Kazushi Ohshima

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Production process of ferromagnetic iron powder
- Patent number 4,469,506
- Issue date Sep 4, 1984
- Mitsui Toatsu Chemicals, Incorporated
- Haruo Sekiguchi
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for preparing iron compound particles for use in magnetic r...
- Patent number 4,342,589
- Issue date Aug 3, 1982
- Mitsui Toatsu Chemicals, Inc.
- Kazushi Ohshima
- G11 - INFORMATION STORAGE