Fujio Hayashi

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ferromagnetic metal particles and preparation process thereof
- Patent number 5,188,898
- Issue date Feb 23, 1993
- Mitsui Toatsu Chemicals, Incorporated
- Kimiteru Tagawa
- G11 - INFORMATION STORAGE
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