul 23, 1996
- Seiko Epson Corporation
- Koji Akioka
- B22 - CASTING POWDER METALLURGY